JP5851778B2 - Cast insulator and manufacturing method - Google Patents

Description

本発明の実施形態は、電源系統を構成する電気部材をエポキシ樹脂で注型した注型絶縁物およびその製造方法に関する。   Embodiments of the present invention relate to a cast insulator in which an electrical member constituting a power supply system is cast with an epoxy resin, and a method for manufacturing the same.

従来、真空バルブ、主回路導体のような電気部材をエポキシ樹脂で注型し、これらの注型絶縁物を組合せ、電源系統を構成した固体絶縁スイッチギヤが知られている（例えば、特許文献１参照。）。   2. Description of the Related Art Conventionally, a solid insulation switchgear in which an electric member such as a vacuum valve and a main circuit conductor is cast with an epoxy resin, and these cast insulators are combined to constitute a power supply system is known (for example, Patent Document 1). reference.).

この種の固体絶縁スイッチギヤを図５に示すが、縦配置された側板１には、第１の電気部材２と第２の電気部材３が横配置で高さ方向に取付け固定されている。側板１は、床板４に垂直に固定されている。   This type of solid insulation switchgear is shown in FIG. 5, and a first electric member 2 and a second electric member 3 are mounted and fixed in the height direction in a lateral arrangement on a side plate 1 arranged in a vertical direction. The side plate 1 is fixed vertically to the floor plate 4.

第１の電気部材２には、第１の可動側絶縁部５が設けられ、側板１に固定されている。第１の可動側絶縁部５は、第１の連結導体６の一側面を第１の絶縁層７に埋め込んだ構成であり、第１の連結導体６を境とし、側板１側にレーストラック状の第１の開口部８、反側板１側に二つのテーパ状の第１、第２の界面接続部９、１０が設けられている。第１の絶縁層７の外周には、図示左右方向の中間部を頂点とし、勾配が数度の第１のテーパ部１１が設けられている。第１のテーパ部１１の頂点は樹脂注型金型の合わせ部となり、離型を容易にさせるための型抜き勾配である。   The first electric member 2 is provided with a first movable-side insulating portion 5 and is fixed to the side plate 1. The first movable-side insulating portion 5 has a configuration in which one side surface of the first connecting conductor 6 is embedded in the first insulating layer 7, and the first connecting conductor 6 serves as a boundary to form a racetrack on the side plate 1 side. Two tapered first and second interface connecting portions 9 and 10 are provided on the first opening 8 and the opposite side plate 1 side. On the outer periphery of the first insulating layer 7, there is provided a first taper portion 11 having an intermediate portion in the horizontal direction in the drawing as a vertex and a gradient of several degrees. The apex of the first taper portion 11 serves as a mating portion of the resin casting mold, and is a die cutting gradient for facilitating release.

第１の界面接続部９には、第１の遮断用真空バルブ１２を注型した第１の遮断部１３が接続されている。第１の遮断部１３には、ケーブルヘッドなどの第１の電気機器１４が接続されている。第２の界面接続部１０には、第１の断路用真空バルブ１５を注型した第１の断路部１６が接続されている。第１の断路部１６には、母線などの第２の電気機器１７が接続されている。真空バルブ１２、１５の可動側には、第１の開口部８内にそれぞれ配置された第１、第２の絶縁操作ロッド１８、１９が連結されており、開閉操作が行われる。   Connected to the first interface connecting portion 9 is a first blocking portion 13 in which a first blocking vacuum valve 12 is cast. A first electric device 14 such as a cable head is connected to the first blocking portion 13. A first disconnecting portion 16 in which a first disconnecting vacuum valve 15 is cast is connected to the second interface connecting portion 10. A second electrical device 17 such as a bus is connected to the first disconnecting portion 16. The movable sides of the vacuum valves 12 and 15 are connected to first and second insulating operation rods 18 and 19 respectively disposed in the first opening 8, and an opening / closing operation is performed.

第２の電気部材３も第１の電気部材２と同様の構成であり、下方向のみを図示しているが、第２の可動側絶縁部２０が設けられ、側板１に固定されている。第２の可動側絶縁部２０は、第２の連結導体２１の一側面を第２の絶縁層２２に埋め込んだ構成であり、第２の連結導体２１を境とし、側板１側に第２の開口部２３、反側板１側に第３の界面接続部２４が設けられている。   The second electric member 3 has the same configuration as that of the first electric member 2 and only the downward direction is illustrated, but the second movable side insulating portion 20 is provided and fixed to the side plate 1. The second movable-side insulating portion 20 has a configuration in which one side surface of the second connecting conductor 21 is embedded in the second insulating layer 22, and the second connecting conductor 21 is used as a boundary, and the second plate is formed on the side plate 1 side. A third interface connecting portion 24 is provided on the opening 23 and the opposite side plate 1 side.

第２の絶縁層２２の外周には、中間部を頂点とし、数度の型抜き勾配の第２のテーパ部２５が設けられている。第３の界面接続部２４には、第２の遮断用真空バルブ２６を注型した第２の遮断部２７と、第３の電気機器２８が接続されている。真空バルブ２６の可動側には、第２の開口部２３内に配置された第３の絶縁操作ロッド２９が連結されており、開閉操作が行われる。   On the outer periphery of the second insulating layer 22, a second taper portion 25 having an intermediate portion as a vertex and a die cutting gradient of several degrees is provided. Connected to the third interface connecting portion 24 is a second blocking portion 27 in which a second blocking vacuum valve 26 is cast, and a third electrical device 28. A third insulating operation rod 29 disposed in the second opening 23 is connected to the movable side of the vacuum valve 26, and an opening / closing operation is performed.

このような構成において、高さ方向の寸法は、第１の可動側絶縁部５と第２の可動側絶縁部２０で決定される。即ち、第１の絶縁層７の第１のテーパ部１１の頂点と床板４間、および反対側の第１のテーパ部１１と第２の絶縁層２２の第２のテーパ部２５の頂点間が最も狭い部分となり、上下方向に配置する第１の電気部材２と第２の電気部材３の高さ方向の寸法を決定するものとなる。   In such a configuration, the dimension in the height direction is determined by the first movable side insulating portion 5 and the second movable side insulating portion 20. That is, the distance between the apex of the first taper portion 11 of the first insulating layer 7 and the floor plate 4, and the apex of the first taper portion 11 on the opposite side and the apex of the second taper portion 25 of the second insulating layer 22. It becomes the narrowest part, and determines the dimension in the height direction of the first electric member 2 and the second electric member 3 arranged in the vertical direction.

特開２０１０−４１８５９号公報JP 2010-41859 A

本発明が解決しようとする課題は、型抜き勾配として設けられているテーパ部１１、２５を最小限の範囲とし、離型時の作業性を損なうことなく、第１の可動側絶縁部５と第２の可動側絶縁部２０の高さ方向の寸法を小さくすることにある。即ち、第１、第２の絶縁層７、２２の外周面に設けられる型抜き勾配の傾斜を取り除くことの可能な注型絶縁物および製造方法を提供することにある。   The problem to be solved by the present invention is that the taper portions 11 and 25 provided as the die-cutting slope are in a minimum range, and the first movable-side insulating portion 5 and the first movable-side insulating portion 5 The purpose is to reduce the dimension in the height direction of the second movable-side insulating portion 20. That is, it is an object of the present invention to provide a casting insulator and a manufacturing method capable of removing the inclination of the die-cutting slope provided on the outer peripheral surfaces of the first and second insulating layers 7 and 22.

上記課題を解決するために、実施形態の注型絶縁物は、真空バルブの可動側を筒状の絶縁体で支持固定する注型絶縁物であって、前記絶縁体の外周面に、少なくとも前記真空バルブの軸方向と平行する平坦部を設けたことを特徴とする。   In order to solve the above problems, a casting insulator according to an embodiment is a casting insulator that supports and fixes a movable side of a vacuum valve with a cylindrical insulator, and at least the outer periphery of the insulator A flat portion parallel to the axial direction of the vacuum valve is provided.

上記課題を解決するために、実施形態の注型絶縁物は、真空バルブの可動側を筒状の絶縁体で支持固定する注型絶縁物であって、前記絶縁体の外周面には、中間部に前記真空バルブの軸方向と平行する平坦部、両端に型抜き勾配のテーパ部を設けたことを特徴とする。 In order to solve the above problems, the casting insulator according to the embodiment is a casting insulator that supports and fixes the movable side of the vacuum valve with a cylindrical insulator, and the outer peripheral surface of the insulator has an intermediate flat portion parallel to the axial direction of the vacuum valve section, characterized in that a tapered portion of the mold draft at both ends.

以下、図面を参照して本発明の実施例を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

先ず、本発明の実施例１に係る注型絶縁物を図１〜図３を参照して説明する。図１は、本発明の実施例１に係る固体絶縁スイッチギヤの構成を示す断面図、図２は、本発明の実施例１に係る注型絶縁物を注型する樹脂注型金型の断面図、図３は、本発明の実施例１に係る注型絶縁物の注型手順を説明する断面図である。なお、従来と同様の構成部分は、同一符号を付した。   First, a cast insulator according to Example 1 of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view showing a configuration of a solid-insulated switchgear according to Embodiment 1 of the present invention, and FIG. 2 is a cross-section of a resin casting mold that casts a casting insulator according to Embodiment 1 of the present invention. FIGS. 3 and 3 are cross-sectional views illustrating the casting procedure of the casting insulator according to the first embodiment of the present invention. In addition, the same code | symbol was attached | subjected to the component similar to the past.

図１に示すように、固体絶縁スイッチギヤは、縦配置された側板１に、第１の電気部材２と第２の電気部材３が横配置で高さ方向に取付け固定されている。側板１は、床板４に垂直に固定されている。   As shown in FIG. 1, the solid insulation switchgear has a first electric member 2 and a second electric member 3 mounted and fixed in a height direction in a lateral arrangement on a side plate 1 arranged in a vertical direction. The side plate 1 is fixed vertically to the floor plate 4.

第１の電気部材２には、第１の可動側絶縁部５が設けられ、側板１に固定されている。第１の可動側絶縁部５は、第１の連結導体６の一側面を第１の絶縁層７に埋め込んだ構成であり、第１の連結導体６を境とし、側板１側にレーストラック状の第１の開口部８、反側板１側に二つのテーパ状の第１、第２の界面接続部９、１０が設けられており、従来方法と同様の構成である。そして、第１の絶縁層７の外周には、図示中間部に床板４と平行の第１の平坦部３０が設けられ、その両側に数度の勾配を持つ第１のテーパ部３１が設けられている。   The first electric member 2 is provided with a first movable-side insulating portion 5 and is fixed to the side plate 1. The first movable-side insulating portion 5 has a configuration in which one side surface of the first connecting conductor 6 is embedded in the first insulating layer 7, and the first connecting conductor 6 serves as a boundary to form a racetrack on the side plate 1 side. Two tapered first and second interface connecting portions 9 and 10 are provided on the first opening 8 and the opposite side plate 1 side, and the configuration is the same as that of the conventional method. On the outer periphery of the first insulating layer 7, a first flat part 30 parallel to the floor plate 4 is provided in the illustrated intermediate part, and a first taper part 31 having a gradient of several degrees is provided on both sides thereof. ing.

第１、第２の界面接続部９、１０にも、従来と同様に、第１の遮断用真空バルブ１２を注型した第１の遮断部１３を介し、第１の電気機器１４が接続されている。また、第２の断路用真空バルブ１５を注型した第１の断路部１６を介し、第１の電気機器１７が接続されている。真空バルブ１２、１５の可動側には、それぞれ第１の開口部８内に配置された第１、第２の絶縁操作ロッド１８、１９が連結されており、図示しない操作機構で開閉操作が行われる。   The first electric device 14 is also connected to the first and second interface connecting portions 9 and 10 through the first blocking portion 13 in which the first blocking vacuum valve 12 is cast, as in the conventional case. ing. In addition, a first electrical device 17 is connected via a first disconnecting portion 16 in which a second disconnecting vacuum valve 15 is cast. The movable sides of the vacuum valves 12 and 15 are connected to first and second insulating operation rods 18 and 19 disposed in the first opening 8 respectively, and an opening / closing operation is performed by an operation mechanism (not shown). Is called.

第２の電気部材３も従来と同様に、下方向のみを図示しているが、第２の可動側絶縁部２０が設けられ、側板１に固定されている。第２の可動側絶縁部２０は、第２の連結導体２１の一側面を第２の絶縁層２２に埋め込んだ構成であり、第２の連結導体２１を境とし、側板１側に第２の開口部２３、反側板１側に第３の界面接続部２４が設けられている。そして、第２の絶縁層２２の外周には、図示中間部に床板４と並行の第２の平坦部３２が設けられ、その両側に数度の勾配を持つ第２のテーパ部３３が設けられている。   The second electric member 3 is also shown only in the downward direction as in the prior art, but the second movable side insulating portion 20 is provided and fixed to the side plate 1. The second movable-side insulating portion 20 has a configuration in which one side surface of the second connecting conductor 21 is embedded in the second insulating layer 22, and the second connecting conductor 21 is used as a boundary, and the second plate is formed on the side plate 1 side. A third interface connecting portion 24 is provided on the opening 23 and the opposite side plate 1 side. On the outer periphery of the second insulating layer 22, a second flat part 32 parallel to the floor plate 4 is provided in the illustrated intermediate part, and a second taper part 33 having a gradient of several degrees is provided on both sides thereof. ing.

第３の界面接続部２４には、第２の遮断用真空バルブ２６を注型した第２の遮断部２７を介し、第３の電気機器２８が接続されている。真空バルブ２６の可動側には、第２の開口部２３内に配置された第３の絶縁操作ロッド２９が連結されており、開閉操作が行われる。   A third electric device 28 is connected to the third interface connecting portion 24 via a second blocking portion 27 in which a second blocking vacuum valve 26 is cast. A third insulating operation rod 29 disposed in the second opening 23 is connected to the movable side of the vacuum valve 26, and an opening / closing operation is performed.

次に、第１の電気部材２を例にとり、第１の可動側絶縁部５を注型する樹脂注型金型を図２を参照して説明する。   Next, taking the first electric member 2 as an example, a resin casting mold for casting the first movable-side insulating portion 5 will be described with reference to FIG.

図２に示すように、樹脂注型金型は、図示左右に第１の金型３４と第２の金型３５に二分割されている。第１の金型３４には、第１のキャビティー３６の図示上下に第１の入れ子３７が設けられている。第１の入れ子３７は、第１のキャビティー３６側に第１の平坦部３０を形成する第１の直線部３８と第１のテーパ部３１を形成する第１の傾斜部３９を持っており、第１の金型３４側に第１のテーパ部１１と同様の傾斜を持つ第２の傾斜部４０を持っている。   As shown in FIG. 2, the resin casting mold is divided into a first mold 34 and a second mold 35 on the left and right in the drawing. The first mold 34 is provided with a first insert 37 above and below the first cavity 36. The first insert 37 has a first straight portion 38 that forms the first flat portion 30 and a first inclined portion 39 that forms the first taper portion 31 on the first cavity 36 side. The second inclined portion 40 having the same inclination as the first tapered portion 11 is provided on the first mold 34 side.

第２の金型３５には、第２のキャビティー４１の図示上下に第２の入れ子４２が設けられている。第２の入れ子４２にも、第１の入れ子３７と同様に、第２のキャビティー４１側に第１の平坦部３０を形成する第２の直線部４３と第１のテーパ部３１を形成する第３の傾斜部４４を持っており、第２の金型３５側に第１のテーパ部１１と同様の傾斜を持つ第４の傾斜部４５を持っている。傾斜部４０、４５は、金型３４、３５を離型するときの型抜き勾配となり、また、直線部３８、４３は、離型方向と平行するものとなる。   The second mold 35 is provided with a second insert 42 above and below the second cavity 41 in the drawing. Similarly to the first insert 37, the second insert 42 is also formed with the second straight portion 43 and the first taper portion 31 that form the first flat portion 30 on the second cavity 41 side. It has the 3rd inclination part 44, and has the 4th inclination part 45 which has the inclination similar to the 1st taper part 11 in the 2nd metal mold | die 35 side. The inclined portions 40 and 45 have a mold release gradient when the molds 34 and 35 are released, and the straight portions 38 and 43 are parallel to the release direction.

また、第１の開口部８を形成する三分割された第３の入れ子４６が設けられている。第３の入れ子４６は、型ばらしのための勾配が設けられている。中央部の第３の入れ子４６には、第１の連結導体６を固定するボルト４７が貫通している。   Further, a third nest 46 divided into three to form the first opening 8 is provided. The third nesting 46 is provided with a gradient for mold release. A bolt 47 for fixing the first connecting conductor 6 passes through the third nest 46 in the center.

次に、注型方法を図３を参照して説明する。   Next, the casting method will be described with reference to FIG.

注型が完了し、第１の絶縁層７となる硬化物が形成されると、図３（ａ）に示すように、第１の金型３４と第２の金型３５を離型する。そして、第１の入れ子３７、第２の入れ子４２、第３の入れ子４６と硬化物を一体で取出す。第１の入れ子３７、第２の入れ子４２は、傾斜部４０、４５によって金型３４、３５から容易に離れる。   When the casting is completed and a cured product to be the first insulating layer 7 is formed, the first mold 34 and the second mold 35 are released as shown in FIG. And the 1st nest | insert 37, the 2nd nest | insert 42, the 3rd nest | insert 46, and hardened | cured material are taken out integrally. The first insert 37 and the second insert 42 are easily separated from the molds 34 and 35 by the inclined portions 40 and 45.

次に、図３（ｂ）に示すように、第３の入れ子４６を取外す。第３の入れ子４６は、第１の開口部８の内面を平行にするために、三分割したもので、先ず中央部を引き抜き、次に両側を内側に移動させながら引き抜く。   Next, as shown in FIG.3 (b), the 3rd nest | insert 46 is removed. The third nest 46 is divided into three parts in order to make the inner surface of the first opening 8 parallel. First, the center portion is pulled out, and then the both sides are pulled out while moving both sides inward.

次に、図３（ｃ）に示すように、第１の入れ子３７と第２の入れ子４２を図示左右方向に移動させながら内側に移動させ硬化物から取外す。これにより、外周面に軸方向と平行の第１の平坦部３０と第１のテーパ部３１を持った第１の絶縁層７を製造することができる。   Next, as shown in FIG. 3C, the first insert 37 and the second insert 42 are moved inward while being moved in the horizontal direction in the figure to be removed from the cured product. Thereby, the 1st insulating layer 7 which has the 1st flat part 30 and the 1st taper part 31 which are parallel to an axial direction on an outer peripheral surface can be manufactured.

ここで、軸方向と平行（側板１と垂直）の第１の平坦部３０を持つとは、製作誤差や組立誤差などを含み、意図的に傾斜を付けないものを指す。   Here, the phrase “having the first flat portion 30 parallel to the axial direction (perpendicular to the side plate 1)” includes a manufacturing error, an assembly error, and the like and does not intentionally be inclined.

なお、可動側絶縁部５、２０は、開口部８、２３に絶縁操作ロッド１８、１９、２９を収納する筒状の絶縁体と言うことができる。そして、その外周面に少なくとも軸方向と平行する平坦部３０、３２を設けることにより、互いの絶縁体の間隔を狭くすることができる。絶縁体には、界面接続部９、１０、２４を介し、軸方向に遮断部１３、２７、断路部１６を支持固定するので、これらの遮断部１３、２７、断路部１６の間隔を狭くすることができる。遮断部１３、２７、断路部１６の外周には、接地層が設けられているので、近接させても絶縁的には問題はない。このため、可動側絶縁部５、２０を積重ねる方向に一列配置し、電源系統を構成する固体絶縁スイッチギヤでは、高さ方向の寸法を低減させることができる。   In addition, the movable side insulating parts 5 and 20 can be said to be cylindrical insulators that house the insulating operation rods 18, 19, and 29 in the openings 8 and 23. And the space | interval of a mutual insulator can be narrowed by providing the flat parts 30 and 32 parallel to an axial direction at least in the outer peripheral surface. Since the insulators support and fix the blocking portions 13 and 27 and the disconnecting portion 16 in the axial direction via the interface connecting portions 9, 10 and 24, the interval between the blocking portions 13 and 27 and the disconnecting portion 16 is narrowed. be able to. Since a grounding layer is provided on the outer periphery of the blocking portions 13 and 27 and the disconnecting portion 16, there is no problem in insulation even if they are close to each other. For this reason, in the solid insulation switchgear which arrange | positions the movable side insulation parts 5 and 20 in a line in the direction to pile up, and comprises a power supply system, the dimension of a height direction can be reduced.

上記実施例１の注型絶縁物によれば、絶縁層７、２２の外周面に、軸方向と平行な平坦部３０、３２を設けているので、床板４や隣接する可動側絶縁部５、２１間を近接させて取付けることができる。このため、固体絶縁スイッチギヤの高さ方向の縮小化を図ることができる。   According to the cast insulator of the first embodiment, since the flat portions 30 and 32 parallel to the axial direction are provided on the outer peripheral surfaces of the insulating layers 7 and 22, the floor plate 4 and the adjacent movable side insulating portion 5, 21 can be attached close to each other. For this reason, the solid insulation switchgear can be reduced in the height direction.

次に、本発明の実施例２に係る注型絶縁物図４を参照して説明する。図４は、本発明の実施例２に係る固体絶縁スイッチギヤの構成を示す断面図である。なお、この実施例２が実施例１と異なる点は、平坦部の構成である。図４において、実施例１と同様の構成部分においては、同一符号を付し、その詳細な説明を省略する。   Next, a cast insulator according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 4 is a cross-sectional view showing the configuration of the solid-insulated switchgear according to the second embodiment of the present invention. The second embodiment is different from the first embodiment in the configuration of the flat portion. In FIG. 4, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図４に示すように、第１の絶縁層７の外周面は、全てを軸方向と平行な第３の平坦部４８としている。また、第２の絶縁層２２の外周面も、全てを軸方向と平行な第４の平坦部４９としている。   As shown in FIG. 4, the entire outer peripheral surface of the first insulating layer 7 is a third flat portion 48 parallel to the axial direction. All of the outer peripheral surface of the second insulating layer 22 is also a fourth flat portion 49 parallel to the axial direction.

上記実施例２の注型絶縁物によれば、実施例１による効果のほかに、第１、第２の絶縁層７、２２の外周面を最小とすることができ、より一層の高さ方向の寸法の縮小化を図ることができる。   According to the cast insulator of the second embodiment, in addition to the effects of the first embodiment, the outer peripheral surfaces of the first and second insulating layers 7 and 22 can be minimized, and the height direction can be further increased. It is possible to reduce the dimensions.

以上述べたような実施形態によれば、固体絶縁スイッチギヤの高さ方向の寸法の縮小化を図ることができる。   According to the embodiment as described above, it is possible to reduce the size of the solid insulating switch gear in the height direction.

本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。   Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

１ 側板
２ 第１の電気部材
３ 第２の電気部材
４ 床板
５、２０ 可動側絶縁部
６、２１ 連結導体
７、２２ 絶縁層
８、２３ 開口部
９、１０、２４ 界面接続部
１１、２５、３１、３３ テーパ部
１２、１５、２６ 真空バルブ
１３、２７ 遮断部
１４、１７、２８ 電気機器
１６ 断路部
１８、１９、２９ 絶縁操作ロッド
３０、３２、４８、４９ 平坦部
３４、３５ 金型
３６、４１ キャビティー
３７、４２、４６ 入れ子
３８、４３ 直線部
３９、４０、４４、４５ 傾斜部
４７ ボルト DESCRIPTION OF SYMBOLS 1 Side plate 2 1st electric member 3 2nd electric member 4 Floor board 5, 20 Movable side insulation part 6, 21 Connection conductor 7, 22 Insulation layer 8, 23 Opening part 9, 10, 24 Interface connection part 11, 25, 31, 33 Taper portion 12, 15, 26 Vacuum valve 13, 27 Shut-off portion 14, 17, 28 Electrical equipment 16 Disconnection portion 18, 19, 29 Insulating operation rod 30, 32, 48, 49 Flat portion 34, 35 Mold 36 , 41 Cavity 37, 42, 46 Nested 38, 43 Straight part 39, 40, 44, 45 Inclined part 47 Bolt

Claims (3)

真空バルブの可動側を筒状の絶縁体で支持固定する注型絶縁物であって、
前記絶縁体の外周面には、中間部に前記真空バルブの軸方向と平行する平坦部、両端に型抜き勾配のテーパ部を設けたことを特徴とする注型絶縁物。 A cast insulator that supports and fixes the movable side of the vacuum valve with a cylindrical insulator,
A casting insulator , wherein an outer peripheral surface of the insulator is provided with a flat portion parallel to the axial direction of the vacuum valve at an intermediate portion, and tapered portions with a die-drawing gradient at both ends . 前記絶縁体に界面接続部を設け、前記真空バルブの可動側を接続固定したことを特徴とする請求項１に記載の注型絶縁物。 The cast insulator according to claim 1 , wherein an interface connection portion is provided on the insulator, and the movable side of the vacuum valve is connected and fixed . 二分割した金型と、A two-part mold,
前記金型に設けられたキャビティーと、A cavity provided in the mold,
前記キャビティー内に設けられるとともに、前記金型側に型抜き勾配の傾斜部、前記キャビティー側の中間部に離型方向と平行な直線部、両端に型抜き勾配の傾斜部を設けた入れ子と、を有する樹脂注型金型で注型される注型絶縁物の製造方法であって、Nesting provided in the cavity, provided with an inclined portion with a die-cutting slope on the mold side, a straight portion parallel to the mold release direction at an intermediate portion on the cavity side, and an inclined portion with a die-cutting slope at both ends And a method for producing a casting insulator that is cast with a resin casting mold having:
注型完了後、先ず、前記金型を離型して硬化物と前記入れ子を一体で取出し、After completion of casting, first, the mold is released, and the cured product and the insert are taken out integrally,
次に、前記入れ子を前記硬化物から取外すことを特徴とする注型絶縁物の製造方法。Next, the cast insulator is manufactured by removing the insert from the cured product.

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