JP3262264B2 - Electrolytic capacitor sealing performance inspection apparatus and inspection method - Google Patents
Electrolytic capacitor sealing performance inspection apparatus and inspection methodInfo
- Publication number
- JP3262264B2 JP3262264B2 JP09668597A JP9668597A JP3262264B2 JP 3262264 B2 JP3262264 B2 JP 3262264B2 JP 09668597 A JP09668597 A JP 09668597A JP 9668597 A JP9668597 A JP 9668597A JP 3262264 B2 JP3262264 B2 JP 3262264B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid tank
- electrolytic capacitor
- pressure
- liquid
- sealing performance
- 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.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 title claims description 60
- 238000007789 sealing Methods 0.000 title claims description 21
- 238000007689 inspection Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 8
- 239000007788 liquid Substances 0.000 claims description 52
- 238000012545 processing Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000002950 deficient Effects 0.000 description 8
- 239000011888 foil Substances 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002990 reinforced plastic Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000012850 discrimination method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電解コンデンサの
封口部における封口性能の良否を確実、かつ容易に検査
することができる電解コンデンサの封口性能検査装置お
よび同検査方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for inspecting the sealing performance of an electrolytic capacitor, which can surely and easily inspect the sealing performance at the sealing portion of the electrolytic capacitor.
【０００２】[0002]
【従来の技術】図２と図３とは、一般的な電解コンデン
サの内部構造をタイプ別に例示したものである。2. Description of the Related Art FIGS. 2 and 3 illustrate the internal structure of a general electrolytic capacitor by type.
【０００３】このうち、図２に示す電解コンデンサ１
は、粗面化されたアルミニウム箔の表面に陽極酸化によ
り誘電体酸化皮膜を形成してなる陽極箔と、該陽極箔と
対極する粗面化されたアルミニウム箔からなる陰極箔と
のそれぞれに、対応する外部リード端子２ａ，２ｂをか
しめなどの方法により個別に接続した後、セパレータ
（電解紙）を介して巻回してなるコンデンサ素子２を備
えている。The electrolytic capacitor 1 shown in FIG.
An anode foil formed by forming a dielectric oxide film by anodic oxidation on the surface of a roughened aluminum foil, and a cathode foil made of a roughened aluminum foil opposite to the anode foil, The capacitor element 2 is provided by individually connecting the corresponding external lead terminals 2a and 2b by caulking or the like, and then winding the same via a separator (electrolytic paper).
【０００４】上記電解コンデンサ１は、セパレータ（電
解紙）に駆動用電解液を含浸させた後に封口体３を装着
させたコンデンサ素子２をアルミニウムなどからなる有
底のケース４内に収納し、該ケース４の開口部を巻締め
て密封することにより形成されている。In the electrolytic capacitor 1, a separator (electrolytic paper) is impregnated with a driving electrolytic solution, and then a capacitor element 2 having a sealing body 3 mounted thereon is housed in a bottomed case 4 made of aluminum or the like. It is formed by winding and sealing the opening of the case 4.
【０００５】また、図３に示す電解コンデンサ５は、図
２におけると同様の構成からなる陽極箔と陰極箔とのそ
れぞれに、対応する内部端子６ａ，６ｂをかしめなどの
方法により個別に接続した後、セパレータ（電解紙）を
介して巻回してなるコンデンサ素子６を備えている。In the electrolytic capacitor 5 shown in FIG. 3, the internal terminals 6a and 6b corresponding to the anode foil and the cathode foil having the same structure as in FIG. 2 are individually connected by caulking or the like. Thereafter, a capacitor element 6 wound around a separator (electrolytic paper) is provided.
【０００６】上記電解コンデンサ５は、セパレータ（電
解紙）に駆動用電解液を含浸させた後、ベーク板の外側
にゴム板を張り合せてなる封口体７が備える一方の接続
金具７ａには一方の内部端子６ａと外部端子８ａとを、
他方の接続金具７ｂには他方の内部端子６ｂと外部端子
８ｂとをそれぞれ接続させた上で、コンデンサ素子６を
封口体７とともにアルミニウムなどからなる有底のケー
ス９内に収納し、該ケース９の開口部を巻締めて密封す
ることにより形成されている。[0006] The electrolytic capacitor 5 includes a separator (electrolytic paper) impregnated with a driving electrolytic solution, and a sealing member 7 formed by laminating a rubber plate on the outside of a bake plate. Of the internal terminal 6a and the external terminal 8a
After connecting the other internal terminal 6b and the external terminal 8b to the other connection fitting 7b, respectively, the capacitor element 6 is housed together with the sealing body 7 in a bottomed case 9 made of aluminum or the like. Is formed by winding and sealing the opening.
【０００７】ところで、上記電解コンデンサにおいて、
封口体とケースとの間に確保される封口性能に問題があ
って気密性が十分に保持されていない場合には、駆動用
電解液が漏出してしまうおそれがあり、結果的に寿命を
短くしたり、性能的な特性に好ましくない影響を及ぼす
などの不都合が生ずる。By the way, in the above electrolytic capacitor,
If there is a problem in the sealing performance secured between the sealing body and the case and the airtightness is not sufficiently maintained, the driving electrolyte may leak, resulting in a shortened life. And disadvantages such as unfavorable effects on performance characteristics.
【０００８】このため、電解コンデンサの封口性能につ
いては、検査対象となっている個々の製品の寸法や外観
形状を基準となるべき良品と比較して異常の有無を確認
したり、例えば摂氏９５度前後の温水中に没入してケー
ス内の空気を膨張させ、その際に気泡が発生するか否か
を確認することにより、その良否を判別して不良品を排
除するようにしていた。For this reason, regarding the sealing performance of the electrolytic capacitor, the size and appearance of each product to be inspected are compared with non-defective products to be used as a reference to confirm the presence or absence of an abnormality, for example, at 95 degrees Celsius. By immersing in the warm water before and after to inflate the air in the case and confirming whether or not bubbles are generated at that time, the quality of the air bubbles is determined and defective products are eliminated.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、従来か
ら行われている上記判別手法のうち、製品の寸法や外観
形状を比較する従来手法は、熟練度の高い観察眼が要求
されるばかりでなく、不良品を良品と誤認する可能性も
皆無とはいえない問題があった。また、温水を用いる従
来手法は、性能・品質との関係もあって長時間にわたり
高温雰囲気中にさらしておくことはできず、不良品であ
ってもケース内の昇圧が不十分で気泡が発生しないこと
もあり、結果的に不良品を良品と誤認してしまうおそれ
があった。つまり、いずれの従来手法によっても不良品
を１００％排除することはできないという問題があっ
た。However, among the above-mentioned conventional discrimination methods, the conventional method of comparing the dimensions and appearance of products requires not only a highly skilled observation eye, but also There was a problem that there was no possibility that a defective product could be mistaken for a good product. In addition, the conventional method using hot water cannot be exposed to a high-temperature atmosphere for a long time due to the relationship between performance and quality. As a result, there is a possibility that a defective product is erroneously recognized as a good product. That is, there is a problem that 100% of defective products cannot be eliminated by any of the conventional methods.
【００１０】[0010]
【課題を解決するための手段】上記の課題を解決するた
めに、本発明に係る検査装置は、貯留された液体中への
電解コンデンサの没入を自在に形成された液槽と、該液
槽を外気から遮断して収納を自在に形成された耐圧容器
と、該耐圧容器に空気引きを自在に接続された真空ポン
プとを少なくとも備え、前記液槽と耐圧容器とは、定置
板に仮固定して液体中に没入させた複数個の電解コンデ
ンサの透視を自在にして形成するとともに、前記液槽
は、クッション性を備える載置台を介して前記耐圧容器
の内底面上に配設して構成されている。In order to solve the above-mentioned problems, an inspection apparatus according to the present invention comprises: a liquid tank formed so that an electrolytic capacitor can be immersed in a stored liquid; At least a pressure-resistant container that is formed so as to be housed by shutting off from the outside air, and a vacuum pump that is connected to the pressure-resistant container so that air can be freely drawn. The liquid tank and the pressure-resistant container are fixed.
Several electrolytic capacitors temporarily fixed to a plate and immersed in liquid
And the liquid tank
The pressure-resistant container via a mounting table having cushioning properties
It is arranged and arranged on the inner bottom surface .
【００１１】また、本発明に係る検査方法は、貯留され
た液体中に定置板に仮固定した複数個の電解コンデンサ
を没入させてなる液槽を密閉空間内に配置した後、該密
閉空間内を空気引きして負圧とした際における液槽内の
電解コンデンサから発生する気泡の有無の目視による判
別と、負圧状態にある液槽内の電解コンデンサを映像化
して画像データに変換し、該画像データを解析する画像
処理を経て気泡が発生している電解コンデンサの特定と
を併用して各電解コンデンサの封口性能の良否を確認す
ることにより行われる。[0011] In addition, the inspection method according to the present invention is preferably arranged such that a liquid tank formed by immersing a plurality of electrolytic capacitors temporarily fixed to a stationary plate in a stored liquid is placed in the closed space. The presence or absence of air bubbles generated from the electrolytic capacitor in the liquid tank when the air is drawn to a negative pressure.
Separately, visualization of the electrolytic capacitor in the liquid tank under negative pressure
To convert to image data and analyze the image data
Identify electrolytic capacitors with air bubbles generated after processing
It is performed by confirming the quality of the sealing performance of each electrolytic capacitor in combination with the above.
【００１２】[0012]
【発明の実施の形態】図１は、本発明に係る検査装置の
一例についての概略構成図であり、その全体は、貯留さ
れた液体Ｌ中への電解コンデンサＣの没入を自在に形成
された液槽１１と、該液槽１１を外気から遮断して収納
する耐圧容器１５と、該耐圧容器１５からの空気引きを
自在に配設された真空ポンプＰとを少なくとも備えて構
成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic structural view of an example of an inspection apparatus according to the present invention, and the whole is formed so that an electrolytic capacitor C can be freely immersed in a stored liquid L. The apparatus comprises at least a liquid tank 11, a pressure-resistant container 15 for accommodating the liquid tank 11 from outside air, and a vacuum pump P arranged to freely draw air from the pressure-resistant container 15.
【００１３】このうち、液槽１１は、例えば透明な強化
ガラスや強化プラスチックなどにより検査対象となって
いる電解コンデンサＣの座高との関係で定まる適宜深さ
を備えて形成されている。該液槽１１内には、定置板１
２に安定的に仮固定して配置されている２個以上の電解
コンデンサＣを完全に没入することができる量の液体
Ｌ、例えば純水を含む水やエチレングリコールを含むア
ルコール液を貯留することができるようになっている。The liquid tank 11 is formed of, for example, transparent reinforced glass or reinforced plastic and has an appropriate depth determined by the height of the electrolytic capacitor C to be inspected. The liquid tank 11, a constant plate 1
2. An amount of liquid L that can completely immerse two or more electrolytic capacitors C, which are stably temporarily fixed and disposed , for example, water containing pure water or alcohol liquid containing ethylene glycol. Is available.
【００１４】また、液槽１１を収納する耐圧容器１５
は、外気と完全に遮断された密閉空間１６をその内部に
形成し得る気密性を備え、かつ大気圧より低圧となって
も十分な保形性を備える例えば透明な強化ガラスや強化
プラスチックなどで形成されている。該耐圧容器１５
は、液槽１１を安定的に載置することができるようにク
ッション性を備える載置台１８が内底面上に配設されて
いる。 A pressure-resistant container 15 for accommodating the liquid tank 11
Is made of, for example, a transparent reinforced glass or a reinforced plastic having airtightness capable of forming an enclosed space 16 completely shut off from outside air and having sufficient shape retention even when the pressure is lower than the atmospheric pressure. Is formed. The pressure vessel 15
Is disposed on the mounting table 18 is the inner on the bottom surface comprises a click <br/> cushion property to be able to stably mount the liquid tank 11
I have.
【００１５】しかも、上記耐圧容器１５の適宜の位置に
は、密閉空間１６と連通して外方に突出させた接続管部
１７が設けられているほか、液槽１１を出し入れするた
めに必要な開閉蓋などのような適宜構造の開閉手段（図
示せず）なども備えて形成されている。In addition, at an appropriate position of the pressure-resistant container 15, there is provided a connecting pipe portion 17 which is communicated with the sealed space 16 and protrudes outward, and is necessary for taking the liquid tank 11 in and out. An opening / closing means (not shown) having an appropriate structure such as an opening / closing lid is provided.
【００１６】さらに、真空ポンプＰは、該真空ポンプＰ
に一端部２１ａを接続し、他端部２１ｂを耐圧容器１５
の接続管部１７に接続させたパイプ２１を介在させるこ
とにより、耐圧容器１５内の密閉空間１６からの空気引
きが自在となって接続されている。この場合における耐
圧容器１５の密閉空間１６内の圧力は、適宜の圧力計
（図示せず）を設置することにより逐次計測して確認す
ることができるようにしておくのが望ましい。Further, the vacuum pump P is
Is connected to one end 21a, and the other end 21b is connected to the pressure-resistant container 15
By interposing the pipe 21 connected to the connection pipe portion 17 of the above, the air can be freely drawn from the sealed space 16 in the pressure-resistant container 15 and connected. In this case, it is desirable that the pressure in the closed space 16 of the pressure-resistant container 15 can be sequentially measured and confirmed by installing an appropriate pressure gauge (not shown).
【００１７】なお、液槽１１と耐圧容器１５とは、液体
Ｌ中に没入されている電解コンデンサＣのすべてを透視
することができる透明性をその一部に、もしくは全部に
備えて形成されている。 The liquid tank 11 and the pressure-resistant container 15 are formed so as to partially or entirely have transparency so that all of the electrolytic capacitor C immersed in the liquid L can be seen through. I have.
【００１８】次に、本発明に係る上記検査装置に適用し
て実現される本発明に係る検査方法を、その作用ととも
に以下に説明する。Next, an inspection method according to the present invention, which is realized by applying the above-described inspection apparatus according to the present invention, together with its operation, will be described below.
【００１９】液槽１１内には、検査対象となっている２
個以上の電解コンデンサＣを図１に示すように定置板１
２に個別に起立状態に仮固定して導入することにより配
置される。In the liquid tank 11, the inspection target 2
As shown in FIG.
It is arranged by temporarily fixed to introduction to Rukoto individually standing state 2.
【００２０】電解コンデンサＣが導入された液槽１１内
には、水やエチレングリコールなどの液体Ｌを電解コン
デンサＣの座高を上回る量となるまで供給し、貯留され
た液体Ｌ中に電解コンデンサＣを完全に没入させる。な
お、この場合、液槽１１内に液体Ｌを貯留させた後、該
液体Ｌ中に事後的に電解コンデンサＣを没入させるもの
であってもよい。A liquid L such as water or ethylene glycol is supplied into the liquid tank 11 into which the electrolytic capacitor C has been introduced until the amount thereof exceeds the sitting height of the electrolytic capacitor C. Completely immersive. In this case, after the liquid L is stored in the liquid tank 11, the electrolytic capacitor C may be immersed in the liquid L ex post facto.
【００２１】このようにして液槽１１内の液体Ｌ中に複
数個の電解コンデンサＣを没入させた後は、開閉蓋等の
開閉手段を適宜操作して耐圧容器１５を開け、該耐圧容
器１５の内底面に用意されている該載置台１８上に液槽
１１を載置した後、開閉手段を閉止することにより該液
槽１１を密閉空間１６内に定置する。In this manner, multiple copies of the liquid L in the liquid tank 11 are stored.
After the several electrolytic capacitors C are immersed, the pressure-resistant container 15 is opened by appropriately operating opening / closing means such as an opening / closing lid, and a liquid tank is placed on the mounting table 18 provided on the inner bottom surface of the pressure-resistant container 15.
After placing the 11 to position the liquid tank 11 into the closed space 16 by closing the switching means.
【００２２】このようにして液槽１１を密閉空間１６内
に定置した後は、真空ポンプＰを駆動させることによ
り、パイプ２１を介して耐圧容器１５の密閉空間１６内
から空気引きをする。このような空気引きを所定の時間
をかけて行うことにより、密閉空間１６内は、次第に負
圧状態となる。After the liquid tank 11 is fixed in the closed space 16 in this way, the vacuum pump P is driven to draw air from the closed space 16 of the pressure-resistant container 15 through the pipe 21. By performing such air bleeding for a predetermined time, the inside of the sealed space 16 gradually becomes a negative pressure state.
【００２３】この場合、密閉空間１６内に形成される負
圧が大気圧の５０％となるように設定して空気引きする
ならば、電解コンデンサＣに対し２倍の圧力検査を施す
ことになり、大気圧の２５％に設定して空気引きをする
ならば、４倍の圧力検査を施すことになり、いずれにし
ても電解コンデンサＣの封口性能を適宜設定される過酷
な負圧状態のもとで検査することができることになる。In this case, if the negative pressure formed in the closed space 16 is set to be 50% of the atmospheric pressure and air is drawn, the pressure test for the electrolytic capacitor C is performed twice. If the air is set at 25% of the atmospheric pressure and the air is drawn, a four-fold pressure test will be performed. In any case, even in a severe negative pressure state where the sealing performance of the electrolytic capacitor C is appropriately set. And it can be inspected.
【００２４】上記空気引き処理を経ることにより、液槽
１１内の液体Ｌ中に没入されている電解コンデンサＣ
は、その内部に封入されている空気の体積がボイル・シ
ャルルの法則に従い膨張する。つまり、電解コンデンサ
Ｃの内圧が上昇する結果、仮に封口性能に問題がある電
解コンデンサＣが混入している場合には、図１において
右端に位置している電解コンデンサＣのように気泡Ｂが
発生するに至り、この気泡Ｂの有無を確認することによ
り、封口性能に難がある電解コンデンサＣを不良品とし
て特定することができる。After the above-described air drawing process, the electrolytic capacitor C immersed in the liquid L in the liquid tank 11
Expands according to Boyle-Charles' law in the volume of air enclosed therein. That is, as a result of the increase in the internal pressure of the electrolytic capacitor C, if the electrolytic capacitor C having a problem in sealing performance is mixed, bubbles B are generated as in the electrolytic capacitor C located at the right end in FIG. Then, by confirming the presence or absence of the bubble B, the electrolytic capacitor C having difficulty in sealing performance can be specified as a defective product.
【００２５】しかも、この場合に発生する気泡Ｂの有無
は、耐圧容器１５と液槽１１とがともに外部から確実に
透視できる構造を備えていることから、検査員が目視す
るのみでも極く容易に確認することができるので、良否
の判別も極く容易に行うことができる。[0025] Moreover, the presence or absence of air bubbles B generated in this case, since the pressure vessel 15 and the liquid tank 11 are both provided with a reliably perspective it can structure externally, very even only inspector visually Since it is possible to easily confirm the quality, it is possible to very easily determine the quality.
【００２６】また、一度に検査しようとする電解コンデ
ンサＣの数が多い場合には、後列に位置する電解コンデ
ンサＣが前列に位置する電解コンデンサＣの背後に隠れ
てしまったりして目視による確認が困難になる。このた
め、検査員の目視による判別と併せて、負圧状態にある
液槽内の電解コンデンサをビデオカメラなどの撮像手段
を介して映像化して目視により確認したり、さらには必
要に応じて画像データにディジタル変換してコンピュー
タにより認識と解析とを行わせる画像処理を経ることに
より、気泡が発生している電解コンデンサを特定した上
での良否の判別 を行う。 [0026] In addition, when the number of electrolytic capacitor C to be examined is large at a time, to be confirmed by the visually or've hidden behind the electrolytic capacitor C of the electrolytic capacitor C is located in the front row is located in the back row It becomes difficult. This was
In addition to the visual discrimination by the inspector , the electrolytic capacitor in the liquid tank under negative pressure is visualized via imaging means such as a video camera and visually checked. By performing digital processing and performing image processing for performing recognition and analysis by a computer, the quality of the electrolytic capacitor in which bubbles are generated is determined after the electrolytic capacitor is identified .
【００２７】なお、本明細書において「目視」とは、電
解コンデンサＣを現場で直接見る場合のほか、テレビカ
メラやビデオカメラなどを介して得られた画像を画面を
介して間接的に見る場合も含むものとする。[0027] In this specification, "visual" refers to not only a case where the electrolytic capacitor C is viewed directly on site, but also a case where an image obtained through a television camera or a video camera is viewed indirectly through a screen. Shall be included.
【００２８】[0028]
【発明の効果】以上にて述べたように本発明に係る検査
装置によれば、その構成を簡素化することにより検査コ
ストの上昇を抑制するなかで、液槽をクッション性を備
える載置台を介して前記耐圧容器の内底面上に安定的に
載置した上で、定置板を介して液槽内に電解コンデンサ
を安定的に仮固定できるので、複数個の電解コンデンサ
の封口性能の良否を簡易、かつ確実に判別する検査体制
の確立に寄与させることができる。As described above, according to the inspection apparatus of the present invention, the liquid tank is provided with cushioning properties while suppressing an increase in inspection cost by simplifying the configuration.
Stably on the inner bottom surface of the pressure vessel via the mounting table
After placing it, place the electrolytic capacitor in the liquid tank via the stationary plate.
The as it can stably temporary fixing, it is possible to contribute to the establishment of the inspection system to determine the quality of the sealing performance of a plurality of electrolytic capacitors easily and reliably.
【００２９】また、本発明に係る検査方法によれば、検
査対象となっている電解コンデンサの数が仮に多くて
も、気泡発生の有無の目視による確認と併せて負圧状態
にある液槽内の複数個の電解コンデンサを映像化して画
像データにディジタル変換して解析する画像処理をも経
て良否の判別を正確に行うことができるので、不良品を
良品と誤認する可能性を根絶して、常に良品のみを製品
として市場に出荷することができる。 Further, according to the inspection method according to the present invention, test
If the number of electrolytic capacitors being inspected is large,
Also under negative pressure with visual confirmation of the presence or absence of bubbles
Of multiple electrolytic capacitors in the liquid tank
Through image processing for digital conversion to image data and analysis
Quality can be accurately determined by using
Eliminate the possibility of being mistaken for non-defective products and always use only non-defective products
As can be shipped to the market.
【図１】本発明に係る電解コンデンサの封口性能検査装
置の一例を示す概略説明図。FIG. 1 is a schematic explanatory view showing an example of an electrolytic capacitor sealing performance inspection apparatus according to the present invention.
【図２】従来からある電解コンデンサの一例につき、そ
の内部構造を示す説明図。FIG. 2 is an explanatory view showing an internal structure of an example of a conventional electrolytic capacitor.
【図３】従来からある電解コンデンサの他例につき、そ
の内部構造を示す説明図。FIG. 3 is an explanatory view showing the internal structure of another example of a conventional electrolytic capacitor.
１１ 液槽 １２ 定置板 １５ 耐圧容器 １６ 密閉空間 １７ 接続管部 １８ 載置台 ２１ パイプ Ｌ 液体 Ｐ 真空ポンプ Ｃ 電解コンデンサ Ｂ 気泡 DESCRIPTION OF SYMBOLS 11 Liquid tank 12 Stationary plate 15 Pressure-resistant container 16 Sealed space 17 Connecting pipe part 18 Mounting table 21 Pipe L Liquid P Vacuum pump C Electrolytic capacitor B Bubbles
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平９−43090（ＪＰ，Ａ) 特開 平９−43089（ＪＰ，Ａ) 特開 昭52−56590（ＪＰ，Ａ) 特開 平６−207879（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G01M 3/06 H01G 13/00 371 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-9-43090 (JP, A) JP-A-9-43089 (JP, A) JP-A-52-56590 (JP, A) JP-A-6-43090 207879 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) G01M 3/06 H01G 13/00 371
Claims (2)
入を自在に形成された液槽と、該液槽を外気から遮断し
て収納を自在に形成された耐圧容器と、該耐圧容器に空
気引きを自在に接続された真空ポンプとを少なくとも備
え、前記液槽と耐圧容器とは、定置板に仮固定して液体
中に没入させた複数個の電解コンデンサの透視を自在に
して形成するとともに、前記液槽は、クッション性を備
える載置台を介して前記耐圧容器の内底面上に配設した
ことを特徴とする電解コンデンサの封口性能検査装置。1. A liquid tank formed so that an electrolytic capacitor can be immersed in a stored liquid, a pressure container formed so as to be able to store the liquid tank by blocking the liquid tank from the outside air, At least a vacuum pump freely connected to draw air , the liquid tank and the pressure vessel are temporarily fixed to a stationary plate and
Freely see through multiple electrolytic capacitors immersed inside
And the liquid tank has cushioning properties.
A sealing performance inspection apparatus for an electrolytic capacitor, which is disposed on an inner bottom surface of the pressure-resistant container via a mounting table .
数個の電解コンデンサを没入させてなる液槽を密閉空間
内に配置した後、該密閉空間内を空気引きして負圧とし
た際における液槽内の電解コンデンサから発生する気泡
の有無の目視による判別と、負圧状態にある液槽内の電
解コンデンサを映像化して画像データに変換し、該画像
データを解析する画像処理を経て気泡が発生している電
解コンデンサの特定とを併用することにより、各電解コ
ンデンサの封口性能の良否を確認することを特徴とする
電解コンデンサの封口性能検査方法。2. A method according to claim 1, wherein said liquid is temporarily fixed to a stationary plate in the stored liquid.
After arranging a liquid tank in which several electrolytic capacitors are immersed in a closed space, and visually evacuating the closed space to a negative pressure to visually check the presence or absence of bubbles generated from the electrolytic capacitor in the liquid tank. And the voltage in the liquid tank under negative pressure
The solution capacitor is visualized and converted into image data,
After the image processing that analyzes the data,
A method for inspecting the sealing performance of electrolytic capacitors, wherein the quality of sealing performance of each electrolytic capacitor is checked by using together with the specification of a dissolving capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09668597A JP3262264B2 (en) | 1997-03-31 | 1997-03-31 | Electrolytic capacitor sealing performance inspection apparatus and inspection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09668597A JP3262264B2 (en) | 1997-03-31 | 1997-03-31 | Electrolytic capacitor sealing performance inspection apparatus and inspection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10281916A JPH10281916A (en) | 1998-10-23 |
| JP3262264B2 true JP3262264B2 (en) | 2002-03-04 |
Family
ID=14171656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09668597A Expired - Fee Related JP3262264B2 (en) | 1997-03-31 | 1997-03-31 | Electrolytic capacitor sealing performance inspection apparatus and inspection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3262264B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004245752A (en) * | 2003-02-17 | 2004-09-02 | Murata Mfg Co Ltd | Method and apparatus for sealing test |
| JP4925904B2 (en) * | 2007-04-26 | 2012-05-09 | 三菱電機株式会社 | Leak inspection method and leak inspection apparatus |
| CN103681009B (en) * | 2013-12-20 | 2016-03-23 | 刘磊 | A kind of electric capacity filling and sealing machine of conveniently assemble and disassemble |
| CN103681011B (en) * | 2013-12-20 | 2016-03-30 | 刘磊 | A kind of recovery glue electric capacity filling and sealing machine |
| CN109967386B (en) * | 2019-04-16 | 2021-06-01 | 浙江冰尔新型制冷剂有限公司 | Aerosol can filling leakage detection production line and leakage detection method thereof |
| CN116793850A (en) * | 2023-05-06 | 2023-09-22 | 中科南京未来能源系统研究院 | Fatigue test device and method for anti-corrosion material on inner surface of gas storage container |
-
1997
- 1997-03-31 JP JP09668597A patent/JP3262264B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10281916A (en) | 1998-10-23 |
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