WO2003098652A1 - Insertion type circuit breaker - Google Patents

Insertion type circuit breaker Download PDF

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Publication number
WO2003098652A1
WO2003098652A1 PCT/JP2002/004943 JP0204943W WO03098652A1 WO 2003098652 A1 WO2003098652 A1 WO 2003098652A1 JP 0204943 W JP0204943 W JP 0204943W WO 03098652 A1 WO03098652 A1 WO 03098652A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
mounting base
lever
breaker body
trip
Prior art date
Application number
PCT/JP2002/004943
Other languages
French (fr)
Japanese (ja)
Inventor
Kanehiro Kawakami
Akira Ishikawa
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to EP02728105A priority Critical patent/EP1507275B1/en
Priority to JP2004506054A priority patent/JP4057010B2/en
Priority to PCT/JP2002/004943 priority patent/WO2003098652A1/en
Priority to CNB028091507A priority patent/CN1302503C/en
Priority to DE60239108T priority patent/DE60239108D1/de
Priority to TW091111259A priority patent/TWI222094B/en
Publication of WO2003098652A1 publication Critical patent/WO2003098652A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/126—Automatic release mechanisms with or without manual release actuated by dismounting of circuit breaker or removal of part of circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5866—Electric connections to or between contacts; Terminals characterised by the use of a plug and socket connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/06—Housings; Casings; Bases; Mountings
    • H01H73/08—Plug-in housings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections

Definitions

  • the present invention relates to a plug-in type circuit breaker in which a circuit breaker main body is made detachable from a mounting base. It relates to a type circuit breaker. Background art
  • FIG. 8 is a longitudinal sectional view of a main part of a conventional plug-in type circuit breaker disclosed in WO 00/27959, for example, with a breaker body inserted into a mounting base.
  • Fig. 9 is an enlarged cross-sectional view of the safety trip device constituting the plug-in type circuit breaker of Fig. 8 when it is disengaged from the tripping mechanism.
  • (A) is an enlarged side cross-section.
  • FIG. 1B is a cross-sectional view of a main part of FIG. 1A, and
  • FIG. 2C is an enlarged internal perspective view showing a fitting state of a trip rod and a case.
  • the circuit breaker body 1 has a tulip-shaped connector 3 as a connecting contact member held by a pressurizing spring 2 at a predetermined contact pressure in a case of a molded insulator.
  • a switching contact (not shown) that is electrically connected between the 6 and opens and closes the circuit through which the load current flows, an opening and closing mechanism (not shown) that opens and closes this opening and closing contact, and when an overcurrent flows in the circuit
  • a trip mechanism (not shown) for operating the opening / closing mechanism opening / closing mechanism, and a handle 1a capable of manually operating the opening / closing mechanism.
  • the mounting base 7 into which the breaker body 1 is inserted has an insertion base 8 made of molded insulating material, external conductors 9 connected to both the power supply side and the load side of the insertion base 8, and a connector 3
  • Reference numeral 11 denotes a stud cover for fixing and insulating the insertion stud 10.
  • Reference numeral 12 denotes a trip shaft forming a part of the tripping mechanism, which is urged clockwise by a spring (not shown), and is turned counterclockwise when an overcurrent flows in the circuit.
  • the opening and closing mechanism (not shown) is turned by a predetermined amount (in the direction of arrow F12).
  • trip rod 13 is a trip rod which is a tripping member.
  • One end 13a is loosely engaged with the trip shaft 12 and the other end 13b is disposed on the insertion base 8. It is in contact with the projection 8a.
  • Reference numeral 14 denotes a compression spring that urges the trip bar 13 toward the insertion base 8
  • reference numeral 15 denotes an outer periphery of the trip bar 13 and the compression spring 14.
  • the trip rod 13, compression spring 14, and case 15 constitute a safety trip unit.
  • the open / close check can be performed when the open / close contact of the breaker body 1 is closed, that is, the trip bar 13 is fixed. If the breaker body 1 is inserted into the mounting base 7 in this state, the safety trip device does not trip and an arc is generated when the connector 3 comes into contact with the insertion stud 10.
  • the safety trip device when the breaker body 1 inserted with the trip bar 13 fixed is removed, the safety trip device does not trip and the connector 3 is inserted. There is a problem that an arc is generated when separating from the arm 10.
  • the present invention has been made to solve such a problem, and it is possible to easily perform an open / close check even when the circuit breaker main body is detached from the mounting base, and to perform a state where the open / close check can be performed.
  • the safety trip device When the breaker body is inserted into the mounting base with the trip rod fixed, or when the breaker body is removed from the mounting base, the safety trip device operates as intended. The purpose is to obtain a plug-in type circuit breaker that can be used. Disclosure of the invention
  • the plug-in type circuit breaker comprises: a switching contact for opening and closing a circuit through which a load current flows; a tripping mechanism for opening the switching contact; and a connection contact member for guiding a load current to the circuit.
  • a pluggable circuit breaker comprising: a circuit breaker main body having a terminal member for connecting an external conductor and inserting and connecting the connection contact member; and a mounting base for mounting the circuit breaker main body.
  • a trip rod for operating a release mechanism, and a lever acting on the trip rod when the circuit breaker body is inserted into the mounting base or when the circuit breaker body is removed from the mounting base.
  • the hook mechanism is released before the connection contact member comes into contact with the terminal member, and the urging force of the elastic member is reduced.
  • the trip mechanism is operated to open the switching contact, and the circuit breaker body in the closed state of the switching contact is removed from the mounting base.
  • the lever acts on the trip rod based on the urging force of the elastic member to operate the tripping mechanism. Trip to open the switching contact It is equipped with a device.
  • the locking mechanism comprises: a projection engaging portion provided on the circuit breaker main body; and an arm engaging with the mounting base when the circuit breaker main body is inserted into the mounting base.
  • a projection engaging portion provided on the circuit breaker main body
  • an arm engaging with the mounting base when the circuit breaker main body is inserted into the mounting base.
  • the lever has a round portion acting on the trip rod at one end and a projection engaging the mounting base at the other end, and a pin fitted at a substantially central portion is used as a fulcrum.
  • the elastic member is used as a fulcrum.
  • center distance between the pin and the cylindrical portion is substantially the same as or larger than the center distance between the pin and the projection.
  • the connector that is the connection contact member is separated from the insertion stand that is the terminal material. Before that, the switching current can be opened to cut off the load current.
  • the contact surface of the projection with the projection engaging portion has a tapered shape.
  • FIG. 1 is a longitudinal sectional view of a main part of a plug-in type circuit breaker according to Embodiment 1 of the present invention in a state where a circuit breaker main body is removed from a mounting base.
  • FIG. 2 is a cross-sectional view of a main part of the upper surface of the circuit breaker main body of FIG.
  • FIG. 3 is an enlarged perspective view of a safety trip device of the plug-in type circuit breaker according to Embodiment 1 of the present invention.
  • FIG. 4 is a longitudinal sectional view of an essential part showing a state in which the breaker body of the plug-in type circuit breaker according to Embodiment 1 of the present invention is being inserted into the mounting base.
  • FIG. 5 is a longitudinal sectional view of a main part of the plug-in type circuit breaker according to Embodiment 1 of the present invention in a state where the circuit breaker main body is inserted into a mounting base.
  • FIG. 6 is a cross-sectional view of a main part of the upper surface of FIG.
  • FIG. 7 is a cross-sectional view of the lower surface of FIG.
  • FIG. 8 is a longitudinal sectional view of a main part of a conventional plug-in type circuit breaker in a state where a breaker body is inserted into a mounting base.
  • Fig. 9 is an enlarged cross-sectional view of the safety trip device of Fig. 8 when the engagement with the tripping mechanism is released, (a) is an enlarged side cross-sectional view, and (b) is (a). 3 is a cross-sectional view of a main part of the upper surface, and (c) is an enlarged internal perspective view showing a fitting state of a trip rod and a case. Description of reference numerals in the drawings
  • 1 is the breaker body, 1 a is the handle, 2 is the pressure spring,
  • 3 is a connector (connecting member for connection), 4 is a plug terminal, 5 is a power supply terminal, 6 is a load terminal, 7 is a mounting base, 8 is a insertion pace, 8a is an arm engagement portion, and 8b is a Lever engagement part, 9 is the outer conductor, 10 is the insertion stud (terminal member), 11 is a stud cover, 12 is a trip shaft (tripping mechanism), 15 is an intermediate actuator, 15a is a shaft, 20 is a safety trip unit, and 21 is a trip unit.
  • Rod 2 1a is a fitting hole, 2 1b is a tip, 2 2 is a lever, 2 2a is a through hole, 2 2b is a cylindrical part, 2 2c is an arm, 2 2d is a protrusion, 2 2 e is a projecting part, 23 is a twist spring, 24 is a tightening screw,
  • 25 is a bracket, 25a is a through hole, 25b is a through hole, 25c is an engagement hole, 25d is a projection engagement portion, 26 is a pin, and 30 is a lock mechanism.
  • FIG. 1 is a longitudinal sectional view of a main part of a plug-in type circuit breaker according to Embodiment 1 of the present invention in a state in which a main body of the breaker is removed from a mounting base.
  • FIG. FIG. 3 is an enlarged perspective view of a safety trip device for a plug-in type circuit breaker according to Embodiment 1 of the present invention, as viewed from the load side.
  • a circuit breaker body 1 is held in a case of a molded insulator by a predetermined contact pressure by the action of a pressure spring 2 and is a tulip-shaped connector which is a contact member for connection.
  • a trip mechanism (not shown) for operating the opening / closing mechanism opening / closing section, and a handle 1a that can manually operate the opening / closing mechanism section.
  • the mounting base 7 into which the breaker body 1 is inserted The external conductor 9 is connected to both the base 8 and the power supply side and the load side of the insertion base 8, and an insertion stud 10 which is a terminal member to be inserted and connected to the connector 3 is provided. .
  • 11 is a stud force par for fixing and insulating the plug stud 10.
  • 1 and 2 are trip shafts which form a part of the tripping mechanism and are urged counterclockwise by a spring (not shown). Turn the opening / closing mechanism (not shown) by rotating it clockwise by a predetermined amount (direction of arrow F1).
  • Reference numeral 15 denotes an intermediate actuator that rotates in the direction of arrow F2 with the shaft 15a as a fulcrum in conjunction with a trip rod 21 described later to operate the trip shaft 12.
  • reference numeral 20 denotes a safety trip device, which is used to insert the trip rod 21 for rotating the intermediate actuator 15 and the breaker body 1 into the mounting base 7 or to insert the breaker body. 1 is removed from the mounting base 7 by the lever 22 acting on the trip rod 21, the torsion spring 23 which is an elastic member for urging the lever 22, and the tightening screw 24.
  • a cylindrical portion 2 2b that is inserted into the fitting hole 21 a of the trip rod 21 is protruded at one end.
  • the arms 22 c that engage with the mounting base 7 when the circuit breaker body 1 is inserted into the mounting base 7 and the projections of the engagement holes 25 c provided in the bracket 25.
  • a projection 22d engaging with the joint 25d is physically disposed.
  • the torsion spring 23 has one end 23 a locked to the spring locking portion 25 e of the bracket 25, and the other end 23 b bent to the leper 22.
  • the lever 22 is urged in the direction of arrow F3.
  • the arm 22c engages with the mounting base 7.
  • the lever 22 rotates in the direction of arrow F 3
  • the lever 22 moves in the direction of arrow F 4 to move the trip bar 2 1.
  • the 2 lb tip acts on the middle actuator 15a.
  • the plug-in type circuit breaker provided with the safety trip device 20 configured as described above operates in a state where the breaker body 1 is removed from the mounting base 7 and the safety trip device 2 is mounted.
  • the trip rod 21 In the locked state in which the projection 2 2 d of the lever 2 2 of 0 is engaged with the projection engaging portion 25 d of the bracket 25, the trip rod 21 does not act on the intermediate actuator 15.
  • the opening / closing contact can be checked by operating the opening / closing mechanism with the handle 1a.
  • FIG. 4 is a longitudinal sectional view of a main part of the plug-in type circuit breaker according to Embodiment 1 of the present invention in a state where the circuit breaker main body is being inserted into the mount.
  • FIG. 5 is a longitudinal sectional view of a main part of the plug-in type circuit breaker according to Embodiment 1 of the present invention in a state where the main body of the breaker is inserted into a mounting base.
  • FIG. 6 is a circuit breaker of FIG.
  • FIG. 7 is a cross-sectional view of a main part of the upper surface when the main body is viewed from the load side
  • FIG. 7 is a cross-sectional view of a main part of the lower surface when the main body of the circuit breaker of FIG. 5 is viewed from the power supply side.
  • the lever 22 is moved in the direction of arrow F 9 (shown in FIG. 5) by the biasing force of the twist spring 23, and the lever 22 is attached to the lever engaging portion 8 b formed on the insertion base 7.
  • the protruding part 2 2 e of 2 comes into contact.
  • the operation of pulling out the breaker body 1 is performed in the reverse of the insertion operation described above, and when the breaker body 1 is pulled out, the breaker body 1 comes into contact with the repeller engaging portion 8b formed in the insertion pace 8.
  • the projecting portion 2 2 e of lever 2 2 in contact is twisted Spring Energized to 23, it rotates in the direction of arrow F11 (shown in Fig. 7), and the trip bar 21 moves in the direction of arrow F6 (shown in Fig. 4) to move the tip.
  • 2 1 b acts on the intermediate actuator 21, pivots about the shaft 15 a in the direction of the arrow F 7, and pivots the trip shaft 12 in the direction of the arrow F 8.
  • c is the center distance between the position of the pin 26 and the cylindrical portion 22b
  • d is the center distance between the position of the pin 26 and the protruding portion 22e.
  • the relationship is set to dc.
  • the dimensions of the projection 22 d that engages with the projection engagement portion 25 d are such that the projection 22 d is detached from the projection engagement portion 25 d when the breaker body 1 is pulled out.
  • the dimension of the projection 22 d on the side close to the pin 26 is a
  • the dimension on the side far from the pin 26 is b.
  • a and b Industrial applicability
  • the plug-in type circuit breaker of the present invention is suitable for surely opening the on-off contact when the circuit breaker body is attached to or detached from the mounting base.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

An insertion type circuit breaker comprises a trip rod (21) which actuates an on/off contactor for opening and closing a circuit carrying a load current and a trip mechanism for opening this on/off contactor, a lever (22) which acts on the trip rod (21) when a breaker main body (1) is inserted into a mount base (7) or removed from the mount base (7), an elastic member (23) which energizes this lever (22), and a lock mechanism part (30) which locks the lever (22) by resisting the energization force of the elastic member (23) when the breaker main body (1) is out of the mount base (7). Thus, this circuit breaker facilitates on/off check even when the breaker main body (1) is out of the mount base (7) and makes intrinsic trip actions when the breaker main body (1) is inside the mount base (7) with the trip rod (21) fixed, and when out of the mount base (7).

Description

明 細 書 差込型回路遮断器 技術分野  Description Plug-in type circuit breaker Technical field
この発明は、 遮断器本体を取付台に着脱可能にされた差込型回路遮断 器に関し、 特に、 着脱時に開閉接触子を開路させて負荷電流を遮断する セーフティ ト リ ップ装置を有する差込型回路遮断器に関する。 背景技術  The present invention relates to a plug-in type circuit breaker in which a circuit breaker main body is made detachable from a mounting base. It relates to a type circuit breaker. Background art
第 8 図は、 例えば W O O 1 / 2 7 9 5 9号公報に示された従来の差込 型回路遮断器の遮断器本体を取付台に差込んだ状態の要部縦断面図であ る。  FIG. 8 is a longitudinal sectional view of a main part of a conventional plug-in type circuit breaker disclosed in WO 00/27959, for example, with a breaker body inserted into a mounting base.
第 9図は、 第 8図の差込型回路遮断器を構成するセーフティ ト リ ップ 装置の引外し機構部との係合を解除した時の拡大断面図で、 （ a )は拡大 側断面図、 （ b ) は （ a ) の上面要部断面図、 （ c ) は 卜 リ ップ棒とケー スの嵌合状態を示す拡大内部斜視図である。  Fig. 9 is an enlarged cross-sectional view of the safety trip device constituting the plug-in type circuit breaker of Fig. 8 when it is disengaged from the tripping mechanism. (A) is an enlarged side cross-section. FIG. 1B is a cross-sectional view of a main part of FIG. 1A, and FIG. 2C is an enlarged internal perspective view showing a fitting state of a trip rod and a case.
第 8 図において、 遮断器本体 1 は成形絶縁物のケースの中に加圧ばね 2 によ り所定の接触圧力によって保持される接続用接触部材であるチュ ーリ ップ形状のコネク タ 3が取付けられた電濾側及び負荷側の端子接続 用部材である差込端子 4、 差込端子 4 の夫々に取付けられた電源側端子 5及ぴ負荷側端子 6、 電源側端子 5 と負荷側端子 6間に電気的に接続さ れ、 負荷電流が流れる回路を開閉する開閉接触子 （図示しない）、 この開 閉接触子を開閉させる開閉機構部 （図示しない）、 回路に過電流が流れた 時、 この開閉機構開閉部を動作させる引外し機構部 （図示しない）、 及び 手動によ り 、 開閉機構部を操作するこ とができるハン ドル 1 a を備えて レヽる。 In FIG. 8, the circuit breaker body 1 has a tulip-shaped connector 3 as a connecting contact member held by a pressurizing spring 2 at a predetermined contact pressure in a case of a molded insulator. The plug-in terminal 4, which is the attached terminal for the filter and load terminals, the power supply terminal 5 and the load terminal 6, the power supply terminal 5, and the load terminal connected to the plug-in terminal 4, respectively. A switching contact (not shown) that is electrically connected between the 6 and opens and closes the circuit through which the load current flows, an opening and closing mechanism (not shown) that opens and closes this opening and closing contact, and when an overcurrent flows in the circuit A trip mechanism (not shown) for operating the opening / closing mechanism opening / closing mechanism, and a handle 1a capable of manually operating the opening / closing mechanism. Reply
遮断器本体 1 が差込まれる取付台 7 には、 成形絶縁物からなる差込べ ース 8 と、 差込ベース 8 の電源側と負荷側の双方に外部導体 9 が接続さ れる と共にコネクタ 3 に差込み接続される端子部材である差込スタ ッ ド 1 0が配設されている。  The mounting base 7 into which the breaker body 1 is inserted has an insertion base 8 made of molded insulating material, external conductors 9 connected to both the power supply side and the load side of the insertion base 8, and a connector 3 An insertion stud 10, which is a terminal member to be inserted and connected to the connector, is provided.
1 1 はスタ ツ ドカバーで、 差込スタ ツ ド 1 0 の固定及び絶縁を行う も のである。  Reference numeral 11 denotes a stud cover for fixing and insulating the insertion stud 10.
1 2は引外し機構部の一部を形成する ト リ ップシャフ 卜で、 ばね （図 示しない） によ り時計方向に付勢されており 、 回路に過電流が流れたと きに、 反時計方向に所定量、 回動 （矢印 F 1 2方向） して開閉機構部 （図 示しない） を動作させる。  Reference numeral 12 denotes a trip shaft forming a part of the tripping mechanism, which is urged clockwise by a spring (not shown), and is turned counterclockwise when an overcurrent flows in the circuit. The opening and closing mechanism (not shown) is turned by a predetermined amount (in the direction of arrow F12).
1 3 は引外し動作部材である ト リ ップ棒で、 一方端 1 3 a が ト リ ップ シャフ ト 1 2 に遊動係合し、 他方端 1 3 bが差込ベース 8 に配設された 凸部 8 a に当接している。 1 4 は ト リ ップ棒 1 3 を差込ベース 8側に付 勢させる圧縮ばね、 1 5 (第 9図に示す） は ト リ ップ棒 1 3、 圧縮ばね 1 4 の外周に配設されたケースで、 ト リ ップ棒 1 3、 圧縮ばね 1 4、 ケ ース 1 5 によってセーフティ ト リ ップ装置を構成している。  13 is a trip rod which is a tripping member.One end 13a is loosely engaged with the trip shaft 12 and the other end 13b is disposed on the insertion base 8. It is in contact with the projection 8a. Reference numeral 14 denotes a compression spring that urges the trip bar 13 toward the insertion base 8, and reference numeral 15 (shown in FIG. 9) denotes an outer periphery of the trip bar 13 and the compression spring 14. In this case, the trip rod 13, compression spring 14, and case 15 constitute a safety trip unit.
以上のよ う に構成された従来の差込型回路遮断器おいて、 遮断器本体 1 が取付台 7 に取付け られている状態では、 ト リ ップ棒 1 3 の他方端 1 3 b と凸部 8 a が当接し、 ト リ ップ棒 1 3は ト リ ップシャフ ト 1 2側に 押圧されているため、 ト リ ツプ棒 1 3 の一方端 1 3 a は ト リ ップシャフ ト 1 2 の押え部 1 2 a に作用せず、 従って、 遮断器本体 1 の開閉接触子 は閉路状態で、 負荷電流を通電する。  In the conventional plug-in type circuit breaker configured as described above, when the breaker body 1 is mounted on the mounting base 7, the other end 13b of the trip rod 13 protrudes from the other end. Since part 8a is in contact and trip bar 13 is pressed against trip shaft 12 side, one end 13a of trip bar 13 is connected to trip shaft 12. It does not act on the presser part 12a, so the load current flows when the switching contact of the breaker body 1 is closed.
上述のよ う に電流を通電している状態において、 遮断器本体 1 を取付 台 7から取外す動作を行なう と、 圧縮ばね 1 4 の作用によって ト リ ップ 棒 1 3は差込ペース 8側に移動し、 その一方端 1 3 a が ト リ ップシャフ ト 1 2 の押え部 1 2 a に作用 して、 ト リ ップシャフ ト 1 2を F 1 2方向 に回動させ、 開閉機構を動作させてコネクタ 3 と差込スタツ ド 1 0が開 離する前に、 開閉接触子を開路させて負荷電流を遮断する。 When the circuit breaker body 1 is removed from the mounting base 7 while the current is flowing as described above, the trip rod 13 is moved toward the insertion pace 8 by the action of the compression spring 14. And the other end 13 a Acts on the holding portion 12a of the connector 12 to rotate the trip shaft 12 in the direction of F12, before the opening / closing mechanism is operated and before the connector 3 and the insertion stud 10 are separated. Then, open the switching contact to cut off the load current.
また、 ト リ ップ棒 1 3 の他方端 1 3 b を ドライパーなどを使用 して略 9 0 ° 回動させ、 第 9図に示す状態にする と、 ト リ ツプ棒 1 3 の凸部 1 3 c がケース 1 5 の上面部 1 5 b移動した後、 凹部 1 5 c と嵌合する と 共に、 ト リ ップ棒 1 3 の一方端 1 3 a も略 9 0 ° 回動し、 ト リ ップシャ フ 卜 1 2 の押え部 1 2 a と係合しなく なる と共に、 ト リ ップ棒 1 3が矢 印 F 1 3方向に移動できなく なるので一方端 1 3 a は ト リ ップシャフ ト 1 2の押え部 1 2 a に作用しなく なる。  When the other end 13b of the trip rod 13 is rotated by approximately 90 ° using a drier or the like to bring it to the state shown in FIG. 9, the convex portion of the trip rod 13 is formed. After the 13 c moves to the upper surface 15 b of the case 15, it engages with the recess 15 c, and the one end 13 a of the trip rod 13 also rotates approximately 90 °, At this time, the trip shaft 12 no longer engages with the holding portion 12a, and the trip bar 13 cannot move in the direction of the arrow F13. It does not act on the holding part 1 2 a of G 12.
このよ うな状態においては、 ト リ ップ棒 1 3 の凸部 1 3 c はケース 1 5 の凹部 1 5 c と嵌合しているため、 卜 リ ップ棒 1 3 はこの位置から回 動できなく なる と共に、 圧縮ばね 1 4によ り 凸部 1 3 c が凹部 1 5 c に 押圧されているので'、 卜 リ ツプ棒 1 3 の一方端 1 3 a と ト リ ップシャフ ト 1 2 の押え部 1 2 a の係合は解除された状態で固定され、 遮断器本体 1 が取付台 7から取外された状態でハン ドル 1 a によ り 開閉機構部を操 作して開閉接触子の開閉チェックをするこ とが可能である。  In such a state, since the convex portion 13c of the trip bar 13 is fitted with the concave portion 15c of the case 15, the trip bar 13 is rotated from this position. And the convex portion 13c is pressed against the concave portion 15c by the compression spring 14, so that the one end 13a of the trip rod 13 and the trip shaft 12 are removed. When the breaker body 1 is detached from the mounting base 7, the opening / closing mechanism is operated by the handle 1a with the breaker body 1 removed from the mounting base 7. It is possible to check the opening and closing of the child.
以上のよ う に構成された従来の差込型回路遮断器は、 遮断器本体 1 の 開閉接触子が閉路状態において、 開閉チェックが行なえる状態、 つま り ト リ ップ棒 1 3 を固定した状態で遮断器本体 1 を取付台 7 差込むと、 セーフティ ト リ ップ装置が引外し動作をしないので差込スタツ ド 1 0に コネクタ 3が接触した時にアークが発生する。  In the conventional plug-in circuit breaker constructed as described above, the open / close check can be performed when the open / close contact of the breaker body 1 is closed, that is, the trip bar 13 is fixed. If the breaker body 1 is inserted into the mounting base 7 in this state, the safety trip device does not trip and an arc is generated when the connector 3 comes into contact with the insertion stud 10.
また、 ト リ ップ棒 1 3が固定された状態で差込まれた遮断器本体 1 を 取外したときにもセーフティ ト リ ップ装置が引外し動作をしないのでコ ネクタ 3が差込スタ ツ ド 1 0から開離する ときにアークが発生する とレ、 う 問題点があつた。 この発明は、 かかる問題点を解決するためになされたものであり 、 遮 断器本体を取付台から取外した状態でも容易に開閉チェックを行う こ と ができる と共に、 開閉チェックが行なえる状態、 つま り ト リ ップ棒を固 定した状態で遮断器本体を取付台に差込んだ場合、 また遮断器本体を取 付台から取外した場合に、 セーフティ ト リ ップ装置が本来の引外し動作 ができる差込型回路遮断器を得るこ とを 目的と している。 発明の開示 Also, when the breaker body 1 inserted with the trip bar 13 fixed is removed, the safety trip device does not trip and the connector 3 is inserted. There is a problem that an arc is generated when separating from the arm 10. The present invention has been made to solve such a problem, and it is possible to easily perform an open / close check even when the circuit breaker main body is detached from the mounting base, and to perform a state where the open / close check can be performed. When the breaker body is inserted into the mounting base with the trip rod fixed, or when the breaker body is removed from the mounting base, the safety trip device operates as intended. The purpose is to obtain a plug-in type circuit breaker that can be used. Disclosure of the invention
この発明に係る差込型回路遮断器は、 負荷電流が流れる回路を開閉す る開閉接触子と該開閉接触子を開路させる引外し機構部と前記回路に負 荷電流を導く接続用接触部材とを有する遮断器本体と、 外部導体を接続 する と共に前記接続用接触部材を差込み接続する端子部材を有し前記遮 断器本体を取付ける取付台と ¾備えた差込型回路遮断器において、 前記 引外し機構部を作動させる ト リ ップ棒と、 前記遮断器本体を前記取付台 に差込むと きまたは前記遮断器本体を前記取付台から取外すときに前記 ト リ ップ棒に作用する レバ一と、 このレバーを付勢する弾性部材と、 前 記遮断器本体が前記取付台から取外されている ときに前記弾性部材の付 勢力に抗して前記レバーを口 ックする口 ック機構部と を備え、 前記開閉 接触子が閉路状態の前記遮断器本体を前記取付台に差込むときに、 前記 端子部材に前記接続用接触子部材が接触する前に前記口 ック機構部を解 除させて前記弾性部材の付勢力に基づいて前記レバーを前記 ト リ ップ棒 に作用させ前記引外し機構部を動作させて前記開閉接触子を開路させ、 前記開閉接触子が閉路状態の前記遮断器本体を前記取付台から取外すと きに、 前記端子部材と前記接続用接触子部材が開離する前に前記弾性部 材の付勢力に基づいて前記レバーを前記 ト リ ップ棒に作用させ前記引外 し機構部を動作させて前記開閉接触子を開路させるセーフティ ト リ ップ 装置を具備させたものである。 The plug-in type circuit breaker according to the present invention comprises: a switching contact for opening and closing a circuit through which a load current flows; a tripping mechanism for opening the switching contact; and a connection contact member for guiding a load current to the circuit. A pluggable circuit breaker comprising: a circuit breaker main body having a terminal member for connecting an external conductor and inserting and connecting the connection contact member; and a mounting base for mounting the circuit breaker main body. A trip rod for operating a release mechanism, and a lever acting on the trip rod when the circuit breaker body is inserted into the mounting base or when the circuit breaker body is removed from the mounting base. An elastic member for urging the lever; and a locking mechanism for locking the lever against the urging force of the elastic member when the breaker body is detached from the mount. And the opening / closing contact is provided. When the circuit breaker body in a road state is inserted into the mounting base, the hook mechanism is released before the connection contact member comes into contact with the terminal member, and the urging force of the elastic member is reduced. When the lever is acted on the trip rod based on the above, the trip mechanism is operated to open the switching contact, and the circuit breaker body in the closed state of the switching contact is removed from the mounting base. Before the terminal member and the connection contact member are separated from each other, the lever acts on the trip rod based on the urging force of the elastic member to operate the tripping mechanism. Trip to open the switching contact It is equipped with a device.
このこ とによって、 遮断器本体を取付台から取外した状態でも容易に 開閉チェックを行う こ とができる と共に、開閉チェックが行なえる状態、 つま り ト リ ップ棒を固定した状態で遮断器本体を取付台に差込んだ場合. また遮断器本体を取付台から取外した場合にもセーフティ ト リ ップ装置 が本来の引外し動作をする ものである。  This makes it possible to easily perform an open / close check even when the breaker body is removed from the mounting base, and also to perform a check for open / close, that is, with the trip bar fixed. When the breaker body is removed from the mounting base, the safety trip device performs the original tripping operation.
好ま しく は、 前記ロ ック機構部は、 遮断器本体に配設された突起係合 部と、 前記遮断器本体が取付台に差込まれたときに前記取付台に係合す るアームと、 前記遮断器本体が前記取付台から取外されている ときに前 記突起係合部に係止され取付台に差込まれたと きに前記取付台と前記ァ —ムとの係合に基づいて前記突起係合部から離脱する突起と、 によ り構 成される ものである。  Preferably, the locking mechanism comprises: a projection engaging portion provided on the circuit breaker main body; and an arm engaging with the mounting base when the circuit breaker main body is inserted into the mounting base. When the circuit breaker main body is detached from the mounting base, it is locked by the projection engaging portion and when the breaker main body is inserted into the mounting base, it is based on the engagement between the mounting base and the arm. And a projection detached from the projection engaging portion.
好ま しく は、前記レバーは、一方端に ト リ ップ棒に作用する円简部と、 他方端に取付台に係合する突起とを備え、 略中央部に嵌揷されたピンを 支点と して弾性部材によ り 回動自在に保持されるものである。  Preferably, the lever has a round portion acting on the trip rod at one end and a projection engaging the mounting base at the other end, and a pin fitted at a substantially central portion is used as a fulcrum. Thus, it is rotatably held by the elastic member.
このこ とによって、 ロ ック機構部のロ ック及びロ ック解除が確実にで きるものである。  With this, the locking and unlocking of the lock mechanism can be reliably performed.
また、 ピンと 円筒部間の中心距離を前記ピンと突起間の中心距離に比 し略同じまたは大き く したものである。  In addition, the center distance between the pin and the cylindrical portion is substantially the same as or larger than the center distance between the pin and the projection.
このこ と によって、 遮断器本体を取付台から引出す際、 電源側、 負荷 側のどちらか一方を引出しも、 接続用接触部材である コネクタが端子部 材である差込スタ ツ ドから開離する前に、 開閉接触子を開路させて負荷 電流を遮断できる ものである。  As a result, when pulling out the circuit breaker body from the mounting base, either the power supply side or the load side is pulled out, the connector that is the connection contact member is separated from the insertion stand that is the terminal material. Before that, the switching current can be opened to cut off the load current.
また、 突起の、 突起係合部との接触面をテーパー形状にしたものであ る。  Further, the contact surface of the projection with the projection engaging portion has a tapered shape.
このこ と によって、 遮断器本体の差込み時に突起が突起係合部から離 脱され易いと共に、 突起の係合時の強度を確保するこ とができ る もので ある。 As a result, when the breaker body is inserted, the protrusions separate from the protrusion engaging portions. It is easy to come off and can secure the strength when the projection is engaged.
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
第 1 図は、 この発明の実施の形態 1 による差込型回路遮断器の遮断器 本体を取付台から取外した状態の要部縦断面図である。  FIG. 1 is a longitudinal sectional view of a main part of a plug-in type circuit breaker according to Embodiment 1 of the present invention in a state where a circuit breaker main body is removed from a mounting base.
第 2図は、 第 1 図の遮断器本体の上面要部断面図である。  FIG. 2 is a cross-sectional view of a main part of the upper surface of the circuit breaker main body of FIG.
第 3図は、 この発明の実施の形態 1 による差込型回路遮断器のセーフ ティ ト リ ップ装置の拡大斜視図である。  FIG. 3 is an enlarged perspective view of a safety trip device of the plug-in type circuit breaker according to Embodiment 1 of the present invention.
第 4図は、 この発明の実施の形態 1 による差込型回路遮断器の遮断器 本体を取付台に差込む途中の状態を示す要部縦断面図である。  FIG. 4 is a longitudinal sectional view of an essential part showing a state in which the breaker body of the plug-in type circuit breaker according to Embodiment 1 of the present invention is being inserted into the mounting base.
第 5図は、 この発明の実施の形態 1 による差込型回路遮断器の遮断器 本体を取付台に差込んだ状態の要部縦断面図である。  FIG. 5 is a longitudinal sectional view of a main part of the plug-in type circuit breaker according to Embodiment 1 of the present invention in a state where the circuit breaker main body is inserted into a mounting base.
第 6 図は、 第 5 図の上面要部断面図である。  FIG. 6 is a cross-sectional view of a main part of the upper surface of FIG.
第 7図は、 第 5 図の下面窭部断面図である。  FIG. 7 is a cross-sectional view of the lower surface of FIG.
第 8 図は、 従来の差込型回路遮断器の遮断器本体を取付台に差込んだ 状態の要部縦断面図である。  FIG. 8 is a longitudinal sectional view of a main part of a conventional plug-in type circuit breaker in a state where a breaker body is inserted into a mounting base.
第 9図は、 第 8 図のセーフティ ト リ ップ装置の引外し機構部との係合 を解除した時の拡大断面図で、 （ a ) は拡大側断面図、 （ b ) は （ a ) の 上面要部断面図、 （ c )は ト リ ップ棒とケースの嵌合状態を示す拡大内部 斜視図である。 図面中の符号の説明  Fig. 9 is an enlarged cross-sectional view of the safety trip device of Fig. 8 when the engagement with the tripping mechanism is released, (a) is an enlarged side cross-sectional view, and (b) is (a). 3 is a cross-sectional view of a main part of the upper surface, and (c) is an enlarged internal perspective view showing a fitting state of a trip rod and a case. Description of reference numerals in the drawings
1 は遮断器本体、 1 a はハン ドル、 2は加圧ばね、  1 is the breaker body, 1 a is the handle, 2 is the pressure spring,
3 はコネクタ （接続用接触部材）、 4は差込端子、 5は電源側端子、 6 は負荷側端子、 7は取付台、 8 は差込ペース、 8 a はアーム係合部、 8 b はレバー係合部、 9は外部導体、 1 0は差込スタ ッ ド （端子部材）、 1 1 はスタ ッ ドカパー、 1 2 は ト リ ップシャフ ト （引外し機構部）、 1 5は中間ァクチエータ、 1 5 a は軸、 2 0 はセーフティ ト リ ツプ装置、 2 1 は ト リ ップ棒、 2 1 a は嵌揷孔、 2 1 b は先端部、 2 2はレバー、 2 2 a は貫通孔、 2 2 b は円筒部、 2 2 c はアーム、 2 2 dは突起、 2 2 e は凸設部、 2 3はひねり ばね、 2 4は締付ねじ、 3 is a connector (connecting member for connection), 4 is a plug terminal, 5 is a power supply terminal, 6 is a load terminal, 7 is a mounting base, 8 is a insertion pace, 8a is an arm engagement portion, and 8b is a Lever engagement part, 9 is the outer conductor, 10 is the insertion stud (terminal member), 11 is a stud cover, 12 is a trip shaft (tripping mechanism), 15 is an intermediate actuator, 15a is a shaft, 20 is a safety trip unit, and 21 is a trip unit. Rod, 2 1a is a fitting hole, 2 1b is a tip, 2 2 is a lever, 2 2a is a through hole, 2 2b is a cylindrical part, 2 2c is an arm, 2 2d is a protrusion, 2 2 e is a projecting part, 23 is a twist spring, 24 is a tightening screw,
2 5はブラケッ ト、 2 5 a は貫通孔、 2 5 b は貫通孔、 2 5 c は係合孔、 2 5 d は突起係合部、 2 6 はピン、 3 0 はロ ッ ク機構部。 発明を実施するための最良の形態  25 is a bracket, 25a is a through hole, 25b is a through hole, 25c is an engagement hole, 25d is a projection engagement portion, 26 is a pin, and 30 is a lock mechanism. . BEST MODE FOR CARRYING OUT THE INVENTION
実施の形態 1 Embodiment 1
第 1 図は、 この発明の実施の形態 1 による差込型回路遮断器の遮断器 本体を取付台から取外した状態の要部縦断面図、 第 2 図は、 第 1 図の遮 断器本体を負荷側から見た上面要部断面図、 第 3図は、 この発明の実施 の形態 1 による差込型回路遮断器のセーフティ ト リ ップ装置の拡大斜視 図である。  FIG. 1 is a longitudinal sectional view of a main part of a plug-in type circuit breaker according to Embodiment 1 of the present invention in a state in which a main body of the breaker is removed from a mounting base. FIG. FIG. 3 is an enlarged perspective view of a safety trip device for a plug-in type circuit breaker according to Embodiment 1 of the present invention, as viewed from the load side.
第 1 図及び第 2図において、 遮断器本体 1 は成形絶縁物のケースの中 に加圧ばね 2 の作用によ り所定の接触圧力によって保持され接続用接触 部材であるチューリ ップ形状のコネクタ 3が取付けられた電源側及び負 荷側の端子接続用部材である差込端子 4、 差込端子 4 の夫々に取付けら れた電源側端子 5及び負荷側端子 6、 電源側端子 5 と負荷側端子 6間に 電気的に接続され、 負荷電流が流れる回路を開閉する開閉接触子 （図示 しない）、 この開閉接触子を開閉させる開閉機構部 （図示しない）、 回路 に過電流が流れた時、この開閉機構開閉部を動作させる引外し機構部（図 示しない）、 及ぴ手動によ り 、 開閉機構部を操作するこ とができ るハン ド ル 1 a を備えている。  In FIGS. 1 and 2, a circuit breaker body 1 is held in a case of a molded insulator by a predetermined contact pressure by the action of a pressure spring 2 and is a tulip-shaped connector which is a contact member for connection. Power supply terminal 5 and load terminal 6, power supply terminal 5, power supply terminal 5, and load Switching contact (not shown) that is electrically connected between the side terminals 6 to open and close the circuit through which the load current flows, switching mechanism (not shown) that opens and closes this switching contact, and when an overcurrent flows in the circuit A trip mechanism (not shown) for operating the opening / closing mechanism opening / closing section, and a handle 1a that can manually operate the opening / closing mechanism section.
遮断器本体 1 が差込まれる取付台 7 には、 成形絶縁物からなる差込べ ース 8 と、 差込ベース 8の電源側と負荷側の双方に外部導体 9が接続さ れる と共にコネクタ 3 に差込み接続される端子部材である差込スタ ッ ド 1 0が配設されている。 The mounting base 7 into which the breaker body 1 is inserted The external conductor 9 is connected to both the base 8 and the power supply side and the load side of the insertion base 8, and an insertion stud 10 which is a terminal member to be inserted and connected to the connector 3 is provided. .
1 1 はスタ ッ ド力パーで、 差込スタ ッ ド 1 0 の固定及ぴ絶縁を行う も のである。  11 is a stud force par for fixing and insulating the plug stud 10.
1 2は引外し機構部の一部を形成する ト リ ップシャフ トで、 ばね （図 示しない） によ り反時計方向に付勢されており 、. 回路に過電流が流れた ときに、 反時計方向に所定量、 回動 （矢印 F 1方向） して開閉機構部 （図 示しない） を動作させる。  1 and 2 are trip shafts which form a part of the tripping mechanism and are urged counterclockwise by a spring (not shown). Turn the opening / closing mechanism (not shown) by rotating it clockwise by a predetermined amount (direction of arrow F1).
1 5 は後述の ト リ ップ棒 2 1 に連動して軸 1 5 a を支点と して矢印 F 2方向に回動し、 ト リ ップシャフ ト 1 2 を動作させる中間ァクチエータ である。 ， 第 3図において、 2 0 はセーフティ ト リ ップ装置で、 中間ァクチエー タ 1 5 を回動させる ト リ ップ棒 2 1 、 遮断器本体 1 を取付台 7 に差込む ときまたは遮断器本体 1 を取付台 7から取外すときに ト リ ップ棒 2 1 に 作用する レバー 2 2 、 このレバ一 2 2 を付勢する弾性部材であるひねり ばね 2 3、 及ぴ締付ねじ 2 4 によつて遮断器本体 1 に固定されるブラケ ッ ト 2 5、 並びにブラケッ ト 2 5 の貫通孔 2 5 a 、 レバー 2 2 の貫通孔 2 2 a 、 ひねり ばね 2 3、 ブラケッ ト 2 5の貫通孔 2 5 b を貫通する と 共に、 レパ一 2 2 の略中央部に嵌挿されてレパー 2 2 を回動自在に保持 する ピン 2 6 によ り構成されている。  Reference numeral 15 denotes an intermediate actuator that rotates in the direction of arrow F2 with the shaft 15a as a fulcrum in conjunction with a trip rod 21 described later to operate the trip shaft 12. In Fig. 3, reference numeral 20 denotes a safety trip device, which is used to insert the trip rod 21 for rotating the intermediate actuator 15 and the breaker body 1 into the mounting base 7 or to insert the breaker body. 1 is removed from the mounting base 7 by the lever 22 acting on the trip rod 21, the torsion spring 23 which is an elastic member for urging the lever 22, and the tightening screw 24. Bracket 25 fixed to the breaker body 1, the through hole 25 a of the bracket 25, the through hole 22 a of the lever 22, the twist spring 23, the through hole 2 of the bracket 25 5b, and is constituted by a pin 26 which is inserted into a substantially central portion of the reper 22 and holds the reper 22 in a freely rotatable manner.
ピン 2 6 を支点と して回動自在に保持されたレバー 2 2には、 一方端 に ト リ ップ棒 2 1 の嵌揷孔 2 1 a に嵌挿される円筒部 2 2 bが凸設され 他方端には遮断器本体 1 が取付台 7 に差込まれたときに取付台 7 に係合 するアーム 2 2 c及びブラケッ ト 2 5 に配設された係合孔 2 5 c の突起 係合部 2 5 d に係合する突起 2 2 dがー体的に配設されている。 また、 ひねり ばね 2 3 は、 一方端 2 3 a がブラケッ ト 2 5のばね係止 部 2 5 e に係止され、 他方端 2 3 b がレパー 2 2 に凸設された凸設部 2 2 e に係止されて、 レバー 2 2 を矢印 F 3方向に付勢しており 、 遮断器 本体 1 が取付台 7 に差込まれたときに、 アーム 2 2 c が取付台 7 に係合 し、 突起 2 2 dが突起係合部 2 5 dから離脱すると、 レバー 2 2が矢印 F 3方向に回動し、 レバー 2 2 が矢印 F 4方向に移動して ト リ ップ棒 2 1 の先端部 2 l bが中間ァクチエータ 1 5 a に作用する。 On one end of the lever 22 rotatably held with the pin 26 as a fulcrum, a cylindrical portion 2 2b that is inserted into the fitting hole 21 a of the trip rod 21 is protruded at one end. At the other end, the arms 22 c that engage with the mounting base 7 when the circuit breaker body 1 is inserted into the mounting base 7 and the projections of the engagement holes 25 c provided in the bracket 25. A projection 22d engaging with the joint 25d is physically disposed. The torsion spring 23 has one end 23 a locked to the spring locking portion 25 e of the bracket 25, and the other end 23 b bent to the leper 22. e, the lever 22 is urged in the direction of arrow F3.When the breaker body 1 is inserted into the mounting base 7, the arm 22c engages with the mounting base 7. When the projection 2 2 d is disengaged from the projection engaging portion 25 d, the lever 22 rotates in the direction of arrow F 3, and the lever 22 moves in the direction of arrow F 4 to move the trip bar 2 1. The 2 lb tip acts on the middle actuator 15a.
なお、 上記の構成において、 ブラケッ ト 2 5 に配設された係合孔 2 5 c の突起係合部 2 5 d と、 遮断器本体 1 が取付台 7 に差込まれたときに 後述の取付台 7のアーム係合部 8 a に係合するアーム 2 2 c .と、 遮断器 本体 1 が取付台 7から取外されている ときに突起係合部 2 5 d に係止さ れ取付台 7 に差込まれたときに取付台 7 とアーム 2 2 との係合に基づい て突起係合部 2 5 dカゝら離脱する突起 2 2 d とをロ ック機構部 3 0 とい In the above configuration, when the breaker main body 1 is inserted into the mounting base 7 and the protrusion engaging portion 25 d of the engaging hole 25 c provided in the bracket 25, the mounting will be described later. Arm 2 2 c that engages with the arm engaging portion 8 a of the base 7, and the mounting base that is locked by the projection engaging portion 25 d when the breaker body 1 is removed from the mounting base 7. The protrusion 22 d that is detached from the protrusion engaging portion 25 d based on the engagement between the mounting base 7 and the arm 22 when inserted into the lock 7 is called a lock mechanism portion 30.
5 。 Five .
以上のよ う に構成されたセーフティ ト リ ップ装置 2 0 を備えた差込型 回路遮断器は、 遮断器本体 1 を取付台 7から取外した状態において、 セ —フティ ト リ ップ装置 2 0 の レバー 2 2 の突起 2 2 dがブラケッ ト 2 5 の突起係合部 2 5 d に係合した口 ック状態では ト リ ップ棒 2 1 は中間ァ クチユエータ 1 5 に作用 しないので、 ハン ドル 1 a によ り 開閉機構部を 操作して開閉接触子の開閉チェ ックすることが可能である。  The plug-in type circuit breaker provided with the safety trip device 20 configured as described above operates in a state where the breaker body 1 is removed from the mounting base 7 and the safety trip device 2 is mounted. In the locked state in which the projection 2 2 d of the lever 2 2 of 0 is engaged with the projection engaging portion 25 d of the bracket 25, the trip rod 21 does not act on the intermediate actuator 15. The opening / closing contact can be checked by operating the opening / closing mechanism with the handle 1a.
第 4図は、 この発明の実施の形態 1 による差込型回路遮断器の遮断器 本体を取付台に差込む途中状態における要部縦断面図である。  FIG. 4 is a longitudinal sectional view of a main part of the plug-in type circuit breaker according to Embodiment 1 of the present invention in a state where the circuit breaker main body is being inserted into the mount.
第 5図は、 この発明の実施の形態 1 による差込型回路遮断器の遮断器本 体を取付台に差込んだ状態の要部縦断面図、 第 6 図は、 第 5図の遮断器 本体を負荷側から見た上面要部断面図、 第 7図は、 第 5 図の遮断器本体 を電源側から見た下面要部断面図である。 次に、 遮断器本体 1 が取付台 7 から取外された状態から取付台 Ί に差 込んだときの動作について第 4 図から第 7図を用いて説明する。 FIG. 5 is a longitudinal sectional view of a main part of the plug-in type circuit breaker according to Embodiment 1 of the present invention in a state where the main body of the breaker is inserted into a mounting base. FIG. 6 is a circuit breaker of FIG. FIG. 7 is a cross-sectional view of a main part of the upper surface when the main body is viewed from the load side, and FIG. 7 is a cross-sectional view of a main part of the lower surface when the main body of the circuit breaker of FIG. 5 is viewed from the power supply side. Next, an operation when the breaker body 1 is inserted into the mounting base か ら from a state where the circuit breaker main body 1 has been removed from the mounting base 7 will be described with reference to FIGS. 4 to 7. FIG.
遮断器本体 1 を取付台 7へ差込むと、 端子部材である差込スタッ ド 1 0 と接続用接触部材であるコネクタ 3が接触する前に差込ベース 8 に形 成されたアーム係合部 8 a にレバー 2 2 のアーム 2 2 c が係合し矢印 F 5方向の力を受け、 突起. 2 2 dが突起係合部 2 5 dから離脱され、 レバ 一 2 2がひねり ばね 2 3 の付勢力によって回動し、 ト リ ップ棒 2 1 が矢 印 F 6方向に移動して先端部 2 1 b が中間ァクチ； cータ 1 5に作用し、 軸 1 5 a を支点と して矢印 F 7方向に回動し、 ト リ ップシャフ ト 1 2 を 矢印 F 8方向に回動させ、 開閉機構を動作させて、 開閉接触子を開路さ せて負荷電流を遮断する。  When the breaker body 1 is inserted into the mounting base 7, the arm engaging section formed on the insertion base 8 before the insertion stud 10 as the terminal member and the connector 3 as the connection contact member come into contact with each other. The arm 2 2 c of the lever 22 engages with 8 a and receives the force in the direction of arrow F 5, and the projection is released. The trip rod 21 moves in the direction of the arrow F 6, and the tip 21 b acts on the intermediate actuator 15. The shaft 15 a acts as a fulcrum. Then, the trip shaft 12 is turned in the direction of arrow F8, and the opening / closing mechanism is operated to open the opening / closing contact and cut off the load current.
なお、 この時レバー 2 2はひねり ばね 2 3の付勢力によって矢印 F 9 方向 （第 5図に示す） に移動する と共に、 差込ベース 7 に形成されたレ バー係合部 8 b にレパー 2 2の凸設部 2 2 e が当接する。  At this time, the lever 22 is moved in the direction of arrow F 9 (shown in FIG. 5) by the biasing force of the twist spring 23, and the lever 22 is attached to the lever engaging portion 8 b formed on the insertion base 7. The protruding part 2 2 e of 2 comes into contact.
遮断器本体 1 を更に差込むと、 コネクタ 3が差込スタ ッ ド 1 0 に接触 した後、 嵌挿されるこ とによ り コネクタ 3 と差込スタ ツ ド 1 0が電気的 に接続され、 加圧ばね 2 によつて所定の接触圧力でコネクタ 3 と差込ス タッ ド 1 0が接触保持される と共に、 レバー 2 2 の凸設部 2 2 e によ り レバー係合部 8 b が押圧され、 ひねり ばね 2 3 の付勢力に抗してレバ一 2 2が矢印 F 1 0方向 （第 7図に示す） に回動し、 ト リ ップ棒 2 1 が中 間ァクチエータ 2 1 に作用 しない位置に移動する。 （第 5図乃至第 7図） 次に、 以上のよ う に構成された取付台 7 へ差込まれた遮断器本体 1 を 引出す場合の動作について説明する。  When the breaker body 1 is further inserted, after the connector 3 comes into contact with the insertion stud 10, the connector 3 and the insertion stud 10 are electrically connected by being inserted and inserted. The connector 3 and the insertion stand 10 are kept in contact with a predetermined contact pressure by the pressurizing spring 2, and the lever engaging portion 8b is pressed by the convex portion 22e of the lever 22. The lever 22 rotates in the direction of arrow F10 (shown in Fig. 7) against the biasing force of the twist spring 23, and the trip rod 21 acts on the intermediate actuator 21. Move to a position that does not. (FIGS. 5 to 7) Next, the operation when the circuit breaker body 1 inserted into the mounting base 7 configured as described above is pulled out will be described.
遮断器本体 1 を引出す場合の動作は上述した差込み動作と逆の操作で 実施され、 遮断器本体 1 が引出される と、 差込ペース 8.に形成されたレ パー係合部 8 b に当接している レバ 2 2 の凸設部 2 2 eがひねり ばね 2 3 に付勢され矢印 F 1 1方向 （第 7図に示す） に回動し、 ト リ ップ棒 2 1 が矢印 F 6方向 （第 4図に示.す） に移動して先端部 2 1 b が中間ァ クチヱ一タ 2 1 に作用 し、軸 1 5 a を支点と して矢印 F 7方向に回動し、 ト リ ップシャ フ ト 1 2 を矢印 F 8方向に回動させ、 コネクタ 3が差込ス タツ ド 1 0から開離する前に開閉接触子を開路させて負荷電流を遮断す る。 The operation of pulling out the breaker body 1 is performed in the reverse of the insertion operation described above, and when the breaker body 1 is pulled out, the breaker body 1 comes into contact with the repeller engaging portion 8b formed in the insertion pace 8. The projecting portion 2 2 e of lever 2 2 in contact is twisted Spring Energized to 23, it rotates in the direction of arrow F11 (shown in Fig. 7), and the trip bar 21 moves in the direction of arrow F6 (shown in Fig. 4) to move the tip. 2 1 b acts on the intermediate actuator 21, pivots about the shaft 15 a in the direction of the arrow F 7, and pivots the trip shaft 12 in the direction of the arrow F 8. Before the connector 3 separates from the insertion stand 10, open the switching contact to cut off the load current.
なお、 第 7図において、 c はピン 2 6位置と 円筒部 2 2 b間の中心距 離、 d はピン 2 6位置と凸設部 2 2 e 間の中心距離であ り 、 c と dの関 係は d c に設定している。 このよ う にするこ と によ り 、 レバー 2 2が 回動する角度に対して ト リ ップ棒 2 1 の移動寸法が大き く なるので、 遮 断器本体 1 を取付台 7から引出す際、 電源側、 負荷側のどちらか一方を 引出しても、 コネクタ 3が差込スタ ッ ド 1 0から開離する前に、 開閉接 触子を開路させて負荷電流を遮断できる。  In FIG. 7, c is the center distance between the position of the pin 26 and the cylindrical portion 22b, and d is the center distance between the position of the pin 26 and the protruding portion 22e. The relationship is set to dc. By doing so, the movement dimension of the trip rod 21 becomes large with respect to the angle at which the lever 22 rotates, and therefore, when the circuit breaker body 1 is pulled out from the mounting base 7. Even if one of the power supply side and the load side is pulled out, the load current can be cut off by opening the switching contact before the connector 3 is separated from the insertion stand 10.
また、 第 3図において、 突起係合部 2 5 d に係合する突起 2 2 dの寸 法は、 遮断器本体 1 の引出し時に突起 2 2 dが突起係合部 2 5 dから離 脱され易く 、 また、 突起 2 2 d の係合時の強度を確保させるため、 ピン 2 6位置に近接する側の突起 2 2 dの寸法を a 、 ピン 2 6位置に遠方側 の寸法を b とする と、 a く b となるテーパー形状に設定している。 産業上の利用可能性  Also, in FIG. 3, the dimensions of the projection 22 d that engages with the projection engagement portion 25 d are such that the projection 22 d is detached from the projection engagement portion 25 d when the breaker body 1 is pulled out. In order to secure the strength when the projections 2 2 d are engaged, the dimension of the projection 22 d on the side close to the pin 26 is a, and the dimension on the side far from the pin 26 is b. And a and b. Industrial applicability
以上のよ う に、 この発明の差込型回路遮断器は、 遮断器本体を取付台 に着脱する と きに確実に開閉接触子を開路させるものと して、 適するも のである。  As described above, the plug-in type circuit breaker of the present invention is suitable for surely opening the on-off contact when the circuit breaker body is attached to or detached from the mounting base.

Claims

請求の範囲 ' The scope of the claims '
1 . 負荷電流が流れる回路を開閉する開閉接触子と該開閉接触子を開路 させる引外し機構部と前記回路に負荷電流を導く接続用接触部材 （ 3 ) とを有する遮断器本体 （ 1 ) と、 外部導体 （ 9 ) を接続する と共に前記 接続用接触部材 （ 3 ) を差込み接続する端子部材 （ 1 0 ) を有し前記遮 断器本体 （ 1 ) を取付ける取付台 （ 7 ) とを備えた差込型回路遮断器に おいて、 前記引外し機構部を作動させる ト リ ップ棒 （ 2 1 ) と、 前記遮 断器本体 （ 1 ) を前記取付台 （ 7 ) に差込むときまたは前記遮断器本体 ( 1 ) を前記取付台 （ 7 ) カゝら取外すと きに前記 ト リ ツプ棒 （ 2 1 ) に 作用する レバー （ 2 2 ) と、 このレバ一 （ 2 2 ) を付勢する弾性部材 （ 2 3 ) と、 前記遮断器本体 （ 1 ) が前記取付台 （ 7 ) から取外されている と きに前記弾性部材 （ 2 3 ) の付勢力に抗して前記レバー （ 2 2 ) を口 ックするロ ック機構部 （ 3 0 ) とを備え.、 前記開閉接触子が閉路状態の 前記遮断器本体 （ 1 ) を前記取付台 （ 7 ) に差込むときに、 前記端子部 材 （ 1 0 ) に前記接続用接触子部材 （ 3 ) が接触する前に前記ロ ック機 構部 （ 3 0 ) を解除させて前記弾性部材 （ 2 3 ) の付勢力に基づいて前 記レバー （ 2 2 ) を前記 ト リ ップ棒 （ 2 1 ) に作用させ前記引外し機構 部 （ 1 2 ) を動作させて前記開閉接触子を開路させ、 前記開閉接触子が 閉路状態の前記遮断器本体 （ 1 ) を前記取付台 （ 7 ) から取外すときに、 前記端子部材 （ 1 0 ) と前記接続用接触子部材 （ 3 ) が開離する前に前 記弾性部材 （ 2 3 ) の付勢力に基づいて前記レバー （ 2 2 ) を前記 ト リ ップ棒 （ 2 1 ) に作用させ前記引外し機構部 （ 1 2 ) を動作させて前記 開閉接触子を開路させるセーフティ ト リ ップ装置 （ 2 0 ) を具備させた こ とを特徴とする差込型回路遮断器。 1. A circuit breaker body (1) having a switching contact for opening and closing a circuit through which a load current flows, a tripping mechanism for opening the switching contact, and a connection contact member (3) for leading a load current to the circuit. A mounting base (7) for connecting the external conductor (9) and having a terminal member (10) for inserting and connecting the connection contact member (3) and for mounting the circuit breaker body (1). In the plug-in type circuit breaker, when the trip rod (21) for operating the tripping mechanism and the circuit breaker body (1) are inserted into the mounting base (7) or When the breaker body (1) is detached from the mounting base (7), the lever (22) acting on the trip rod (21) and the lever (22) are urged. When the circuit breaker body (1) is removed from the mounting base (7), the elastic member (23) A lock mechanism (30) for opening the lever (22) against the urging force of the member (23); and the circuit breaker body (30) in which the on-off contact is in a closed state. 1) is inserted into the mounting base (7), before the connecting contact member (3) comes into contact with the terminal member (10), the locking mechanism (30) is moved. When the lever is released, the lever (22) is acted on the trip rod (21) based on the urging force of the elastic member (23) to operate the tripping mechanism (12). The terminal member (10) and the contact member for connection (when the circuit breaker body (1) is opened from the mounting base (7) when the circuit breaker body (1) is opened and the circuit breaker contacts are opened. 3) Before the lever is released, the lever (22) is acted on the trip rod (21) based on the biasing force of the elastic member (23) to release the trip. A plug-in type circuit breaker comprising a safety trip device (20) for operating a mechanism (12) to open the switching contactor.
2. 前記ロ ック機構部 （ 3 0 ) は、 遮断器本体 （ 1 ) に配設された突起 係合部 （ 2 5 d ) と、 前記遮断器本体 （ 1 ) が取付台 （ 7 ) に差込まれ たときに前記取付台 （ 7 ) に係合するアーム （ 2 2 c ) と、 前記遮断器 本体 （ 1 ) が前記取付台 （ 7 ) から取外されている と きに前記突起係合 部 （ 2 5 d ) に係止され前記取付台 （ 7 ) に差込まれたときに前記取付 台 （ 7 ) と前記アーム （ 2 2 c ) との係合に基づいて前記突起係合部 （ 22. The locking mechanism (30) has a projection engaging portion (25d) provided on the circuit breaker body (1) and the circuit breaker body (1) mounted on a mounting base (7). The arm (22c) that engages with the mounting base (7) when inserted, and the protrusions when the circuit breaker body (1) is removed from the mounting base (7). The projection engaging portion is locked by the joint (25d) and is inserted into the mounting base (7) based on the engagement between the mounting base (7) and the arm (22c). (2
5 d ) から離脱する突起 （ 2 2 d ) と、 によ り構成されるこ と を特徴と する請求項 1 記載の差込型回路遮断器。 The plug-in type circuit breaker according to claim 1, characterized by comprising: a projection (22d) detached from 5d).
3'. 前記レバー （ 2 2 ) は、 一方端に ト リ ップ棒 （ 2 1 ) に作用する円 筒部 （ 2 2 b ) と、 他方端に取付台 （ 7 ) に係合する突起 （ 2 2 d ) と を備え、 略中央部に嵌挿されたピン （ 2 6 ) を支点と して弾性部材 （ 2 3 ) によ り 回動自在に保持されるこ とを特徴とする請求項 1記載の差込 型回路遮断器。 3 '. The lever (22) has a cylindrical portion (22b) acting on the trip rod (21) at one end, and a projection (7) engaging the mounting base (7) at the other end. 22 d), and is rotatably held by the elastic member (23) with the pin (26) fitted substantially in the center as a fulcrum. The plug-in type circuit breaker described in 1.
4 . 前記ピン ( 2 6 ) と 円倚部 （ 2 2 b ) 間の中心距離を前記ピン （ 24. The center distance between the pin (26) and the bulge (22b) should be
6 ) と突起 （ 2 2 d ) 間の中心距離に比し略同じ、 または大き く したこ とを特徴とする請求項 3記載の差込型回路遮断器。 The plug-in type circuit breaker according to claim 3, characterized in that it is substantially the same as or larger than the center distance between (6) and the projection (22d).
5 . 前記突起 （ 2 2 d ) の、 突起係合部 （ 2 5 d ) との接触面をテーパ 一形状にしたこ とを特徴とする請求項 2記載の差込型回路遮断器。 5. The plug-in type circuit breaker according to claim 2, wherein a contact surface of the projection (22d) with the projection engaging portion (25d) is tapered.
PCT/JP2002/004943 2002-05-22 2002-05-22 Insertion type circuit breaker WO2003098652A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP02728105A EP1507275B1 (en) 2002-05-22 2002-05-22 Insertion type circuit breaker
JP2004506054A JP4057010B2 (en) 2002-05-22 2002-05-22 Plug-in type circuit breaker
PCT/JP2002/004943 WO2003098652A1 (en) 2002-05-22 2002-05-22 Insertion type circuit breaker
CNB028091507A CN1302503C (en) 2002-05-22 2002-05-22 Insertion type circuit breaker
DE60239108T DE60239108D1 (en) 2002-05-22 2002-05-22
TW091111259A TWI222094B (en) 2002-05-22 2002-05-28 Plug-in type circuit breaker

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PCT/JP2002/004943 WO2003098652A1 (en) 2002-05-22 2002-05-22 Insertion type circuit breaker

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JP (1) JP4057010B2 (en)
CN (1) CN1302503C (en)
DE (1) DE60239108D1 (en)
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WO (1) WO2003098652A1 (en)

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KR101087511B1 (en) * 2009-05-21 2011-11-29 엘에스산전 주식회사 Interlock apparatus for circuit breaker
CN102129938B (en) * 2010-01-12 2015-10-07 苏州中钻电气制造有限公司 Plug-in wiring device of circuit breaker
CN102445131B (en) * 2011-11-24 2013-12-18 天津市百利电气有限公司 Inspection tool for thermal trip of moulded case circuit breaker and use method thereof
US8649160B2 (en) * 2012-02-07 2014-02-11 Eaton Corporation Plug-in circuit breaker assembly including insulative retainers
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BR112018006713B1 (en) * 2015-11-06 2023-01-03 Weg Drives And Controls Automação Ltda CIRCUIT BREAKER WITH PLUGABLE TRIP MODULE
CN109074997B (en) * 2016-04-19 2021-03-16 赛峰电气与电源公司 Integrated contact socket for plug-in circuit breaker
CN109155222B (en) 2016-05-11 2020-06-19 赛峰电气与电源公司 Circuit breaker with press-fit socket
US9818567B1 (en) * 2016-08-24 2017-11-14 Siemens Industry, Inc. Apparatus and method of reducing arcing between a circuit breaker line terminal and a panel board terminal
CN110706983A (en) * 2019-07-29 2020-01-17 华辉智能技术有限公司 Detachable circuit breaker locking structure

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CN1520602A (en) 2004-08-11
EP1507275B1 (en) 2011-02-02
EP1507275A4 (en) 2008-03-26
DE60239108D1 (en) 2011-03-17
EP1507275A1 (en) 2005-02-16
TWI222094B (en) 2004-10-11
JP4057010B2 (en) 2008-03-05
CN1302503C (en) 2007-02-28
JPWO2003098652A1 (en) 2005-09-22

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