JP4351988B2 - Switchgear and support insulator - Google Patents

Switchgear and support insulator Download PDF

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JP4351988B2
JP4351988B2 JP2004352617A JP2004352617A JP4351988B2 JP 4351988 B2 JP4351988 B2 JP 4351988B2 JP 2004352617 A JP2004352617 A JP 2004352617A JP 2004352617 A JP2004352617 A JP 2004352617A JP 4351988 B2 JP4351988 B2 JP 4351988B2
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hole
plate
fastening
support
mounting
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JP2006164678A (en
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圭二 後藤
義博 大川
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to TW094106546A priority patent/TWI294128B/en
Priority to KR1020050030019A priority patent/KR100611597B1/en
Priority to CNB2005100650640A priority patent/CN100377265C/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4027—Coupling between buses using bus bridges
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/382—Information transfer, e.g. on bus using universal interface adapter
    • G06F13/387—Information transfer, e.g. on bus using universal interface adapter for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/0042—Universal serial bus [USB]

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Insulators (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Patch Boards (AREA)

Description

この発明は、例えば受配電設備等に適用される電力用の開閉装置、及び、開閉装置等の電気機器に使用される支持碍子に関するものである。   The present invention relates to a power switchgear applied to, for example, a power distribution facility, and a support insulator used in electrical equipment such as a switchgear.

開閉装置は、例えば真空バルブを用いた高電圧の遮断器の場合、固定電極と可動電極とを有する真空バルブの両側から導出した導体が、台車等に絶縁支持されて構成されている。この絶縁支持部に用いられる支持碍子は、通常、絶縁樹脂材料や磁器材料が使用されるので、支持対象物を取り付けるためのねじ部の締め付け強度を確保するために、例えば、ねじ穴加工された金属製の埋金を絶縁樹脂材料と一体に注形して成形している。このような構造では、使用時の熱収縮等により注形絶縁樹脂と埋金との界面が剥離しギャップが生じる可能性がある。ギャップが生じるとコロナが発生し、部分放電から絶縁破壊につながり、絶縁性能を維持できなくなるという問題点があった。これに対し、埋金を使用しない構造の導体支持碍子が開示されている。図９は、その導体支持碍子を示す部分図である。図のように、導体支持碍子５１を相手側の支持部材へ取り付ける固定部は、絶縁樹脂材料で一体に形成されたフランジ５１ａにＵ字状のスリット部５１ｂが形成されている。このスリット部５１ｂに締め付け用ボルトを挿入して支持部材と締結し固定するものである（特許文献１参照）。   In the case of a high-voltage circuit breaker using, for example, a vacuum valve, the switchgear is configured such that a conductor led out from both sides of a vacuum valve having a fixed electrode and a movable electrode is insulated and supported by a carriage or the like. Since the insulator used for the insulating support portion is usually made of an insulating resin material or a porcelain material, for example, a screw hole is processed in order to ensure the tightening strength of the screw portion for attaching the support object. Metal buried metal is cast and molded integrally with the insulating resin material. In such a structure, there is a possibility that the interface between the cast insulating resin and the buried metal peels off due to heat shrinkage during use, and a gap is generated. When the gap is generated, corona is generated, which leads to breakdown from partial discharge to insulation breakdown, and there is a problem that insulation performance cannot be maintained. On the other hand, a conductor support insulator having a structure that does not use buried metal is disclosed. FIG. 9 is a partial view showing the conductor support insulator. As shown in the figure, the fixing portion for attaching the conductor support insulator 51 to the counterpart support member is formed with a U-shaped slit portion 51b in a flange 51a formed integrally with an insulating resin material. A fastening bolt is inserted into the slit portion 51b and fastened to the support member to be fixed (see Patent Document 1).

特開２０００−３２２９６１号公報（第２頁、図１及び図２）Japanese Unexamined Patent Publication No. 2000-322961 (2nd page, FIG. 1 and FIG. 2)

開閉装置は上記のように構成されているので、絶縁支持部に、特許文献１に示すような埋金を使用しない支持碍子を使用すれば、注形絶縁樹脂と埋金との界面の剥離の問題は解決される。しかし、この構造では締結ボルトは外部に露出しているので、その部分に電界が集中するため、相応の絶縁距離を確保する必要がある。すなわち、埋金を使用する場合に比べて支持碍子の長さが長くなるという問題点があった。このため、コンパクト化を強く要求される配電用等の開閉装置に使用するには適さなかった。   Since the switchgear is configured as described above, if a support insulator that does not use buried metal as shown in Patent Document 1 is used for the insulating support part, the interface between the cast insulating resin and the buried metal is peeled off. The problem is solved. However, in this structure, since the fastening bolt is exposed to the outside, the electric field concentrates on that portion, so it is necessary to ensure a corresponding insulation distance. That is, there is a problem that the length of the supporting insulator becomes longer than when using buried metal. For this reason, it was not suitable for use in a switchgear for power distribution or the like that is strongly required to be compact.

この発明は、上記のような問題点を解消するためになされたもので、コンパクトでかつ低コストを実現できる支持碍子を備えた開閉装置、及び支持碍子を提供することを目的とする。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a switchgear having a support lever that is compact and can be manufactured at low cost, and a support lever.

この発明に係わる開閉装置は、開閉器本体の開閉を行う操作機構を収容する台車と、開閉器本体の両端に接続された導体と、導体のそれぞれを台車に絶縁支持する絶縁支持部とを備えた開閉装置において、絶縁支持部は、両端に形成した取付面の近傍にそれぞれ設けられた貫通穴と取付面から貫通穴へ通じる取付穴とを有する支持碍子と、貫通穴の内部に配置される締付板と、締付板を締め付ける締結部材とを備え、台車と導体の間に挿入した支持碍子の両側から、取付穴に挿通した締結部材により締付板が締め付けられて、導体が台車に支持固定されるようにしたものである。   The switchgear according to the present invention includes a carriage that houses an operation mechanism that opens and closes the switch body, conductors that are connected to both ends of the switch body, and an insulating support that insulates and supports each of the conductors on the carriage. In the switchgear, the insulating support portion is disposed inside the through hole, and a support insulator having a through hole provided in the vicinity of the mounting surface formed at both ends and a mounting hole that leads from the mounting surface to the through hole. The fastening plate and the fastening member for fastening the fastening plate are provided. The fastening plate is fastened by the fastening member inserted into the mounting hole from both sides of the support insulator inserted between the carriage and the conductor, and the conductor is attached to the carriage. It is designed to be supported and fixed.

また、この発明に係わる支持碍子は、少なくとも一方が充電部である２つの支持部材を所定の間隔を保ち絶縁支持する支持碍子であって、両端に支持部材を取り付ける取付面を有し、それぞれの取付面の近傍に締付板を内設するための貫通穴が設けられ、両取付面側から締付板を締め付けるための取付穴が、取付面から貫通穴へ貫通して形成されているものである。   Further, the support insulator according to the present invention is a support insulator that insulates and supports two support members, at least one of which is a charging part, having a mounting surface to which the support members are attached at both ends. A through hole is provided in the vicinity of the mounting surface to install the clamping plate, and a mounting hole for tightening the clamping plate from both mounting surfaces is formed through the mounting surface to the through hole. It is.

この発明の開閉装置によれば、開閉器本体の両端に接続された導体を台車に絶縁支持する絶縁支持部を、両端の取付面の近傍に設けられた貫通穴と取付面に形成された取付穴とを有する支持碍子と、貫通穴の内部に配置される締付板と、締結部材とを備えて構成し、台車と導体の間に挿入した支持碍子の両側から締結部材を取付穴に挿通して締付板を締め付けることにより台車に導体を支持固定するようにしたので、開閉装置の導体部を固定する支持碍子は、取付部に高い注形技術を要する埋金を必要としないため安価に製造でき、また、支持碍子側には金属露出部がないので電界が集中しないためコンパクにできる。従って、開閉装置全体のコスト低減と、コンパクト化を図ることができる。   According to the switchgear of the present invention, the insulating support portions for insulatingly supporting the conductors connected to both ends of the switch body to the carriage are formed in the through holes provided in the vicinity of the mounting surfaces on both ends and the mounting surfaces. A support insulator having a hole, a fastening plate disposed inside the through hole, and a fastening member are configured, and the fastening member is inserted into the attachment hole from both sides of the support insulator inserted between the carriage and the conductor. Since the conductor is supported and fixed to the carriage by tightening the clamping plate, the support insulator for fixing the conductor part of the switchgear is inexpensive because it does not require high casting technology for the mounting part. In addition, since there is no exposed metal portion on the support insulator side, the electric field is not concentrated, so that it can be made compact. Therefore, the cost of the entire switchgear can be reduced and the size can be reduced.

また、この発明の支持碍子によれば、両端に支持部材を取り付ける取付面を有し、それぞれの取付面の近傍に締付板を内設するための貫通穴が設けられ、締付板を締め付けるための取付穴が、取付面から貫通穴へ貫通して形成されているので、支持碍子の取付部に高い注形技術を要する埋金を必要としない簡単な構造となるため、製造コストを低減することができる。   Further, according to the support insulator of the present invention, there are mounting surfaces for mounting the support members at both ends, and through holes are provided in the vicinity of the respective mounting surfaces for fastening the tightening plate to tighten the tightening plate. Because the mounting hole for this is formed so as to penetrate from the mounting surface to the through hole, the mounting part of the support insulator has a simple structure that does not require a high level of casting technology, thus reducing manufacturing costs can do.

実施の形態１．
図１はこの発明の実施の形態１による開閉装置を示す側面図で、一部破断して内部を示している。本実施の形態の開閉装置は、開閉器本体に真空バルブを用いた遮断器を例にあげて説明する。 Embodiment 1 FIG.
1 is a side view showing a switchgear according to Embodiment 1 of the present invention, partially broken away to show the inside. The switchgear according to the present embodiment will be described by taking a circuit breaker using a vacuum valve in the switch body as an example.

図のように、フレーム１で覆われる台車２は、遮断器の開閉を行う操作機構３を有する。操作機構３からの出力は、出力リンク４、クロスバー５を経て絶縁操作ロッド６に伝達される。遮断器の本体部分である真空バルブ７は固定電極７ａと可動電極７ｂとを有している。固定電極７ａ側に上部固定板８と上部端子９と主回路導体１０が接続されている。上部固定板８，上部端子９，主回路導体１０で固定電極７ａに接続される導体２１を構成する。主回路導体１０の先にはそれに続く導体に接続するための接触子１１が設けられている。   As shown in the figure, the carriage 2 covered with the frame 1 has an operation mechanism 3 for opening and closing the circuit breaker. The output from the operation mechanism 3 is transmitted to the insulating operation rod 6 through the output link 4 and the cross bar 5. The vacuum valve 7 which is a main part of the circuit breaker has a fixed electrode 7a and a movable electrode 7b. The upper fixed plate 8, the upper terminal 9, and the main circuit conductor 10 are connected to the fixed electrode 7a side. The upper fixed plate 8, the upper terminal 9, and the main circuit conductor 10 constitute a conductor 21 connected to the fixed electrode 7a. A contact 11 for connecting to the conductor following the main circuit conductor 10 is provided.

一方、真空バルブ７の可動電極７ｂ側は、割端子１２で接続保持された可撓導体１３を介して下部端子１４に接続され、下部端子１４には主回路導体１５が接続されている。割端子１２，可撓導体１３，下部端子１４及び主回路導体１５で可動電極７ｂに接続される導体２２を構成する。主回路導体１５の先端には上部と同様に接触子１６が設けられている。絶縁操作ロッド６は可動電極７ｂに連結されており、操作機構３の出力で、可動電極７ｂが駆動され、可動電極７ｂと固定電極７ａが接離される。絶縁サポート１７は導体２１，２２間に介在されて、それらを保持している。   On the other hand, the movable electrode 7 b side of the vacuum valve 7 is connected to the lower terminal 14 via the flexible conductor 13 connected and held by the split terminal 12, and the main circuit conductor 15 is connected to the lower terminal 14. The split terminal 12, the flexible conductor 13, the lower terminal 14 and the main circuit conductor 15 constitute a conductor 22 connected to the movable electrode 7b. A contact 16 is provided at the tip of the main circuit conductor 15 in the same manner as the upper part. The insulating operation rod 6 is connected to the movable electrode 7b, and the movable electrode 7b is driven by the output of the operation mechanism 3, and the movable electrode 7b and the fixed electrode 7a are contacted and separated. The insulating support 17 is interposed between the conductors 21 and 22 and holds them.

固定電極７ａに接続される導体２１は、支持碍子３１，締付板３２，締結部材であるボルト３３，及び座金、ばね座金からなる絶縁支持部３０によって台車２に固定されている。同様に、可動電極７ｂに接続される導体２２も、絶縁支持部３０によって台車２に固定されている。絶縁支持部３０の構成と、台車２及び導体２１，２２への取付方法については以下で詳細に説明する。   The conductor 21 connected to the fixed electrode 7a is fixed to the carriage 2 by a support insulator 31, a fastening plate 32, a bolt 33 as a fastening member, and an insulating support portion 30 made of a washer and a spring washer. Similarly, the conductor 22 connected to the movable electrode 7 b is also fixed to the carriage 2 by the insulating support portion 30. The configuration of the insulating support 30 and the method of attaching it to the carriage 2 and the conductors 21 and 22 will be described in detail below.

先ず、絶縁支持部３０から説明する。図２〜図４は絶縁支持部３０を示す図であり、図２は断面図、図３は図２の矢印III方向から見た平面図、図４は図１の矢印IV方向から見た側面図である。
支持碍子３１は概略円柱状をしており、軸方向の両端の端面は互いに平行で、支持部材の取付面３１ａを形成している。それぞれの取付面３１ａの近傍に取付面３１ａに平行な面を有する貫通穴３１ｂが設けられている。図３に示すように、貫通穴３１ｂは支持碍子３１の軸方向に対し垂直に設けられており、平面から見た断面はほぼ矩形状であり、取付面３１ａに対向する面３１ｃが取付面３１ａと平行に形成されている。また、貫通穴３１ｂの内面で、面３１ｃと対向する側は、成形時の僅かな抜き勾配を設けている。そして、取付面３１ａには、貫通穴３１ｂへ通じる取付穴３１ｄが形成されている。
なお、支持碍子３１は、エポキシ樹脂や、ＢＭＣ（BulkMolding Compound）、 セラミック等を材料とし、注形等により製造される。 First, the insulating support part 30 will be described. 2 to 4 are views showing the insulating support portion 30, FIG. 2 is a cross-sectional view, FIG. 3 is a plan view as seen from the direction of arrow III in FIG. 2, and FIG. FIG.
The support insulator 31 has a substantially cylindrical shape, and end surfaces at both ends in the axial direction are parallel to each other to form a mounting surface 31a of the support member. A through hole 31b having a surface parallel to the mounting surface 31a is provided in the vicinity of each mounting surface 31a. As shown in FIG. 3, the through hole 31b is provided perpendicular to the axial direction of the support insulator 31, the cross section viewed from the plane is substantially rectangular, and the surface 31c facing the mounting surface 31a is the mounting surface 31a. Are formed in parallel. In addition, the side facing the surface 31c on the inner surface of the through hole 31b is provided with a slight draft at the time of molding. An attachment hole 31d that leads to the through hole 31b is formed in the attachment surface 31a.
The support insulator 31 is manufactured by casting or the like using an epoxy resin, BMC (Bulk Molding Compound), ceramic, or the like as a material.

貫通穴３１ｂの内部には締付板３２が挿入され配置される。図５は締付板の一例を示す図である。図の（ａ）は正面図、（ｂ）は（ａ）の矢印方向から見た側面断面図である。図のように、締付板３２は板状部材からなり、支持碍子３１の取付穴３１ｄに対応するねじ穴３２ａが加工されている。外形は支持碍子３１の貫通穴３１ｂからはみ出さない大きさとし、板厚はねじ穴のサイズに対応するナットの厚さ程度とする。また材質は、強度の面から鉄やアルミ等の金属が望ましい。
上記３１，３２と締結部材であるボルト３３と、座金３４，ばね座金３５とで絶縁支持部３０を構成する。 A fastening plate 32 is inserted and disposed in the through hole 31b. FIG. 5 is a diagram showing an example of a fastening plate. (A) of a figure is a front view, (b) is side sectional drawing seen from the arrow direction of (a). As shown in the figure, the fastening plate 32 is made of a plate-like member, and a screw hole 32a corresponding to the mounting hole 31d of the support lever 31 is processed. The outer shape is a size that does not protrude from the through hole 31b of the support insulator 31, and the plate thickness is about the thickness of the nut corresponding to the size of the screw hole. The material is preferably a metal such as iron or aluminum in terms of strength.
The insulating support portion 30 is constituted by the bolts 33, which are the fastening members 31, 32, the washer 34, and the spring washer 35.

次に、絶縁支持部３０の取付方法について説明する。図２に示すように、台車２と、導体２１の上部固定板８及び導体２２の下部端子１４との間に支持碍子３１を挿入し、取付面３１ａを相手側の取付面に組み合わせ、支持碍子３１の両側から、取付穴３１ｄに座金３４，ばね座金３５を介してボルト３３を挿通させて締付板３２のねじ穴３２ａへ螺合させる。この状態で、ボルト３３を締め付けることにより締付板３２が締め付けられて、台車２と上部固定板８及び下部端子１４とが強固に支持固定される。   Next, the attachment method of the insulation support part 30 is demonstrated. As shown in FIG. 2, a support insulator 31 is inserted between the carriage 2 and the upper fixing plate 8 of the conductor 21 and the lower terminal 14 of the conductor 22, and the mounting surface 31 a is combined with the other mounting surface, From both sides of the bolt 31, the bolt 33 is inserted into the mounting hole 31 d via the washer 34 and the spring washer 35 and screwed into the screw hole 32 a of the fastening plate 32. In this state, the tightening plate 32 is tightened by tightening the bolt 33, and the carriage 2, the upper fixing plate 8, and the lower terminal 14 are firmly supported and fixed.

次に、作用について説明する。支持碍子は基本的には導体などの充電部を絶縁支持するものなので、通常支持部材の少なくとも一方は充電部である。本実施の形態の場合では、上部固定板８及び下部端子１４が充電部である。充電部近傍に金属部が露出していると電界が集中する。本実施の形態による支持碍子３１は、締付板３２が支持碍子３１に設けられた貫通穴３１ｂ内に収まっているので外部に露出する金属部分が無いため、電界が集中するのを抑制でき、また、充電部側から接地側に至る沿面絶縁距離も十分確保することができる。   Next, the operation will be described. Since the supporting insulator basically supports and insulates a charging part such as a conductor, at least one of the supporting members is usually a charging part. In the case of the present embodiment, the upper fixing plate 8 and the lower terminal 14 are charging parts. If the metal part is exposed near the charged part, the electric field is concentrated. The support insulator 31 according to the present embodiment can suppress the concentration of the electric field because there is no metal portion exposed to the outside since the fastening plate 32 is accommodated in the through hole 31b provided in the support insulator 31. Further, a sufficient creeping insulation distance from the charging part side to the ground side can be ensured.

上記までの説明では、絶縁支持部３０の締付板を１枚の板材で構成したものについて説明したが、次に、それ以外の締付板について説明する。図６は締付板の他の例を示す図である。図の（ａ）は平面図を、（ｂ）は（ａ）の矢印方向から見た側面断面図を示す。図のように、支持碍子３１の取付穴３１ｄに対応させたボルト穴３６ａを有する薄板の板材３６に、そのボルト穴３６ａと中心を合わせてナット３７を溶接又は接着により固着している。板材３６の材料は、ナット３７を溶接し易く強度的にも優れた鋼板が望ましい。
このような構成の締付板を図２と同様の方法で、締結部材であるボルト３３によって、座金３４，ばね座金３５介して締結することにより、締付板３２を用いた場合と同様な作用効果を発揮できる。 In the above description, the fastening plate of the insulating support portion 30 has been described as being constituted by a single plate material. Next, other fastening plates will be described. FIG. 6 is a view showing another example of the fastening plate. (A) of a figure shows a top view, (b) shows the side sectional view seen from the arrow direction of (a). As shown in the drawing, a nut 37 is fixed to a thin plate member 36 having a bolt hole 36a corresponding to the mounting hole 31d of the support insulator 31 by welding or bonding so as to be aligned with the bolt hole 36a. The plate material 36 is preferably a steel plate that is easy to weld the nut 37 and is excellent in strength.
The fastening plate having such a structure is fastened by a bolt 33 as a fastening member through a washer 34 and a spring washer 35 in the same manner as in FIG. The effect can be demonstrated.

更に、締付板の別の例を図７に示す。図の（ａ）は取付状態の部分断面図を示し、（ｂ）は締結部材であるリベットを示している。図において、貫通穴３１ｂ内部に配置される締付板は、図６の板材３６とほぼ同様の外形をした薄板の板材３８とし、支持碍子３１の取付穴３１ｄに対応させてリベット穴３８ａが設けられている。リベット３９は、図の（ｂ）に示すように、片側からの作業だけでかしめができるブラインドリベットと呼ばれるタイプのものを使用する。シャフト３９ａ，フランジ３９ｂ，スリーブ３９ｃで構成されている。   Furthermore, another example of the fastening plate is shown in FIG. (A) of a figure shows the fragmentary sectional view of an attachment state, (b) has shown the rivet which is a fastening member. In the figure, the fastening plate disposed inside the through hole 31b is a thin plate 38 having the same outer shape as the plate 36 of FIG. 6, and a rivet hole 38a is provided corresponding to the mounting hole 31d of the support lever 31. It has been. The rivet 39 is of a type called a blind rivet that can be caulked only from one side as shown in FIG. A shaft 39a, a flange 39b, and a sleeve 39c are included.

次に、取付方法を説明する。先ず、支持碍子３１を台車２と上部固定板８又は下部端子１４との間に挿入して取付穴同士を組み合わせ、次に、専用工具を用いてリベット３９のシャフト３９ａ部を把持して、支持碍子３１の両側から取付穴３１ｄとリベット穴３８ａに挿通し、フランジ３９ｂを取付部の面へ当接させる。次に、工具を作動させてシャフト３９ａを工具へ引き込み、スリーブ３９ｃ先端部を変形させる。更にシャフト３９ａを引き込むとシャフト３９ａが切断されて、図（ａ）のような状態になり、相手側支持部材と支持碍子３１が強固に締結される。   Next, an attachment method will be described. First, the support insulator 31 is inserted between the carriage 2 and the upper fixing plate 8 or the lower terminal 14 so that the mounting holes are combined, and then the shaft 39a portion of the rivet 39 is gripped by using a dedicated tool to support it. The flange 31b is brought into contact with the surface of the attachment portion through the attachment hole 31d and the rivet hole 38a from both sides of the insulator 31. Next, the tool is operated to pull the shaft 39a into the tool, and the tip of the sleeve 39c is deformed. When the shaft 39a is further pulled, the shaft 39a is cut and the state as shown in FIG. 9A is obtained, and the counterpart support member and the support insulator 31 are firmly fastened.

以上のような支持碍子３１の取付作業において、支持碍子３１の取付面３１ａと、相手側の支持部材である台車２，上部固定板８，及び下部端子１４側の取付面とを組み合わせる際の、位置あわせを容易にする構成について説明する。図２に示すように、支持碍子３１の導体側の取付面３１ａには突起部３１ｅを設け、上部固定板８（又は下部端子１４）の対応する位置には、図４に示すように、係止孔８ａ（又は１４ａ）を設けている。一方、台車２側の取付面３１ａには凹部３１ｆを設け、台車２側の対応する位置に突起部を設けている。
このような構成により、突起部又は凹部で相手側と係合し、支持碍子３１と相手側の支持部材との間の相対移動が阻止されて位置決めされる。なお、両取付面３１ａとも突起部としても良く、また両方とも凹部のみとしても良い。 In the mounting operation of the support lever 31 as described above, when the mounting surface 31a of the support lever 31 is combined with the mounting surface on the side of the carriage 2, the upper fixing plate 8 and the lower terminal 14 which is the counterpart support member, A configuration that facilitates alignment will be described. As shown in FIG. 2, a protrusion 31e is provided on the conductor-side attachment surface 31a of the support insulator 31, and a corresponding position of the upper fixing plate 8 (or the lower terminal 14) is provided at the corresponding position as shown in FIG. A stop hole 8a (or 14a) is provided. On the other hand, the mounting surface 31a on the cart 2 side is provided with a recess 31f, and a projection is provided at a corresponding position on the cart 2 side.
With such a configuration, the protruding portion or the recessed portion engages with the mating side, and relative movement between the supporting lever 31 and the mating side supporting member is prevented and positioning is performed. Both the attachment surfaces 31a may be protrusions, or both may be only recesses.

次に、支持碍子の他の例について説明する。図８は支持碍子の他の例を示す図である。図２〜４と同等部分は同一符号で示し説明は省略する。相違点は、貫通穴の形状である。図２〜４に示した支持碍子３１の貫通穴３１ｂの平面から見た断面は、取付面３１ａと平行な面３１ｃを持つ略矩形状であったが、図８に示す支持碍子４０の貫通穴４０ｂは、取付面４０ａとの対向面４０ｃを円弧状の曲面としている。内部に配置する締付板４１の一面も対向面４０ｃに合わせた曲面とする。なお。円弧状ではなく、中央部を尖らせた斜面状（二等辺三角形の２斜面のような形状）としても良い。
このような形状の貫通孔を有する支持碍子、及びそれに対応する締付板を用いれば、組立時に締付板の位置決めが容易となる。 Next, another example of the support insulator will be described. FIG. 8 is a view showing another example of the support insulator. The parts equivalent to those in FIGS. The difference is the shape of the through hole. The cross section seen from the plane of the through-hole 31b of the support lever 31 shown in FIGS. 2-4 was substantially rectangular shape with the surface 31c parallel to the attachment surface 31a, but the through-hole of the support lever 40 shown in FIG. 40b has an arcuate curved surface 40c facing the mounting surface 40a. One surface of the fastening plate 41 disposed inside is also a curved surface matching the facing surface 40c. Note that. Instead of a circular arc shape, it may be a sloped shape with a sharp central part (a shape like two slopes of an isosceles triangle).
If the supporting insulator having the through hole having such a shape and the corresponding fastening plate are used, the fastening plate can be easily positioned at the time of assembly.

なお、以上までの説明では、開閉装置として開閉器本体に真空バルブを用いた遮断器の場合を説明したが、これに限定するものではない。   In the above description, the case of a circuit breaker using a vacuum valve as a switch body as a switch device has been described, but the present invention is not limited to this.

また、以上で説明した絶縁支持部に使用した支持碍子は、開閉装置以外でも、少なくとも一方が充電部である２つの支持部材を所定の間隔を保ち絶縁支持する支持碍子として広く適用できる。   Further, the support insulator used for the insulating support portion described above can be widely applied as a support insulator that insulates and supports two support members, at least one of which is a charging portion, other than the switchgear.

以上のように、本実施の形態の開閉装置によれば、台車と、開閉器本体の両端に接続された導体と、導体のそれぞれを台車に絶縁支持する絶縁支持部とを備えて構成した開閉装置において、絶縁支持部は、両端に形成した取付面の近傍にそれぞれ設けられた貫通穴と取付面から貫通穴へ通じる取付穴とを有する支持碍子と、貫通穴の内部に配置される締付板と、締付板を締め付ける締結部材とを備え、台車と導体の間に挿入した支持碍子の両側から、取付穴に挿通した締結部材により締付板を締め付けて、導体を台車に支持固定するようにしたので、開閉装置の導体部を固定する支持碍子を、取付部に高い注形技術を要する埋金を必要としない構造としたため、安価に製造でき、また、支持碍子側は支持碍子の外形より外に露出する金属部材がないので電界が集中しないためコンパクにできる。従って、開閉装置全体のコスト低減と、コンパクト化を実現することができる。   As described above, according to the switchgear of the present embodiment, the switchgear comprising the carriage, the conductors connected to both ends of the switch body, and the insulating support part that insulates and supports each of the conductors on the carriage. In the apparatus, the insulating support portion includes a support insulator having a through hole provided in the vicinity of the attachment surface formed at both ends and an attachment hole that leads from the attachment surface to the through hole, and a tightening member disposed inside the through hole. Plate and a fastening member for fastening the fastening plate. The fastening plate is fastened by a fastening member inserted into the mounting hole from both sides of the support insulator inserted between the carriage and the conductor, and the conductor is supported and fixed to the carriage. Since the support insulator for fixing the conductor part of the switchgear has a structure that does not require a buried metal that requires high casting technology in the mounting part, it can be manufactured at low cost, and the support insulator side is the support insulator side. Metal parts exposed outside the outer shape Because it is not possible to compact because the electric field is not concentrated. Therefore, it is possible to realize cost reduction and downsizing of the entire switchgear.

また、絶縁支持部の支持碍子の貫通穴に配置する締付板を、支持碍子の取付穴に対応させたねじ穴を有する板材で構成し、ボルトによって締結するようにしたので、締付板の製作が簡単となる。
また、締付板を薄い板材にボルトを固着して構成し、ボルト締めによって締結するようにしたので、締付板の重量を軽減でき、絶縁支持部が軽量化できる。
また、締付板を薄い板材としリベットで締結するようにしたので、振動などによってゆるみが生じることがなく、信頼性の高い開閉装置を提供できる。
また、支持碍子の取付面に支持部材と係合する突起部又は凹部を設け、支持碍子と相手側の支持部材との間の相対移動を阻止するようにしたので、取付時の作業性が向上する。 In addition, the fastening plate disposed in the through hole of the support insulator of the insulating support portion is made of a plate material having a screw hole corresponding to the attachment hole of the support insulator and is fastened by a bolt. Production is simple.
Further, since the fastening plate is constituted by fixing a bolt to a thin plate material and fastened by bolt fastening, the weight of the fastening plate can be reduced and the insulating support portion can be reduced in weight.
In addition, since the fastening plate is made of a thin plate and fastened with rivets, loosening does not occur due to vibration and the like, and a highly reliable opening / closing device can be provided.
In addition, the mounting surface of the support insulator is provided with a protrusion or recess that engages with the support member to prevent relative movement between the support insulator and the counterpart support member, improving workability during mounting. To do.

更にまた、本実施の形態の支持碍子によれば、少なくとも一方が充電部である２つの支持部材を所定の間隔を保ち絶縁支持する支持碍子であって、両端に支持部材を取り付ける取付面を有し、それぞれの取付面の近傍に締付板を内設するための貫通穴を設け、両取付面側から締付板を締め付けるための取付穴を、取付面から貫通穴へ貫通して形成したので、取付部に高い注形技術を要する埋金を必要としない簡単な構造となるため、製造コストを削減でき、安価でコンパクトな支持碍子を提供できる。   Furthermore, according to the support insulator of the present embodiment, the support insulator that insulates and supports the two support members, at least one of which is the charging unit, having a predetermined interval, and has mounting surfaces for attaching the support members to both ends. In addition, a through hole is provided in the vicinity of each mounting surface to install a clamping plate, and a mounting hole for tightening the clamping plate from both mounting surfaces is formed through the mounting surface to the through hole. Therefore, since it becomes a simple structure which does not require the embedding which requires a high casting technique in an attaching part, manufacturing cost can be reduced and an inexpensive and compact support insulator can be provided.

受配電設備等に適用される電力用の開閉装置、及び、高電圧機器の主回路導体等の充電部を支持固定する支持碍子に広く適用できる。   The present invention can be widely applied to power switchgears applied to power distribution facilities and the like and support insulators that support and fix charging parts such as main circuit conductors of high-voltage equipment.

この発明の実施の形態１による開閉装置を示す側面図である。It is a side view which shows the switchgear by Embodiment 1 of this invention. この発明の実施の形態１による開閉装置の絶縁支持部を示す断面図である。It is sectional drawing which shows the insulation support part of the switchgear by Embodiment 1 of this invention. 図２を矢印III方向から見た平面図である。It is the top view which looked at FIG. 2 from the arrow III direction. 図２を矢印IV方向から見た側面図である。It is the side view which looked at FIG. 2 from the arrow IV direction. この発明の実施の形態１による開閉装置の絶縁支持部に使用する締付板の一例を示す図である。It is a figure which shows an example of the clamping board used for the insulation support part of the switchgear by Embodiment 1 of this invention. この発明の実施の形態１による開閉装置の絶縁支持部に使用する締付板の他の例を示す図である。It is a figure which shows the other example of the clamping board used for the insulation support part of the switchgear by Embodiment 1 of this invention. この発明の実施の形態１による開閉装置の絶縁支持部に使用する締付板の別の例を示す図である。It is a figure which shows another example of the clamping board used for the insulation support part of the switchgear by Embodiment 1 of this invention. この発明の実施の形態１による開閉装置の絶縁支持部の他の例を示す平面図である。It is a top view which shows the other example of the insulation support part of the switchgear by Embodiment 1 of this invention. 従来の導体支持碍子の取付部を示す図である。It is a figure which shows the attaching part of the conventional conductor support insulator.

符号の説明Explanation of symbols

２：台車 ３：操作機構
７：開閉器本体（真空バルブ） ２１，２２：導体
３０：絶縁支持部 ３１：支持碍子
３１ａ：取付面 ３１ｂ：貫通穴
３１ｄ：取付穴 ３１ｅ：突起部
３１ｆ：凹部 ３２：締付板
３２ａ：ねじ穴 ３３：ボルト
３６：板材 ３６ａ：ボルト穴
３７：ナット ３８：板材
３８ａ：リベット穴 ３９：リベット
４０：支持碍子 ４０ｂ：貫通穴
４１：締付板。
2: Cart 3: Operation mechanism 7: Switch body (vacuum valve) 21, 22: Conductor 30: Insulation support 31: Support insulator 31a: Mounting surface 31b: Through hole 31d: Mounting hole 31e: Projection 31f: Recess 32 : Tightening plate 32a: Screw hole 33: Bolt 36: Plate material 36a: Bolt hole 37: Nut 38: Plate material 38a: Rivet hole 39: Rivet 40: Support lever 40b: Through hole 41: Tightening plate

Claims (6)

開閉器本体の開閉を行う操作機構を収容する台車と、上記開閉器本体の両端に接続された導体と、上記導体のそれぞれを上記台車に絶縁支持する絶縁支持部とを備えた開閉装置において、
上記絶縁支持部は、両端に形成した取付面の近傍にそれぞれ設けられた貫通穴と上記取付面から上記貫通穴へ通じる取付穴とを有する支持碍子と、上記貫通穴の内部に配置される締付板と、上記締付板を締め付ける締結部材とを備え、上記台車と上記導体の間に挿入した上記支持碍子の両側から、上記取付穴に挿通した上記締結部材により上記締付板が締め付けられて、上記導体が上記台車に支持固定されていることを特徴とする開閉装置。 In a switchgear comprising a carriage for accommodating an operating mechanism for opening and closing the switch body, conductors connected to both ends of the switch body, and an insulating support part for insulatingly supporting each of the conductors to the carriage,
The insulating support portion includes a support insulator having a through hole provided in the vicinity of the attachment surface formed at both ends, an attachment hole communicating from the attachment surface to the through hole, and a fastening member disposed in the through hole. The fastening plate includes a fastening plate and a fastening member for fastening the fastening plate, and the fastening plate is fastened by the fastening member inserted into the mounting hole from both sides of the support insulator inserted between the carriage and the conductor. An opening / closing device in which the conductor is supported and fixed to the carriage. 請求項１記載の開閉装置において、上記締付板は上記取付穴に対応させたねじ穴を有する板材であり、上記締結部材はボルトを使用することを特徴とする開閉装置。   2. The switchgear according to claim 1, wherein the fastening plate is a plate member having a screw hole corresponding to the mounting hole, and the fastening member uses a bolt. 請求項１記載の開閉装置において、上記締付板は上記取付穴に対応させたボルト穴を有する板材に、上記ボルト穴に合わせてナットを固着して構成されており、上記締結部材はボルトを使用することを特徴とする開閉装置。   2. The switchgear according to claim 1, wherein the fastening plate is configured by fixing a nut in accordance with the bolt hole to a plate material having a bolt hole corresponding to the mounting hole, and the fastening member includes a bolt. A switchgear characterized by being used. 請求項１記載の開閉装置において、上記締付板は上記取付穴に対応させたリベット穴を有する板材であり、締結部材はリベットを使用することを特徴とする開閉装置。   2. The switchgear according to claim 1, wherein the fastening plate is a plate member having a rivet hole corresponding to the mounting hole, and the fastening member uses a rivet. 請求項１〜請求項４のいずれか１項に記載の開閉装置において、上記支持碍子の上記取付面に上記台車側及び上記導体側の面と係合する突起部又は凹部を設けたことを特徴とする開閉装置。   The switchgear according to any one of claims 1 to 4, wherein the mounting surface of the support insulator is provided with a protrusion or a recess that engages the surface on the cart side and the conductor side. Opening and closing device. 少なくとも一方が充電部である２つの支持部材を所定の間隔を保ち絶縁支持する支持碍子であって、両端に上記支持部材を取り付ける取付面を有し、それぞれの上記取付面の近傍に締付板を内設するための貫通穴が設けられ、上記両取付面側から上記締付板を締め付けるための取付穴が、上記取付面から上記貫通穴へ貫通して形成されていることを特徴とする支持碍子。   A support insulator that insulates and supports two support members, at least one of which is a charging unit, having a predetermined interval, and has a mounting surface for mounting the support member at both ends, and a clamping plate in the vicinity of each of the mounting surfaces Through holes are provided, and mounting holes for tightening the clamping plate from both the mounting surfaces are formed to penetrate from the mounting surfaces to the through holes. Supporting lion.
JP2004352617A 2004-12-06 2004-12-06 Switchgear and support insulator Active JP4351988B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2004352617A JP4351988B2 (en) 2004-12-06 2004-12-06 Switchgear and support insulator
TW094106546A TWI294128B (en) 2004-12-06 2005-03-04 Switch gear and supporting insulator
KR1020050030019A KR100611597B1 (en) 2004-12-06 2005-04-11 Circuit breaker and support insulator
CNB2005100650640A CN100377265C (en) 2004-12-06 2005-04-11 Switchgear and supporting isolator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004352617A JP4351988B2 (en) 2004-12-06 2004-12-06 Switchgear and support insulator

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JP2006164678A JP2006164678A (en) 2006-06-22
JP4351988B2 true JP4351988B2 (en) 2009-10-28

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CN (1) CN100377265C (en)
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Publication number Priority date Publication date Assignee Title
JP5744351B2 (en) * 2013-01-07 2015-07-08 三菱電機株式会社 Vacuum circuit breaker
KR101493703B1 (en) * 2014-11-07 2015-02-17 주식회사 비츠로테크 Barrier for vacuum circuit breaker
TWI608237B (en) * 2016-05-09 2017-12-11 Electrical connection device
CN106128854A (en) * 2016-08-15 2016-11-16 珠海许继电气有限公司 A kind of arc-chutes base support and use the vacuum circuit breaker of this support member

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4133092A1 (en) * 1991-09-30 1993-04-01 Siemens Ag MULTIPOLE VACUUM SWITCH WITH A POLAR DRIVE UNIT FOR EVERY VACUUM SWITCH TUBE
JPH08222090A (en) * 1995-02-10 1996-08-30 Toshiba Corp Vacuum circuit breaker
CN2319914Y (en) * 1997-11-11 1999-05-19 赵学文 Vacuum circuit breaker
CN2329082Y (en) * 1998-06-12 1999-07-14 西安森源电气有限责任公司 Insulation tube for indoor high voltage vacuum breaker

Also Published As

Publication number Publication date
KR100611597B1 (en) 2006-08-10
TW200620332A (en) 2006-06-16
JP2006164678A (en) 2006-06-22
TWI294128B (en) 2008-03-01
CN100377265C (en) 2008-03-26
CN1787124A (en) 2006-06-14
KR20060063560A (en) 2006-06-12

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