WO2014109092A1 - Manual switching device for electromagnetic operation mechanism - Google Patents
Manual switching device for electromagnetic operation mechanism Download PDFInfo
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- WO2014109092A1 WO2014109092A1 PCT/JP2013/073329 JP2013073329W WO2014109092A1 WO 2014109092 A1 WO2014109092 A1 WO 2014109092A1 JP 2013073329 W JP2013073329 W JP 2013073329W WO 2014109092 A1 WO2014109092 A1 WO 2014109092A1
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- movable
- manual
- electromagnetic
- iron core
- manual opening
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- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
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- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
Definitions
- This invention relates to a manual opening / closing device of an electromagnetic operation mechanism.
- the opening / closing device that is charged and held by the attractive force of the permanent magnet manually applies a force larger than the attractive force to the movable iron core of the electromagnetic actuator in the direction to resist the attractive force in order to perform manual release from the charged and held state. It is necessary to separate the permanent magnet and the movable iron core.
- a manual opening mechanism that performs such an operation, when switching the open / close device from the closed state to the open state, the moving element is attracted to the nominal iron by the magnetic attractive force generated by the permanent magnet.
- an operation of manually pushing up the bottom surface of the shaft fixedly connected to the mover is performed to remove the mover from the nominal iron, thereby forming a gap between the movable element and the nominal iron. This gap formation increases the magnetic resistance, and the attractive force by the permanent magnet decreases rapidly. Therefore, the opening operation of the switchgear is performed by making the attractive force smaller than the repulsive force of the opening spring and the contact pressure spring. It has been broken.
- a manual opening / closing device for an electromagnetic operating mechanism is provided in a fixed core portion, a movable core portion that is disposed so as to be movable back and forth with respect to the fixed core portion, and the fixed core portion facing the movable core portion.
- a movable contact side of a vacuum valve having a fixed permanent magnet, a drive shaft coupled to the movable iron core, an electromagnetic coil disposed on the fixed iron core and moving the movable iron core back and forth, and a fixed contact and a movable contact
- An electromagnetic operating mechanism is configured by a movable shaft provided on the movable shaft and a link mechanism that connects the movable shaft to the drive shaft, and the movable iron core is attracted to the permanent magnet and moves together with the electromagnetic coil.
- a lever that has a movable suction portion that holds the pin in a closed state, a contact portion that abuts the movable suction portion on one end portion side and a manual operation portion on the other end side is formed on the fixed iron core portion.
- Manual open link A configuration is provided, the movable suction unit in abutment of the manual release link mechanism is intended to open manually the both contact away from the permanent magnet.
- the movable iron core portion in the opening / closing device that is charged and held by the attractive force of the permanent magnet, the movable iron core portion is configured to be directly separated from the permanent magnet and the portion supporting the manual opening load is fixed iron portion. Therefore, the manual opening load acts only on the fixed iron core and suppresses the range of operating force applied to the opening / closing device during the manual opening operation. The strength can be reduced.
- the fixing of the electromagnetic operating mechanism is a strong structure that can withstand the operating load force, so that the location where the manual opening operating force is applied is the same as the fixing location of the electromagnetic operating mechanism, which can reduce the required strength. . Therefore, it is not necessary to increase the strength with respect to the operating force application component, which is necessary when the conventional manual opening mechanism is provided, and the strength of the switchgear can be reduced.
- FIG. 1 shows a manual opening / closing device for an electromagnetic operating mechanism according to Embodiment 1 of the present invention, in which (a) is a front view, (b) is an enlarged front view of FIG. It is CC sectional view taken on the line of b). It is a sectional side view which shows the manual opening / closing apparatus of the electromagnetic operating mechanism in Embodiment 1 of this invention.
- FIG. 6 is a side cross-sectional view for explaining the operation process of the manual operation lever, showing a state immediately after the manual opening operation is started in the closed state of the manual opening / closing device of the electromagnetic operation mechanism in the first embodiment.
- FIG. 3 is a side cross-sectional view for explaining a state after manual opening in the manual opening / closing device of the electromagnetic operating mechanism in the first embodiment.
- FIG. 10 is a side sectional view for illustrating a process of operating a manual operation lever, showing a state immediately after a manual opening operation is started in a closed state of a manual opening / closing device of an electromagnetic operation mechanism according to a second embodiment. It is a sectional side view for demonstrating the manual opening / closing apparatus of the conventional electromagnetic operation mechanism.
- FIG. 1 is a front view showing a manual opening / closing device for an electromagnetic operating mechanism in Embodiment 1, and an enlarged view of portion A
- FIG. 2 is a side sectional view thereof. 1 and 2 both show the opening / closing device in an open state.
- the electromagnetic operating mechanism housed in the case 1 includes a rectangular fixed core (hereinafter referred to as “stator”) 3 fixed to the case 1 by a fixing plate 2, and the stator. 3 has a movable adsorption portion 4a that passes through the upper and lower frame portions and holds a movable contact 13b (described later) in a closed state at the upper portion, and is provided so that it can be moved up and down (advanced / retracted) by the drive shaft 8 at the center.
- statator rectangular fixed core
- a movable iron core (hereinafter referred to as “mover”) 4, an electromagnetic coil 56 disposed on the stator 3 for moving the mover 4 back and forth, and a movable adsorption portion 4 a of the mover 4 on the upper frame portion of the stator 3.
- the electromagnetic coil 56 includes a closing coil 5 provided so as to surround the mover 4 with a gap inside the stator 3, and an open coil wound around the closing coil 5 in the opposite direction to the closing coil 5.
- the drive shaft 8 fixedly connected to the mover 4 is connected to a three-phase shaft 10 by links 9a and 9b, and the three-phase shaft 10 includes a contact opening spring (hereinafter referred to as "main circuit spring") 15. It is connected to a movable shaft 13 c provided on the movable contact side of the vacuum valve 13 via an insulating rod 11.
- 12 is a mold frame which accommodates the vacuum valve 13
- 13a is a fixed contact of the vacuum valve 13
- 13b is a movable contact.
- the main circuit spring 15 has a function of constantly biasing both the fixed contact 13a and the movable contact 13b in the opening direction.
- the links 9a and 9b, the insulating rod 11 and the like constitute a link mechanism that connects the movable shaft 13c to the drive shaft 8.
- the switchgear is provided with a carriage 14 so that the drawer insertion operation to the switchboard is easy.
- the closing operation of the switchgear (both contacts 13a, 13b) is performed by passing a current through the closing coil 5.
- a magnetic flux is generated in a closed circuit composed of the stator 3 and the mover 4, and a magnetic attraction force is induced between the mover 4 and the stator 3 in an open state, thereby moving the coil.
- the child 4 and the drive shaft 8 are operated downward to rotate the three-phase shaft 10.
- the insulating rod 11 rises against the main circuit spring 15, closes both the contacts 13a and 13b of the vacuum valve 13, and sets the closed state in FIG.
- the closed holding of the vacuum valve 13 is performed by attracting and fixing the movable attracting portion 4a of the movable element 4 in the closed state to the stator 3 side by the magnetic attracting force of the permanent magnet 7 together with the energizing of the closing coil 5. It is realized by doing.
- the opening operation of the switchgear (both contacts 13a and 13b) is in a direction against the magnetic attractive force of the permanent magnet 7 by energizing the open coil 6.
- the switchgear is opened by performing the reverse operation to that during energization.
- the opening / closing device is provided with a manual opening device in order to perform the opening operation by a method other than the electric operation to the electromagnetic operation mechanism.
- FIG. 3 shows a manual opening / closing device of the electromagnetic operating mechanism according to the first embodiment, in which the switching device (both contacts 13a, 13b) is in a closed state immediately after the manual opening operation is started from the manual opening state.
- FIG. 4 is a side cross-sectional view for explaining the process of operating the operation lever 19, and FIG. 4 shows a state after manual opening, that is, a closed state, in the manual opening / closing device of the electromagnetic operation mechanism in the first embodiment. It is a sectional side view for demonstrating the state which the switchgear (both contact 13a, 13b) reached the opening state in response to manual opening operation.
- the manual opening device includes a movable suction portion 4a, an iron plate-like rigid receiver (contacted portion) 4b, a support base 16, a lever-like manual opening link mechanism 20, a manual opening spring 21, and the like. It is arranged in the place near.
- the rigid receiver (contacted portion) 4b is fixed to the upper surface portion of the movable suction portion 4a, and receives a load for separating the mover 4 and the permanent magnet 7 when manually opened as will be described later.
- the support base 16 is fixedly connected to the stator 3, supports the manual release link main body 20 a, and limits the operation range of the manual release link mechanism 20.
- the manual opening link mechanism 20 is supported by a pin 17 as a fulcrum at the intermediate portion of the manual opening link main body 20a, and a rigid receiver for applying a manual opening load to the rigid receiver 4b on one end side.
- a contact portion 20t that contacts 4b is formed, and a manual operation portion 20b is formed on the other end side.
- the manual operation unit 20b includes a pin 18 and a manual operation lever 19 that applies an operation force to the manual release link main body 20a.
- the manual operation lever 19 enters and exits from the notch 22a with respect to the case 1 by the pin 18. It is connected freely and retractably.
- the manual release spring 21 is provided between the support base 16 and the manual release link main body 20a so that the manual release link main body 20a does not interfere with the rigid receiver (contacted portion) 4b except during manual pulling operation. Fix it.
- the mover 4 includes a movable suction portion 4a, a rigid receiver 4b, a movable iron core body 4c through which the stator upper frame and the electromagnetic coil 56 are inserted, and the rigid receiver 4b adopts this. It is also possible to give the movable suction part 4a its function without causing the movable suction part 4a itself to be pushed up by the contact part 20t.
- the manual operation lever 19 is placed in the case 1 by a face plate 22 provided in front of the opening / closing device and a manual operation lever support 23 provided perpendicular to the case 1 when not in use. It is stored.
- the manual operation lever 19 is in the storage position shown in FIG. 2 when not in use. However, when the manual operation lever 19 starts operation for manual opening operation in the closed state of the switchgear, as shown in FIG.
- the manual operation lever 19 is pushed downward about 18 as an axis. By this depression, the manual release spring 21 contracts, and the manual operation lever 19 can be removed from the notch 22a provided in the face plate 22 and taken out to the operation position.
- the manual operation lever 19 at the operation position and serving as a power point is pushed down further.
- the manual release link main body 20a integrated with the manual operation lever 19 rotates about the pin 17, and by this rotation, the contact portion 20t of the manual release link main body 20a is brought into contact with the lower surface of the rigid receiver 4b.
- the movable body 4 and the permanent magnet 7 are separated from each other by abutting and pushing up the rigid receiver 4b upward with the portion as an action point, and an opening operation by manual operation is performed.
- a gap is forcibly formed between the mover 4 and the permanent magnet 7 so that the attractive force by the permanent magnet 7 is smaller than the repulsive force of the main circuit spring 15, which is opposite to when the closing coil 5 is energized.
- the switchgear is opened. Since the manual operation lever 19 after the manual opening operation is received by the support base 16 as shown in FIG. 4, the excessive operation force is not applied other than the fixed plate 2.
- the manual opening device in the first embodiment has a structure directly provided in the electromagnetic operation mechanism, the portion supporting the manual opening load acts only on the fixing plate 2 that is a fixing portion of the electromagnetic operation mechanism.
- the fixing of the electromagnetic operation mechanism is a strong structure that can withstand the operating load force. Therefore, making the application position of the manual opening operation force the same as the fixing position of the electromagnetic operation mechanism makes it possible to reduce the required strength. Therefore, the manual opening device does not require an increase in strength with respect to the operating force application component, which is necessary when the conventional manual opening mechanism is provided, and the strength of the opening / closing device can be reduced.
- the manual release device in the first embodiment is directly provided in the electromagnetic operation mechanism, and is configured with a short distance from the manual operation lever 19 serving as the power point to the movable element 4 serving as the action point.
- the manual release link main body 20a provided to be interlocked with the manual operation lever 19, the support base 16 that supports the manual release link main body 20a, the stator 3 that fixes the support base 16, It is limited to the rigid receiving body 4b provided fixed to the mover 4.
- the force point is the operating lever 31 and the action point is the movable element 34, so that the configuration range is longer than in the first embodiment, and the occurrence of deflection is
- the lever 31, the movable element 34, the half-moon latch 32, the carriage 37, and the frame 37 that is a fixed portion of the yoke 36 are extended over a wide range.
- the first embodiment there is an effect of reducing the total amount of deflection existing in the manual release mechanism and suppressing an increase in the operation amount required for manual release.
- the force point is the manual operation lever 19
- the fulcrum is the pin 17
- the action point is the movable suction portion 4a or the rigid receiver 4b
- the manual release link mechanism 20 acts as a lever. Therefore, compared with a structure in which an opening load is directly applied in the manual opening direction, there is an effect of reducing the manual opening operation force.
- FIG. FIG. 5 is a side cross-sectional view for explaining the operation process of the manual operation lever, showing a state immediately after the manual opening operation is started in the closed state of the manual opening / closing device of the electromagnetic operation mechanism in the second embodiment.
- the manual operation lever 19 is housed in the case 1 when not in use, similarly to the manual opening device of the electromagnetic operation opening / closing device in the first embodiment.
- the manual operation lever 19 can be pulled out to the front position to be taken out to the operation position shown in FIG.
- the manual operation lever 19 at the operation position is further pulled upward.
- the manually opened link main body 20a whose action point is located inside the fulcrum and the force point, rotates about the pin 17 and pushes the rigid receiver 4b upward, so that the mover 4 is released from the permanent magnet 7 and released. Operation is performed.
- the manual operation lever 19 Since the manual operation lever 19 is lowered by its own weight, it is automatically stored in the case 1 when not in use.
- the manual operation lever 19 When the manual operation lever 19 is housed in the case 1, the manual operation lever 19 is contacted and fixed to the inside of the face plate 22 by the restoring force of the manual release spring 21. The manual operation lever 19 is prevented from jumping out of the face plate 22 even under vibration.
- each embodiment can be appropriately modified or omitted within the scope of the invention.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
An electromagnetic operation mechanism is constituted by a fixed core, a movable core, a permanent magnet, a drive shaft connected to the movable core, an electromagnetic coil for moving the movable core forward and backward, a movable shaft for a vacuum valve, and a link mechanism for coupling the movable shaft with the drive shaft. The movable core is provided with a movable adsorbing part, which in conjunction with the electromagnetic coil, maintains the movable contact in a closed state; the fixed core has a lever-shaped manual-open link mechanism wherein an abutting part which abuts the movable adsorbing part is formed at one end and a manual operation part is formed at the other end. The manual-open link mechanism is used to separate the movable adsorbing part from the permanent magnet with the contact part so as to manually open both contacts.
Description
この発明は、電磁操作機構の手動開閉装置に関するものである。
This invention relates to a manual opening / closing device of an electromagnetic operation mechanism.
永久磁石の吸引力により投入保持する開閉装置は、投入保持状態から手動開放を行うためには、電磁アクチュエータの可動鉄心に対し、吸引力よりも大きい力を手動で吸引力に抗う方向に与え、永久磁石と可動鉄心を引き離す必要がある。
このような操作を行う手動開放機構で、開閉装置が閉極状態となっている状態から開極状態とする場合には、永久磁石により生じる磁気吸引力により呼び鉄に可動子が吸着された閉極状態で、まず可動子に固定連結されたシャフトの底面を手動で押し上げる操作を行って、可動子を呼び鉄から引き外し、可動子と呼び鉄との間にギャップを形成する。このギャップの形成により磁気抵抗が増加し永久磁石による吸引力が急激に低下するので、その吸引力を開極ばねと接圧ばねの反発力より小さくすることによって、開閉装置の開極操作が行われている。 The opening / closing device that is charged and held by the attractive force of the permanent magnet manually applies a force larger than the attractive force to the movable iron core of the electromagnetic actuator in the direction to resist the attractive force in order to perform manual release from the charged and held state. It is necessary to separate the permanent magnet and the movable iron core.
In a manual opening mechanism that performs such an operation, when switching the open / close device from the closed state to the open state, the moving element is attracted to the nominal iron by the magnetic attractive force generated by the permanent magnet. In the pole state, first, an operation of manually pushing up the bottom surface of the shaft fixedly connected to the mover is performed to remove the mover from the nominal iron, thereby forming a gap between the movable element and the nominal iron. This gap formation increases the magnetic resistance, and the attractive force by the permanent magnet decreases rapidly. Therefore, the opening operation of the switchgear is performed by making the attractive force smaller than the repulsive force of the opening spring and the contact pressure spring. It has been broken.
このような操作を行う手動開放機構で、開閉装置が閉極状態となっている状態から開極状態とする場合には、永久磁石により生じる磁気吸引力により呼び鉄に可動子が吸着された閉極状態で、まず可動子に固定連結されたシャフトの底面を手動で押し上げる操作を行って、可動子を呼び鉄から引き外し、可動子と呼び鉄との間にギャップを形成する。このギャップの形成により磁気抵抗が増加し永久磁石による吸引力が急激に低下するので、その吸引力を開極ばねと接圧ばねの反発力より小さくすることによって、開閉装置の開極操作が行われている。 The opening / closing device that is charged and held by the attractive force of the permanent magnet manually applies a force larger than the attractive force to the movable iron core of the electromagnetic actuator in the direction to resist the attractive force in order to perform manual release from the charged and held state. It is necessary to separate the permanent magnet and the movable iron core.
In a manual opening mechanism that performs such an operation, when switching the open / close device from the closed state to the open state, the moving element is attracted to the nominal iron by the magnetic attractive force generated by the permanent magnet. In the pole state, first, an operation of manually pushing up the bottom surface of the shaft fixedly connected to the mover is performed to remove the mover from the nominal iron, thereby forming a gap between the movable element and the nominal iron. This gap formation increases the magnetic resistance, and the attractive force by the permanent magnet decreases rapidly. Therefore, the opening operation of the switchgear is performed by making the attractive force smaller than the repulsive force of the opening spring and the contact pressure spring. It has been broken.
特許文献１に記述されているような、永久磁石を用いた従来の電磁操作開閉装置では、手動開放荷重を与える箇所をアクチュエータの軸下端とすると、手動開放荷重を支える箇所は、軸下端部の引外しロッドに接する台車から、ケース側面の電磁アクチュエータを固定する箇所まで広範囲に及び、手動開放荷重に耐えるための頑丈な筐体構造が開閉装置の構成に必要という問題があった。この発明は、上記のような問題点を解決するためになされたものであり、開閉装置の手動開放機構を構築するために必要な開閉装置本体の強度増加を軽減した手動開放装置を得ることを目的とするものである。
In the conventional electromagnetically operated switchgear using a permanent magnet as described in Patent Document 1, if the part to which the manual release load is applied is the lower end of the shaft of the actuator, the part that supports the manual release load is the lower end of the shaft. There is a problem that the construction of the switchgear requires a sturdy housing structure that can withstand a manual opening load in a wide range from the carriage that contacts the tripping rod to the location where the electromagnetic actuator on the side of the case is fixed. The present invention has been made to solve the above-described problems, and it is an object of the present invention to obtain a manual opening device that reduces the increase in strength of the opening / closing device body necessary for constructing a manual opening mechanism of the switching device. It is the purpose.
この発明に係わる電磁操作機構の手動開閉装置は、固定鉄心部と、この固定鉄心部に対して進退自在に配置された可動鉄心部と、この可動鉄心部に対向して上記固定鉄心部に設けられた永久磁石と、上記可動鉄心部に連結された駆動軸と、上記固定鉄心部に配置され上記可動鉄心部を進退させる電磁コイルと、固定接点と可動接点とを有する真空バルブの可動接点側に設けられた可動軸と、この可動軸を上記駆動軸に連結するリンク機構とによって電磁操作機構を構成し、上記可動鉄心部には、上記永久磁石に吸着して上記電磁コイルと共に上記可動接点を閉極状態に保持する可動吸着部を設け、上記固定鉄心部には、一端部側に上記可動吸着部と当接する当接部を形成すると共に他端部側に手動操作部を形成した梃子状の手動開放リンク機構を設け、この手動開放リンク機構の当接部で上記可動吸着部を上記永久磁石から引き離し上記両接点を手動で開放するものである。
A manual opening / closing device for an electromagnetic operating mechanism according to the present invention is provided in a fixed core portion, a movable core portion that is disposed so as to be movable back and forth with respect to the fixed core portion, and the fixed core portion facing the movable core portion. A movable contact side of a vacuum valve having a fixed permanent magnet, a drive shaft coupled to the movable iron core, an electromagnetic coil disposed on the fixed iron core and moving the movable iron core back and forth, and a fixed contact and a movable contact An electromagnetic operating mechanism is configured by a movable shaft provided on the movable shaft and a link mechanism that connects the movable shaft to the drive shaft, and the movable iron core is attracted to the permanent magnet and moves together with the electromagnetic coil. A lever that has a movable suction portion that holds the pin in a closed state, a contact portion that abuts the movable suction portion on one end portion side and a manual operation portion on the other end side is formed on the fixed iron core portion. Manual open link A configuration is provided, the movable suction unit in abutment of the manual release link mechanism is intended to open manually the both contact away from the permanent magnet.
この発明の電磁操作機構の手動開閉装置によれば、永久磁石の吸引力により投入保持する開閉装置において、可動鉄心部を永久磁石から直接引き離す構成とするとともに手動開放荷重を支える箇所を固定鉄心部に設けたので、手動開放荷重は固定鉄心部にのみ作用し且つ手動開放操作時に開閉装置に印加される操作力の範囲を抑制し、更に手動開放装置を設けるために必要であった開閉装置の強度を軽減することができるものである。
又一般に電磁操作機構の固定は、動作負荷力に耐える強固な構造であるため、手動開放操作力の印加箇所を電磁操作機構の固定箇所と同一にすることは強度所要箇所の削減を可能とする。したがって、従来の手動開放機構を設ける際に必要であった操作力印加部品に対する強度の増加が不要となり、開閉装置の強度軽減を可能とすることができる。 According to the manual opening / closing device of the electromagnetic operating mechanism of the present invention, in the opening / closing device that is charged and held by the attractive force of the permanent magnet, the movable iron core portion is configured to be directly separated from the permanent magnet and the portion supporting the manual opening load is fixed iron portion. Therefore, the manual opening load acts only on the fixed iron core and suppresses the range of operating force applied to the opening / closing device during the manual opening operation. The strength can be reduced.
In general, the fixing of the electromagnetic operating mechanism is a strong structure that can withstand the operating load force, so that the location where the manual opening operating force is applied is the same as the fixing location of the electromagnetic operating mechanism, which can reduce the required strength. . Therefore, it is not necessary to increase the strength with respect to the operating force application component, which is necessary when the conventional manual opening mechanism is provided, and the strength of the switchgear can be reduced.
又一般に電磁操作機構の固定は、動作負荷力に耐える強固な構造であるため、手動開放操作力の印加箇所を電磁操作機構の固定箇所と同一にすることは強度所要箇所の削減を可能とする。したがって、従来の手動開放機構を設ける際に必要であった操作力印加部品に対する強度の増加が不要となり、開閉装置の強度軽減を可能とすることができる。 According to the manual opening / closing device of the electromagnetic operating mechanism of the present invention, in the opening / closing device that is charged and held by the attractive force of the permanent magnet, the movable iron core portion is configured to be directly separated from the permanent magnet and the portion supporting the manual opening load is fixed iron portion. Therefore, the manual opening load acts only on the fixed iron core and suppresses the range of operating force applied to the opening / closing device during the manual opening operation. The strength can be reduced.
In general, the fixing of the electromagnetic operating mechanism is a strong structure that can withstand the operating load force, so that the location where the manual opening operating force is applied is the same as the fixing location of the electromagnetic operating mechanism, which can reduce the required strength. . Therefore, it is not necessary to increase the strength with respect to the operating force application component, which is necessary when the conventional manual opening mechanism is provided, and the strength of the switchgear can be reduced.
以下、図面に基づいて、この発明の各実施の形態を説明する。
なお、各図間において、同一符号は同一あるいは相当部分を示す。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, the same code | symbol shows the same or an equivalent part between each figure.
なお、各図間において、同一符号は同一あるいは相当部分を示す。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, the same code | symbol shows the same or an equivalent part between each figure.
実施の形態１．
この発明は、例えば電力系統の電磁操作機構搭載型開閉装置に採用される電磁操作機構の手動開閉装置に関し、以下実施の形態１における電磁操作機構の手動開閉装置を説明する。
図１は、実施の形態１における電磁操作機構の手動開閉装置を示す正面図とＡ部分の拡大図、図２はその側断面図である。なお、図１及び図２は、共に開極状態の開閉装置を示している。Embodiment 1 FIG.
The present invention relates to a manual opening / closing device of an electromagnetic operation mechanism employed in, for example, an electromagnetic operation mechanism mounting type opening / closing device of a power system, and the manual opening / closing device of an electromagnetic operation mechanism inEmbodiment 1 will be described below.
FIG. 1 is a front view showing a manual opening / closing device for an electromagnetic operating mechanism inEmbodiment 1, and an enlarged view of portion A, and FIG. 2 is a side sectional view thereof. 1 and 2 both show the opening / closing device in an open state.
この発明は、例えば電力系統の電磁操作機構搭載型開閉装置に採用される電磁操作機構の手動開閉装置に関し、以下実施の形態１における電磁操作機構の手動開閉装置を説明する。
図１は、実施の形態１における電磁操作機構の手動開閉装置を示す正面図とＡ部分の拡大図、図２はその側断面図である。なお、図１及び図２は、共に開極状態の開閉装置を示している。
The present invention relates to a manual opening / closing device of an electromagnetic operation mechanism employed in, for example, an electromagnetic operation mechanism mounting type opening / closing device of a power system, and the manual opening / closing device of an electromagnetic operation mechanism in
FIG. 1 is a front view showing a manual opening / closing device for an electromagnetic operating mechanism in
まず、図１及び図２に基づいて電磁操作機構を説明する。
図１、図２において、ケース１の中に収納された電磁操作機構は、固定板２によりケース１に固定されたロ字形の固定鉄心部（以下「固定子」という）３と、この固定子３の上下枠部を貫通し上部に可動接点１３ｂ（後述）を閉極状態に保持する可動吸着部４ａを有し中心部の駆動軸８により上下（進退）動作が可能なように設けられた可動鉄心部（以下「可動子」という）４と、固定子３に配置され可動子４を進退させる電磁コイル５６と、固定子３の上枠部に可動子４の可動吸着部４ａに対向して設けられ、この可動吸着部４ａを適宜吸着する永久磁石７等により構成され、固定子３と可動子４とにより電磁アクチュエータを構成している。
なお、電磁コイル５６は、固定子３の内部に隙間をおいて可動子４を囲うように設けられた投入コイル５と、投入コイル５の外側に投入コイル５と逆方向に巻かれた開放コイル６とにより構成されている。 First, the electromagnetic operation mechanism will be described with reference to FIGS.
1 and 2, the electromagnetic operating mechanism housed in thecase 1 includes a rectangular fixed core (hereinafter referred to as “stator”) 3 fixed to the case 1 by a fixing plate 2, and the stator. 3 has a movable adsorption portion 4a that passes through the upper and lower frame portions and holds a movable contact 13b (described later) in a closed state at the upper portion, and is provided so that it can be moved up and down (advanced / retracted) by the drive shaft 8 at the center. A movable iron core (hereinafter referred to as “mover”) 4, an electromagnetic coil 56 disposed on the stator 3 for moving the mover 4 back and forth, and a movable adsorption portion 4 a of the mover 4 on the upper frame portion of the stator 3. Provided with a permanent magnet 7 or the like that adsorbs the movable adsorption part 4a as appropriate, and the stator 3 and the movable element 4 constitute an electromagnetic actuator.
Theelectromagnetic coil 56 includes a closing coil 5 provided so as to surround the mover 4 with a gap inside the stator 3, and an open coil wound around the closing coil 5 in the opposite direction to the closing coil 5. 6.
図１、図２において、ケース１の中に収納された電磁操作機構は、固定板２によりケース１に固定されたロ字形の固定鉄心部（以下「固定子」という）３と、この固定子３の上下枠部を貫通し上部に可動接点１３ｂ（後述）を閉極状態に保持する可動吸着部４ａを有し中心部の駆動軸８により上下（進退）動作が可能なように設けられた可動鉄心部（以下「可動子」という）４と、固定子３に配置され可動子４を進退させる電磁コイル５６と、固定子３の上枠部に可動子４の可動吸着部４ａに対向して設けられ、この可動吸着部４ａを適宜吸着する永久磁石７等により構成され、固定子３と可動子４とにより電磁アクチュエータを構成している。
なお、電磁コイル５６は、固定子３の内部に隙間をおいて可動子４を囲うように設けられた投入コイル５と、投入コイル５の外側に投入コイル５と逆方向に巻かれた開放コイル６とにより構成されている。 First, the electromagnetic operation mechanism will be described with reference to FIGS.
1 and 2, the electromagnetic operating mechanism housed in the
The
可動子４と固定連結された駆動軸８は、リンク９ａ、９ｂにより三相軸１０と連結されており、三相軸１０は、接点開放ばね（以下「主回路ばね」という）１５を備えた絶縁ロッド１１を介して真空バルブ１３の可動接点側に設けられた可動軸１３ｃと連結されている。なお、１２は真空バルブ１３を収納したモールドフレーム、１３ａは真空バルブ１３の固定接点、１３ｂは可動接点である。
主回路ばね１５は、固定接点１３ａと可動接点１３ｂの両接点を常時開方向に附勢する機能を有している。
リンク９ａ、９ｂ、絶縁ロッド１１等は、可動軸１３ｃを駆動軸８に連結するリンク機構を構成している。
開閉装置は、配電盤への引出挿入操作が容易となるように台車１４が設けられている。 Thedrive shaft 8 fixedly connected to the mover 4 is connected to a three-phase shaft 10 by links 9a and 9b, and the three-phase shaft 10 includes a contact opening spring (hereinafter referred to as "main circuit spring") 15. It is connected to a movable shaft 13 c provided on the movable contact side of the vacuum valve 13 via an insulating rod 11. In addition, 12 is a mold frame which accommodates the vacuum valve 13, 13a is a fixed contact of the vacuum valve 13, and 13b is a movable contact.
Themain circuit spring 15 has a function of constantly biasing both the fixed contact 13a and the movable contact 13b in the opening direction.
The links 9a and 9b, the insulating rod 11 and the like constitute a link mechanism that connects the movable shaft 13c to the drive shaft 8.
The switchgear is provided with acarriage 14 so that the drawer insertion operation to the switchboard is easy.
主回路ばね１５は、固定接点１３ａと可動接点１３ｂの両接点を常時開方向に附勢する機能を有している。
リンク９ａ、９ｂ、絶縁ロッド１１等は、可動軸１３ｃを駆動軸８に連結するリンク機構を構成している。
開閉装置は、配電盤への引出挿入操作が容易となるように台車１４が設けられている。 The
The
The
The switchgear is provided with a
次に、電磁コイル５６、すなわち投入コイル５と開放コイル６とによる開閉装置の開閉極動作を説明する。
図２における開閉装置の開極状態において、開閉装置（両接点１３ａ、１３ｂ）の閉極動作は、投入コイル５に電流を通電させることで行う。
この投入コイル５への通電により固定子３と可動子４で構成される閉路に磁束を発生させ、開極状態にある可動子４と固定子３間に磁気吸引力を誘起させることで、可動子４および駆動軸８を下方向に作動させ、三相軸１０を回動する。
この三相軸１０の回動により絶縁ロッド１１が主回路ばね１５に抗して上昇し真空バルブ１３の両接点１３ａ、１３ｂを閉じ図３の閉極状態とする。
このように、真空バルブ１３の閉極保持は、投入コイル５の付勢と共に永久磁石７の磁気吸着力により、閉極状態にある可動子４の可動吸着部４ａを固定子３側に吸着固定することで実現している。 Next, the switching pole operation of the switching device by theelectromagnetic coil 56, that is, the closing coil 5 and the opening coil 6, will be described.
In the open state of the switchgear in FIG. 2, the closing operation of the switchgear (both contacts 13a, 13b) is performed by passing a current through the closing coil 5.
By energizing theclosing coil 5, a magnetic flux is generated in a closed circuit composed of the stator 3 and the mover 4, and a magnetic attraction force is induced between the mover 4 and the stator 3 in an open state, thereby moving the coil. The child 4 and the drive shaft 8 are operated downward to rotate the three-phase shaft 10.
By the rotation of the three-phase shaft 10, the insulating rod 11 rises against the main circuit spring 15, closes both the contacts 13a and 13b of the vacuum valve 13, and sets the closed state in FIG.
Thus, the closed holding of thevacuum valve 13 is performed by attracting and fixing the movable attracting portion 4a of the movable element 4 in the closed state to the stator 3 side by the magnetic attracting force of the permanent magnet 7 together with the energizing of the closing coil 5. It is realized by doing.
図２における開閉装置の開極状態において、開閉装置（両接点１３ａ、１３ｂ）の閉極動作は、投入コイル５に電流を通電させることで行う。
この投入コイル５への通電により固定子３と可動子４で構成される閉路に磁束を発生させ、開極状態にある可動子４と固定子３間に磁気吸引力を誘起させることで、可動子４および駆動軸８を下方向に作動させ、三相軸１０を回動する。
この三相軸１０の回動により絶縁ロッド１１が主回路ばね１５に抗して上昇し真空バルブ１３の両接点１３ａ、１３ｂを閉じ図３の閉極状態とする。
このように、真空バルブ１３の閉極保持は、投入コイル５の付勢と共に永久磁石７の磁気吸着力により、閉極状態にある可動子４の可動吸着部４ａを固定子３側に吸着固定することで実現している。 Next, the switching pole operation of the switching device by the
In the open state of the switchgear in FIG. 2, the closing operation of the switchgear (both
By energizing the
By the rotation of the three-
Thus, the closed holding of the
次に、図３における開閉装置の閉極状態において、開閉装置（両接点１３ａ、１３ｂ）の開極動作は、開放コイル６に電流を通電させることで、永久磁石７の磁気吸着力に逆らう方向に起磁力を与え、可動子４の可動吸着部４ａと永久磁石７の間にギャップを形成し、永久磁石７による吸引力を主回路ばね１５の反発力より小さくすることで、投入コイル５の通電の時とは逆の動作をして開閉装置を開極状態にするものである。
Next, in the closing state of the switchgear in FIG. 3, the opening operation of the switchgear (both contacts 13a and 13b) is in a direction against the magnetic attractive force of the permanent magnet 7 by energizing the open coil 6. Is provided between the movable attracting portion 4a of the mover 4 and the permanent magnet 7, and the attractive force of the permanent magnet 7 is made smaller than the repulsive force of the main circuit spring 15, thereby The switchgear is opened by performing the reverse operation to that during energization.
通常、開閉装置には、電磁操作機構への電気的な操作以外の方法で開極操作を行うために、手動開放装置が設けられている。
Usually, the opening / closing device is provided with a manual opening device in order to perform the opening operation by a method other than the electric operation to the electromagnetic operation mechanism.
図３は、実施の形態１における電磁操作機構の手動開閉装置において、手動開放前から手動開放操作開始直後の状態、すなわち、開閉装置（両接点１３ａ、１３ｂ）が閉極状態にある状態から手動操作レバー１９を操作している過程を説明するための側断面図、図４は、実施の形態１における電磁操作機構の手動開閉装置において、手動開放後の状態、すなわち、閉極状態にあった開閉装置（両接点１３ａ、１３ｂ）が手動開放操作を受け開極状態に至った状態を説明するための側断面図である。
FIG. 3 shows a manual opening / closing device of the electromagnetic operating mechanism according to the first embodiment, in which the switching device (both contacts 13a, 13b) is in a closed state immediately after the manual opening operation is started from the manual opening state. FIG. 4 is a side cross-sectional view for explaining the process of operating the operation lever 19, and FIG. 4 shows a state after manual opening, that is, a closed state, in the manual opening / closing device of the electromagnetic operation mechanism in the first embodiment. It is a sectional side view for demonstrating the state which the switchgear (both contact 13a, 13b) reached the opening state in response to manual opening operation.
以下、実施の形態１における手動開放装置とその動作を図１～図４に基づいて説明する。
手動開放装置は、可動吸着部４ａ、鉄製板状の剛性受け体（被当接部）４ｂ、支持ベース１６、梃子状の手動開放リンク機構２０、手動開放ばね２１等により構成され、固定子３に近い箇所に配置されている。 Hereinafter, the manual opening device and its operation in the first embodiment will be described with reference to FIGS.
The manual opening device includes amovable suction portion 4a, an iron plate-like rigid receiver (contacted portion) 4b, a support base 16, a lever-like manual opening link mechanism 20, a manual opening spring 21, and the like. It is arranged in the place near.
手動開放装置は、可動吸着部４ａ、鉄製板状の剛性受け体（被当接部）４ｂ、支持ベース１６、梃子状の手動開放リンク機構２０、手動開放ばね２１等により構成され、固定子３に近い箇所に配置されている。 Hereinafter, the manual opening device and its operation in the first embodiment will be described with reference to FIGS.
The manual opening device includes a
なお、剛性受け体（被当接部）４ｂは、可動吸着部４ａの上面部に固着され、後述するように手動開放時に可動子４と永久磁石７を引き離すための荷重を受ける。
支持ベース１６は、固定子３に固定接続され、手動開放リンク本体部２０ａを支持するとともに手動開放リンク機構２０の動作範囲を制限する。 The rigid receiver (contacted portion) 4b is fixed to the upper surface portion of themovable suction portion 4a, and receives a load for separating the mover 4 and the permanent magnet 7 when manually opened as will be described later.
Thesupport base 16 is fixedly connected to the stator 3, supports the manual release link main body 20 a, and limits the operation range of the manual release link mechanism 20.
支持ベース１６は、固定子３に固定接続され、手動開放リンク本体部２０ａを支持するとともに手動開放リンク機構２０の動作範囲を制限する。 The rigid receiver (contacted portion) 4b is fixed to the upper surface portion of the
The
手動開放リンク機構２０は、手動開放リンク本体部２０ａの中間部が支持ベース１６に支点となるピン１７によって軸支され、一端部側に、剛性受け体４ｂに手動開放荷重を与えるため剛性受け体４ｂと当接する当接部２０ｔが形成され、他端部側に、手動操作部２０ｂが形成されている。
なお、手動操作部２０ｂは、ピン１８と、手動開放リンク本体部２０ａに操作力を与える手動操作レバー１９とにより構成され、手動操作レバー１９は、ピン１８によりケース１に対し切欠き２２ａから出入り自在且つ収納自在に接続されている。 The manualopening link mechanism 20 is supported by a pin 17 as a fulcrum at the intermediate portion of the manual opening link main body 20a, and a rigid receiver for applying a manual opening load to the rigid receiver 4b on one end side. A contact portion 20t that contacts 4b is formed, and a manual operation portion 20b is formed on the other end side.
Themanual operation unit 20b includes a pin 18 and a manual operation lever 19 that applies an operation force to the manual release link main body 20a. The manual operation lever 19 enters and exits from the notch 22a with respect to the case 1 by the pin 18. It is connected freely and retractably.
なお、手動操作部２０ｂは、ピン１８と、手動開放リンク本体部２０ａに操作力を与える手動操作レバー１９とにより構成され、手動操作レバー１９は、ピン１８によりケース１に対し切欠き２２ａから出入り自在且つ収納自在に接続されている。 The manual
The
手動開放ばね２１は、支持ベース１６と手動開放リンク本体部２０ａの間に設けられ手動引き外し操作時以外に手動開放リンク本体部２０ａを剛性受け体（被当接部）４ｂと干渉しない位置に固定する。
可動子４は、可動吸着部４ａと、剛性受け体４ｂと、固定子上枠部及び電磁コイル５６を挿通する可動鉄心本体４ｃなどにより構成されており、剛性受け体４ｂは、これを採用することなく可動吸着部４aにその機能を持たせ、可動吸着部４a自体が当接部２０ｔで押し上げられるようにすることも可能である。 Themanual release spring 21 is provided between the support base 16 and the manual release link main body 20a so that the manual release link main body 20a does not interfere with the rigid receiver (contacted portion) 4b except during manual pulling operation. Fix it.
Themover 4 includes a movable suction portion 4a, a rigid receiver 4b, a movable iron core body 4c through which the stator upper frame and the electromagnetic coil 56 are inserted, and the rigid receiver 4b adopts this. It is also possible to give the movable suction part 4a its function without causing the movable suction part 4a itself to be pushed up by the contact part 20t.
可動子４は、可動吸着部４ａと、剛性受け体４ｂと、固定子上枠部及び電磁コイル５６を挿通する可動鉄心本体４ｃなどにより構成されており、剛性受け体４ｂは、これを採用することなく可動吸着部４aにその機能を持たせ、可動吸着部４a自体が当接部２０ｔで押し上げられるようにすることも可能である。 The
The
次に動作について説明する。
手動操作レバー１９は、図２に示すように、非使用時は開閉装置の正面に設けられたフェースプレート２２と、ケース１に垂直に設けられた手動操作レバー用支え２３により、ケース１内に収納されている。 Next, the operation will be described.
As shown in FIG. 2, themanual operation lever 19 is placed in the case 1 by a face plate 22 provided in front of the opening / closing device and a manual operation lever support 23 provided perpendicular to the case 1 when not in use. It is stored.
手動操作レバー１９は、図２に示すように、非使用時は開閉装置の正面に設けられたフェースプレート２２と、ケース１に垂直に設けられた手動操作レバー用支え２３により、ケース１内に収納されている。 Next, the operation will be described.
As shown in FIG. 2, the
このように手動操作レバー１９は、非使用時、図２に示す収納位置にあるが、開閉装置の閉極状態において手動開放の操作のため使用開始する時は、図３に示すように、ピン１８を軸にして手動操作レバー１９を下方向に押し下げる。この押し下げにより手動開放ばね２１が収縮し、手動操作レバー１９はフェースプレート２２に設けた切欠き２２ａから抜け出し、操作位置に取り出すことが可能となる。
As described above, the manual operation lever 19 is in the storage position shown in FIG. 2 when not in use. However, when the manual operation lever 19 starts operation for manual opening operation in the closed state of the switchgear, as shown in FIG. The manual operation lever 19 is pushed downward about 18 as an axis. By this depression, the manual release spring 21 contracts, and the manual operation lever 19 can be removed from the notch 22a provided in the face plate 22 and taken out to the operation position.
手動開放を行うためには、操作位置にあって力点となる手動操作レバー１９を、さらに下方向に押し下げる。これにより、手動操作レバー１９と一体状態の手動開放リンク本体部２０ａがピン１７を中心に回動し、この回動により手動開放リンク本体部２０ａの当接部２０ｔが剛性受け体４ｂの下面に当接し、当該部を作用点として剛性受け体４ｂを上方向に押し上げることで可動子４と永久磁石７を引き離し、手動操作による開放動作を行う。
In order to perform manual release, the manual operation lever 19 at the operation position and serving as a power point is pushed down further. As a result, the manual release link main body 20a integrated with the manual operation lever 19 rotates about the pin 17, and by this rotation, the contact portion 20t of the manual release link main body 20a is brought into contact with the lower surface of the rigid receiver 4b. The movable body 4 and the permanent magnet 7 are separated from each other by abutting and pushing up the rigid receiver 4b upward with the portion as an action point, and an opening operation by manual operation is performed.
すなわち、可動子４と永久磁石７の間に強制的にギャップを形成し、永久磁石７による吸引力を主回路ばね１５の反発力より小さくすることで、投入コイル５の通電の時とは逆の動作をして開閉装置を開極状態にするものである。
なお、手動開放操作後の手動操作レバー１９は、図４に示すように支持ベース１６により受け止められるため、余剰操作力は固定板２の他に印加されない構造になっている。 In other words, a gap is forcibly formed between themover 4 and the permanent magnet 7 so that the attractive force by the permanent magnet 7 is smaller than the repulsive force of the main circuit spring 15, which is opposite to when the closing coil 5 is energized. Thus, the switchgear is opened.
Since themanual operation lever 19 after the manual opening operation is received by the support base 16 as shown in FIG. 4, the excessive operation force is not applied other than the fixed plate 2.
なお、手動開放操作後の手動操作レバー１９は、図４に示すように支持ベース１６により受け止められるため、余剰操作力は固定板２の他に印加されない構造になっている。 In other words, a gap is forcibly formed between the
Since the
実施の形態１における手動開放装置は、電磁操作機構に直接設けられた構造であるため、手動開放荷重を支える箇所が電磁操作機構の固定部である固定板２にのみ作用する。
電磁操作機構の固定は、動作負荷力に耐える強固な構造であるため、手動開放操作力の印加箇所を電磁操作機構の固定箇所と同一にすることは、強度所要箇所の削減を可能とする。ゆえに、手動開放装置は、従来の手動開放機構を設ける際に必要であった操作力印加部品に対する強度の増加が不要となり、開閉装置の強度軽減が可能となる。 Since the manual opening device in the first embodiment has a structure directly provided in the electromagnetic operation mechanism, the portion supporting the manual opening load acts only on the fixingplate 2 that is a fixing portion of the electromagnetic operation mechanism.
The fixing of the electromagnetic operation mechanism is a strong structure that can withstand the operating load force. Therefore, making the application position of the manual opening operation force the same as the fixing position of the electromagnetic operation mechanism makes it possible to reduce the required strength. Therefore, the manual opening device does not require an increase in strength with respect to the operating force application component, which is necessary when the conventional manual opening mechanism is provided, and the strength of the opening / closing device can be reduced.
電磁操作機構の固定は、動作負荷力に耐える強固な構造であるため、手動開放操作力の印加箇所を電磁操作機構の固定箇所と同一にすることは、強度所要箇所の削減を可能とする。ゆえに、手動開放装置は、従来の手動開放機構を設ける際に必要であった操作力印加部品に対する強度の増加が不要となり、開閉装置の強度軽減が可能となる。 Since the manual opening device in the first embodiment has a structure directly provided in the electromagnetic operation mechanism, the portion supporting the manual opening load acts only on the fixing
The fixing of the electromagnetic operation mechanism is a strong structure that can withstand the operating load force. Therefore, making the application position of the manual opening operation force the same as the fixing position of the electromagnetic operation mechanism makes it possible to reduce the required strength. Therefore, the manual opening device does not require an increase in strength with respect to the operating force application component, which is necessary when the conventional manual opening mechanism is provided, and the strength of the opening / closing device can be reduced.
又、実施の形態１における手動開放装置は、電磁操作機構に直接設けられており、力点となる手動操作レバー１９から作用点となる可動子４まで短距離で構成されているため、手動開放操作力によるたわみが生じる箇所は、手動操作レバー１９と連動するように設けられた手動開放リンク本体部２０ａ、この手動開放リンク本体部２０ａを支える支持ベース１６、支持ベース１６を固定する固定子３、可動子４に固定して設けられた剛性受け体４ｂに限定される。
In addition, the manual release device in the first embodiment is directly provided in the electromagnetic operation mechanism, and is configured with a short distance from the manual operation lever 19 serving as the power point to the movable element 4 serving as the action point. Where the deflection due to the force occurs, the manual release link main body 20a provided to be interlocked with the manual operation lever 19, the support base 16 that supports the manual release link main body 20a, the stator 3 that fixes the support base 16, It is limited to the rigid receiving body 4b provided fixed to the mover 4.
一方、図６に示した従来例においては、力点が操作レバー３１であり、作用点が可動子３４となるため、実施の形態１よりも構成範囲は長距離となり、たわみの発生箇所は、操作レバー３１、可動子３４、半月ラッチ３２、台車３７、およびヨーク３６の固定箇所であるフレーム３７まで広範囲に及ぶ。これに対し実施の形態１によれば手動開放機構に存在するたわみの総量を軽減し、手動開放に要する操作量の増加を抑制する効果がある。
On the other hand, in the conventional example shown in FIG. 6, the force point is the operating lever 31 and the action point is the movable element 34, so that the configuration range is longer than in the first embodiment, and the occurrence of deflection is The lever 31, the movable element 34, the half-moon latch 32, the carriage 37, and the frame 37 that is a fixed portion of the yoke 36 are extended over a wide range. On the other hand, according to the first embodiment, there is an effect of reducing the total amount of deflection existing in the manual release mechanism and suppressing an increase in the operation amount required for manual release.
又、実施の形態１における手動開放装置は、力点が手動操作レバー１９、支点がピン１７、作用点が可動吸着部４ａ又は剛性受け体４ｂであり、手動開放リンク機構２０は、梃子として作用するため、手動開放方向に直接開放荷重を与える構造と比較して、手動開放操作力を軽減する効果がある。
Further, in the manual release device in the first embodiment, the force point is the manual operation lever 19, the fulcrum is the pin 17, the action point is the movable suction portion 4a or the rigid receiver 4b, and the manual release link mechanism 20 acts as a lever. Therefore, compared with a structure in which an opening load is directly applied in the manual opening direction, there is an effect of reducing the manual opening operation force.
実施の形態２．
図５は、実施の形態２における電磁操作機構の手動開閉装置の閉極状態において、手動開放操作開始直後の状態を示し、手動操作レバーの操作過程を説明するための側断面図である。Embodiment 2. FIG.
FIG. 5 is a side cross-sectional view for explaining the operation process of the manual operation lever, showing a state immediately after the manual opening operation is started in the closed state of the manual opening / closing device of the electromagnetic operation mechanism in the second embodiment.
図５は、実施の形態２における電磁操作機構の手動開閉装置の閉極状態において、手動開放操作開始直後の状態を示し、手動操作レバーの操作過程を説明するための側断面図である。
FIG. 5 is a side cross-sectional view for explaining the operation process of the manual operation lever, showing a state immediately after the manual opening operation is started in the closed state of the manual opening / closing device of the electromagnetic operation mechanism in the second embodiment.
以下、図５に基づいて実施の形態２における電磁操作機構の手動開閉装置を説明する。
実施の形態１における電磁操作開閉装置の手動開放装置と同様に手動操作レバー１９は、非使用時にケース１内に収納されている。
手動開放操作をする時は、手動操作レバー１９を手前方向に引出すことにより図５に示される操作位置に取り出すことが可能となる。
手動開放のためには、操作位置にある手動操作レバー１９を更に上方向に引き上げる。これによって作用点が支点と力点との内側に位置する手動開放リンク本体部２０ａがピン１７を中心に回転し、剛性受け体４ｂを上方向に押し上げるので可動子４が永久磁石７から引き離され開放動作が行われる。
手動操作レバー１９は、自重で下方向に下がるため、非使用時はケース１内に自動的に収納される。
手動操作レバー１９がケース１内部に収納されている状態において、手動開放ばね２１の復元力により手動操作レバー１９がフェースプレート２２の内側に接触固定されることで、遮断器の開閉動作時に発生する振動を受けても手動操作レバー１９がフェースプレート２２の外に飛び出すことが防止されている。 Hereinafter, the manual opening / closing device of the electromagnetic operation mechanism according to the second embodiment will be described with reference to FIG.
Themanual operation lever 19 is housed in the case 1 when not in use, similarly to the manual opening device of the electromagnetic operation opening / closing device in the first embodiment.
When the manual opening operation is performed, themanual operation lever 19 can be pulled out to the front position to be taken out to the operation position shown in FIG.
For manual release, themanual operation lever 19 at the operation position is further pulled upward. As a result, the manually opened link main body 20a, whose action point is located inside the fulcrum and the force point, rotates about the pin 17 and pushes the rigid receiver 4b upward, so that the mover 4 is released from the permanent magnet 7 and released. Operation is performed.
Since themanual operation lever 19 is lowered by its own weight, it is automatically stored in the case 1 when not in use.
When themanual operation lever 19 is housed in the case 1, the manual operation lever 19 is contacted and fixed to the inside of the face plate 22 by the restoring force of the manual release spring 21. The manual operation lever 19 is prevented from jumping out of the face plate 22 even under vibration.
実施の形態１における電磁操作開閉装置の手動開放装置と同様に手動操作レバー１９は、非使用時にケース１内に収納されている。
手動開放操作をする時は、手動操作レバー１９を手前方向に引出すことにより図５に示される操作位置に取り出すことが可能となる。
手動開放のためには、操作位置にある手動操作レバー１９を更に上方向に引き上げる。これによって作用点が支点と力点との内側に位置する手動開放リンク本体部２０ａがピン１７を中心に回転し、剛性受け体４ｂを上方向に押し上げるので可動子４が永久磁石７から引き離され開放動作が行われる。
手動操作レバー１９は、自重で下方向に下がるため、非使用時はケース１内に自動的に収納される。
手動操作レバー１９がケース１内部に収納されている状態において、手動開放ばね２１の復元力により手動操作レバー１９がフェースプレート２２の内側に接触固定されることで、遮断器の開閉動作時に発生する振動を受けても手動操作レバー１９がフェースプレート２２の外に飛び出すことが防止されている。 Hereinafter, the manual opening / closing device of the electromagnetic operation mechanism according to the second embodiment will be described with reference to FIG.
The
When the manual opening operation is performed, the
For manual release, the
Since the
When the
なお、この発明は、その発明の範囲内において、各実施の形態を適宜、変形、省略することが可能である。
In the present invention, each embodiment can be appropriately modified or omitted within the scope of the invention.
１：ケース、２：固定板、３：固定子（固定鉄心部）、
４：可動子（可動鉄心部）、４ａ：可動吸着部、
４ｂ：剛性受け体（被当接部）、４ｃ：可動鉄心本体、５６：電磁コイル、
５：投入コイル、６：開放コイル、 ７：永久磁石（呼び鉄）、
８：駆動軸、９（９ａ、９ｂ）：リンク、１０：三相軸、
１１：絶縁ロッド、１２：モールドフレーム、１３：真空バルブ、
１３ａ：固定接点、１３ｂ：可動接点、１３ｃ：可動軸、１４：台車、
１５：主回路ばね（接点開放ばね）、１６：支持ベース、１７：ピン、
１８：ピン、１９：手動操作レバー、２０：手動開放リンク機構、
２０ａ：手動開放リンク本体部、２０ｂ：手動操作部、２０ｔ：当接部、
２１：手動開放ばね、２２：フェースプレート、２２ａ：切欠き、
２３：手動操作レバー用支え、３１：操作レバー、３２：半月ラッチ、
３３：操作軸（駆動軸）、３４：可動子、３５：呼び鉄（永久磁石）、
３６：ヨーク、３７：フレーム。 1: Case, 2: Fixed plate, 3: Stator (fixed iron core),
4: Movable element (movable iron core part), 4a: Movable adsorption part,
4b: rigid receiver (contacted portion), 4c: movable core body, 56: electromagnetic coil,
5: Input coil, 6: Open coil, 7: Permanent magnet (Nominal iron),
8: Drive shaft, 9 (9a, 9b): Link, 10: Three-phase shaft,
11: Insulating rod, 12: Mold frame, 13: Vacuum valve,
13a: fixed contact, 13b: movable contact, 13c: movable shaft, 14: cart,
15: main circuit spring (contact opening spring), 16: support base, 17: pin,
18: Pin, 19: Manual operation lever, 20: Manual release link mechanism,
20a: manual opening link main body part, 20b: manual operation part, 20t: contact part,
21: Manual release spring, 22: Face plate, 22a: Notch,
23: Support for manual operation lever, 31: Operation lever, 32: Half moon latch,
33: operation shaft (drive shaft), 34: mover, 35: nominal iron (permanent magnet),
36: York, 37: Frame.
４：可動子（可動鉄心部）、４ａ：可動吸着部、
４ｂ：剛性受け体（被当接部）、４ｃ：可動鉄心本体、５６：電磁コイル、
５：投入コイル、６：開放コイル、 ７：永久磁石（呼び鉄）、
８：駆動軸、９（９ａ、９ｂ）：リンク、１０：三相軸、
１１：絶縁ロッド、１２：モールドフレーム、１３：真空バルブ、
１３ａ：固定接点、１３ｂ：可動接点、１３ｃ：可動軸、１４：台車、
１５：主回路ばね（接点開放ばね）、１６：支持ベース、１７：ピン、
１８：ピン、１９：手動操作レバー、２０：手動開放リンク機構、
２０ａ：手動開放リンク本体部、２０ｂ：手動操作部、２０ｔ：当接部、
２１：手動開放ばね、２２：フェースプレート、２２ａ：切欠き、
２３：手動操作レバー用支え、３１：操作レバー、３２：半月ラッチ、
３３：操作軸（駆動軸）、３４：可動子、３５：呼び鉄（永久磁石）、
３６：ヨーク、３７：フレーム。 1: Case, 2: Fixed plate, 3: Stator (fixed iron core),
4: Movable element (movable iron core part), 4a: Movable adsorption part,
4b: rigid receiver (contacted portion), 4c: movable core body, 56: electromagnetic coil,
5: Input coil, 6: Open coil, 7: Permanent magnet (Nominal iron),
8: Drive shaft, 9 (9a, 9b): Link, 10: Three-phase shaft,
11: Insulating rod, 12: Mold frame, 13: Vacuum valve,
13a: fixed contact, 13b: movable contact, 13c: movable shaft, 14: cart,
15: main circuit spring (contact opening spring), 16: support base, 17: pin,
18: Pin, 19: Manual operation lever, 20: Manual release link mechanism,
20a: manual opening link main body part, 20b: manual operation part, 20t: contact part,
21: Manual release spring, 22: Face plate, 22a: Notch,
23: Support for manual operation lever, 31: Operation lever, 32: Half moon latch,
33: operation shaft (drive shaft), 34: mover, 35: nominal iron (permanent magnet),
36: York, 37: Frame.
Claims (4)
- 固定鉄心部と、この固定鉄心部に対して進退自在に配置された可動鉄心部と、この可動鉄心部に対向して上記固定鉄心部に設けられた永久磁石と、上記可動鉄心部に連結された駆動軸と、上記固定鉄心部に配置され上記可動鉄心部を進退させる電磁コイルと、固定接点と可動接点とを有する真空バルブの可動接点側に設けられた可動軸と、この可動軸を上記駆動軸に連結するリンク機構とによって電磁操作機構を構成し、
上記可動鉄心部には、上記永久磁石に吸着して上記電磁コイルと共に上記可動接点を閉極状態に保持する可動吸着部を設け、上記固定鉄心部には、一端部側に上記可動吸着部と当接する当接部を形成すると共に他端部側に手動操作部を形成した梃子状の手動開放リンク機構を設け、この手動開放リンク機構の当接部で上記可動吸着部を上記永久磁石から引き離し上記両接点を手動で開放することを特徴とする電磁操作機構の手動開閉装置。 A fixed iron core, a movable iron core disposed so as to be movable back and forth with respect to the fixed iron core, a permanent magnet provided on the fixed iron core facing the movable iron core, and connected to the movable iron core. A drive shaft, an electromagnetic coil disposed on the fixed core portion and moving the movable core portion back and forth, a movable shaft provided on the movable contact side of a vacuum valve having a fixed contact and a movable contact, and the movable shaft as described above An electromagnetic operation mechanism is constituted by a link mechanism connected to the drive shaft,
The movable core portion is provided with a movable suction portion that is attracted to the permanent magnet and holds the movable contact together with the electromagnetic coil in a closed state, and the fixed core portion is provided with the movable suction portion on one end side. A lever-like manual release link mechanism is provided which forms an abutment portion that abuts and a manual operation portion is formed on the other end side. The movable adsorption portion is separated from the permanent magnet by the contact portion of the manual release link mechanism. A manual opening and closing device for an electromagnetic operating mechanism, wherein both the contacts are manually opened. - 上記手動開放リンク機構と上記固定鉄心部に設けた支持ベースとの間に、手動開放ばねを設けたことを特徴とする請求項１記載の電磁操作機構の手動開閉装置。 2. A manual opening / closing device for an electromagnetic operating mechanism according to claim 1, wherein a manual opening spring is provided between the manual opening link mechanism and a support base provided on the fixed iron core.
- 上記可動鉄心部の可動吸着部には、上記手動開放リンク機構の当接部を当接させる剛性受け体を設けたことを特徴とする請求項１記載の電磁操作機構の手動開閉装置。 2. A manual opening / closing device for an electromagnetic operating mechanism according to claim 1, wherein the movable suction portion of the movable iron core portion is provided with a rigid receiver for contacting the contact portion of the manual opening link mechanism.
- 上記手動操作部には、上記電磁操作機構の収納ケースに対し出し入れ自在に軸支された手動操作レバーを設け、この手動操作レバーを力点とし且つ上記当接部を作用点として上記可動吸着部を上記永久磁石から引き離すことを特徴とする請求項１記載の電磁操作機構の手動開閉装置。 The manual operation portion is provided with a manual operation lever that is pivotally supported so as to be freely inserted into and retracted from the storage case of the electromagnetic operation mechanism. 2. The manual opening / closing device for an electromagnetic operating mechanism according to claim 1, wherein the electromagnetic operating mechanism is separated from the permanent magnet.
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| CN110120322B (en) * | 2018-02-06 | 2021-03-09 | 浙江圣曦电气股份有限公司 | Totally enclosed low-voltage circuit breaker |
| KR20230093200A (en) * | 2018-10-08 | 2023-06-27 | 한국전력공사 | Actuator for circuit breaker using thomson coil |
| KR20230093201A (en) * | 2018-10-08 | 2023-06-27 | 한국전력공사 | Actuator for circuit breaker using thomson coil |
| KR20230095042A (en) * | 2018-10-08 | 2023-06-28 | 한국전력공사 | Actuator for circuit breaker using thomson coil |
| KR102636324B1 (en) | 2018-10-08 | 2024-02-16 | 한국전력공사 | Actuator for circuit breaker using thomson coil |
| KR102636325B1 (en) | 2018-10-08 | 2024-02-16 | 한국전력공사 | Actuator for circuit breaker using thomson coil |
| KR102636326B1 (en) | 2018-10-08 | 2024-02-16 | 한국전력공사 | Actuator for circuit breaker using thomson coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5859146B2 (en) | 2016-02-10 |
| JPWO2014109092A1 (en) | 2017-01-19 |
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