JP5225167B2 - Disconnector - Google Patents
Disconnector Download PDFInfo
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- JP5225167B2 JP5225167B2 JP2009070209A JP2009070209A JP5225167B2 JP 5225167 B2 JP5225167 B2 JP 5225167B2 JP 2009070209 A JP2009070209 A JP 2009070209A JP 2009070209 A JP2009070209 A JP 2009070209A JP 5225167 B2 JP5225167 B2 JP 5225167B2
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- blade
- hole
- conductors
- pin
- fixed terminal
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- 239000004020 conductor Substances 0.000 claims description 36
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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Description
この発明は断路器、特にブレードを有する断路器に関するものである。 The present invention relates to a disconnector, and more particularly to a disconnector having a blade.
従来のブレード形断路器は図５−図８に示すように構成されていた。（例えば特許文献１参照）。図５は従来のブレード形断路器の構成を示す正面図、図６はその側面図、図７は図６のＢ−Ｂ線における断面図、図８は図７に示す断路器のブレードが固定端子と接合し始めた状態を示す断面図である。 Conventional blade-type disconnectors have been configured as shown in FIGS. (For example, refer to Patent Document 1). 5 is a front view showing the configuration of a conventional blade disconnector, FIG. 6 is a side view thereof, FIG. 7 is a cross-sectional view taken along line BB of FIG. 6, and FIG. 8 is fixed to the blade of the disconnector shown in FIG. It is sectional drawing which shows the state which started to join with a terminal.
これらの図に示すように、従来の断路器は、間隔を介して対向配置された一対の導電体からなるブレード１の一端（図５、図６において下端）がブレード固定部２を両導電体の間に挟み込むようにブレード固定部２の外側面と係合し、軸３によって回転可能に支持されると共に、他端（図５、図６において上端）が固定端子４を両導電体の間に挟み込む形で固定端子４に接合し得るようにされている。 As shown in these drawings, in the conventional disconnector, one end (the lower end in FIGS. 5 and 6) of the blade 1 made of a pair of conductors arranged to face each other with a gap between the blade fixing portion 2 and the two conductors. Is engaged with the outer surface of the blade fixing portion 2 so as to be sandwiched between them, and is rotatably supported by the shaft 3, and the other end (the upper end in FIGS. 5 and 6) has the fixing terminal 4 between the two conductors. It can be joined to the fixed terminal 4 by being sandwiched between them.
また、ブレード１の固定端子４との接合部より一端側において各導電体に貫通孔５を設け、これらの貫通孔に対応する部分の各導電体間に筒状のスペーサ６を配設すると共に、貫通孔５より僅かに小径のピン７をスペーサ６を貫通させる形で各導電体の貫通孔５に嵌合し、ピン７の一端を止め輪８で固定すると共に、ピン７の他端と一方の導電体の外面との間に圧縮ばね９を装着し、固定端子４との接合時における接圧を確保する構成とされている。また、１０はブレード１を回動させるための絶縁操作ロッド、１１は絶縁操作ロッドとブレード１との結合部である。 Further, through holes 5 are provided in each conductor on one end side from the joint portion with the fixed terminal 4 of the blade 1, and a cylindrical spacer 6 is disposed between the respective conductors in portions corresponding to these through holes. The pin 7 having a slightly smaller diameter than the through hole 5 is fitted into the through hole 5 of each conductor so as to pass through the spacer 6, and one end of the pin 7 is fixed by the retaining ring 8, and the other end of the pin 7 is A compression spring 9 is mounted between the outer surface of one of the conductors, and a contact pressure at the time of joining to the fixed terminal 4 is ensured. Reference numeral 10 denotes an insulating operation rod for rotating the blade 1, and 11 denotes a coupling portion between the insulating operation rod and the blade 1.
従来の断路器のブレードは以上のように構成されており、ブレード１に形成された貫通孔５とピン７との間には僅かの隙間しかないため、ブレード１の各導電体が圧縮ばね９に抗して間隔を広げようとする場合には、各導電体はピン７に沿って平行移動することになる。一方、ブレード１の他端が固定端子４と接合する場合には、ブレード１の各導電体が図８に示すように固定端子４の先端部の傾斜形状に合わせてハの字状に開き、接触角度を保持しようとするが、ブレード１の各導電体は上述のように、ピン７に対して平行にしか移動しない構成となっているため、固定端子４の先端部の傾斜形状に合わせてハの字状に傾斜することができず、ブレードの各導電体が広がろうとする際にがたつき、スムースに広がらないという問題点があった。 The blade of the conventional disconnector is configured as described above, and since there is only a slight gap between the through hole 5 formed in the blade 1 and the pin 7, each conductor of the blade 1 is compressed by the compression spring 9. In order to increase the distance against the above, each conductor moves in parallel along the pin 7. On the other hand, when the other end of the blade 1 is joined to the fixed terminal 4, each conductor of the blade 1 opens in a C shape in accordance with the inclined shape of the tip of the fixed terminal 4 as shown in FIG. 8. Although the contact angle is to be maintained, each conductor of the blade 1 is configured to move only in parallel to the pin 7 as described above, so that it matches the inclined shape of the tip of the fixed terminal 4. There is a problem in that it cannot be inclined in a letter C shape, and each conductor of the blade rattles when trying to spread, and does not spread smoothly.
この問題点を解決するためには、ブレード１の各導電体に形成されている貫通孔５の径を大きくすればよいが、貫通孔５の径を大きくすると、ブレード１が固定端子４に接合する際、ブレード１の各導電体が大きくハの字状に開き、貫通孔５と間隔保持用のスペーサ６のセンターとを結ぶ軸心に対してピン７がセンターずれを起こし、接圧用の圧縮ばね９が変形してばね荷重が分散し接圧が低下するという問題が生ずる。 In order to solve this problem, the diameter of the through hole 5 formed in each conductor of the blade 1 may be increased. However, if the diameter of the through hole 5 is increased, the blade 1 is joined to the fixed terminal 4. When this is done, each conductor of the blade 1 opens in a generally U shape, the pin 7 is displaced from the center of the axis connecting the through hole 5 and the center of the spacer 6 for spacing, and compression for contact pressure occurs. There arises a problem that the spring 9 is deformed, the spring load is dispersed, and the contact pressure is lowered.
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、ブレード１が固定端子４へ接合し始めた時、ブレードの各導電体が固定端子の先端部の傾斜形状に合わせてハの字状に開く際に、ピン７のセンターずれが発生するのを防止することができ、ブレードに対して十分な接圧を保持することができる断路器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. When the blade 1 starts to be joined to the fixed terminal 4, each conductor of the blade conforms to the inclined shape of the tip of the fixed terminal. An object of the present invention is to provide a disconnector that can prevent the center of the pin 7 from being displaced when it is opened in a U-shape and can maintain a sufficient contact pressure to the blade.
この発明に係る断路器は、間隔を介して対向配置された一対の導電体の一端がブレード固定部に回転可能に支持され、他端が固定端子と接合し得るようにされると共に、上記固定端子との接合部より一端側で上記各導電体にそれぞれ形成された貫通孔と、上記各導電体の対向面側で上記貫通孔に連通して形成されたすり鉢状の傾斜面とを有するブレードと、上記各導電体の間隔を保持する筒状体及び上記筒状体の外端面に形成された湾曲面を有し上記湾曲面を上記傾斜面に当接させて上記一対の導電体間に配設されるスペーサと、上記貫通孔を経て上記スペーサの筒状体に遊嵌され外径が上記貫通孔の内径より小さく上記貫通孔との間にギャップを形成するピンと、上記ピンに装着され、上記各導電体の傾斜面を上記スペーサの湾曲面に押圧するばねとを備えたものである。 In the disconnector according to the present invention, one end of a pair of conductors arranged to face each other with a gap therebetween is rotatably supported by a blade fixing portion, and the other end can be joined to a fixed terminal, and the fixing A blade having a through hole formed in each of the conductors on one end side from a joint with the terminal, and a mortar-shaped inclined surface formed in communication with the through hole on the opposite surface side of the conductors A cylindrical body that holds the gap between the conductors and a curved surface formed on the outer end surface of the cylindrical body, and the curved surface is brought into contact with the inclined surface between the pair of conductors. A spacer to be disposed, a pin loosely fitted into the cylindrical body of the spacer through the through hole, and having an outer diameter smaller than the inner diameter of the through hole and forming a gap with the through hole; The inclined surface of each conductor is pressed against the curved surface of the spacer Is that a Rubane.
この発明に係る断路器は、ブレードの各導電体の対向面側で貫通孔に連通してすり鉢状の傾斜面を形成すると共に、ピンを遊嵌したスペーサの外端面に湾曲面を形成し、上記湾曲面を上記傾斜面に当接するようにしているため、ブレードの固定端子への接合時にピンのセンターずれが生ずることなくブレードの各導電体をハの字状に開くことができ、所定の接圧を保持することが可能となる。また、従来装置に比して部品点数を増加することなく上述の機能を達成することができるものである。 The disconnector according to the present invention forms a mortar-shaped inclined surface in communication with the through hole on the opposing surface side of each conductor of the blade, and forms a curved surface on the outer end surface of the spacer loosely fitted with the pin, Since the curved surface is in contact with the inclined surface, each conductor of the blade can be opened in a C-shape without causing pin misalignment when the blade is joined to the fixed terminal. It is possible to maintain the contact pressure. In addition, the above-described functions can be achieved without increasing the number of parts as compared with the conventional apparatus.
実施の形態１．
以下、この発明の実施の形態１を図にもとづいて説明する。断路器の構成は図５に示す構成と同様であるため、図５を援用して図示を省略する。
図１は実施の形態１による断路器の構成を示すもので、図６のＢ−Ｂ線における断面構成を示している。図２は図１にＡで示す円で囲んだ部分の拡大図、図３はブレードが固定端子に接合し始めた状態を示す断面図、図４はブレードが固定端子に接合し終った状態を示す断面図である。これらの図において図５−図８と同一または相当部分には同一符号を付して説明を省略する。
Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. Since the structure of a disconnector is the same as the structure shown in FIG. 5, illustration is abbreviate | omitted using FIG.
FIG. 1 shows the structure of the disconnector according to the first embodiment, and shows a cross-sectional structure taken along the line BB of FIG. 2 is an enlarged view of a portion surrounded by a circle indicated by A in FIG. 1, FIG. 3 is a sectional view showing a state in which the blade starts to be joined to the fixed terminal, and FIG. 4 is a state in which the blade is joined to the fixed terminal. It is sectional drawing shown. In these drawings, the same or corresponding parts as in FIGS.
実施の形態１による断路器は図１、図２に示すように、ピン７の外径をブレード１５の各導電体に形成された貫通孔５の内径より小さくし、両者間に十分なギャップが形成されるようにすると共に、各導電体の対向面側で上記貫通孔５に連通してすり鉢状の傾斜面５ａを形成している。また、スペーサ６０を構成する筒状体の貫通孔の内径は上記ピン７を筒状体に遊嵌した時、ピン７と筒状体とがほぼ嵌め合い構造となるように、上記ピン７の外径とほぼ同じ内径に形成されている。 As shown in FIGS. 1 and 2, the disconnector according to the first embodiment is configured such that the outer diameter of the pin 7 is smaller than the inner diameter of the through hole 5 formed in each conductor of the blade 15, and there is a sufficient gap between the two. While being formed, a mortar-shaped inclined surface 5a is formed in communication with the through-hole 5 on the opposing surface side of each conductor. In addition, the inner diameter of the through hole of the cylindrical body constituting the spacer 60 is such that when the pin 7 is loosely fitted to the cylindrical body, the pin 7 and the cylindrical body are almost fitted together. The inner diameter is substantially the same as the outer diameter.
更にスペーサ６０は、その筒状体の両端外面にそれぞれ湾曲面６０ａが形成され、この湾曲面が図１、図２に示されるように、ブレードの各導電体に形成されたすり鉢状の傾斜面５ａに当接するようにされている。その他の構成については上述した従来の構成と同様であるため説明を省略する。 Further, the spacer 60 has curved surfaces 60a formed on the outer surfaces of both ends of the cylindrical body, and the curved surfaces are formed as mortar-shaped inclined surfaces formed on the respective conductors of the blade, as shown in FIGS. It is made to contact | abut 5a. Since other configurations are the same as the conventional configuration described above, the description thereof is omitted.
次に、実施の形態１の動作について説明する。
図５の絶縁操作ロッド１０を図５において右方に移動させてブレード１５を固定端子５に接合し始めると、図３に矢印で示すように、ブレード１５の各導電体がハの字状に開いて固定端子４の先端部に接合する。
Next, the operation of the first embodiment will be described.
When the insulation operating rod 10 in FIG. 5 is moved to the right in FIG. 5 to start joining the blade 15 to the fixed terminal 5, each conductor of the blade 15 is shaped like a letter C as shown by an arrow in FIG. 3. Open and join to the tip of the fixed terminal 4.
この時、ブレード１５の各導電体とピン７とは図３に示すように、相対関係が変化するが、ピン７とスペーサ６０とは嵌合状態で嵌め合い構造となっており、かつスペーサの外端面に形成されている湾曲面６０ａと各導電体のすり鉢状の傾斜面５ａとが当接しているため、ピン７はブレード１５に対してセンターずれを起こすことなく、従って圧縮ばね９は変形せずに保持される。 At this time, as shown in FIG. 3, the relative relationship between each conductor of the blade 15 and the pin 7 changes, but the pin 7 and the spacer 60 are fitted together in a fitted state, and the spacer Since the curved surface 60a formed on the outer end surface and the mortar-shaped inclined surface 5a of each conductor are in contact with each other, the pin 7 does not deviate from the center of the blade 15, so that the compression spring 9 is deformed. Retained without.
図４は図３の状態から更にブレード１５を固定端子４側に移動させ、両者が接合し終った状態を示す。この状態ではブレード１５の各導電体は当初の平行状態に保持され、それぞれが固定端子４の両側面に完全に接合され、圧縮ばね９はブレード１５と固定端子４に対し垂直な状態となる。 FIG. 4 shows a state where the blade 15 is further moved to the fixed terminal 4 side from the state of FIG. In this state, the respective conductors of the blade 15 are maintained in the initial parallel state, and are completely joined to both side surfaces of the fixed terminal 4, and the compression spring 9 is in a state perpendicular to the blade 15 and the fixed terminal 4.
この発明はブレードを有する受電、配電用の開閉装置に広く適用することが可能である。 The present invention can be widely applied to power receiving / distributing switchgears having blades.
１、１５ ブレード、 ２ ブレード固定部、 ３ 軸、 ４ 固定端子、 ５ 貫通孔、 ５ａ 傾斜面、 ６、６０ スペーサ、 ７ ピン、 ８ 止め輪、 ９ 圧縮ばね、 １０ 絶縁操作ロッド、 １１ 結合部、 ６０ａ 湾曲面。 1, 15 blade, 2 blade fixing part, 3 axis, 4 fixing terminal, 5 through hole, 5a inclined surface, 6, 60 spacer, 7 pin, 8 retaining ring, 9 compression spring, 10 insulating operation rod, 11 coupling part, 60a Curved surface.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009070209A JP5225167B2 (en) | 2009-03-23 | 2009-03-23 | Disconnector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009070209A JP5225167B2 (en) | 2009-03-23 | 2009-03-23 | Disconnector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010225374A JP2010225374A (en) | 2010-10-07 |
| JP5225167B2 true JP5225167B2 (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009070209A Active JP5225167B2 (en) | 2009-03-23 | 2009-03-23 | Disconnector |
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| Country | Link |
|---|---|
| JP (1) | JP5225167B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489407A (en) * | 2015-12-30 | 2016-04-13 | 北京双杰电气股份有限公司 | Isolating knife assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101605138B1 (en) | 2014-05-19 | 2016-04-04 | 현대중공업 주식회사 | Disconnecting switch |
| WO2019058631A1 (en) * | 2017-09-21 | 2019-03-28 | 三菱電機株式会社 | Switch |
| WO2019215946A1 (en) | 2018-05-10 | 2019-11-14 | 三菱電機株式会社 | Switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03257722A (en) * | 1990-03-07 | 1991-11-18 | Mitsubishi Electric Corp | Blade for circuit breaker |
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2009
- 2009-03-23 JP JP2009070209A patent/JP5225167B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489407A (en) * | 2015-12-30 | 2016-04-13 | 北京双杰电气股份有限公司 | Isolating knife assembly |
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| Publication number | Publication date |
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| JP2010225374A (en) | 2010-10-07 |
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