JPH0525224Y2 - - Google Patents
Info
- Publication number
- JPH0525224Y2 JPH0525224Y2 JP5860887U JP5860887U JPH0525224Y2 JP H0525224 Y2 JPH0525224 Y2 JP H0525224Y2 JP 5860887 U JP5860887 U JP 5860887U JP 5860887 U JP5860887 U JP 5860887U JP H0525224 Y2 JPH0525224 Y2 JP H0525224Y2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- insulating
- porcelain
- dielectric
- capacitor
- 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 - Lifetime
Links
- 229920005989 resin Polymers 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 34
- 239000003990 capacitor Substances 0.000 claims description 22
- 229910052573 porcelain Inorganic materials 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 239000003985 ceramic capacitor Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 11
- 239000004020 conductor Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 239000003989 dielectric material Substances 0.000 description 3
- NFLLKCVHYJRNRH-UHFFFAOYSA-N 8-chloro-1,3-dimethyl-7H-purine-2,6-dione 2-(diphenylmethyl)oxy-N,N-dimethylethanamine Chemical compound O=C1N(C)C(=O)N(C)C2=C1NC(Cl)=N2.C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 NFLLKCVHYJRNRH-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000006903 response to temperature Effects 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、耐高温負荷特性と耐ヒートサイクル
特性の双方に優れた高圧貫通型磁器コンデンサに
関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a high-voltage feedthrough ceramic capacitor that is excellent in both high-temperature load resistance and heat cycle resistance.
高圧貫通型磁器コンデンサは電子レンジのマグ
ネトロン管等のフィルターコンデンサとして使用
されている。
High-voltage feed-through porcelain capacitors are used as filter capacitors for magnetron tubes in microwave ovens, etc.
この種のコンデンサの一例を挙げると第３図示
び第４図に示すように、貫通孔１２，１３を設け
た磁器誘電体１１の片面にコンデンサ電極１４，
１５を配設する一方その反対の対向面にもコンデ
ンサ電極１６を配設し、これらコンデンサ電極１
４，１５，１６に磁器誘電体１１の貫通孔１２，
１３に対応して適合する孔部を設けてある。そし
てコンデンサ電極１６を、中央部に窓１８を開口
した接地板１７に連接し、中心導体１９，１９ａ
の導体部１９−１，１９ａ−１をコンデンサ電極
１４，１５に連接される金具２０，２０ａを介
し、コンデンサ電極１４，１５、磁器誘電体１
１、コンデンサ電極１６及び接地板１７の窓１８
を順次貫通し、導体部１９−１，１９ａ−１をシ
リコンチューブ２１，２１ａで保護し、さらに接
地板１７の両面に絶縁ケース２２、絶縁カバー２
３を設けてこれらを覆い、その内部にエポキシ樹
脂などの絶縁性樹脂モールド２４で固定してあ
る。なお、中心導体１９，１９ａは、導体部１９
−１，１９ａ−１とファストンタブ部１９−２，
１９ａ−２とが一体となるように成形されてい
る。 To give an example of this type of capacitor, as shown in FIGS. 3 and 4, a capacitor electrode 14 is formed on one side of a ceramic dielectric 11 provided with through holes 12 and 13.
15, while a capacitor electrode 16 is also provided on the opposite surface, and these capacitor electrodes 1
4, 15, 16 through holes 12 of the ceramic dielectric 11,
A matching hole is provided corresponding to 13. Then, the capacitor electrode 16 is connected to a grounding plate 17 having a window 18 in the center, and the center conductor 19, 19a
The conductor portions 19-1, 19a-1 are connected to the capacitor electrodes 14, 15 and the ceramic dielectric 1 via metal fittings 20, 20a connected to the capacitor electrodes 14, 15.
1. Window 18 of capacitor electrode 16 and ground plate 17
The conductor portions 19-1 and 19a-1 are protected with silicone tubes 21 and 21a, and an insulating case 22 and an insulating cover 2 are provided on both sides of the ground plate 17.
3 is provided to cover these, and is fixed inside with an insulating resin mold 24 such as epoxy resin. Note that the center conductors 19 and 19a are connected to the conductor portion 19.
-1, 19a-1 and faston tab part 19-2,
19a-2 are formed integrally with each other.
上記従来のコンデンサでは絶縁性樹脂モールド
２４は耐熱、耐電圧性のエポキシ 樹脂で形成さ
れていたため、耐ヒートサイクル特性に欠けてい
て高圧用コンデンサとして充分な性能を備えたも
のではなかった。
In the conventional capacitor described above, the insulating resin mold 24 was made of a heat-resistant and voltage-resistant epoxy resin, so it lacked heat cycle resistance and did not have sufficient performance as a high-voltage capacitor.
すなわち、前記樹脂モールドとして熱変形温度
の高くて硬いエポキシ樹脂等を適用したものでは
耐熱性及び耐電圧性は優れているものの、逆にヒ
ートサイクル性が非常に劣り、コンデンサ使用時
に前記樹脂モールドと磁器誘電体外周面において
剥離が生じ耐電圧性が劣化するのが常であった。 In other words, a resin mold made of a hard epoxy resin with a high heat deformation temperature has excellent heat resistance and voltage resistance, but conversely has very poor heat cycle performance, making it difficult to use the resin mold when using a capacitor. It was common for peeling to occur on the outer peripheral surface of the porcelain dielectric, resulting in a deterioration in voltage resistance.
また、ヒートサイクル性を向上させるには熱変
形温度が低くて柔らかいエポキシ樹脂が効果的で
あるが、耐湿性や高温負荷特性に劣るのが一般的
であった。 In addition, epoxy resins that are soft and have a low heat distortion temperature are effective in improving heat cycle performance, but they are generally inferior in moisture resistance and high temperature load characteristics.
本考案は、従来のものの上記問題点に着目し、
耐高温負荷特性と耐電圧性および耐ヒートサイク
ル特性の双方に優れたコンデンサを提供すること
を目的とするものである。 This invention focuses on the above-mentioned problems of conventional ones, and
The purpose of this invention is to provide a capacitor that has excellent high-temperature load resistance, voltage resistance, and heat cycle resistance.
本考案は、絶縁ケースと絶縁カバーの間に接地
板を介在配備してなる筒体内に磁器誘電体を設
け、この磁器誘電体の周囲に絶縁性樹脂層を形成
した貫通型磁器コンデンサにおいて、前記磁器誘
電体の外周面側に形成される絶縁性樹脂層を互い
に面接触する内・外２重層構造のものとすると共
に、磁器誘電体の外周面と接する内層側を熱変形
温度が高く耐熱性及び耐電圧性に優れた樹脂と
し、外層側を熱変形温度が低くヒートサイクル性
に優れた樹脂としたことを特徴とする高圧貫通型
磁器コンデンサである。
The present invention provides a through-type ceramic capacitor in which a ceramic dielectric is provided inside a cylinder with a grounding plate interposed between an insulating case and an insulating cover, and an insulating resin layer is formed around the ceramic dielectric. The insulating resin layer formed on the outer circumferential surface of the porcelain dielectric has a double-layer structure of inner and outer layers that are in surface contact with each other, and the inner layer that is in contact with the outer circumferential surface of the porcelain dielectric has a high heat distortion temperature and is heat resistant. A high-voltage feedthrough porcelain capacitor is characterized in that the outer layer side is made of a resin having a low heat deformation temperature and excellent heat cycle properties.
本考案のコンデンサでは、磁器誘電体の外周面
と接触する内層側の絶縁性樹脂によりその耐熱性
及び耐電圧性が充足されると共に、コンデンサの
加熱、冷却時において外層側の絶縁性樹脂がコン
デンサの温度変化に順応して膨張・収縮変形する
ので前記内層側樹脂のヒートサイクル性の劣化を
防止し、もって耐熱性、耐電圧性、耐ヒートサイ
クル性を兼備した高圧貫通型磁器コンデンサが得
られるものである。
In the capacitor of the present invention, the heat resistance and voltage resistance are satisfied by the insulating resin on the inner layer side that contacts the outer peripheral surface of the ceramic dielectric, and the insulating resin on the outer layer side Since it expands and contracts in response to temperature changes, it prevents deterioration of the heat cycle properties of the inner layer resin, thereby providing a high-voltage feed-through porcelain capacitor that has heat resistance, voltage resistance, and heat cycle resistance. It is something.
本考案の実施例を第１図に基づいて説明する
と、コンデンサの全体構造は上記従来例と比べて
殆ど変わるところはないが、磁器誘電体を包囲す
る絶縁性樹脂層の構成が著しく相違している。
An embodiment of the present invention will be described with reference to FIG. 1. The overall structure of the capacitor is almost the same as that of the conventional example described above, but the configuration of the insulating resin layer surrounding the ceramic dielectric is significantly different.
すなわち、第１図において磁器誘電体１１の周
囲のうち、その外周面側の樹脂層は内・外２重層
構造となっており、磁器誘電体１１の外周面、接
地板１７の外周面及び金具２０の外周面と接触す
る内層側の樹脂２４1a及びこの磁器誘電体１１の
内周面（貫通孔１２，１３の内周面側）、接地板
１７の内周面及び電極接続用の金具２０の内周面
と接触する樹脂２４2は熱変形温度の高いエポキ
シ樹脂で形成され、また絶縁ケース２２の内周面
と接触し、内層側樹脂２４1aと接触する外層側の
樹脂２４3は熱変形温度が低いエポキシ樹脂で形
成されている。なお図中２５はガラスグレーズで
あり、また第４図に記入した符号と同一の符号を
付した部材は、第４図のものと同一の機能を有す
る部材であることを示している。 That is, in FIG. 1, the resin layer on the outer peripheral surface side of the porcelain dielectric 11 has an inner/outer double layer structure, and the outer peripheral surface of the ceramic dielectric 11, the outer peripheral surface of the ground plate 17, and the metal fittings 20, the inner circumferential surface of the ceramic dielectric 11 (the inner circumferential surface side of the through holes 12 and 13), the inner circumferential surface of the grounding plate 17, and the metal fittings 20 for electrode connection. The resin 24 2 in contact with the inner peripheral surface of the insulating case 22 is made of epoxy resin with a high heat deformation temperature, and the outer resin 24 3 in contact with the inner peripheral surface of the insulating case 22 and in contact with the inner resin 24 1a is made of an epoxy resin with a high heat deformation temperature. Made of epoxy resin with low deformation temperature. Note that 25 in the figure is a glass glaze, and members with the same reference numerals as those shown in FIG. 4 indicate members having the same functions as those shown in FIG. 4.
しかして、前記樹脂層を構成するに際しては、
まず樹脂２４2を注型し、次に樹脂２４1aを注型
して仮硬化の後、注型ケース（図示せず）を剥離
除去し、次いで、絶縁ケース２２を接地板１７の
外周面に嵌合させ、絶縁樹脂２４3を注型し、硬
化させる。 However, when forming the resin layer,
First, the resin 24 2 is cast, then the resin 24 1a is cast, and after temporary curing, the casting case (not shown) is peeled off and then the insulating case 22 is placed on the outer peripheral surface of the ground plate 17. After fitting, insulating resin 24 3 is cast and hardened.
次に第２図は別の実施例に係るもので、この実
施例では、まず内周面側樹脂２４2として実施例
１のものと同一のエポキシ樹脂を注型し、次いで
内層側樹脂２４1bとして熱変形温度の高いエポキ
シ樹脂の粉体塗料を磁器誘電体１１、金具２０，
２０ａ及び接地板１７の各外周面に塗装後、絶縁
ケース２２を接地板１７に嵌合し、外層側樹脂２
４3として前記粉体塗料に比べ熱変形温度が充分
低いエポキシ樹脂を注入後、前記樹脂２４1bと２
４3を同時に硬化させてなるものである。 Next, FIG. 2 shows another example. In this example, the same epoxy resin as in Example 1 is first cast as the inner peripheral surface side resin 24 2 , and then the inner layer side resin 24 1b is cast. Porcelain dielectric material 11, metal fittings 20,
20a and the outer peripheral surfaces of the ground plate 17, the insulating case 22 is fitted to the ground plate 17, and the outer resin 2
After injecting an epoxy resin whose heat deformation temperature is sufficiently lower than that of the powder coating as 4 3 , the resins 24 1b and 2 are injected.
4 and 3 are cured at the same time.
この実施例では内層側樹脂２４1bとして粉体塗
料を適用するものであるから、実施例１に比べ内
層側樹脂層の成形工程が不要となり、しかも層厚
を自由に形成できる利点がある。 In this embodiment, since a powder coating is applied as the inner resin 24 1b , there is an advantage that a molding process for the inner resin layer is not required compared to embodiment 1, and the layer thickness can be formed freely.
以上述べたように、本考案のコンデンサは、磁
器誘電体の外周面を耐熱性及び耐電圧性に優れた
絶縁性樹脂で覆い、さらにその外側をヒートサイ
クル性に優れた絶縁性樹脂で覆つた形態としたの
で、内・外各層の樹脂の長所が生かされる結果、
耐高温負荷特性および耐電圧性と耐ヒートサイク
ル特性の双方を満足する高圧磁器コンデンサが得
られるものである。
As described above, the capacitor of the present invention covers the outer peripheral surface of the porcelain dielectric material with an insulating resin that has excellent heat resistance and voltage resistance, and further covers the outside with an insulating resin that has excellent heat cycle properties. As a result, the advantages of the resin in the inner and outer layers are utilized.
A high-voltage porcelain capacitor that satisfies both high-temperature load resistance, voltage resistance, and heat cycle resistance can be obtained.
第１図は本考案の実施例の正面一部断面図、第
２図は別の実施例の正面一部断面図、第３図及び
第４図は従来例に係るもので第３図は組立説明
図、第４図は正面断面図である。
１１……磁器誘電体、１２，１３……貫通孔、
１４〜１６……コンデンサ電極、１７……接地
板、１８……窓、１９，１９ａ……中心導体、１
９−１，１９ａ−１……導体部、１９−２，１９
ａ−２……ファストンタブ部、２０，２０ａ……
金具、２１，２１ａ……シリコンチューブ、２２
……絶縁ケース、２３……絶縁カバー、２４1a，
２４1b，２４2，２４3……樹脂、２５……ガラス
グレーズ。
Fig. 1 is a front partial sectional view of an embodiment of the present invention, Fig. 2 is a front partial sectional view of another embodiment, Figs. 3 and 4 are related to a conventional example, and Fig. 3 is an assembled one. The explanatory diagram, FIG. 4, is a front sectional view. 11...Porcelain dielectric material, 12, 13...Through hole,
14-16...Capacitor electrode, 17...Grounding plate, 18...Window, 19, 19a...Center conductor, 1
9-1, 19a-1...Conductor part, 19-2, 19
a-2... Faston tab part, 20, 20a...
Metal fittings, 21, 21a... Silicone tube, 22
...Insulation case, 23 ...Insulation cover, 24 1a ,
24 1b , 24 2 , 24 3 ...resin, 25 ... glass glaze.
Claims (1)
配備してなる筒体内に磁器誘電体を設け、この
磁器誘電体の周囲に絶縁性樹脂層を形成した貫
通型磁器コンデンサにおいて、前記磁器誘電体
の外周面側に形成される絶縁性樹脂層を互いに
面接触する内・外２重層構造のものとすると共
に、磁器誘電体の外周面と接する内層側を熱変
形温度が高く耐熱性及び耐電圧性に優れた樹脂
とし、外層側を熱変形温度が低くヒートサイク
ル性に優れた樹脂としたことを特徴とする高圧
貫通型磁器コンデンサ。 (2) 前記絶縁性樹脂層の内層側をエポキシ樹脂の
粉体塗装により形成した実用新案登録請求の範
囲第１項記載の高圧貫通型磁器コンデンサ。[Scope of Claim for Utility Model Registration] (1) A porcelain dielectric is provided inside a cylinder with a grounding plate interposed between an insulating case and an insulating cover, and an insulating resin layer is formed around the porcelain dielectric. In the feedthrough ceramic capacitor, the insulating resin layer formed on the outer circumferential surface of the ceramic dielectric has a double layer structure of inner and outer layers that are in surface contact with each other, and the inner layer that is in contact with the outer circumferential surface of the ceramic dielectric has a double layer structure. A high-voltage feed-through porcelain capacitor characterized by using a resin that has a high heat distortion temperature and excellent heat resistance and voltage resistance, and the outer layer side is made of a resin that has a low heat distortion temperature and excellent heat cycle properties. (2) The high voltage feed-through ceramic capacitor according to claim 1, wherein the inner layer side of the insulating resin layer is formed by powder coating with epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5860887U JPH0525224Y2 (en) | 1987-04-20 | 1987-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5860887U JPH0525224Y2 (en) | 1987-04-20 | 1987-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63165838U JPS63165838U (en) | 1988-10-28 |
| JPH0525224Y2 true JPH0525224Y2 (en) | 1993-06-25 |
Family
ID=30889335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5860887U Expired - Lifetime JPH0525224Y2 (en) | 1987-04-20 | 1987-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0525224Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9206431A (en) * | 1991-08-27 | 1994-08-02 | Tdk Corp | High voltage capacitor and magntron with filter |
-
1987
- 1987-04-20 JP JP5860887U patent/JPH0525224Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63165838U (en) | 1988-10-28 |
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