JPWO2018189778A1 - Air circuit breaker - Google Patents

Air circuit breaker Download PDF

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JPWO2018189778A1
JPWO2018189778A1 JP2019512059A JP2019512059A JPWO2018189778A1 JP WO2018189778 A1 JPWO2018189778 A1 JP WO2018189778A1 JP 2019512059 A JP2019512059 A JP 2019512059A JP 2019512059 A JP2019512059 A JP 2019512059A JP WO2018189778 A1 JPWO2018189778 A1 JP WO2018189778A1
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fixed
iron core
circuit breaker
air circuit
shaft
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JP6714947B2 (en
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聡介 内野
智也 出口
説志 岩下
雄大 相良
隆之介 今枝
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Mitsubishi Electric Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/38—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/643—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rotating or pivoting movement
    • H01H50/644—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rotating or pivoting movement having more than one rotating or pivoting part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)

Abstract

固定鉄心の複数の磁性鉄板のうちの一部の磁性鉄板に設けられた取り付け部を備え、駆動軸は、取り付け部が設けられた磁性鉄板に設けられた隙間を介して固定鉄心の外部に導出され、固定鉄心は、取り付け部により絶縁筐体に設けられたリブに固定されることにより、絶縁筐体に対する駆動軸の中心軸の位置が設定される。Provided with a mounting part provided on some of the magnetic iron plates of the fixed iron core, and the drive shaft is led out of the fixed iron core through a gap provided on the magnetic iron plate provided with the mounting part Then, the fixed iron core is fixed to the rib provided on the insulating casing by the attaching portion, whereby the position of the central axis of the drive shaft with respect to the insulating casing is set.

Description

この発明は、可動接点を固定接点に対して投入又は離反させる電磁操作機構を備えた気中遮断器に関するものである。   The present invention relates to an air circuit breaker provided with an electromagnetic operation mechanism for moving a movable contact to or from a fixed contact.

周知のように、固定接点と可動接点の開閉を大気中で行なう気中遮断器の一つとして、可動接点を固定接点に対して投入又は離反させるための電磁操作機構を備えた気中遮断機が存在する。   As is well known, an air circuit breaker equipped with an electromagnetic operation mechanism for turning a movable contact to or from a fixed contact as one of the air circuit breakers that opens and closes a fixed contact and a movable contact in the atmosphere. Exists.

従来の電磁操作機構を備えた気中遮断器は、例えば、固定接点を有する固定導体と、可動接点を有しこの可動接点を前記固定接点に対して投入し又は引外すよう駆動される可動子と、軸心を中心として回動可能に設けられたシャフトと、前記軸心に対して垂直方向に第１の所定距離を隔てて第１の連結部により前記シャフトに回動自在に連結されると共に前記可動子に第２の連結部により連結された操作アームと、前記第１の連結部に対し前記シャフトの周方向の異なる位置に設けられた第３の連結部により前記シャフトに連結され前記軸心に対して第２の所定距離を隔てて直交する直線上で移動するよう駆動される駆動軸を有する電磁操作手段を備え、この電磁操作手段を付勢して前記駆動軸を駆動することにより前記シャフトを回転させて前記操作アームを介して前記可動子を駆動するように構成されている(例えば、特許文献１参照)。   A conventional air circuit breaker equipped with an electromagnetic operation mechanism includes, for example, a fixed conductor having a fixed contact, and a movable element that has a movable contact and is driven so as to insert or remove the movable contact with respect to the fixed contact. And a shaft provided to be rotatable about an axis, and a first connecting portion that is pivotally connected to the shaft at a first predetermined distance in a direction perpendicular to the axis. And an operating arm connected to the mover by a second connecting portion, and a third connecting portion provided at a different position in the circumferential direction of the shaft relative to the first connecting portion and connected to the shaft. An electromagnetic operating means having a drive shaft driven so as to move on a straight line perpendicular to the axis at a second predetermined distance; and energizing the electromagnetic operating means to drive the drive shaft To rotate the shaft Via the operating arm being configured to drive the movable element (e.g., see Patent Document 1).

前述の電磁操作手段としての電磁操作機構は、固定鉄心に電磁コイルが挿入され、電磁コイルの励磁により固定鉄心に駆動軸を有する可動鉄心が吸引されるように構成されている。従来、電磁操作機構の固定鉄心は、例えば、打ち抜きにて製作された磁性鉄板を所定枚数積層して一体化することにより製作される(例えば、特許文献２参照)。   The electromagnetic operating mechanism as the electromagnetic operating means is configured such that an electromagnetic coil is inserted into a fixed iron core, and a movable iron core having a drive shaft is attracted to the fixed iron core by excitation of the electromagnetic coil. Conventionally, a fixed iron core of an electromagnetic operation mechanism is manufactured, for example, by stacking and integrating a predetermined number of magnetic iron plates manufactured by punching (see, for example, Patent Document 2).

特許第４５７８４３３号公報Japanese Patent No. 4578433 特開平６-８９８０８号公報JP-A-6-89808

特許文献１に開示された電磁操作手段としての電磁操作機構は、絶縁筐体の空間部内に設けられており、一般的には電磁操作機構の位置を固定するために、絶縁筐体に固定されるが、気中遮断器の投入に要する力は大きいため電磁操作機構の出力も大きく、固定鉄心を構成する磁性鉄板の積層枚数も多くなるので磁性鉄板の板厚の積層公差が大きくなり、絶縁筐体からの駆動軸の位置がばらつくことがある。駆動軸の位置がばらつくと、駆動軸に連結されているリンクの位置がばらついたり駆動軸が斜めになることがあり、可動接点の所定方向への十分な移動量を確保することができなくなり、最悪の場合、気中遮断器が投入不能になることがある。   The electromagnetic operation mechanism as the electromagnetic operation means disclosed in Patent Document 1 is provided in the space portion of the insulating casing, and is generally fixed to the insulating casing in order to fix the position of the electromagnetic operating mechanism. However, since the force required to put in the air circuit breaker is large, the output of the electromagnetic operating mechanism is also large, and the number of magnetic iron plates that make up the fixed iron core also increases, so the lamination tolerance of the thickness of the magnetic iron plate increases, and insulation The position of the drive shaft from the housing may vary. If the position of the drive shaft varies, the position of the link connected to the drive shaft may vary or the drive shaft may become slanted, making it impossible to secure a sufficient amount of movement of the movable contact in a predetermined direction. In the worst case, the air circuit breaker may not be turned on.

この発明は、従来の気中遮断器に於ける前述のような課題を解決するためになされたものであり、絶縁筐体に対する電磁操作機構の駆動軸の位置のばらつきが少なく、安定した投入動作を行うことができる気中遮断器を提供することを目的とする。   The present invention has been made to solve the above-mentioned problems in the conventional air circuit breaker, and there is little variation in the position of the drive shaft of the electromagnetic operation mechanism with respect to the insulating housing, and stable closing operation. An object of the present invention is to provide an air circuit breaker capable of performing the above.

この発明による気中遮断器は、
固定接点を有する固定導体と、
可動接点を有し、この可動接点を前記固定接点に対して投入し又は引外すよう駆動される可動子と、
軸心を中心として回動可能に設けられたシャフトと、
前記軸心に対して垂直方向に第１の所定距離を隔てて第１の連結部により前記シャフトに回動自在に連結されると共に、前記可動子に第２の連結部により連結された操作アームと、
前記第１の連結部に対し前記シャフトの周方向の異なる位置に設けられた第３の連結部により前記シャフトに連結され、前記軸心に対して第２の所定距離を隔てて直交する直線上で移動するよう駆動される駆動軸を有する電磁操作機構と、
を備え、
前記電磁操作機構は、
固定鉄心と、複数の磁性鉄板が積層されることにより構成され前記固定鉄心に対して移動可能に設けられた可動鉄心と、前記固定鉄心に固定され、付勢されることにより磁束を発生して前記可動鉄心を移動させる電磁コイルとを備え、
前記固定鉄心は、前記複数の磁性鉄板のうちの一部の磁性鉄板に設けられた取り付け部を備え、
前記駆動軸は、前記可動鉄心に固定され、前記取り付け部が設けられた前記磁性鉄板に設けられた隙間を介して前記固定鉄心の外部に導出されて前記シャフトに連結され、
前記固定鉄心は、前記取り付け部により絶縁筐体に設けられたリブに固定されることにより、前記絶縁筐体に対する前記駆動軸の中心軸の位置が設定されている、
ことを特徴とする。The air circuit breaker according to the present invention is
A fixed conductor having a fixed contact;
A movable element having a movable contact, and driven to be turned on or off with respect to the fixed contact;
A shaft provided so as to be rotatable about an axis;
An operation arm that is pivotally coupled to the shaft by a first coupling portion at a first predetermined distance in a direction perpendicular to the axis and is coupled to the movable element by a second coupling portion. When,
A straight line that is connected to the shaft by a third connecting part provided at a different position in the circumferential direction of the shaft with respect to the first connecting part, and is orthogonal to the axial center at a second predetermined distance. An electromagnetic operating mechanism having a drive shaft driven to move with
With
The electromagnetic operation mechanism is
A fixed iron core, a movable iron core configured by being laminated with a plurality of magnetic iron plates and movably provided with respect to the fixed iron core, fixed to the fixed iron core, and generates a magnetic flux by being energized. An electromagnetic coil for moving the movable iron core,
The fixed iron core includes a mounting portion provided on a part of the plurality of magnetic iron plates,
The drive shaft is fixed to the movable iron core, led out of the fixed iron core through a gap provided in the magnetic iron plate provided with the attachment portion, and connected to the shaft,
The position of the central axis of the drive shaft with respect to the insulating casing is set by fixing the fixed iron core to a rib provided in the insulating casing by the mounting portion.
It is characterized by that.

この発明による気中遮断器によれば、固定鉄心は、複数の磁性鉄板のうちの一部の磁性鉄板に設けられた取り付け部を備え、駆動軸は、可動鉄心に固定され、前記取り付け部が設けられた前記磁性鉄板に設けられた隙間を介して前記固定鉄心の外部に導出されて前記シャフトに連結され、前記固定鉄心は、前記取り付け部により絶縁筐体に設けられたリブに固定されることにより、前記絶縁筐体に対する前記駆動軸の中心軸の位置が設定されているので、絶縁筐体からの駆動軸の中心軸の位置のばらつきが、少なくなり、安定して投入動作を行うことができる。   According to the air circuit breaker according to the present invention, the fixed iron core includes a mounting portion provided on a part of the plurality of magnetic iron plates, the drive shaft is fixed to the movable iron core, and the mounting portion is It is led out of the fixed iron core through a gap provided in the magnetic iron plate provided and connected to the shaft, and the fixed iron core is fixed to a rib provided in the insulating casing by the mounting portion. As a result, since the position of the central axis of the drive shaft with respect to the insulating casing is set, the variation in the position of the central axis of the driving shaft from the insulating casing is reduced, and a stable closing operation is performed. Can do.

この発明の実施の形態１による気中遮断器を示す構成図である。It is a block diagram which shows the air circuit breaker by Embodiment 1 of this invention. この発明の実施の形態１による気中遮断器に於ける、電磁操作機構を示す平面図である。It is a top view which shows the electromagnetic operation mechanism in the air circuit breaker by Embodiment 1 of this invention. この発明の実施の形態１による気中遮断器に於ける、電磁操作機構を示す側面図である。It is a side view which shows the electromagnetic operation mechanism in the air circuit breaker by Embodiment 1 of this invention. この発明の実施の形態１による気中遮断器に於ける、電磁操作機構の固定状態を示す説明図である。It is explanatory drawing which shows the fixed state of the electromagnetic operation mechanism in the air circuit breaker by Embodiment 1 of this invention. この発明の実施の形態２による気中遮断器に於ける、電磁操作機構の固定状態を示す説明図である。It is explanatory drawing which shows the fixed state of the electromagnetic operation mechanism in the air circuit breaker by Embodiment 2 of this invention. この発明の実施の形態３による気中遮断器に於ける、電磁操作機構の固定状態を示す説明図である。It is explanatory drawing which shows the fixed state of the electromagnetic operating mechanism in the air circuit breaker by Embodiment 3 of this invention. 従来の気中遮断器に於ける、電磁操作機構の固定状態を示す説明図である。It is explanatory drawing which shows the fixed state of the electromagnetic operation mechanism in the conventional air circuit breaker.

実施の形態１．
以下、この発明の実施の形態１による気中遮断器を図に基づいて説明する。図１は、この発明の実施の形態１による気中遮断器を示す構成図である。図１に於いて、図１に於いて、絶縁筐体１は、内部に仕切壁１０３で仕切られた第１の空間部１０１と第２の空間部１０２を備えている。第１の固定導体２１と第２の固定導体２２は、それぞれ絶縁筐体１の外部から絶縁筐体１を貫通して第１の空間部１０１まで延び、第１の空間部１０１に露出している。第１の固定導体２１は、電源側端子とも称され、図示しない電源側導体に接続される。第２の固定導体２２は、負荷側端子とも称され、図示しない負荷側導体に接続される。絶縁筐体１の第１の空間部１０１に露出する第１の固定導体２１の端部には固定接点２１１が固定されている。Embodiment 1 FIG.
Hereinafter, an air circuit breaker according to Embodiment 1 of the present invention will be described with reference to the drawings. 1 is a block diagram showing an air circuit breaker according to Embodiment 1 of the present invention. In FIG. 1, the insulating housing 1 includes a first space portion 101 and a second space portion 102 that are partitioned by a partition wall 103 inside. The first fixed conductor 21 and the second fixed conductor 22 extend from the outside of the insulating housing 1 through the insulating housing 1 to the first space 101 and are exposed to the first space 101. Yes. The first fixed conductor 21 is also referred to as a power supply side terminal, and is connected to a power supply side conductor (not shown). The second fixed conductor 22 is also referred to as a load side terminal, and is connected to a load side conductor (not shown). A fixed contact 211 is fixed to the end of the first fixed conductor 21 exposed in the first space 101 of the insulating housing 1.

可動子３は、リンクピン４により操作アーム７の一端に回動自在に支持され、固定接点２１１に対抗する位置に可動接点３１１が固定されている。接圧ばね５は、可動接点３１１が固定接点２１１に投入されたときに両接点間に接触圧力を与えるように、可動子３をリンクピン４を中心として時計方向に回動させる方向に付勢する。可動子３と第２の固定導体２２とは、撓むことが可能な可撓導体６により電気的に接続されている。   The movable element 3 is rotatably supported at one end of the operation arm 7 by the link pin 4, and the movable contact 311 is fixed at a position facing the fixed contact 211. The contact pressure spring 5 urges the movable element 3 to rotate clockwise about the link pin 4 so as to apply a contact pressure between the two contacts when the movable contact 311 is inserted into the fixed contact 211. To do. The mover 3 and the second fixed conductor 22 are electrically connected by a flexible conductor 6 that can be bent.

絶縁筐体１の第２の空間部１０２内に設けられた板状の連結板８は、軸心９１の周りに回動可能に支持されたシャフト９に固定されている。連結板８は、仕切壁１０３に設けられた貫通孔１０３１を貫通し、その一端が連結ピン７１により操作アーム７に回動自在に連結されている。操作アーム７の他端は、リンクピン４に回動自在に連結されている。連結ピン７１による連結板８と操作アーム７の他端との連結部は、第１の連結部を構成し、この第１の連結部は、シャフト９の軸心９１に対して垂直方向に第１の所定距離を隔てている。そして、リンクピン４による操作アーム７の一端と可動子３との連結部は、第２の連結部を構成している。駆動軸１３は、第１の連結部に対しシャフト９の周方向の異なる位置で、シャフト９の軸心に対して第２の所定距離を隔てて連結板８と連結ピン８１により連結されている。連結ピン８１による駆動軸１３と連結板８の連結部は、第３の連結部を構成する。   A plate-like connecting plate 8 provided in the second space 102 of the insulating housing 1 is fixed to a shaft 9 that is rotatably supported around an axis 91. The connecting plate 8 passes through a through hole 1031 provided in the partition wall 103, and one end of the connecting plate 8 is rotatably connected to the operation arm 7 by a connecting pin 71. The other end of the operation arm 7 is rotatably connected to the link pin 4. A connecting portion between the connecting plate 8 and the other end of the operating arm 7 by the connecting pin 71 constitutes a first connecting portion, and the first connecting portion is perpendicular to the axis 91 of the shaft 9. 1 separated by a predetermined distance. And the connection part of the end of the operation arm 7 by the link pin 4 and the needle | mover 3 comprises the 2nd connection part. The drive shaft 13 is connected to the first connecting portion by a connecting plate 8 and a connecting pin 81 at a second predetermined distance from the axial center of the shaft 9 at different positions in the circumferential direction of the shaft 9. . A connecting portion between the drive shaft 13 and the connecting plate 8 by the connecting pin 81 constitutes a third connecting portion.

次に、電磁操作機構１０について説明する。図２Ａは、この発明の実施の形態１による気中遮断器に於ける、電磁操作機構を示す平面図、図２Ｂは、この発明の実施の形態１による気中遮断器に於ける、電磁操作機構を示す側面図である。図１、及び図２Ａ、図２Ｂに示すように、電磁操作機構１０は、内側空間を備えた固定鉄心１１と、固定鉄心１１の内側空間に挿入されて固定鉄心１１に固定された円筒状の電磁コイル１２と、電磁コイル１２の内側空間部１２１に挿入された可動鉄心１４と、駆動軸１３を備えている。駆動軸１３の一端は前述のように連結板８の多端に連結され、他端は可動鉄心１４に固定されている。   Next, the electromagnetic operation mechanism 10 will be described. 2A is a plan view showing an electromagnetic operation mechanism in the air circuit breaker according to Embodiment 1 of the present invention, and FIG. 2B is an electromagnetic operation in the air circuit breaker according to Embodiment 1 of the present invention. It is a side view which shows a mechanism. As shown in FIG. 1, FIG. 2A, and FIG. 2B, the electromagnetic operating mechanism 10 includes a fixed iron core 11 having an inner space and a cylindrical shape that is inserted into the inner space of the fixed iron core 11 and fixed to the fixed iron core 11. An electromagnetic coil 12, a movable iron core 14 inserted in the inner space 121 of the electromagnetic coil 12, and a drive shaft 13 are provided. One end of the drive shaft 13 is connected to the multiple ends of the connecting plate 8 as described above, and the other end is fixed to the movable iron core 14.

可動鉄心１４は、第１の部位１１Ａと、第２の部位１１Ｂと、第１の部位１１Ａと第２の部位１１Ｂとの間に配置された第３の部位１１Ｃとを備えている。第１の部位１１Ａと第２の部位１１Ｂと第３の部位１１Ｃは、それらの板厚方向に積み重ねられて一体に固定されている。   The movable iron core 14 includes a first part 11A, a second part 11B, and a third part 11C arranged between the first part 11A and the second part 11B. The first part 11A, the second part 11B, and the third part 11C are stacked in the plate thickness direction and fixed integrally.

第１の部位１１Ａと第２の部位１１Ｂは、磁性鉄板を抜きにて製作された同一形状の複数の第１の磁性鉄板１１１を、その板厚方向に積層して一体化することにより構成されている。第１の磁性鉄板１１１は、それぞれ、第１の辺部１１０１と、第１の辺部１１０１に対向する第２の辺部１１０２と、第１の辺部１１０１の一端と第２の辺部１１０２の一端とにつながる第３の辺部１１０３と、第１の辺部１１０１の他端につながる第４の辺部１１０４と、第２の辺部１１０２の他端につながる第５の辺部１１０５とを有する。第４の辺部１１０４の先端部１１０４ａと第５の辺部１１０５の先端部１１０５ａは、所定の間隔を介して対向している。   The first portion 11A and the second portion 11B are configured by stacking and integrating a plurality of first magnetic iron plates 111 having the same shape, which are manufactured by removing the magnetic iron plate, in the plate thickness direction. ing. The first magnetic iron plate 111 includes a first side 1101, a second side 1102 that faces the first side 1101, one end of the first side 1101, and a second side 1102, respectively. A third side 1103 connected to one end of the first side 1104, a fourth side 1104 connected to the other end of the first side 1101, a fifth side 1105 connected to the other end of the second side 1102, Have The front end 1104a of the fourth side 1104 and the front end 1105a of the fifth side 1105 are opposed to each other with a predetermined interval.

第３の部位１１Ｃは、磁性鉄板を抜きにて製作された複数の第２の磁性鉄板１１１ａを、その板厚方向に積層して一体化することにより構成されている。第２の磁性鉄板１１１ａは、第１の磁性鉄板１１１の第３の辺部１１０３に対応する位置から突出する第１の取り付け部１１０６と第２及び第２の取り付け部１１０７と、第１の磁性鉄板１１１の第４の辺部１１０４に対応する位置から突出する第３の取り付け部１１０８と、第１の磁性鉄板１１１の第５の辺部１１０５に対応する位置から突出する第４の取り付け部１１０９とを備えている。第１の磁性鉄板１１１の第３の辺部１１０３に対応する第２の磁性鉄板１１１ａの部位には、駆動軸１３を摺動自在に貫通させるための隙間１１１０が形成されている。   The third portion 11C is configured by laminating and integrating a plurality of second magnetic iron plates 111a produced by removing the magnetic iron plates in the plate thickness direction. The second magnetic iron plate 111a includes a first attachment portion 1106, a second attachment portion 1107, a first magnetic portion protruding from a position corresponding to the third side portion 1103 of the first magnetic iron plate 111, and a first magnetic portion. A third attachment portion 1108 protruding from a position corresponding to the fourth side 1104 of the iron plate 111 and a fourth attachment portion 1109 protruding from a position corresponding to the fifth side 1105 of the first magnetic iron plate 111. And. A gap 1110 for slidably penetrating the drive shaft 13 is formed in a portion of the second magnetic iron plate 111 a corresponding to the third side 1103 of the first magnetic iron plate 111.

図３は、この発明の実施の形態１による気中遮断器に於ける、電磁操作機構の固定状態を示す説明図である。図３に示すように、絶縁筐体１の仕切壁１０３は、その平面部から第１の空間部１０２内に垂直に延びる第１のリブ１０４１と第２のリブ１０４２を備えている。電磁操作機構１０は、固定鉄心１１が第１のリブ１０４１の先端部と第２のリブ１０４２の先端部に取り付けネジ１６により固定されることにより、絶縁筐体１に装着される。即ち、固定鉄心１１の第１の取り付け部１１０６と第２の取り付け部１１０７は、取り付けネジ１６により第１のリブ１０４１の先端部に固定され、固定鉄心１１の第３の取り付け部１１０８と第４の取り付け部１１０９は、取り付けネジ１６により第２のリブ１０４２の先端部に固定されている。   FIG. 3 is an explanatory view showing a fixed state of the electromagnetic operating mechanism in the air circuit breaker according to Embodiment 1 of the present invention. As shown in FIG. 3, the partition wall 103 of the insulating housing 1 includes a first rib 1041 and a second rib 1042 that extend vertically from the planar portion into the first space 102. The electromagnetic operating mechanism 10 is attached to the insulating housing 1 by fixing the fixed iron core 11 to the distal end portion of the first rib 1041 and the distal end portion of the second rib 1042 with a mounting screw 16. That is, the first attachment portion 1106 and the second attachment portion 1107 of the fixed iron core 11 are fixed to the tip end portion of the first rib 1041 by the attachment screw 16, and the third attachment portion 1108 and the fourth attachment portion of the fixed iron core 11 are fixed. The mounting portion 1109 is fixed to the tip end portion of the second rib 1042 by a mounting screw 16.

図２Ａに示すように、固定鉄心１１の第１の取り付け部１１０６には取り付けネジ１６を貫通させるための取り付け穴１５ａが形成され、固定鉄心１１の第２の取り付け部１１０７には取り付けネジ１６を貫通させるための取り付け穴１５ｂが形成され、固定鉄心１１の第３の取り付け部１１０８には取り付けネジ１６を貫通させるための取り付け穴１５ｃが形成され、固定鉄心１１の第４の取り付け部１１０９には取り付けネジ１６を貫通させるための取り付け穴１５ｄが形成されている。   As shown in FIG. 2A, the first attachment portion 1106 of the fixed core 11 is formed with an attachment hole 15 a for allowing the attachment screw 16 to pass therethrough, and the attachment screw 16 is attached to the second attachment portion 1107 of the fixed iron core 11. An attachment hole 15 b for penetrating is formed, an attachment hole 15 c for penetrating the attachment screw 16 is formed in the third attachment portion 1108 of the fixed iron core 11, and a fourth attachment portion 1109 of the fixed iron core 11 is formed. An attachment hole 15d for allowing the attachment screw 16 to pass therethrough is formed.

可動鉄心１４は、図１のｙ軸方向（図１の上下方向）に移動可能なように電磁コイル１２の内側空間部１２１に挿入されている。可動鉄心１４に固定された駆動軸１３は、可動鉄心１４の移動に伴って図１のｙ軸方向（図１の上下方向）の直線上で往復移動するように構成されている。   The movable iron core 14 is inserted into the inner space 121 of the electromagnetic coil 12 so as to be movable in the y-axis direction of FIG. 1 (vertical direction of FIG. 1). The drive shaft 13 fixed to the movable iron core 14 is configured to reciprocate on a straight line in the y-axis direction in FIG. 1 (up and down direction in FIG. 1) as the movable iron core 14 moves.

以上のように構成されたこの発明の実施の形態１による気中遮断器に於いて、いま、電磁コイル１２が消勢されているとすると、図２Ａに示すように、可動鉄心１４の一方の端部が固定鉄心１１の第４の辺部」１１０４と第５の辺部１１０５の内壁に当接して静止している。このとき、図１に示すように、可動接点３１１は固定接点２１１から離反した位置にあり、気中遮断器は引外し状態にある。   In the air circuit breaker according to Embodiment 1 of the present invention configured as described above, assuming that the electromagnetic coil 12 is deenergized, as shown in FIG. The end portions are in contact with the inner walls of the fourth side portion 1104 and the fifth side portion 1105 of the fixed iron core 11 and are stationary. At this time, as shown in FIG. 1, the movable contact 311 is in a position away from the fixed contact 211, and the air circuit breaker is in a tripped state.

次に、電磁コイル１２を励磁したとすると、電磁コイル１２が発生する磁束の作用により、可動鉄心１４は、図１の上方向に移動し、固定鉄心１１の第３の辺部１１０３の内壁に吸着される。これに伴い、駆動軸１３は、図１の上方向に駆動され、第３の連結部の連結ピン８１を介して連結板８をシャフト９の軸心９１を中心として図１の時計方向に回動させる。連結板８が時計方向に回動すると、操作アーム７が連結板８の長さ方向に直線状に整列するように第１の連結部の連結ピン７１を介して連結板８により駆動される。操作アーム７が前述のように駆動されると、可動子３が図１の右方に接圧バネ５を圧縮しつつ移動し、可動接点３１１が固定接点２１１に当接する。可動接点３１１と固定接点２１１が接触した後、可動子３が第２の連結部のリンクピン４を中心として時計方向へ回動することで、気中遮断器は投入状態となる。   Next, assuming that the electromagnetic coil 12 is excited, the movable iron core 14 moves upward in FIG. 1 due to the action of the magnetic flux generated by the electromagnetic coil 12, and moves to the inner wall of the third side portion 1103 of the fixed iron core 11. Adsorbed. Accordingly, the drive shaft 13 is driven upward in FIG. 1 and rotates the connecting plate 8 about the shaft center 91 of the shaft 9 via the connecting pin 81 of the third connecting portion in the clockwise direction in FIG. Move. When the connecting plate 8 rotates in the clockwise direction, the operating arm 7 is driven by the connecting plate 8 via the connecting pin 71 of the first connecting portion so as to be linearly aligned in the length direction of the connecting plate 8. When the operating arm 7 is driven as described above, the movable element 3 moves while compressing the contact pressure spring 5 to the right in FIG. 1, and the movable contact 311 contacts the fixed contact 211. After the movable contact 311 and the fixed contact 211 come into contact with each other, the mover 3 rotates clockwise around the link pin 4 of the second connecting portion, whereby the air circuit breaker is turned on.

気中遮断器は、図示していない保持機構を備えており、この保持機構により前述の投入状態が保持される。又、保持機構の保持を解くことで、前述の投入の動作とは逆向きに各部材が動作し、図１に示す引外し状態となる。   The air circuit breaker includes a holding mechanism (not shown), and the holding state is held by the holding mechanism. Further, by releasing the holding mechanism, each member operates in the opposite direction to the above-described loading operation, resulting in the tripping state shown in FIG.

前述のように構成されたこの発明の実施の形態１による気中遮断器に於いて、前述のように電磁操作機構１０は、絶縁筐体１の仕切壁１０３から駆動軸１３の中心軸線Ｘまでの距離のばらつきは、第３の部位１１Ｃを構成する第２の磁性鉄板１１１ａの板厚のばらつきの累積のみにより定まる。このため、電磁操作機構１０が大型化した場合に於いても、第１の部位１１Ａと第２の部位１１Ｂを構成する第１の磁性鉄板１１１の積層枚数に影響を受けることなく、絶縁筐体１の仕切壁１０３から駆動軸１３の中心軸の位置のばらつきが少ない電磁操作機構１０の固定が可能となる。これにより、駆動軸１３に連結されている他の部品の位置関係が安定し、安定した投入動作を行うことができる。   In the air circuit breaker according to the first embodiment of the present invention configured as described above, the electromagnetic operating mechanism 10 extends from the partition wall 103 of the insulating housing 1 to the central axis X of the drive shaft 13 as described above. Is determined only by the accumulation of variations in the thickness of the second magnetic iron plate 111a constituting the third portion 11C. For this reason, even when the electromagnetic operation mechanism 10 is enlarged, the insulating casing is not affected by the number of stacked first magnetic iron plates 111 constituting the first part 11A and the second part 11B. It is possible to fix the electromagnetic operating mechanism 10 with little variation in the position of the central axis of the drive shaft 13 from one partition wall 103. Thereby, the positional relationship of the other components connected to the drive shaft 13 is stabilized, and a stable throwing operation can be performed.

実施の形態２．
次に、この発明の実施の形態２による気中遮断器について説明する。図４は、この発明の実施の形態２による気中遮断器に於ける、電磁操作機構の固定状態を示す説明図である。図４に示すこの発明の実施の形態２による気中遮断器は、次に説明する以外の構成については、先に説明した実施の形態１による気中遮断器と実質的に同一の構成を具備し、同様の作用をするものであり、図１と同一の符号は図１と同一又は相当部分を示す。Embodiment 2. FIG.
Next, an air circuit breaker according to Embodiment 2 of the present invention will be described. FIG. 4 is an explanatory view showing a fixed state of the electromagnetic operation mechanism in the air circuit breaker according to Embodiment 2 of the present invention. The air circuit breaker according to Embodiment 2 of the present invention shown in FIG. 4 has substantially the same structure as the air circuit breaker according to Embodiment 1 described above, except for the structure described below. The same reference numerals as those in FIG. 1 denote the same or corresponding parts as those in FIG.

図４に於いて、電磁操作機構１０の固定鉄心１１を固定するための第１のリブ１０４１と第２のリブ１０４２の互いに対向する側面部に、それぞれ切欠きなどにより形成された第１の傾斜部１０５１と、第２の１０５２が形成されている。第１のリブ１０４１と第２のリブ１０４２とが対向する間隔Ｙは、固定鉄心１１のy方向の長さと実質的に同一に形成されている。固定鉄心１１は、第１のリブ１０４１と第２のリブ１０４２との対向する空間部に圧入されることで絶縁筐体１に組み付けられる。このとき、固定鉄心１１は、第１の傾斜部１０５１と、第２の傾斜部１０５２により案内されて、第１のリブ１０４１と第２のリブ１０４２との対向する空間部に圧入されるので、圧入が容易となる。   In FIG. 4, a first slope formed by a notch or the like on each of the mutually opposing side surfaces of the first rib 1041 and the second rib 1042 for fixing the fixed iron core 11 of the electromagnetic operating mechanism 10. A portion 1051 and a second 1052 are formed. The distance Y between the first rib 1041 and the second rib 1042 facing each other is formed substantially the same as the length of the fixed iron core 11 in the y direction. The fixed iron core 11 is assembled to the insulating housing 1 by being press-fitted into the space between the first rib 1041 and the second rib 1042 facing each other. At this time, the fixed iron core 11 is guided by the first inclined portion 1051 and the second inclined portion 1052, and is press-fitted into the space portion where the first rib 1041 and the second rib 1042 face each other. Press fitting becomes easy.

電磁操作機構１０の固定鉄心１１が第１のリブ１０４１、及び第２のリブ１０４２の間に圧入されることで、電磁操作機構１０の、y軸方向の位置が十分に固定される。このため、絶縁筐体１から駆動軸１３のy軸方向の位置のばらつきが更に少ない電磁操作機構１０を得ることが可能となり、駆動軸１３につながっている他の部品の位置関係が安定し、安定した投入動作を行うことができる。   The position of the electromagnetic operating mechanism 10 in the y-axis direction is sufficiently fixed by press-fitting the fixed iron core 11 of the electromagnetic operating mechanism 10 between the first rib 1041 and the second rib 1042. For this reason, it is possible to obtain the electromagnetic operating mechanism 10 with further less variation in the position of the drive shaft 13 in the y-axis direction from the insulating housing 1, and the positional relationship of other components connected to the drive shaft 13 is stabilized. A stable charging operation can be performed.

実施の形態３．
次に、この発明の実施の形態３による気中遮断器について説明する。図５は、この発明の実施の形態３による気中遮断器に於ける、電磁操作機構の固定状態を示す説明図である。図５に示すこの発明の実施の形態３による気中遮断器は、次に説明する以外の構成については、先に説明した実施の形態１による気中遮断器と実質的に同一の構成を具備し、同様の作用をするものであり、図１と同一の符号は図１と同一又は相当部分を示す。Embodiment 3 FIG.
Next, an air circuit breaker according to Embodiment 3 of the present invention will be described. FIG. 5 is an explanatory view showing a fixed state of the electromagnetic operation mechanism in the air circuit breaker according to Embodiment 3 of the present invention. The air circuit breaker according to Embodiment 3 of the present invention shown in FIG. 5 has substantially the same structure as the air circuit breaker according to Embodiment 1 described above, except for the structure described below. The same reference numerals as those in FIG. 1 denote the same or corresponding parts as those in FIG.

第１のリブ１０４１と第２のリブ１０４２と、固定鉄心１１の取り付け部１１０６、１１０７、１１０８、１１０９と、の間に非磁性体の第１のスペーサ１７１、及び第２のスペーサ１７２が挿入されている。非磁性体の第１のスペーサ１７１と第２のスペーサ１７２により、絶縁筐体１から駆動軸１３の中心軸線Ｘまでの距離の調整が可能となり、駆動軸１３につながっている他の部品の位置関係を安定させ、安定した投入動作を行うことができる。   A nonmagnetic first spacer 171 and a second spacer 172 are inserted between the first rib 1041 and the second rib 1042 and the attachment portions 1106, 1107, 1108, and 1109 of the fixed iron core 11. ing. The nonmagnetic first spacer 171 and the second spacer 172 can adjust the distance from the insulating housing 1 to the central axis X of the drive shaft 13, and positions of other components connected to the drive shaft 13. The relationship can be stabilized and a stable throwing operation can be performed.

図６は、従来の気中遮断器に於ける、電磁操作機構の固定状態を示す説明図である。従来の気中遮断器に於ける電磁操作機構１０は、固定鉄心１１を構成する積層した磁性鉄板１１００を貫通する付け穴を設け、この貫通穴に取り付けネジ１６１を貫通させて絶縁筐体１に固定していた。しかし、積層された磁性鉄板１１００の枚数が多く、磁性鉄板１１００の板厚の積層公差が大きくなり、絶縁筐体１からの駆動軸１３の中心軸線Ｘまでの位置が大きくばらつくことになる。特に、気中遮断器の投入に要する力は大きいため、電磁操作機構１０の出力も大きく、固定鉄心１１の磁性鉄板１１００の積層枚数も多くなるので、絶縁筐体１からの駆動軸１３の中心軸線Ｘまでの位置が大きくばらつくことになる。駆動軸１３の中心軸線Ｘまでの位置がばらつくと、駆動軸１３につながる他の構成部材の位置がばらついたり、駆動軸１３が移動方向に対して斜めにずれることで十分なｙ軸方向への移動量が確保できなくなり、最悪の場合、気中遮断器が投入不能になることになる。この発明の気中遮断機によれば、従来の気中遮断器に於ける前述のような課題が解消されることは明らかである。   FIG. 6 is an explanatory view showing a fixed state of the electromagnetic operation mechanism in the conventional air circuit breaker. The electromagnetic operating mechanism 10 in the conventional air circuit breaker is provided with an attachment hole that penetrates the laminated magnetic iron plate 1100 that constitutes the fixed iron core 11, and an attachment screw 161 is penetrated through the through hole to the insulating casing 1. It was fixed. However, the number of laminated magnetic iron plates 1100 is large, the lamination tolerance of the thickness of the magnetic iron plate 1100 is increased, and the position from the insulating housing 1 to the central axis X of the drive shaft 13 varies greatly. In particular, since the force required to put in the air circuit breaker is large, the output of the electromagnetic operating mechanism 10 is large, and the number of magnetic iron plates 1100 of the fixed iron core 11 is increased. Therefore, the center of the drive shaft 13 from the insulating housing 1 is increased. The position to the axis X varies greatly. If the position of the drive shaft 13 up to the central axis X varies, the positions of other components connected to the drive shaft 13 may vary, or the drive shaft 13 may be displaced obliquely with respect to the moving direction, so that sufficient y-axis direction can be achieved. The amount of movement cannot be secured, and in the worst case, the air circuit breaker cannot be turned on. According to the air circuit breaker of the present invention, it is clear that the above-mentioned problems in the conventional air circuit breaker are solved.

尚、この発明は、前述の実施の形態１から３による気中遮断器に限定されるものではなく、この発明の趣旨を逸脱しない範囲において、実施の形態１から３構成を適宜組み合わせたり、その構成に一部変形を加えたり、構成を一部省略することが可能である。   The present invention is not limited to the air circuit breaker according to the first to third embodiments described above, and the configurations of the first to third embodiments may be combined as appropriate without departing from the spirit of the present invention. It is possible to add a part of the configuration or to omit a part of the configuration.

この発明は、回路遮断器、特に気中遮断器の分野に利用することができる。   The present invention can be used in the field of circuit breakers, particularly air breakers.

１ 絶縁筐体、１０３ 仕切壁、１０４１ 第１のリブ、１０４２ 第２のリブ、１０５１、 第１の傾斜部、１０５２ 第２の傾斜部、２１ 第１の固定導体、２２ 第２の固定導体、２１１ 固定接点、３ 可動子、４ リンクピン、５ 接圧ばね、６ 可撓導体、７ 操作アーム、７１ 連結ピン、８ 連結版、８１ 連結ピン、９ シャフト、９１ 軸心、１０ 電磁操作機構、１１ 固定鉄心、１１１ 第１の磁性鉄板、１１１ａ 第２の磁性鉄板、１２ 電磁コイル、１３ 駆動軸、１４ 可動鉄心、１６ 取り付けネジ、１７１ 第１のスペーサ、１７２ 第２のスペーサ、１１０６ 第１の取り付け部、１１０７ 第２の取り付け部、１１０８ 第３の取り付け部、１１０９ 第４の第４の取り付け部。 DESCRIPTION OF SYMBOLS 1 Insulation housing | casing, 103 Partition wall, 1041 1st rib, 1042 2nd rib, 1051, 1st inclination part, 1052 2nd inclination part, 21 1st fixed conductor, 22 2nd fixed conductor, 211 fixed contact, 3 mover, 4 link pin, 5 contact pressure spring, 6 flexible conductor, 7 operation arm, 71 connection pin, 8 connection plate, 81 connection pin, 9 shaft, 91 axis, 10 electromagnetic operation mechanism, DESCRIPTION OF SYMBOLS 11 Fixed iron core, 111 1st magnetic iron plate, 111a 2nd magnetic iron plate, 12 Electromagnetic coil, 13 Drive shaft, 14 Movable iron core, 16 Mounting screw, 171 1st spacer, 172 2nd spacer, 1106 1st Attachment portion, 1107 second attachment portion, 1108 third attachment portion, 1109 fourth attachment portion.

特許文献１に開示された電磁操作手段としての電磁操作機構は、絶縁筐体の空間部内に設けられており、一般的には電磁操作機構の位置を固定するために、絶縁筐体に固定されるが、気中遮断器の投入に要する力は大きいため電磁操作機構の出力も大きく、固定鉄心を構成する磁性鉄板の積層枚数も多くなるので磁性鉄板の板厚の積層公差が大きくなり、絶縁筐体からの駆動軸の位置がばらつくことがある。駆動軸の位置がばらつくと、駆動軸に連結されているリンクピンの位置がばらついたり駆動軸が斜めになることがあり、可動接点の所定方向への十分な移動量を確保することができなくなり、最悪の場合、気中遮断器が投入不能になることがある。 The electromagnetic operation mechanism as the electromagnetic operation means disclosed in Patent Document 1 is provided in the space portion of the insulating casing, and is generally fixed to the insulating casing in order to fix the position of the electromagnetic operating mechanism. However, since the force required to put in the air circuit breaker is large, the output of the electromagnetic operating mechanism is also large, and the number of magnetic iron plates that make up the fixed iron core also increases, so the lamination tolerance of the thickness of the magnetic iron plate increases, and insulation The position of the drive shaft from the housing may vary. If the position of the drive shaft varies, the position of the link pin connected to the drive shaft may vary or the drive shaft may become slanted, making it impossible to secure a sufficient amount of movement of the movable contact in a predetermined direction. In the worst case, the air circuit breaker may not be turned on.

固定鉄心１１は、第１の部位１１Ａと、第２の部位１１Ｂと、第１の部位１１Ａと第２の部位１１Ｂとの間に配置された第３の部位１１Ｃとを備えている。第１の部位１１Ａと第２の部位１１Ｂと第３の部位１１Ｃは、それらの板厚方向に積み重ねられて一体に固定されている。 The fixed iron core 11 includes a first part 11A, a second part 11B, and a third part 11C arranged between the first part 11A and the second part 11B. The first part 11A, the second part 11B, and the third part 11C are stacked in the plate thickness direction and fixed integrally.

第３の部位１１Ｃは、磁性鉄板を抜きにて製作された複数の第２の磁性鉄板１１１ａを、その板厚方向に積層して一体化することにより構成されている。第２の磁性鉄板１１１ａは、第１の磁性鉄板１１１の第３の辺部１１０３に対応する位置から突出する第１の取り付け部１１０６と第２の取り付け部１１０７と、第１の磁性鉄板１１１の第４の辺部１１０４に対応する位置から突出する第３の取り付け部１１０８と、第１の磁性鉄板１１１の第５の辺部１１０５に対応する位置から突出する第４の取り付け部１１０９とを備えている。第１の磁性鉄板１１１の第３の辺部１１０３に対応する第２の磁性鉄板１１１ａの部位には、駆動軸１３を摺動自在に貫通させるための隙間１１１０が形成されている。 The third portion 11C is configured by laminating and integrating a plurality of second magnetic iron plates 111a produced by removing the magnetic iron plates in the plate thickness direction. The second magnetic iron plate 111 a includes a first attachment portion 1106 and a second attachment portion 1107 that protrude from a position corresponding to the third side portion 1103 of the first magnetic iron plate 111, and the first magnetic iron plate 111. A third attachment portion 1108 protruding from a position corresponding to the fourth side portion 1104 and a fourth attachment portion 1109 protruding from a position corresponding to the fifth side portion 1105 of the first magnetic iron plate 111 are provided. ing. A gap 1110 for slidably penetrating the drive shaft 13 is formed in a portion of the second magnetic iron plate 111 a corresponding to the third side 1103 of the first magnetic iron plate 111.

図３は、この発明の実施の形態１による気中遮断器に於ける、電磁操作機構の固定状態を示す説明図である。図３に示すように、絶縁筐体１の仕切壁１０３は、その平面部から第２の空間部１０２内に垂直に延びる第１のリブ１０４１と第２のリブ１０４２を備えている。電磁操作機構１０は、固定鉄心１１が第１のリブ１０４１の先端部と第２のリブ１０４２の先端部に取り付けネジ１６により固定されることにより、絶縁筐体１に装着される。即ち、固定鉄心１１の第１の取り付け部１１０６と第２の取り付け部１１０７は、取り付けネジ１６により第１のリブ１０４１の先端部に固定され、固定鉄心１１の第３の取り付け部１１０８と第４の取り付け部１１０９は、取り付けネジ１６により第２のリブ１０４２の先端部に固定されている。 FIG. 3 is an explanatory view showing a fixed state of the electromagnetic operating mechanism in the air circuit breaker according to Embodiment 1 of the present invention. As shown in FIG. 3, the partition wall 103 of the insulating housing 1 includes a first rib 1041 and a second rib 1042 that extend vertically from the planar portion into the second space 102. The electromagnetic operating mechanism 10 is attached to the insulating housing 1 by fixing the fixed iron core 11 to the distal end portion of the first rib 1041 and the distal end portion of the second rib 1042 with a mounting screw 16. That is, the first attachment portion 1106 and the second attachment portion 1107 of the fixed iron core 11 are fixed to the tip end portion of the first rib 1041 by the attachment screw 16, and the third attachment portion 1108 and the fourth attachment portion of the fixed iron core 11 are fixed. The mounting portion 1109 is fixed to the tip end portion of the second rib 1042 by a mounting screw 16.

前述のように構成されたこの発明の実施の形態１による気中遮断器に於いて、前述のように電磁操作機構１０は、絶縁筐体１の仕切壁１０３から駆動軸１３の中心軸線Ｘまでの距離のばらつきは、第３の部位１１Ｃを構成する第２の磁性鉄板１１１ａの板厚のばらつきの累積のみにより定まる。このため、電磁操作機構１０が大型化した場合に於いても、第１の部位１１Ａと第２の部位１１Ｂを構成する第１の磁性鉄板１１１の積層枚数に影響を受けることなく、絶縁筐体１の仕切壁１０３から駆動軸１３の中心軸線Ｘの距離のばらつきが少ない電磁操作機構１０の固定が可能となる。これにより、駆動軸１３に連結されている他の部品の位置関係が安定し、安定した投入動作を行うことができる。 In the air circuit breaker according to the first embodiment of the present invention configured as described above, the electromagnetic operating mechanism 10 extends from the partition wall 103 of the insulating housing 1 to the central axis X of the drive shaft 13 as described above. Is determined only by the accumulation of variations in the thickness of the second magnetic iron plate 111a constituting the third portion 11C. For this reason, even when the electromagnetic operation mechanism 10 is enlarged, the insulating casing is not affected by the number of stacked first magnetic iron plates 111 constituting the first part 11A and the second part 11B. It is possible to fix the electromagnetic operating mechanism 10 with little variation in the distance from the one partition wall 103 to the central axis X of the drive shaft 13. Thereby, the positional relationship of the other components connected to the drive shaft 13 is stabilized, and a stable throwing operation can be performed.

図４に於いて、電磁操作機構１０の固定鉄心１１を固定するための第１のリブ１０４１と第２のリブ１０４２の互いに対向する側面部に、それぞれ切欠きなどにより形成された第１の傾斜部１０５１と、第２の傾斜部１０５２が形成されている。第１のリブ１０４１と第２のリブ１０４２とが対向する間隔Ｙは、固定鉄心１１のy方向の長さと実質的に同一に形成されている。固定鉄心１１は、第１のリブ１０４１と第２のリブ１０４２との対向する空間部に圧入されることで絶縁筐体１に組み付けられる。このとき、固定鉄心１１は、第１の傾斜部１０５１と、第２の傾斜部１０５２により案内されて、第１のリブ１０４１と第２のリブ１０４２との対向する空間部に圧入されるので、圧入が容易となる。 In FIG. 4, a first slope formed by a notch or the like on each of side surfaces of the first rib 1041 and the second rib 1042 facing each other for fixing the fixed iron core 11 of the electromagnetic operating mechanism 10. A portion 1051 and a second inclined portion 1052 are formed. The distance Y between the first rib 1041 and the second rib 1042 facing each other is formed substantially the same as the length of the fixed core 11 in the y direction. The fixed iron core 11 is assembled into the insulating housing 1 by being press-fitted into the space between the first rib 1041 and the second rib 1042 facing each other. At this time, the fixed iron core 11 is guided by the first inclined portion 1051 and the second inclined portion 1052, and is press-fitted into the space portion where the first rib 1041 and the second rib 1042 face each other. Press fitting becomes easy.

１ 絶縁筐体、１０３ 仕切壁、１０４１ 第１のリブ、１０４２ 第２のリブ、１０５１ 第１の傾斜部、１０５２ 第２の傾斜部、２１ 第１の固定導体、２２ 第２の固定導体、２１１ 固定接点、３ 可動子、４ リンクピン、５ 接圧ばね、６ 可撓導体、７ 操作アーム、７１ 連結ピン、８ 連結板、８１ 連結ピン、９ シャフト、９１ 軸心、１０ 電磁操作機構、１１ 固定鉄心、１１１ 第１の磁性鉄板、１１１ａ 第２の磁性鉄板、１２ 電磁コイル、１３ 駆動軸、１４ 可動鉄心、１６ 取り付けネジ、１７１ 第１のスペーサ、１７２ 第２のスペーサ、１１０６ 第１の取り付け部、１１０７ 第２の取り付け部、１１０８ 第３の取り付け部、１１０９ 第４の取り付け部。
DESCRIPTION OF SYMBOLS 1 Insulation housing | casing, 103 Partition wall, 1041 1st rib, 1042 2nd rib, 1051 1st inclination part, 1052 2nd inclination part, 21 1st fixed conductor, 22 2nd fixed conductor, 211 Fixed contact point, 3 mover, 4 link pin, 5 contact pressure spring, 6 flexible conductor, 7 operation arm, 71 connection pin, 8 connection plate , 81 connection pin, 9 shaft, 91 axis, 10 electromagnetic operation mechanism, 11 Fixed iron core, 111 first magnetic iron plate, 111a second magnetic iron plate, 12 electromagnetic coil, 13 driving shaft, 14 movable iron core, 16 mounting screw, 171 first spacer, 172 second spacer, 1106 first mounting Department, 1107 second mounting portion, 1108 a third attachment portion, 1109 a fourth Installing with unit.

Claims (3)

固定接点を有する固定導体と、
可動接点を有し、この可動接点を前記固定接点に対して投入し又は引外すよう駆動される可動子と、
軸心を中心として回動可能に設けられたシャフトと、
前記軸心に対して垂直方向に第１の所定距離を隔てて第１の連結部により前記シャフトに回動自在に連結されると共に、前記可動子に第２の連結部により連結された操作アームと、
前記第１の連結部に対し前記シャフトの周方向の異なる位置に設けられた第３の連結部により前記シャフトに連結され、前記軸心に対して第２の所定距離を隔てて直交する直線上で移動するよう駆動される駆動軸を有する電磁操作機構と、
を備え、
前記電磁操作機構は、
固定鉄心と、複数の磁性鉄板が積層されることにより構成され前記固定鉄心に対して移動可能に設けられた可動鉄心と、前記固定鉄心に固定され、付勢されることにより磁束を発生して前記可動鉄心を移動させる電磁コイルとを備え、
前記固定鉄心は、前記複数の磁性鉄板のうちの一部の磁性鉄板に設けられた取り付け部を備え、
前記駆動軸は、前記可動鉄心に固定され、前記取り付け部が設けられた前記磁性鉄板に設けられた隙間を介して前記固定鉄心の外部に導出されて前記シャフトに連結され、
前記固定鉄心は、前記取り付け部により絶縁筐体に設けられたリブに固定されることにより、前記絶縁筐体に対する前記駆動軸の中心軸の位置が設定されている、
ことを特徴とする気中遮断器。A fixed conductor having a fixed contact;
A movable element having a movable contact, and driven to be turned on or off with respect to the fixed contact;
A shaft provided so as to be rotatable about an axis;
An operation arm that is pivotally coupled to the shaft by a first coupling portion at a first predetermined distance in a direction perpendicular to the axis and is coupled to the movable element by a second coupling portion. When,
A straight line that is connected to the shaft by a third connecting part provided at a different position in the circumferential direction of the shaft with respect to the first connecting part, and is orthogonal to the axial center at a second predetermined distance. An electromagnetic operating mechanism having a drive shaft driven to move with
With
The electromagnetic operation mechanism is
A fixed iron core, a movable iron core configured by being laminated with a plurality of magnetic iron plates and movably provided with respect to the fixed iron core, fixed to the fixed iron core, and generates a magnetic flux by being energized. An electromagnetic coil for moving the movable iron core,
The fixed iron core includes a mounting portion provided on a part of the plurality of magnetic iron plates,
The drive shaft is fixed to the movable iron core, led out of the fixed iron core through a gap provided in the magnetic iron plate provided with the attachment portion, and connected to the shaft,
The position of the central axis of the drive shaft with respect to the insulating casing is set by fixing the fixed iron core to a rib provided in the insulating casing by the mounting portion.
Air circuit breaker characterized by that. 前記リブは、所定の間隔を介して対向する一対のリブにより構成され、
前記一対のリブは、互いに対向する側の壁部に傾斜部をそれぞれ備え、
前記可動鉄心は、前記傾斜部を介して前記一対のリブの間に挿入されるように構成されている、
ことを特徴とする請求項１に記載の気中遮断器。The rib is composed of a pair of ribs opposed via a predetermined interval,
Each of the pair of ribs includes an inclined portion on a wall portion facing each other,
The movable iron core is configured to be inserted between the pair of ribs via the inclined portion.
The air circuit breaker according to claim 1. 前記固定鉄心の取り付け部は、スペーサを介して前記リブに固定されている、
ことを特徴とする請求項１又は２に記載の気中遮断器。
The mounting portion of the fixed iron core is fixed to the rib via a spacer,
The air circuit breaker according to claim 1 or 2.
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JP2016110920A (en) * 2014-12-10 2016-06-20 株式会社日立製作所 Breaker, actuator and opening/closing device

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EP3611744A1 (en) 2020-02-19
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JP6714947B2 (en) 2020-07-01
CN110462775B (en) 2022-04-19
WO2018189778A1 (en) 2018-10-18
CN110462775A (en) 2019-11-15
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TW201837952A (en) 2018-10-16
TWI662577B (en) 2019-06-11

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