JPH10270213A - Laminated joint of sintered zinc oxide - Google Patents
Laminated joint of sintered zinc oxideInfo
- Publication number
- JPH10270213A JPH10270213A JP9077029A JP7702997A JPH10270213A JP H10270213 A JPH10270213 A JP H10270213A JP 9077029 A JP9077029 A JP 9077029A JP 7702997 A JP7702997 A JP 7702997A JP H10270213 A JPH10270213 A JP H10270213A
- Authority
- JP
- Japan
- Prior art keywords
- zinc oxide
- oxide sintered
- sintered body
- laminated
- conductive bonding
- 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
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Abstract
(57)【要約】
【課題】 接合強度が高く、かつ、耐電圧特性に優れた
酸化亜鉛焼結体の積層接合物を提供する。
【解決手段】 複数の酸化亜鉛焼結体１の間を第１の導
電接合材２を用いて接合して積層し、その積層接合物の
端部に第２の導電接合材４を用いて端子金属電極５を接
合し、前記積層された酸化亜鉛焼結体１の側面を側面絶
縁材３で被覆したことを特徴とする酸化亜鉛焼結体の積
層接合物。
PROBLEM TO BE SOLVED: To provide a laminated joint of a zinc oxide sintered body having high joining strength and excellent withstand voltage characteristics. SOLUTION: A plurality of zinc oxide sintered bodies 1 are joined and laminated by using a first conductive bonding material 2, and a terminal is formed by using a second conductive bonding material 4 at an end of the laminated bonded product. A laminated joint of a zinc oxide sintered body, wherein a metal electrode 5 is joined, and a side surface of the laminated zinc oxide sintered body 1 is covered with a side surface insulating material 3.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、避雷器、サージア
ブソーバ等に用いられる酸化亜鉛を主成分とした非直線
抵抗特性を有する酸化亜鉛焼結体の積層接合物に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated joint of a zinc oxide sintered body having zinc oxide as a main component and having non-linear resistance characteristics, which is used for a lightning arrester, a surge absorber and the like.
【０００２】[0002]
【従来の技術】一般に、電力系統においては、正常な電
圧に重畳される過電圧を除去し、電力系統や電気機器を
保護するために、避雷器やサージアブソーバなどの過電
圧保護装置が用いられている。また、この過電圧保護装
置には、正常な電圧ではほぼ絶縁特性を示し、過電圧が
印加されると低抵抗値となる特性を有する酸化亜鉛焼結
体が多用されている。2. Description of the Related Art Generally, in an electric power system, an overvoltage protection device such as a lightning arrester or a surge absorber is used to remove an overvoltage superimposed on a normal voltage and protect the electric power system and electric equipment. Further, in this overvoltage protection device, a zinc oxide sintered body having a characteristic of substantially exhibiting an insulating property at a normal voltage and having a low resistance value when an overvoltage is applied is frequently used.
【０００３】この酸化亜鉛焼結体は、酸化亜鉛を主成分
とし、非直線抵抗特性を得るために添加物として少なく
とも一種類以上の金属酸化物を加えて、混合、造粒、成
形し、焼結することにより得られる。また、この酸化亜
鉛焼結体の側面には絶縁層が形成され、両端面にはアル
ミニウムなどの溶射電極が形成されているものが一般的
である。[0003] This zinc oxide sintered body contains zinc oxide as a main component, and at least one kind of metal oxide as an additive to obtain non-linear resistance characteristics, and mixes, granulates, molds, and fires. It is obtained by tying. In general, an insulating layer is formed on the side surface of the zinc oxide sintered body, and sprayed electrodes of aluminum or the like are formed on both end surfaces.
【０００４】[0004]
【発明が解決しようとする課題】ところで、このような
構成を有する酸化亜鉛焼結体は、大形状のものを製造す
ることが困難であるため、避雷器等に使用する場合に
は、通常、酸化亜鉛焼結体を必要枚数積層して用いてい
る。しかし、酸化亜鉛焼結体を多数個積層するには、絶
縁体の支持棒を用いる必要があるため、碍管が大きくな
ったり、コストが高くなってしまっていた。However, since it is difficult to manufacture a large-sized zinc oxide sintered body having such a configuration, when it is used for a lightning arrester or the like, it is usually used as an arrestor. A required number of zinc sintered bodies are laminated and used. However, in order to stack a large number of zinc oxide sintered bodies, it is necessary to use an insulating support rod, so that the insulator tube becomes large and the cost increases.
【０００５】このため、従来から、酸化亜鉛焼結体の一
体化が求められおり、導電接合技術が重要視されてい
る。このような酸化亜鉛焼結体の導電接合技術として
は、特開平７−２１１５２０号に示されているような、
素子−素子間、素子−溶射電極間を金属リングとエポキ
シ系導電性接着剤を用いて接合した積層接合物が報告さ
れている。しかしながら、上記の積層接合物では、素子
−溶射電極間における接合強度が低く、また、接合部の
構造が複雑なため、信頼性が低いという問題点があっ
た。[0005] For this reason, integration of a zinc oxide sintered body has conventionally been required, and conductive bonding technology has been regarded as important. As such a conductive bonding technique of a zinc oxide sintered body, as disclosed in JP-A-7-21520,
Laminated joints in which an element-element and an element-sprayed electrode are joined using a metal ring and an epoxy-based conductive adhesive have been reported. However, the above-described laminated joint has a problem in that the joint strength between the element and the sprayed electrode is low and the structure of the joint is complicated, so that the reliability is low.
【０００６】本発明は、上述したような従来技術の問題
点を解消するために提案されたもので、その目的は、接
合強度が高く、かつ、耐電圧特性に優れた酸化亜鉛焼結
体の積層接合物を提供することにある。The present invention has been proposed in order to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a zinc oxide sintered body having high bonding strength and excellent withstand voltage characteristics. It is to provide a laminated joint.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
め、請求項１に記載の酸化亜鉛焼結体の積層接合物は、
複数の酸化亜鉛焼結体の間を第１の導電接合材を用いて
接合して積層し、その積層接合物の端部に第２の導電接
合材を用いて端子金属電極を接合し、前記積層された酸
化亜鉛焼結体の側面を側面絶縁材で被覆したことを特徴
とするものである。上記のような構成を有する請求項１
に記載の酸化亜鉛焼結体の積層接合物によれば、酸化亜
鉛焼結体間の接合に用いられる第１の導電接合材の強度
に、側面絶縁層の強度が加味されるため高い接合強度が
得られ、また、焼結体間の第１の導電接合材が絶縁物で
覆われ、沿面放電しにくくなるため、高い耐電圧特性が
得られる。In order to achieve the above object, a laminated joint of a zinc oxide sintered body according to claim 1 is provided.
A plurality of zinc oxide sintered bodies are bonded and laminated using a first conductive bonding material, and a terminal metal electrode is bonded to an end of the laminated bonded product using a second conductive bonding material, The side surface of the laminated zinc oxide sintered body is covered with a side surface insulating material. Claim 1 having the above configuration.
According to the laminated joint of the zinc oxide sintered bodies described in the above, the strength of the side surface insulating layer is added to the strength of the first conductive bonding material used for joining between the zinc oxide sintered bodies, so that the high joining strength Is obtained, and the first conductive bonding material between the sintered bodies is covered with an insulator, so that it becomes difficult to perform a creeping discharge, so that a high withstand voltage characteristic is obtained.
【０００８】請求項２に記載の発明は、請求項１に記載
の酸化亜鉛焼結体の積層接合物において、前記酸化亜鉛
焼結体の側面と前記端子金属電極の一部を、前記側面絶
縁材で被覆したことを特徴とするものである。上記のよ
うな構成を有する請求項２に記載の酸化亜鉛焼結体の積
層接合物によれば、酸化亜鉛焼結体の側面だけでなく、
端子金属電極の一部まで側面絶縁材で被覆することによ
り、電極−焼結体間の接合強度も高くなり、また、焼結
体間の第１の導電接合材及び電極と焼結体間の第２の導
電接合材の双方が絶縁物で覆われ、沿面放電しにくくな
るため、さらに高い耐電圧特性が得られる。According to a second aspect of the present invention, in the laminated joint of the zinc oxide sintered body according to the first aspect, the side surface of the zinc oxide sintered body and a part of the terminal metal electrode are insulated from each other by the side surface insulation. It is characterized by being covered with a material. According to the laminated joint of the zinc oxide sintered body according to claim 2 having the above configuration, not only the side surface of the zinc oxide sintered body,
By covering a part of the terminal metal electrode with the side insulating material, the bonding strength between the electrode and the sintered body is increased, and the first conductive bonding material between the sintered bodies and the electrode between the sintered body and the electrode. Both the second conductive bonding material is covered with an insulator, and it is difficult for surface creeping discharge to occur, so that higher withstand voltage characteristics can be obtained.
【０００９】請求項３に記載の発明は、請求項１に記載
の酸化亜鉛焼結体の積層接合物において、前記酸化亜鉛
焼結体の径をＲ１とし、酸化亜鉛焼結体−酸化亜鉛焼結
体間の第１の導電接合材の径をＲ２とした時に、これら
の比Ｒ２／Ｒ１が、０．９＜Ｒ２／Ｒ１≦１の範囲内で
あることを特徴とするものである。上記のような構成を
有する請求項３に記載の酸化亜鉛焼結体の積層接合物に
よれば、Ｒ２／Ｒ１の値を９より大きくすることによ
り、焼結体間の接合面積を適切に設定することができる
ので、高い接合強度を得ることができる。また、Ｒ２／
Ｒ１の値を１以下とすることにより、焼結体間の第１の
導電接合材が焼結体よりはみ出すことを防止し、沿面放
電を防止することができるので、高い耐電圧特性が得ら
れる。According to a third aspect of the present invention, there is provided the laminated joint of the zinc oxide sintered body according to the first aspect, wherein the zinc oxide sintered body has a diameter of R1 and the zinc oxide sintered body-zinc oxide sintered body. When the diameter of the first conductive bonding material between the bodies is R2, the ratio R2 / R1 is in the range of 0.9 <R2 / R1 ≦ 1. According to the laminated joint of the zinc oxide sintered bodies according to claim 3 having the above configuration, by setting the value of R2 / R1 to be larger than 9, the joint area between the sintered bodies is appropriately set. Therefore, high bonding strength can be obtained. Also, R2 /
By setting the value of R1 to 1 or less, the first conductive bonding material between the sintered bodies can be prevented from protruding from the sintered bodies and creeping discharge can be prevented, so that high withstand voltage characteristics can be obtained. .
【００１０】請求項４に記載の発明は、請求項１に記載
の酸化亜鉛焼結体の積層接合物において、端子金属電極
の径をＲ３とし、端子金属電極−酸化亜鉛焼結体間の第
２の導電接合材の径をＲ４とした時に、これらの比Ｒ４
／Ｒ３が、０．９＜Ｒ４／Ｒ３≦１の範囲内であること
を特徴とするものである。上記のような構成を有する請
求項４に記載の酸化亜鉛焼結体の積層接合物によれば、
Ｒ４／Ｒ３の値を９より大きくすることにより、電極−
焼結体間の接合面積を適切に設定することができるの
で、高い接合強度を得ることができる。また、Ｒ４／Ｒ
３の値を１以下とすることにより、電極−焼結体間の第
２の導電接合材が電極端部よりはみ出すことを防止し、
沿面放電を防止することができるので、高い耐電圧特性
が得られる。According to a fourth aspect of the present invention, in the laminated joint of the zinc oxide sintered body according to the first aspect, the diameter of the terminal metal electrode is set to R3, and the diameter between the terminal metal electrode and the zinc oxide sintered body is reduced. When the diameter of the conductive bonding material of No. 2 is R4, the ratio R4
/ R3 is in the range of 0.9 <R4 / R3 ≦ 1. According to the laminated joint of the zinc oxide sintered body according to claim 4 having the above configuration,
By making the value of R4 / R3 larger than 9, the electrode-
Since the bonding area between the sintered bodies can be appropriately set, high bonding strength can be obtained. Also, R4 / R
By setting the value of 3 to 1 or less, it is possible to prevent the second conductive bonding material between the electrode and the sintered body from protruding from the electrode end,
Since creeping discharge can be prevented, high withstand voltage characteristics can be obtained.
【００１１】請求項５に記載の発明は、請求項１または
請求項２に記載の酸化亜鉛焼結体の積層接合物におい
て、前記酸化亜鉛焼結体−酸化亜鉛焼結体間の第１の導
電接合材の側端部が、前記側面絶縁材で充填されている
ことを特徴とするものである。上記のような構成を有す
る請求項５に記載の酸化亜鉛焼結体の積層接合物によれ
ば、焼結体間に塗布される第１の導電接合材端部の空隙
をなくすことにより、電界集中を緩和することができる
ため、高い耐電圧特性が得られる。According to a fifth aspect of the present invention, there is provided the laminated joint of the zinc oxide sintered body according to the first or second aspect, wherein the first zinc oxide sintered body and the zinc oxide sintered body have the first structure. A side end portion of the conductive bonding material is filled with the side surface insulating material. According to the laminate of the zinc oxide sintered body according to claim 5 having the above-described configuration, the electric field is reduced by eliminating the gap at the end of the first conductive bonding material applied between the sintered bodies. Since the concentration can be reduced, high withstand voltage characteristics can be obtained.
【００１２】請求項６に記載の発明は、請求項２に記載
の酸化亜鉛焼結体の積層接合物において、前記端子金属
電極−酸化亜鉛焼結体間の第２の導電接合材の側端部
が、前記側面絶縁材で充填されていることを特徴とする
ものである。上記のような構成を有する請求項６に記載
の酸化亜鉛焼結体の積層接合物によれば、電極−焼結体
間に塗布される第２の導電接合材端部の空隙をなくすこ
とにより、電界集中を緩和することができるため、高い
耐電圧特性が得られる。According to a sixth aspect of the present invention, there is provided the laminated joint of the zinc oxide sintered body according to the second aspect, and a side end of the second conductive joining material between the terminal metal electrode and the zinc oxide sintered body. The portion is filled with the side surface insulating material. According to the laminated joint of the zinc oxide sintered body according to claim 6 having the above-described configuration, by eliminating the void at the end of the second conductive bonding material applied between the electrode and the sintered body. Since the electric field concentration can be reduced, high withstand voltage characteristics can be obtained.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施形態を図面を
参照して具体的に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings.
【００１４】［１．第１実施形態］本実施形態は、酸化
亜鉛焼結体同士、または、酸化亜鉛焼結体と端子金属電
極との導電接合物を種々の条件で製造し、これらの製造
条件が積層接合物の特性に及ぼす効果を検証し、酸化亜
鉛焼結体の積層接合体の最適な構成を検討したものであ
る。[1. First Embodiment] In this embodiment, conductive joints between zinc oxide sintered bodies or between a zinc oxide sintered body and a terminal metal electrode are manufactured under various conditions. The purpose of this study was to verify the effect on the properties and to study the optimal configuration of the laminated joint of the zinc oxide sintered body.
【００１５】（酸化亜鉛焼結体の調製）まず、酸化亜鉛
（ＺｎＯ）に、二酸化マンガン（ＭｎＯ2 ）、二酸化ケ
イ素（ＳｉＯ2 ）、酸化クロム（Ｃｒ2 Ｏ3 ）をそれぞ
れ０．５ｍｏｌ％、酸化ビスマス（Ｂｉ2 Ｏ3 ）、酸化
アンチモン（Ｓｂ2 Ｏ3 ）、酸化ニッケル（ＮｉＯ）を
それぞれ１ｍｏｌ％添加する。次いで、この原料を水と
分散剤の有機バインダー類とともに混合装置に入れて混
合し、この混合物をスプレードライヤーで噴霧造粒す
る。そして、これら造粒粉を金型に入れて加圧し、直径
４０ｍｍ、厚さ３０ｍｍの円板に成形し、この成形体を
１２００℃で焼成して酸化亜鉛焼結体を得た。(Preparation of Zinc Oxide Sintered Body) First, manganese dioxide (MnO 2 ), silicon dioxide (SiO 2 ), and chromium oxide (Cr 2 O 3 ) were added to zinc oxide (ZnO) in an amount of 0.5 mol%. Bismuth oxide (Bi 2 O 3 ), antimony oxide (Sb 2 O 3 ), and nickel oxide (NiO) are added at 1 mol% each. Next, this raw material is put into a mixing device together with water and organic binders of a dispersant and mixed, and this mixture is spray-granulated by a spray drier. Then, these granulated powders were put into a mold and pressed to form a disk having a diameter of 40 mm and a thickness of 30 mm, and the formed body was fired at 1200 ° C. to obtain a zinc oxide sintered body.
【００１６】（酸化亜鉛焼結体の積層接合物の調製…サ
ンプルＢ）上記のようにして得られた酸化亜鉛焼結体１
の上下面を研磨し、その面に銀（Ａｇ）とガラスからな
る第１の導電接合材２を塗布し、加圧しながら約４５０
℃で熱処理することにより、複数個の酸化亜鉛焼結体１
の間を接合した。次いで、接合した複数個の酸化亜鉛焼
結体１の側面全体に、アルミナ系の無機絶縁物またはエ
ポキシ系の有機絶縁物からなる側面絶縁材３を塗布し、
約４００℃の温度で焼き付け、側面絶縁層を形成した。
さらに、積層した酸化亜鉛焼結体１の端部と端子金属電
極５の間に、低温溶融ハンダの第２の導電接合材４を挟
み、約３５０℃で熱処理することにより、図１に示すよ
うな酸化亜鉛焼結体の積層接合物を作製した。(Preparation of Laminated Joint of Zinc Oxide Sintered Sample B) Zinc oxide sintered body 1 obtained as described above
The upper and lower surfaces are polished, and a first conductive bonding material 2 made of silver (Ag) and glass is applied to the surfaces, and about 450
C., heat treatment at a temperature of .degree.
Were joined. Next, a side surface insulating material 3 made of an alumina-based inorganic insulator or an epoxy-based organic insulator is applied to the entire side surfaces of the plurality of joined zinc oxide sintered bodies 1.
Baking was performed at a temperature of about 400 ° C. to form a side insulating layer.
Further, a second conductive bonding material 4 of low-temperature melting solder is sandwiched between the end of the laminated zinc oxide sintered body 1 and the terminal metal electrode 5 and heat-treated at about 350 ° C., as shown in FIG. A laminated joint of a zinc oxide sintered body was produced.
【００１７】（酸化亜鉛焼結体の積層接合物の調製…サ
ンプルＡ）本サンプルは、複数個の酸化亜鉛焼結体１を
接合する前に、各酸化亜鉛焼結体１の側面に前記アルミ
ナ系の無機絶縁物またはエポキシ系の有機絶縁物からな
る側面絶縁材３を塗布し、所定の温度で焼き付け、側面
絶縁層を形成する。その後、酸化亜鉛焼結体間の導電接
合及び酸化亜鉛焼結体と端子金属電極の間の導電接合を
行うことにより、酸化亜鉛焼結体の積層接合物を作製し
たものである。なお、この場合には、図２に示したよう
に、酸化亜鉛焼結体１の側面のみに側面絶縁層が形成さ
れる。(Preparation of Laminated Joint of Zinc Oxide Sintered Sample Sample A) Before joining a plurality of zinc oxide sintered bodies 1, the alumina A side surface insulating material 3 made of a system inorganic insulator or an epoxy system organic insulator is applied and baked at a predetermined temperature to form a side surface insulating layer. After that, conductive bonding between the zinc oxide sintered bodies and conductive bonding between the zinc oxide sintered bodies and the terminal metal electrodes are performed to produce a laminated bonded article of the zinc oxide sintered bodies. In this case, as shown in FIG. 2, the side surface insulating layer is formed only on the side surface of the zinc oxide sintered body 1.
【００１８】（酸化亜鉛焼結体の積層接合物の調製…サ
ンプルＣ）また、酸化亜鉛焼結体間の導電接合、酸化亜
鉛焼結体と端子金属電極の間の導電接合を行った後に、
接合した複数個の酸化亜鉛焼結体の側面全体及び端子金
属電極の一部に、アルミナ系の無機絶縁物またはエポキ
シ系の有機絶縁物からなる側面絶縁材３を塗布し、所定
の温度で焼き付け、側面絶縁層を形成することにより、
図３に示すような絶縁物でモールドした構造の酸化亜鉛
焼結体の積層接合物を作製した。(Preparation of Laminated Joint of Zinc Oxide Sintered Sample C) After conducting conductive bonding between the zinc oxide sintered bodies and conductive bonding between the zinc oxide sintered bodies and the terminal metal electrodes,
A side surface insulating material 3 made of an alumina-based inorganic insulator or an epoxy-based organic insulator is applied to the entire side surfaces of a plurality of joined zinc oxide sintered bodies and a part of the terminal metal electrodes, and baked at a predetermined temperature. , By forming the side insulating layer,
A laminated joint of a zinc oxide sintered body having a structure molded with an insulator as shown in FIG. 3 was produced.
【００１９】（酸化亜鉛焼結体の積層接合物の調製…サ
ンプルＮ）また、酸化亜鉛焼結体間の導電接合、酸化亜
鉛焼結体と端子金属電極の間の導電接合を行った後、接
合した複数個の酸化亜鉛焼結体の側面全体及び端子金属
電極の一部に、アルミナ系の無機絶縁物またはエポキシ
系の有機絶縁物を塗布する際に、酸化亜鉛焼結体間の第
１の導電接合材２の端部にまで前記側面絶縁層を形成す
る絶縁物が浸透するように塗布する。その後、所定の温
度で焼き付け、側面絶縁層を形成することにより、図４
に示すような酸化亜鉛焼結体の積層接合物を作製した。(Preparation of Laminated Joint of Zinc Oxide Sintered Sample: Sample N) Also, after conducting the conductive joining between the zinc oxide sintered bodies and the conductive joining between the zinc oxide sintered bodies and the terminal metal electrodes, When applying an alumina-based inorganic insulator or an epoxy-based organic insulator to the entire side surfaces of a plurality of bonded zinc oxide sintered bodies and a part of the terminal metal electrode, Is applied such that the insulator forming the side surface insulating layer penetrates to the end of the conductive bonding material 2. Thereafter, baking is performed at a predetermined temperature to form a side surface insulating layer.
The laminated joint of the zinc oxide sintered body shown in FIG.
【００２０】（酸化亜鉛焼結体の積層接合物の調製…サ
ンプルＯ）また、酸化亜鉛焼結体間の導電接合、酸化亜
鉛焼結体と端子金属電極の間の導電接合を行った後、接
合した複数個の酸化亜鉛焼結体の側面全体及び端子金属
電極の一部に、アルミナ系の無機絶縁物またはエポキシ
系の有機絶縁物を塗布する際に、酸化亜鉛焼結体と端子
金属電極の間の第２の導電接合材４の端部にまで前記側
面絶縁層を形成する絶縁物が浸透するように塗布する。
その後、所定の温度で焼き付け、側面絶縁層を形成する
ことにより、図５に示すような酸化亜鉛焼結体の積層接
合物を作製した。(Preparation of Laminated Joint of Zinc Oxide Sintered Sample Sample O) Also, after conducting conductive bonding between the zinc oxide sintered bodies and conducting bonding between the zinc oxide sintered bodies and the terminal metal electrodes, When applying an alumina-based inorganic insulator or an epoxy-based organic insulator to the entire side surfaces of a plurality of joined zinc oxide sintered bodies and a part of the terminal metal electrode, the zinc oxide sintered body and the terminal metal electrode Then, the insulating material forming the side surface insulating layer is applied so as to penetrate to the end of the second conductive bonding material 4 between them.
Thereafter, the laminate was baked at a predetermined temperature to form a side surface insulating layer, thereby producing a laminated joint of zinc oxide sintered bodies as shown in FIG.
【００２１】（酸化亜鉛焼結体の積層接合物の調製…サ
ンプルＤ〜Ｈ）また、酸化亜鉛焼結体の積層接合物の製
造条件として、図１に示したように、酸化亜鉛焼結体１
の径をＲ１とし、酸化亜鉛焼結体間の接合に用いられる
第１の導電接合材２の径をＲ２とした時に、これらの比
（Ｒ２／Ｒ１）を変化させて、酸化亜鉛焼結体の積層接
合物を作製した。(Preparation of Laminated Joint of Zinc Oxide Sintered Samples D to H) Further, as shown in FIG. 1
When the diameter of R1 is R1 and the diameter of the first conductive bonding material 2 used for bonding between the zinc oxide sintered bodies is R2, the ratio (R2 / R1) is changed to obtain the zinc oxide sintered body. Was produced.
【００２２】（酸化亜鉛焼結体の積層接合物の調製…サ
ンプルＩ〜Ｍ）また、酸化亜鉛焼結体の積層接合物の製
造条件として、図１に示したように、端子金属電極５の
径をＲ３とし、端子金属電極と酸化亜鉛焼結体間の接合
に用いられる第２の導電接合材４の径をＲ４とした時
に、これらの比（Ｒ４／Ｒ３）を変化させて、酸化亜鉛
焼結体の積層接合物を作製した。(Preparation of Laminated Joint of Zinc Oxide Sintered Samples I to M) Further, as shown in FIG. When the diameter is R3 and the diameter of the second conductive bonding material 4 used for bonding between the terminal metal electrode and the zinc oxide sintered body is R4, the ratio (R4 / R3) is changed to change the ratio to zinc oxide. A laminated joint of the sintered body was produced.
【００２３】（上記各積層接合物の特性）上記の各製造
条件にしたがって各サンプルを２０個ずつ作製し、各々
について、酸化亜鉛焼結体間の接合強度、酸化亜鉛焼結
体と端子金属電極の間の接合強度及び得られた積層接合
物の耐電圧特性を調べ、その結果を表１に示した。な
お、表１に示した接合強度は、各接合物に剪断荷重をか
けたときの酸化亜鉛焼結体面、または端子金属電極面に
対する剪断接合強度の平均値であり、また、耐電圧は、
接合物に４×１０μｓのインパルス電流を約５ｋＶ／ｃ
ｍから約１ｋＶ／ｃｍずつ上げて印加し、冷却を繰り返
す試験を行ったとき、閃絡しなかった電界強度の最大値
の平均値である。(Characteristics of the Laminated Joints) Twenty samples were prepared according to the above manufacturing conditions, and the bonding strength between the zinc oxide sintered bodies, the zinc oxide sintered bodies and the terminal metal electrodes were determined. And the withstand voltage characteristics of the resulting laminated joint were examined. The results are shown in Table 1. The bonding strength shown in Table 1 is an average value of the shear bonding strength with respect to the surface of the zinc oxide sintered body or the terminal metal electrode when a shear load is applied to each bonded product.
A 4 × 10 μs impulse current of about 5 kV / c is applied to the junction.
It is the average of the maximum electric field intensity that did not flash when a test was repeated in which cooling was repeated by applying a voltage of about 1 kV / cm from m.
【００２４】表１において、“絶縁層”が“単体”と
は、図２に示したような積層接合物（サンプルＡ）を示
し、“全体（焼結体のみ）”とは、図１に示したような
積層接合物（サンプルＢ）を示し、“全体（電極ま
で）”とは、図３に示したような積層接合物を（サンプ
ルＣ）を示す。また、“接合材端部”が“空”とは、図
３に示したような積層接合物を示し、“接合体端部（焼
結体間）”、“接合体端部（電極−焼結体間）”が
“充”とは、それぞれ図４（サンプルＮ）、図５（サン
プルＯ）に示したような積層接合物を示す。In Table 1, the term “single” as the “insulating layer” refers to a laminated joint (sample A) as shown in FIG. 2, and the term “whole (only sintered body)” refers to FIG. The laminated joint (Sample B) as shown is shown, and “whole (up to the electrode)” represents the laminated joint as shown in FIG. 3 (Sample C). In addition, the expression “empty” in the “joining material end” indicates a laminated joint as shown in FIG. 3, and includes “joint end (between sintered bodies)” and “joint end (electrode-fired). The term “full” between “cohesion” indicates a laminated joint as shown in FIG. 4 (sample N) and FIG. 5 (sample O), respectively.
【００２５】[0025]
【表１】 表１に示した試験結果から、次のことが明らかとなっ
た。[Table 1] From the test results shown in Table 1, the following became clear.
【００２６】（１）サンプルＡ、Ｂの結果から、酸化亜
鉛焼結体間を導電接合した後、酸化亜鉛焼結体の側面に
側面絶縁層を一体に形成した方が（すなわち、サンプル
Ｂの方が）、焼結体間の接合強度、耐電圧特性が高い積
層接合物が得られることが分かった。すなわち、サンプ
ルＡの焼結体間の接合強度は４．９であるのに対し、サ
ンプルＢでは６．６と高く、また、サンプルＡの耐電圧
は１２．８であるのに対し、サンプルＢでは１５．８と
高くなっている。(1) From the results of Samples A and B, it is better to form a side surface insulating layer integrally on the side surface of the zinc oxide sintered body after conductive bonding between the zinc oxide sintered bodies (that is, Sample B). It was found that a laminated joint having high bonding strength between the sintered bodies and high withstand voltage characteristics was obtained. That is, while the bonding strength between the sintered bodies of Sample A is 4.9, that of Sample B is as high as 6.6, and the withstand voltage of Sample A is 12.8, while that of Sample B is Is higher at 15.8.
【００２７】このように、サンプルＢの方が接合強度が
高い理由は、酸化亜鉛焼結体間の接合に用いられる第１
の導電接合材の強度に、側面絶縁層の強度が加味される
ためであり、また、耐電圧特性が高い理由は、焼結体間
の第１の導電接合材が絶縁物で覆われ、沿面放電しにく
くなるためである。As described above, the reason why the bonding strength of the sample B is higher is that the first B used for the bonding between the zinc oxide sintered bodies.
The reason for this is that the strength of the side insulating layer is added to the strength of the conductive bonding material, and the high withstand voltage characteristic is that the first conductive bonding material between the sintered bodies is covered with an insulator, This is because it becomes difficult to discharge.
【００２８】（２）サンプルＢ、Ｃの結果から、側面絶
縁層は電極上まで一体に形成した方が（すなわち、サン
プルＣの方が）、電極−焼結体間の接合強度、耐電圧特
性が高い積層接合物が得られることが分かった。すなわ
ち、サンプルＢの電極−焼結体間の接合強度は５．１で
あるのに対し、サンプルＣでは６．９と高く、また、サ
ンプルＢの耐電圧は１５．８であるのに対し、サンプル
Ｃでは１６．９と高くなっている。(2) From the results of Samples B and C, it is better to form the side surface insulating layer integrally on the electrode (that is, in Sample C), to obtain the bonding strength between the electrode and the sintered body and the withstand voltage characteristic. It was found that a laminated joint having a high value was obtained. That is, while the bonding strength between the electrode and the sintered body of sample B is 5.1, that of sample C is as high as 6.9, and the withstand voltage of sample B is 15.8, In sample C, it is as high as 16.9.
【００２９】このように、サンプルＣの方が電極−焼結
体間の接合強度が高い理由は、電極と焼結体間の接合に
用いられる第２の導電接合材の強度に、側面絶縁層の強
度が加味されるためであり、また、耐電圧特性が高い理
由は、焼結体間の第１の導電接合材及び電極と焼結体間
の第２の導電接合材が絶縁物で覆われ、沿面放電しにく
くなるためである。As described above, the reason why the bonding strength between the electrode and the sintered body of the sample C is higher is that the strength of the second conductive bonding material used for bonding between the electrode and the sintered body depends on the side insulating layer. The reason for the high withstand voltage characteristic is that the first conductive bonding material between the sintered bodies and the second conductive bonding material between the electrodes and the sintered body are covered with an insulator. This is because creeping discharge becomes difficult.
【００３０】（３）サンプルＣ、Ｄ、Ｅ、Ｆ、Ｇ、Ｈの
結果から、酸化亜鉛焼結体の径Ｒ１と焼結体間の接合に
用いられる第１の導電接合材の径Ｒ２の比（Ｒ２／Ｒ
１）が０．９より大きく、１以下の時に、焼結体間の接
合強度及び耐電圧特性が高い積層接合物が得られること
が分かった。(3) From the results of Samples C, D, E, F, G, and H, the diameter R1 of the zinc oxide sintered body and the diameter R2 of the first conductive bonding material used for bonding between the sintered bodies were determined. Ratio (R2 / R
It was found that when 1) was greater than 0.9 and 1 or less, a laminated joint having high joining strength and withstand voltage characteristics between sintered bodies was obtained.
【００３１】すなわち、Ｒ２／Ｒ１が０．９より小さい
場合（サンプルＤ，Ｅ）、焼結体間の接合強度はそれぞ
れ５．９、６．０であるのに対し、Ｒ２／Ｒ１が０．９
より大きい場合（サンプルＣ，Ｆ，Ｇ，Ｈ）、焼結体間
の接合強度はそれぞれ６．６、６．５、６．８、６．８
と高くなる。一方、Ｒ２／Ｒ１が１．００より大きい場
合（サンプルＨ）、耐電圧特性が１３．５と低くなる。That is, when R2 / R1 is smaller than 0.9 (samples D and E), the bonding strength between the sintered bodies is 5.9 and 6.0, respectively, whereas R2 / R1 is not greater than 0.9. 9
When larger (samples C, F, G, H), the bonding strength between the sintered bodies is 6.6, 6.5, 6.8, 6.8, respectively.
And higher. On the other hand, when R2 / R1 is larger than 1.00 (sample H), the withstand voltage characteristic is as low as 13.5.
【００３２】このように、Ｒ２／Ｒ１の値が０．９以下
では、焼結体間の接合面積が小さいため接合強度が低下
し、Ｒ２／Ｒ１の値が１より大きいと、前記第１の導電
接合材が焼結体よりはみ出て沿面放電しやすくなるた
め、耐電圧特性が低下すると考えられる。As described above, when the value of R2 / R1 is 0.9 or less, the bonding strength between the sintered bodies is small, so that the bonding strength is reduced. It is considered that the withstand voltage characteristics are lowered because the conductive bonding material protrudes from the sintered body and is easily discharged on the surface.
【００３３】（４）サンプルＣ、Ｉ、Ｊ、Ｋ、Ｌ、Ｍの
結果から、端子金属電極の径Ｒ３と電極−焼結体間の接
合に用いられる第２の導電接合材の径Ｒ４の比（Ｒ３／
Ｒ４）が０．９より大きく、１以下の時に、電極−焼結
体間の接合強度及び耐電圧特性が高い積層接合物が得ら
れることが分かった。(4) From the results of Samples C, I, J, K, L, and M, the diameter R3 of the terminal metal electrode and the diameter R4 of the second conductive bonding material used for bonding between the electrode and the sintered body were determined. Ratio (R3 /
It was found that when R4) was greater than 0.9 and 1 or less, a laminated joint having high joining strength and withstand voltage characteristics between the electrode and the sintered body was obtained.
【００３４】すなわち、Ｒ４／Ｒ３が０．９より小さい
場合（サンプルＩ，Ｊ）、電極−焼結体間の接合強度は
それぞれ６．２、６．３であるのに対し、Ｒ４／Ｒ３が
０．９より大きい場合（サンプルＣ，Ｋ，Ｌ，Ｍ）、電
極−焼結体間の接合強度はそれぞれ６．９、６．８、
７．０、７．０と高くなる。一方、Ｒ４／Ｒ３が１．０
０より大きい場合（サンプルＭ）、耐電圧特性が１４．
１と低くなる。That is, when R4 / R3 is smaller than 0.9 (samples I and J), the bonding strength between the electrode and the sintered body is 6.2 and 6.3, respectively, while R4 / R3 is smaller than 0.9. When it is larger than 0.9 (samples C, K, L, M), the bonding strength between the electrode and the sintered body is 6.9, 6.8, respectively.
It becomes high as 7.0 and 7.0. On the other hand, R4 / R3 is 1.0
When the value is larger than 0 (sample M), the withstand voltage characteristic is 14.
1 and lower.
【００３５】このように、Ｒ４／Ｒ３の値が０．９以下
では、電極−焼結体間の接合面積が小さいため接合強度
が低下し、Ｒ４／Ｒ３の値が１より大きいと、前記第２
の導電接合材が端子金属電極よりはみ出て沿面放電しや
すくなるため、耐電圧特性が低下すると考えられる。As described above, if the value of R4 / R3 is 0.9 or less, the bonding area between the electrode and the sintered body is small, so that the bonding strength is reduced. 2
It is considered that the conductive bonding material protrudes from the terminal metal electrode to easily cause creeping discharge, so that the withstand voltage characteristics are reduced.
【００３６】（５）サンプルＣ、Ｎの結果から、焼結体
間の接合に用いられる第１の導電接合材端部に空隙がな
く、側面絶縁層を構成する絶縁材が充填されていた方が
（すなわち、サンプルＮの方が）、耐電圧特性の高い積
層接合物が得られることが分かった。すなわち、サンプ
ルＣの耐電圧は１６．９であるのに対し、サンプルＮの
耐電圧は１７．８と高くなっている。その理由は、焼結
体間に塗布される第１の導電接合材端部の空隙をなくす
ことにより、電界集中が緩和されるためと考えられる。(5) From the results of Samples C and N, it was found that there was no void at the end of the first conductive bonding material used for bonding between the sintered bodies and the insulating material constituting the side surface insulating layer was filled. However, it was found that a laminated joint having high withstand voltage characteristics was obtained. That is, the withstand voltage of sample C is 16.9, while the withstand voltage of sample N is as high as 17.8. The reason is considered to be that the electric field concentration is eased by eliminating the void at the end of the first conductive bonding material applied between the sintered bodies.
【００３７】（６）サンプルＣ、Ｏの結果から、電極−
焼結体間の接合に用いられる第２の導電接合材端部に空
隙がなく、側面絶縁層を構成する絶縁材が充填されてい
た方が（すなわち、サンプルＯの方が）、耐電圧特性の
高い積層接合物が得られることが分かった。すなわち、
サンプルＣの耐電圧は１６．９であるのに対し、サンプ
ルＯの耐電圧は１７．９と高くなっている。その理由
は、電極−焼結体間に塗布される第２の導電接合材端部
の空隙をなくすことにより、電界集中が緩和されるため
と考えられる。(6) From the results of samples C and O,
The end portion of the second conductive bonding material used for bonding between the sintered bodies has no void and is filled with the insulating material constituting the side surface insulating layer (that is, the sample O) has a withstand voltage characteristic. It was found that a laminated joint having a high ratio was obtained. That is,
The withstand voltage of sample C is 16.9, while the withstand voltage of sample O is as high as 17.9. The reason is considered to be that the electric field concentration is reduced by eliminating the gap at the end of the second conductive bonding material applied between the electrode and the sintered body.
【００３８】（結論）以上の結果から、酸化亜鉛焼結体
の積層接合物としては、積層された酸化亜鉛焼結体の側
面と端子金属電極の一部を側面絶縁材で被覆し、また、
酸化亜鉛焼結体の径をＲ１とし、酸化亜鉛焼結体−酸化
亜鉛焼結体間の第１の導電接合材の径をＲ２とした時
に、これらの比Ｒ２／Ｒ１が、０．９＜Ｒ２／Ｒ１≦１
の範囲内であり、さらに、端子金属電極の径をＲ３と
し、端子金属電極−酸化亜鉛焼結体間の第２の導電接合
材の径をＲ４とした時に、これらの比Ｒ４／Ｒ３が、
０．９＜Ｒ４／Ｒ３≦１の範囲内であることが望まし
い。さらに、酸化亜鉛焼結体−酸化亜鉛焼結体間の第１
の導電接合材の側端部、あるいは端子金属電極−酸化亜
鉛焼結体間の第２の導電接合材の側端部まで側面絶縁材
を充填することが望ましい。(Conclusion) From the above results, as the laminated joint of the zinc oxide sintered body, the side surface of the laminated zinc oxide sintered body and a part of the terminal metal electrode are covered with a side surface insulating material.
When the diameter of the zinc oxide sintered body is R1, and the diameter of the first conductive bonding material between the zinc oxide sintered body and the zinc oxide sintered body is R2, the ratio R2 / R1 is 0.9 < R2 / R1 ≦ 1
In addition, when the diameter of the terminal metal electrode is R3 and the diameter of the second conductive bonding material between the terminal metal electrode and the zinc oxide sintered body is R4, the ratio R4 / R3 is
It is desirable that the value be in the range of 0.9 <R4 / R3 ≦ 1. Furthermore, the first between the zinc oxide sintered body and the zinc oxide sintered body
It is desirable to fill the side surface insulating material up to the side end of the conductive bonding material or the side end of the second conductive bonding material between the terminal metal electrode and the zinc oxide sintered body.
【００３９】［２．第２実施形態］本実施形態は、第１
実施形態に示した酸化亜鉛焼結体の積層接合物を用い
て、避雷器を構成したものである。すなわち、従来の避
雷器は、図６に示したように、複数個の非直線抵抗体２
０とその端部に設けられた端子金属電極２１を、支持ロ
ッド２２で支持・固定し、これらを碍管２３内に収納す
ることにより構成されていた。[2. Second Embodiment] In the present embodiment, the first
A lightning arrester is configured using the laminated joint of the zinc oxide sintered bodies shown in the embodiment. That is, as shown in FIG. 6, the conventional lightning arrester includes a plurality of non-linear resistors 2.
0 and a terminal metal electrode 21 provided at the end thereof are supported and fixed by a support rod 22, and are housed in a porcelain tube 23.
【００４０】これに対し、本実施形態の避雷器は、図７
に示したように、第１実施形態に示した接合強度の高い
非直線抵抗体の積層接合物１０を碍管１１内に配設する
ことにより構成することができる。On the other hand, the lightning arrester of this embodiment is the same as that of FIG.
As shown in (1), the laminated joint 10 of the non-linear resistor having the high joining strength shown in the first embodiment can be arranged in the insulator tube 11.
【００４１】従って、本実施形態の避雷器によれば、従
来必要であった支持ロッドが不要となるため、部品点数
及び組立て工数が大幅に削減できる。また、コンパクト
な構成となるため、小型でコストの安い避雷器を提供す
ることができる。Therefore, according to the lightning arrester of this embodiment, the support rod, which has been required conventionally, is not required, so that the number of parts and the number of assembling steps can be greatly reduced. In addition, since the lightning arrester has a compact configuration, it is possible to provide a small and inexpensive lightning arrester.
【００４２】［３．第３実施形態］本実施形態は、第１
実施形態に示した酸化亜鉛焼結体の積層接合物を用いて
構成した避雷器を内蔵した油絶縁変圧器に関するもので
ある。すなわち、従来の避雷器内蔵油絶縁変圧器の避雷
器部分は、図８に示したように、複数個の非直線抵抗体
２０とその端部に設けられた端子金属電極２１を、バネ
２４で固定し、これらを碍管２３内に収納することによ
り構成されていた。[3. Third Embodiment] This embodiment is a first embodiment.
The present invention relates to an oil-insulated transformer having a built-in lightning arrester configured using a laminated joint of zinc oxide sintered bodies shown in the embodiments. That is, in the lightning arrester part of the conventional oil-insulated transformer with a lightning arrestor, as shown in FIG. These are housed in the insulator tube 23.
【００４３】これに対し、本実施形態の避雷器内蔵油絶
縁変圧器の避雷器部分は、図９に示したように、第１実
施形態に示した接合強度の高い非直線抵抗体の積層接合
物１０を碍管１１内に配設することにより構成すること
ができる。On the other hand, as shown in FIG. 9, the lightning arrester portion of the oil-insulated transformer with a built-in lightning arrester of the present embodiment is composed of the non-linear resistor laminated joint 10 of the first embodiment having a high joining strength. Can be configured by arranging them in the insulator tube 11.
【００４４】従って、本実施形態の避雷器内蔵油絶縁変
圧器によれば、従来必要であったバネ２４が不要となる
ため、部品点数及び組立て工数が大幅に削減できる。ま
た、コンパクトな構成となるため、小型でコストの安い
避雷器内蔵油絶縁変圧器を提供することができる。Therefore, according to the oil-insulated transformer with a built-in lightning arrester of the present embodiment, the spring 24, which has been conventionally required, is not required, so that the number of parts and the number of assembling steps can be greatly reduced. In addition, since it has a compact configuration, it is possible to provide a small and inexpensive oil-insulated transformer with a built-in lightning arrester.
【００４５】［４．第４実施形態］本実施形態は、第１
実施形態に示した酸化亜鉛焼結体の積層接合物を用いて
構成した避雷器を内蔵したガス絶縁開閉装置に関するも
のである。すなわち、従来の避雷器内蔵ガス絶縁開閉装
置の避雷器部分は、図１０に示したように、複数個の非
直線抵抗体２０とその端部に設けられた端子金属電極２
１を、バネ２４で固定し、これらを碍管２３内に収納す
ることにより構成されていた。[4. Fourth Embodiment] In the present embodiment, the first
The present invention relates to a gas-insulated switchgear having a built-in lightning arrester constituted by using a laminated joint of zinc oxide sintered bodies shown in the embodiment. That is, as shown in FIG. 10, the lightning arrester portion of the conventional gas-insulated switchgear with built-in lightning arrester includes a plurality of non-linear resistors 20 and terminal metal electrodes 2 provided at the ends thereof.
1 was fixed by a spring 24 and housed in a porcelain tube 23.
【００４６】これに対し、本実施形態の避雷器内蔵ガス
絶縁開閉装置の避雷器部分は、図１１に示したように、
第１実施形態に示した接合強度の高い非直線抵抗体の積
層接合物１０を碍管１１内に配設することにより構成す
ることができる。On the other hand, the lightning arrestor portion of the gas insulated switchgear with built-in lightning arrester of the present embodiment is, as shown in FIG.
It can be configured by disposing the laminated joint 10 of the non-linear resistor having the high joint strength shown in the first embodiment in the insulator tube 11.
【００４７】従って、本実施形態の避雷器内蔵ガス絶縁
開閉装置によれば、従来必要であったバネ２４が不要と
なるため、部品点数及び組立て工数が大幅に削減でき
る。また、コンパクトな構成となるため、小型でコスト
の安い避雷器内蔵ガス絶縁開閉装置を提供することがで
きる。Therefore, according to the gas-insulated switchgear with a built-in lightning arrester of the present embodiment, the spring 24, which is conventionally required, is not required, so that the number of parts and the number of assembling steps can be greatly reduced. In addition, since the configuration is compact, it is possible to provide a small and inexpensive gas-insulated switchgear with a built-in arrester.
【００４８】[0048]
【発明の効果】以上述べたように、本発明によれば、接
合強度が高く、かつ、耐電圧特性に優れた酸化亜鉛焼結
体の積層接合物を提供することができる。As described above, according to the present invention, it is possible to provide a laminated joint of a zinc oxide sintered body having high joining strength and excellent withstand voltage characteristics.
【図１】本発明に係る酸化亜鉛焼結体の積層接合物（サ
ンプルＢ）の断面図。FIG. 1 is a sectional view of a laminate (sample B) of a zinc oxide sintered body according to the present invention.
【図２】本発明に係る酸化亜鉛焼結体の積層接合物（サ
ンプルＡ）の断面図。FIG. 2 is a cross-sectional view of a laminate (sample A) of a zinc oxide sintered body according to the present invention.
【図３】本発明に係る酸化亜鉛焼結体の積層接合物（サ
ンプルＣ）の断面図。FIG. 3 is a cross-sectional view of a laminated joint (sample C) of a zinc oxide sintered body according to the present invention.
【図４】本発明に係る酸化亜鉛焼結体の積層接合物（サ
ンプルＮ）の断面図。FIG. 4 is a sectional view of a laminated joint (sample N) of a zinc oxide sintered body according to the present invention.
【図５】本発明に係る酸化亜鉛焼結体の積層接合物（サ
ンプルＯ）の断面図。FIG. 5 is a sectional view of a laminated joint (sample O) of a zinc oxide sintered body according to the present invention.
【図６】従来から用いられている避雷器の概略図。FIG. 6 is a schematic diagram of a conventional lightning arrester.
【図７】本発明に係る避雷器の概略図。FIG. 7 is a schematic diagram of a lightning arrester according to the present invention.
【図８】従来から用いられている避雷器を内蔵した油絶
縁変圧器の概略図。FIG. 8 is a schematic view of a conventionally used oil-insulated transformer having a built-in lightning arrester.
【図９】本発明に係る避雷器を内蔵した油絶縁変圧器の
概略図。FIG. 9 is a schematic diagram of an oil-insulated transformer incorporating a lightning arrester according to the present invention.
【図１０】従来から用いられている避雷器を内蔵したガ
ス絶縁開閉装置の概略図。FIG. 10 is a schematic diagram of a gas-insulated switchgear incorporating a conventional lightning arrester.
【図１１】本発明に係る避雷器を内蔵したガス絶縁開閉
装置の概略図。FIG. 11 is a schematic diagram of a gas-insulated switchgear incorporating a lightning arrester according to the present invention.
１…酸化亜鉛焼結体 ２…第１の導電接合材 ３…側面絶縁材 ４…第２の導電接合材 ５…端子金属電極 １０…酸化亜鉛焼結体の積層接合物 １１…碍管 ２０…非直線抵抗体 ２１…端子金属電極 ２２…支持ロッド ２３…碍管 ２４…バネ DESCRIPTION OF SYMBOLS 1 ... Sintered zinc oxide 2 ... First conductive joining material 3 ... Side insulating material 4 ... Second conductive joining material 5 ... Terminal metal electrode 10 ... Laminated joint of sintered zinc oxide 11 ... Insulator tube 20 ... Non-conductive Linear resistor 21 ... Terminal metal electrode 22 ... Support rod 23 ... Insulator tube 24 ... Spring
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 洋典 神奈川県川崎市川崎区浮島町２番１号 株 式会社東芝浜川崎工場内 (72)発明者 木本 淳志 神奈川県川崎市川崎区浮島町２番１号 株 式会社東芝浜川崎工場内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hironori Suzuki 2-1 Ukishima-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside the Toshiba Hamakawasaki Plant (72) Inventor Atsushi Kimoto 2, Ukishima-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa No. 1 Inside the Toshiba Hamakawasaki Plant
Claims (6)
接合材を用いて接合して積層し、その積層接合物の端部
に第２の導電接合材を用いて端子金属電極を接合し、前
記積層された酸化亜鉛焼結体の側面を側面絶縁材で被覆
したことを特徴とする酸化亜鉛焼結体の積層接合物。1. A method of bonding a plurality of zinc oxide sintered bodies by using a first conductive bonding material and stacking them, and using a second conductive bonding material at an end of the stacked bonded body to form a terminal metal electrode. Wherein the side surfaces of the laminated zinc oxide sintered body are covered with a side surface insulating material.
属電極の一部を、前記側面絶縁材で被覆したことを特徴
とする請求項１記載の酸化亜鉛焼結体の積層接合物。2. A laminated joint of a zinc oxide sintered body according to claim 1, wherein a side surface of said zinc oxide sintered body and a part of said terminal metal electrode are covered with said side surface insulating material.
化亜鉛焼結体−酸化亜鉛焼結体間の第１の導電接合材の
径をＲ２とした時に、これらの比Ｒ２／Ｒ１が、０．９
＜Ｒ２／Ｒ１≦１の範囲内であることを特徴とする請求
項１記載の酸化亜鉛焼結体の積層接合物。3. When the diameter of the zinc oxide sintered body is R1, and the diameter of the first conductive bonding material between the zinc oxide sintered body and the zinc oxide sintered body is R2, the ratio R2 / R1 Is 0.9
2. The laminated joint of the zinc oxide sintered body according to claim 1, wherein the ratio is within a range of <R2 / R1 ≦ 1. 3.
電極−酸化亜鉛焼結体間の第２の導電接合材の径をＲ４
とした時に、これらの比Ｒ４／Ｒ３が、０．９＜Ｒ４／
Ｒ３≦１の範囲内であることを特徴とする請求項１記載
の酸化亜鉛焼結体の積層接合物。4. The diameter of the terminal metal electrode is R3, and the diameter of the second conductive bonding material between the terminal metal electrode and the zinc oxide sintered body is R4.
When these ratios R4 / R3 are 0.9 <R4 /
The laminated joint of a zinc oxide sintered body according to claim 1, wherein R3 ≦ 1.
の第１の導電接合材の側端部が、前記側面絶縁材で充填
されていることを特徴とする請求項１または請求項２に
記載の酸化亜鉛焼結体の積層接合物。5. The method according to claim 1, wherein a side end of the first conductive bonding material between the zinc oxide sintered body and the zinc oxide sintered body is filled with the side surface insulating material. Item 3. A laminated joint of the zinc oxide sintered body according to Item 2.
第２の導電接合材の側端部が、前記側面絶縁材で充填さ
れていることを特徴とする請求項２に記載の酸化亜鉛焼
結体の積層接合物。6. The oxidation according to claim 2, wherein a side end of a second conductive bonding material between the terminal metal electrode and the zinc oxide sintered body is filled with the side surface insulating material. Laminated joint of sintered zinc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9077029A JPH10270213A (en) | 1997-03-28 | 1997-03-28 | Laminated joint of sintered zinc oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9077029A JPH10270213A (en) | 1997-03-28 | 1997-03-28 | Laminated joint of sintered zinc oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10270213A true JPH10270213A (en) | 1998-10-09 |
Family
ID=13622333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9077029A Pending JPH10270213A (en) | 1997-03-28 | 1997-03-28 | Laminated joint of sintered zinc oxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10270213A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881387A (en) * | 2011-07-14 | 2013-01-16 | 乾坤科技股份有限公司 | Micro-resistor product attached by laminating adhesive and manufacturing method thereof |
-
1997
- 1997-03-28 JP JP9077029A patent/JPH10270213A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881387A (en) * | 2011-07-14 | 2013-01-16 | 乾坤科技股份有限公司 | Micro-resistor product attached by laminating adhesive and manufacturing method thereof |
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