JPS6138842B2 - - Google Patents
Info
- Publication number
- JPS6138842B2 JPS6138842B2 JP54106366A JP10636679A JPS6138842B2 JP S6138842 B2 JPS6138842 B2 JP S6138842B2 JP 54106366 A JP54106366 A JP 54106366A JP 10636679 A JP10636679 A JP 10636679A JP S6138842 B2 JPS6138842 B2 JP S6138842B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- electrode
- hole
- dependent resistance
- dielectric material
- 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
Links
- 230000001419 dependent effect Effects 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 18
- 239000003989 dielectric material Substances 0.000 claims description 16
- 230000002159 abnormal effect Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 238000009751 slip forming Methods 0.000 claims 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 239000003985 ceramic capacitor Substances 0.000 description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 229910001252 Pd alloy Inorganic materials 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical group [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【発明の詳細な説明】
本発明は急峻な異常電圧に対してdV／dtの低
減が計れるとともに静電容量による雑音防止機能
を備えた異常電圧吸収用素子およびその製造法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an abnormal voltage absorbing element that can reduce dV/dt against steep abnormal voltages and has a noise prevention function using capacitance, and a method for manufacturing the same.
最近、電圧依存性抵抗器としては種々のものが
実用化されている。近年、酸化亜鉛を主成分とす
る電圧依存性抵抗器が開発され、その優れた非直
線性と、きわめて大きな異常電圧耐量を有すると
ころから、電サージや開閉サージから電子機器や
電気回路を保護ける目的で広く実用に供されつつ
ある。 Recently, various voltage dependent resistors have been put into practical use. In recent years, voltage-dependent resistors whose main component is zinc oxide have been developed, and because of their excellent nonlinearity and extremely large abnormal voltage withstand capacity, they can protect electronic equipment and electrical circuits from electrical surges and switching surges. It is being put into widespread practical use for this purpose.
この酸化亜鉛よりなる電圧依存性抵抗器が広く
利用されるにしたがつてさらに性能の向上が要望
されてきている。すなわち急峻な波形の異常電圧
が印加された場合や、ノイズ領域に関して不満を
残している。 As this voltage dependent resistor made of zinc oxide becomes widely used, there is a demand for further improvement in performance. In other words, there are complaints regarding the case where an abnormal voltage with a steep waveform is applied and the noise area.
このような不満を解消するためにコンデンサを
並設したり、インダクタンスを付加して構成して
いた。 In order to resolve such dissatisfaction, capacitors were arranged in parallel or inductance was added.
本発明は以上のような要望を簡単な構成および
製造法により満そうとするものである。 The present invention attempts to satisfy the above-mentioned demands with a simple structure and manufacturing method.
以下、本発明の実施例を図面第１図〜第１２図
により説明する。 Embodiments of the present invention will be described below with reference to FIGS. 1 to 12.
まず、第１図〜第４図において、１は電圧依存
性抵抗材料で、この電圧依存性抵抗材料１は酸化
亜鉛に微量の酸化ビスマス、酸化コバルト、酸化
マンガン、酸化アンチモン、酸化クロムを添加し
てよく混合した粉末にポリビニルブチラール、ジ
ブチルフタレートおよび有機溶剤を適量加えて混
合しスラリーとし、このスラリーを一定の隙間か
ら導出しながら乾燥してシート状に成形して構成
されている。このシート状の電圧依存性抵抗材料
１の下面には第１図に示すように中央部を円形に
残して白金−パラジウム合金の電極２が印刷によ
り施されている。 First, in Figures 1 to 4, 1 is a voltage-dependent resistance material, and this voltage-dependent resistance material 1 is made by adding trace amounts of bismuth oxide, cobalt oxide, manganese oxide, antimony oxide, and chromium oxide to zinc oxide. It is made by adding appropriate amounts of polyvinyl butyral, dibutyl phthalate, and an organic solvent to a well-mixed powder to form a slurry, which is then dried and formed into a sheet while being drawn out through a certain gap. As shown in FIG. 1, a platinum-palladium alloy electrode 2 is printed on the lower surface of the sheet-shaped voltage-dependent resistance material 1, leaving a circular center portion.
この電極２の下面には第２図に示すようにシー
ト状の誘電体材料３が積層され加圧接合されてい
る。この誘電体材料３はチタン酸バリウムを主成
分とする粉末をポリビニルブチラール、ジブチル
フタレートおよび有機溶剤を適量加えて混合しス
ラリーとし、これを一定の隙間から導出しながら
乾燥してシート状に成形して構成されている。 As shown in FIG. 2, a sheet-like dielectric material 3 is laminated and pressure bonded to the lower surface of the electrode 2. As shown in FIG. This dielectric material 3 is made by mixing powder whose main component is barium titanate with appropriate amounts of polyvinyl butyral, dibutyl phthalate, and an organic solvent to form a slurry, and drying the slurry while leading it out through a certain gap and forming it into a sheet. It is composed of
この積層体の中央に第３図に示すように電極２
の形成されない部分より少し小さな寸法の透孔４
を形成する。これを1100〜1400℃の高温で焼成
し、得られた焼結体に第４図に示すように外部電
極５，６を形成する。すなわち、電圧依存性抵抗
材料１の上面から透孔４内にかけて電圧依存性抵
抗用の外部電極５が、誘電体材料３の下面にコン
デンサ用の外部電極６が形成されている。 An electrode 2 is placed in the center of this stack as shown in Figure 3.
Through-hole 4 with dimensions slightly smaller than the unformed part
form. This is fired at a high temperature of 1100 to 1400°C, and external electrodes 5 and 6 are formed on the obtained sintered body as shown in FIG. That is, an external electrode 5 for a voltage-dependent resistance is formed from the top surface of the voltage-dependent resistance material 1 into the through hole 4, and an external electrode 6 for a capacitor is formed on the bottom surface of the dielectric material 3.
これで電極２、電圧依存性抵抗材料１、外部電
極５により電圧依存性抵抗器が構成され、電極
２、誘電体材料３、外部電極６によつてセラミツ
クコンデンサが構成されることになる。 Now, the electrode 2, the voltage-dependent resistance material 1, and the external electrode 5 constitute a voltage-dependent resistor, and the electrode 2, the dielectric material 3, and the external electrode 6 constitute a ceramic capacitor.
なお、外部電極５を透孔４内に形成したのは、
チツプボンデイングによりプリント基板などに組
込める構成としたり端子ピンを取付けたりするた
めである。また、同じ構成で電圧依存性抵抗材料
１と誘電体材料３を入れかえても同様の効果をも
つものとなる。 Note that the external electrode 5 was formed inside the through hole 4 because
This is to create a structure that can be incorporated into a printed circuit board etc. by chip bonding, and to attach terminal pins. Further, even if the voltage-dependent resistance material 1 and the dielectric material 3 are replaced in the same configuration, the same effect will be obtained.
また、第５図に示すように電圧依存性抵抗材料
１に周縁部の一定幅と、必要に応じて中央部を残
して白金−パラジウム合金を印刷して電極２を形
成し、上述と同様に誘電体材料３を積層し、中央
に透孔４を設け焼成して第６図に示すように電圧
依存性抵抗材料１の上面に外部電極５、誘電体材
料３の下面と積層体の周面に外部電極６を施して
コンデンサを有する異常電圧吸収用素子とするこ
ともできる。この場合も、電圧依存性抵抗材料１
と誘電体材料３を入れかえることもできる。 Further, as shown in FIG. 5, an electrode 2 is formed by printing a platinum-palladium alloy on the voltage-dependent resistance material 1 with a certain width at the periphery and, if necessary, leaving the central part. The dielectric material 3 is laminated, a through hole 4 is formed in the center and fired, and as shown in FIG. It is also possible to form an abnormal voltage absorbing element having a capacitor by applying an external electrode 6 to the element. In this case as well, voltage dependent resistance material 1
It is also possible to replace the dielectric material 3 with the dielectric material 3.
さらに、第７図に示すように下面に中央を除く
全面に電極２ａを形成した電圧依存性抵抗材料１
ａと、下面に周縁部と中央部を除いて電極２ｂを
形成した誘電体材料３と、全く電極の施されない
電圧依存性抵抗材料１ｂを積層接合し、この中央
に第８図に示すように透孔４を設け、焼成した
後、第９図に示すように上層の電圧依存性抵抗材
料１ａの上面と透孔４内に外部電極５を、下層の
電圧依存性抵抗材料１ｂの下面と積層体の周面に
外部電極６を設け、外部電極５と誘電体材料３の
電極２ｂを透孔４内で導通させ、外部電極６と電
圧依存性抵抗材料１ａの電極２ａを導通させて２
個の電圧依存性抵抗器と１個のセラミツクコンデ
ンサの複合部品化された異常電圧吸収用素子とす
ることもできる。 Furthermore, as shown in FIG.
a, a dielectric material 3 with electrodes 2b formed on its lower surface except for the peripheral edge and the center, and a voltage-dependent resistance material 1b with no electrodes formed at all. After forming the through hole 4 and firing, as shown in FIG. 9, an external electrode 5 is laminated on the upper surface of the upper layer voltage dependent resistance material 1a and in the through hole 4, and on the lower surface of the lower layer voltage dependent resistance material 1b. An external electrode 6 is provided on the circumferential surface of the body, the external electrode 5 and the electrode 2b of the dielectric material 3 are electrically connected within the through hole 4, and the external electrode 6 and the electrode 2a of the voltage-dependent resistance material 1a are electrically electrically connected.
The abnormal voltage absorbing element can also be made into a composite component of two voltage-dependent resistors and one ceramic capacitor.
なお、電圧依存性抵抗材料１ａ，１ｂの代りに
誘電体材料を、誘電体材料３の代りに電圧依存性
抵抗材料を用いれば、１個の電圧依存性抵抗器と
２個のセラミツクコンデンサを有する異常電圧吸
収用素子とすることができる。 Note that if a dielectric material is used instead of the voltage-dependent resistance materials 1a and 1b, and a voltage-dependent resistance material is used instead of the dielectric material 3, one voltage-dependent resistor and two ceramic capacitors are provided. It can be used as an element for absorbing abnormal voltage.
また、第１０図に示すように電圧依存性抵抗材
料１に電極２ａの施されない部分を数個所設け、
第１１図に示すように誘電体材料３にもマトリク
ス状に電極２ｂを形成して第１２図に示すように
上述の３層構造に構成して電圧依存性抵抗器も、
セラミツクコンデンサも多数有する構成とするこ
ともできる。 In addition, as shown in FIG. 10, several portions of the voltage-dependent resistance material 1 are provided where the electrodes 2a are not applied.
As shown in FIG. 11, the electrodes 2b are also formed in a matrix on the dielectric material 3, and as shown in FIG.
It is also possible to have a configuration including a large number of ceramic capacitors.
以上のように本発明の異常電圧吸収用素子およ
びその製造法によれば、電圧依存性抵抗器とコン
デンサが併存するものとなつて急峻な異常電圧に
対してdV／dtの低減を計ることができるととも
に、コンデンサによつて雑音防止の機能も得ら
れ、信頼性に富み、構成が簡単で安価となるとと
もに小形化も計れ、しかも生産性に富んだものと
することができ、工業的価値の大なるものであ
る。 As described above, according to the abnormal voltage absorbing element and its manufacturing method of the present invention, a voltage dependent resistor and a capacitor coexist, and it is possible to reduce dV/dt against a steep abnormal voltage. In addition, the capacitor provides a noise prevention function, is highly reliable, has a simple configuration, is inexpensive, can be made compact, and is highly productive, and has high industrial value. It is a big thing.
第１図〜第４図は本発明の異常電圧吸収用素子
の一実施例における製造工程の下面図および断面
図、第５図、第６図は他の実施例の製造工程の下
面図および断面図、第７図〜第９図はさらに他の
実施例の製造工程の断面図、第１０図〜第１２図
はさらに他の実施例における製造工程の下面図お
よび断面図である。
１……電圧依存性抵抗材料、２……電極、３…
…誘電体材料、４……透孔、５，６……外部電
極。
1 to 4 are bottom views and cross-sectional views of the manufacturing process of one embodiment of the abnormal voltage absorbing element of the present invention, and FIGS. 5 and 6 are bottom views and cross-sectional views of the manufacturing process of other embodiments. 7 to 9 are sectional views of the manufacturing process of still another embodiment, and FIGS. 10 to 12 are bottom views and sectional views of the manufacturing process of still another embodiment. 1... Voltage-dependent resistance material, 2... Electrode, 3...
...Dielectric material, 4... Through hole, 5, 6... External electrode.
Claims (1)
間に電極を設け、この積層体の中央に透孔を設
け、この積層体の外表面にそれぞれ外部電極を設
け、この外部電極のいずれか一方を透孔および／
または積層体の周面に連続して形成したことを特
徴とする異常電圧吸収用素子。 ２ 電圧依存性抵抗材料シートまたは誘電体材料
シートの片面に電極を設け、この電極面を接合面
として積層した後中央に透孔を形成し、これを焼
成した後、この積層体の外表面および／または透
孔、外周面に外部電極を形成することを特徴とす
る異常電圧吸収用素子の製造法。[Claims] 1. An electrode is provided between the voltage-dependent resistance material and the dielectric material to be laminated, a through hole is provided in the center of this laminate, external electrodes are provided on the outer surface of this laminate, and this Either one of the external electrodes has a through hole and/or
Alternatively, an abnormal voltage absorbing element characterized in that it is continuously formed on the circumferential surface of a laminate. 2 An electrode is provided on one side of a voltage-dependent resistance material sheet or a dielectric material sheet, and after laminating the layers using this electrode surface as a bonding surface, a through hole is formed in the center, and after firing, the outer surface of this laminate and A method for manufacturing an abnormal voltage absorbing element, characterized in that an external electrode is formed on the outer peripheral surface of the through hole and/or through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10636679A JPS5630704A (en) | 1979-08-20 | 1979-08-20 | Malfunction voltage absorbing element and method of manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10636679A JPS5630704A (en) | 1979-08-20 | 1979-08-20 | Malfunction voltage absorbing element and method of manufacturing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5630704A JPS5630704A (en) | 1981-03-27 |
| JPS6138842B2 true JPS6138842B2 (en) | 1986-09-01 |
Family
ID=14431721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10636679A Granted JPS5630704A (en) | 1979-08-20 | 1979-08-20 | Malfunction voltage absorbing element and method of manufacturing same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5630704A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60166106U (en) * | 1984-04-11 | 1985-11-05 | マルコン電子株式会社 | ceramic barista |
| JPS60169803U (en) * | 1984-04-18 | 1985-11-11 | マルコン電子株式会社 | surge absorber |
| JP2535510B2 (en) * | 1986-07-26 | 1996-09-18 | ティーディーケイ株式会社 | Noise absorber |
| JPS6441125U (en) * | 1987-09-08 | 1989-03-13 | ||
| JPH0724252B2 (en) * | 1988-05-30 | 1995-03-15 | 株式会社村田製作所 | Surge absorption-noise removal composite part |
| JPH02137212A (en) * | 1988-11-17 | 1990-05-25 | Murata Mfg Co Ltd | Composite electronic component |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4980597A (en) * | 1972-12-12 | 1974-08-03 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5721314Y2 (en) * | 1975-03-19 | 1982-05-08 |
-
1979
- 1979-08-20 JP JP10636679A patent/JPS5630704A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4980597A (en) * | 1972-12-12 | 1974-08-03 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5630704A (en) | 1981-03-27 |
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