JP2011008915A - Moving member receptacle for movable contact apparatus and formation method for the same - Google Patents

Moving member receptacle for movable contact apparatus and formation method for the same Download PDF

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JP2011008915A
JP2011008915A JP2009148146A JP2009148146A JP2011008915A JP 2011008915 A JP2011008915 A JP 2011008915A JP 2009148146 A JP2009148146 A JP 2009148146A JP 2009148146 A JP2009148146 A JP 2009148146A JP 2011008915 A JP2011008915 A JP 2011008915A
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movable contact
center line
contact surface
line
receiver
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JP5226614B2 (en
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Takuya Ogura
卓也 小倉
Koji Kawamura
浩司 川村
Masatoshi Murai
正俊 村井
Kazumasa Watanabe
和昌 渡辺
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H2001/223—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member using a torsion spring

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Abstract

PROBLEM TO BE SOLVED: To provide a molding method for improving a yield of conductive material to be used in the molding method for a moving member receptacle for a movable contact apparatus of a circuit breaker for an electronic circuit.SOLUTION: The moving member receptacle, formed by bending in chevron form along a first bending line 10 on a contact surface 2c in a leg section 2d of a conductive connecting section 2b, the first bending line 10 exists in the leg section 2d, provided at a prescribed acute angle θwith respect to the center line of the contact surface 2c provided perpendicular to the central line; the conductive connecting section 2b comes into contact with a base section 2a, along a second folding line 11 in the leg section 2d, and the contact surface 2c is bent in a valley-folded form having a prescribed space to the center line; and the second bending line 11 is provided in the leg section 2d, at a prescribed acute angle θwith respect to the center line.

Description

この発明は、電力回路に用いられている回路遮断器の可動接触装置用可動子受けおよびその形成方法に係るものである。   The present invention relates to a mover receiver for a movable contact device of a circuit breaker used in a power circuit and a method for forming the same.

従来の回路遮断器において用いられる可動子受けは、例えば、特許文献１に示されているように銅のような導電性に優れ、プレス加工などにより板材を折り曲げて形成するような加工性に優れた材料を用いて形成される。可動子受けは本体ケースに装着される基部と、この基部から直角に立ち上げられて、先端が平行に対向する一対の接続導体部と、この一対の接続導体部の一端部から相対向する方向に突出した一対の突出部とで構成されている。   The mover receiver used in the conventional circuit breaker is excellent in conductivity such as copper as shown in Patent Document 1, for example, and excellent in workability such as bending a plate material by press working or the like. Formed using different materials. The mover receiver is mounted on the main body case, a pair of connection conductors that are raised from the base at a right angle, and whose ends are opposed to each other in parallel, and opposite directions from one end of the pair of connection conductors. And a pair of projecting portions projecting from each other.

特開２０００−２６８６９７号公報JP 2000-268697 A

回路遮断器の通電経路の一部となる可動子受けでは、回路が閉じている際の通電容量を確保するために、所定の断面積が必要となる。その上で可動接触子と可動子受けの接続の際には、可動子受けの接続導体部を撓ませた後、可動接触子に設けられた１対の突出部に可動接触子の貫通孔に嵌装することで接続している。可動子受けの１対の接続導体部は銅の板材を折曲げることで形成しているが、接続の際に可動接触子が接続可能な程度に十分に撓むように、１対の接続導体部を十分に長くすることで撓み量を確保している。   In the mover receiver that is a part of the energization path of the circuit breaker, a predetermined cross-sectional area is required to ensure the energization capacity when the circuit is closed. Then, when connecting the movable contact and the movable receiver, the connecting conductor portion of the movable receiver is bent, and then the pair of protrusions provided on the movable contact are inserted into the through holes of the movable contact. It is connected by fitting. The pair of connection conductor portions of the mover receiver are formed by bending a copper plate material, but the pair of connection conductor portions are formed so that the movable contact can be sufficiently bent when connected. The amount of bending is secured by making it sufficiently long.

図４に示すように従来の可動子受けは、可動子受けの接続導体部に対して平行な山折線と谷折線を持つ方向に折り曲げを２回行うことで、接続導体部の形成を行っている。
しかし、従来の折曲げ方向による可動子受けの形成方法では、図４から判るように１対の接続導体部が長いほど可動子受けの形成前である展開した状態において必要な材料寸法が大きくなってしまうため、材料歩留まりが悪化するという問題がある。
この発明は、上記の課題を解決するためになされたもので、必要な材料寸法を低減し、材料歩留まりを向上させることを目的としている。 As shown in FIG. 4, in the conventional mover receiver, the connection conductor portion is formed by bending twice in a direction having a mountain fold line and a valley fold line parallel to the connection conductor portion of the mover receiver. Yes.
However, in the conventional method for forming the mover receiver in the bending direction, as shown in FIG. 4, the longer the pair of connecting conductors, the larger the required material dimensions in the unfolded state before the mover receiver is formed. Therefore, there is a problem that the material yield deteriorates.
The present invention has been made to solve the above-described problems, and aims to reduce the necessary material dimensions and improve the material yield.

この発明による可動接触装置の可動子受けは、可動子受けの基部につながり対向する接触面を有する接続導体部が、その脚部において、接触面が第１の折り曲げ線に沿って山折りで曲げられて形成されており、前記第１の折り曲げ線は、接触面の中心線に対して互いに離れるような所定の鋭角θ１を有して設けられた脚部に在って、前記中心線に対して垂直に設けられたものであり、また接続導体部は脚部において第２の折り曲げ線に沿って基部に接し、かつ接触面が中心線に対して所定の間隔を有するよう谷折りで曲げられて形成されており、前記第２の折り曲げ線は脚部に在って前記中心線に対して所定の鋭角θ２を有して設けられたものである。 In the movable contact receiver of the movable contact device according to the present invention, the connecting conductor portion having a contact surface connected to and opposed to the base portion of the mover receiver has its contact surface bent at a mountain fold along the first fold line. The first fold line is on a leg provided with a predetermined acute angle θ 1 that is separated from the center line of the contact surface, and the center line is The connecting conductor portion is bent at a valley fold so that the connecting conductor portion is in contact with the base portion along the second fold line at the leg portion and the contact surface has a predetermined interval with respect to the center line. The second fold line is provided at a leg portion and having a predetermined acute angle θ 2 with respect to the center line.

この発明による可動接触子の可動受けは、上記のような構成を有しているので、従来に比較して可動子受けの折り曲げ前の材料展開状態がコンパクトになることから、必要な材料寸法を小さくでき、かつ材料歩留りを向上させることができる。   Since the movable receiver of the movable contact according to the present invention has the above-described configuration, the material unfolded state before bending of the movable receiver is more compact than the conventional one. It can be made small and the material yield can be improved.

実施の形態１の可動接触装置の要部断面を示す図である。It is a figure which shows the principal part cross section of the movable contact apparatus of Embodiment 1. FIG. 実施の形態１の可動子受けを示す斜視図である。FIG. 3 is a perspective view showing a mover receiver according to the first embodiment. 実施の形態１の可動子受け形成前の展開図である。FIG. 3 is a development view before formation of a mover receiver according to the first embodiment. 従来の可動子受けを示す斜視図である。It is a perspective view which shows the conventional needle | mover receiver.

実施の形態１．
図１は、この発明における実施の形態１における可動接触装置の要部を断面した平面図を示す。
図２は、実施の形態１の可動子受け３の斜視図を示す。
図３は、可動子受け３の形成前の展開図を示す。
図１において合成樹脂材料で形成されたクロスバー１は、本体ケース（図示せず）に回動自在に支承されている。銅等の導電性の板を折り曲げて形成された可動子受け２は、図２に示すように、本体ケース（図示せず）に装着される基部２ａと、この基部２ａから直角に立ち上げられて、先端が平行に対向する一対の接続導体部２ｂと、この一対の接続導体部２ｂの一端部から相対向する方向に突出した図１に示すように一対の突出部の接触面２ｃとで構成されている。可動接触子３は、先端部に可動接点（図示せず）が固着され、後端部の貫通孔（図示せず）に可動子受け２の一対の突出部の接触面２ｃが嵌装され、可動接触子３が回動自在に保持されている。４は接圧バネであり、１対のコイルバネ部４ａと、このコイルバネ部４ａを連結するように延びるコの字状の腕伏せバネ部４ｂと、腕伏せバネ部４ｂとは反対方向に延長されクロスバー１の係止部１ａと係合する足部４ｃとで形成されている。 Embodiment 1 FIG.
FIG. 1 is a plan view showing a cross section of the main part of the movable contact device according to Embodiment 1 of the present invention.
FIG. 2 is a perspective view of the mover receiver 3 according to the first embodiment.
FIG. 3 shows a development view before the mover receiver 3 is formed.
In FIG. 1, a cross bar 1 formed of a synthetic resin material is rotatably supported by a main body case (not shown). As shown in FIG. 2, a mover receiver 2 formed by bending a conductive plate such as copper is raised at a right angle from a base portion 2a attached to a main body case (not shown) and the base portion 2a. The pair of connecting conductor portions 2b whose front ends are parallel to each other, and the contact surfaces 2c of the pair of protruding portions as shown in FIG. 1 that protrude in opposite directions from one end of the pair of connecting conductor portions 2b. It is configured. The movable contact 3 has a movable contact (not shown) fixed to the tip, and a contact surface 2c of a pair of projecting portions of the mover receiver 2 is fitted into a through hole (not shown) at the rear end. The movable contact 3 is rotatably held. Reference numeral 4 denotes a contact pressure spring, which is extended in the opposite direction to the pair of coil spring portions 4a, the U-shaped arm-spring spring portion 4b extending so as to connect the coil spring portions 4a, and the arm-spring spring portion 4b. The cross bar 1 is formed with a foot portion 4 c that engages with the locking portion 1 a of the cross bar 1.

図２の接続導体部２ｂは可動接触子３の板厚寸法Ｔよりもやや狭い間隔寸法ｔで平行に折り曲げられ、組込時にはこれを押し広げ撓ませることで可動接触子３が挿入される。従って、接続導体部２ｂは、可動接触子３の後端部３ａを弾性的に挟持して、可動接触子３の両側の側面３ｂに摺動接触し、可動接触子３の両側の側面３ｂと摺動可能なように電気的に接触させて通電経路を確保している。
接圧バネ４はコイルバネ部４ａの内側端面が可動接触子３を挟持した一対の接続導体部２ｂの外側側面と、外側の端面がクロスバー１の凹部（図示せず）の壁面の間に圧縮された状態で嵌装され、１対のコイルバネ部４ａにより、１対の接続導体部２ｂの外側から接続導体部２ｂを可動接触子３の側面（図示せず）に押圧することにより、接続部の接触圧力が得られると共に、接圧バネ足部４ｃがクロスバー１の係止部１ａに係合し、腕伏バネ部４ｂが可動接触子３の背面３ａに掛かり、この腕伏せバネ部４ｂに生じるモーメントによって可動接触子３に回転モーメントを与え、これにより固定接点と可動接点の接触圧力を発生させている。 The connecting conductor portion 2b in FIG. 2 is bent in parallel with an interval dimension t slightly narrower than the plate thickness dimension T of the movable contact 3, and when assembled, the movable contact 3 is inserted by pushing and bending it. Accordingly, the connecting conductor portion 2b elastically holds the rear end portion 3a of the movable contact 3 and makes sliding contact with the side surfaces 3b on both sides of the movable contact 3. An electrical conduction path is secured by electrical contact so as to be slidable.
In the contact pressure spring 4, the inner end surface of the coil spring portion 4a is compressed between the outer side surface of the pair of connecting conductor portions 2b sandwiching the movable contact 3, and the outer end surface is compressed between the wall surfaces of the recesses (not shown) of the cross bar 1. The connection portion is mounted by pressing the connection conductor portion 2b against the side surface (not shown) of the movable contact 3 from the outside of the pair of connection conductor portions 2b by the pair of coil spring portions 4a. The contact pressure spring foot 4c engages with the locking portion 1a of the crossbar 1, and the arm spring 4b is hooked on the back surface 3a of the movable contact 3, and the arm spring 4b. Rotation moment is given to the movable contact 3 by the moment generated in this, and thereby the contact pressure between the fixed contact and the movable contact is generated.

可動子受け２は、銅等の導電性の板材を折り曲げることにより、可動接触子３との接続部分となる可動子受け２の接続導体部２ｂを形成しているが、図１のような可動子受け２の形状にするために、この実施の形態１では、図３の可動子受け形成前の展開図に示すように、成形前の可動子受け２ｅの対向する接続導体部２ｂの接触面２ｃの中心線Ｙ−Ｙに対して、互いに離れるような所定の鋭角θ１を有して前記可動子受け２ｅの基部２ａから、前記対向する接続導体部２ｂにつながる脚部２ｄ面の前記接触面２ｃに在り、前記中心線Ｙ−Ｙに対して垂直方向に設けられた第１の折り曲げ線１０に沿って、前記接続導体部２ｂを山折りで折り曲げるとともに、前記脚部２ｄ面に在り、前記中心線Ｙ−Ｙに対して所定の鋭角θ２を有して設けられた第２の折り曲げ線１１に沿って、前記基部２ａに接しかつ前記接触面２ｃが前記中心線Ｙ−Ｙに対して所定の間隔ｔを有して、互いに対向するよう谷折りで折り曲げて形成される。
なお、図２には接続導体部２ｂが基部２ａに対して、直角となるような立上げ角θ３で折り曲げられているが、必ずしもこれに限ることなく可動接触装置の構造によっては立上げ角θ３が鋭角あるいは鈍角となるように折り曲げる場合であっても本実施の形態１による形成方法は適用できる。
その結果、図２のような互いに平行な１対の接続導体部２ｂを持った可動子受け２を形成することができる。以上から、回路遮断器における可動接触装置において、必要な通電容量を確保するための所定の断面積が確保でき、また可動接触子３の寸法ばらつきを許容した可動接触子３と可動子受け２の組立が可能となり、また可動接触子３と可動子受け２の接続を許容するための可動子受け２の撓み量を確保できる。
そして上記のような方法によって形成された構成を有しているので、可動子受け２の形成における材料の必要寸法が小さくなる。
この材料歩留り向上は、各定格容量を有する回路遮断器の可動受けの材料が１０〜２０％程度低減され、省資源、原材料の減量化等およびこれに起因するエネルギー消費量の削減や生産工程に於ける歩留りの向上等々の優れた効果がある。 The mover receiver 2 forms a connection conductor portion 2b of the mover receiver 2 which is a connection portion with the movable contact 3 by bending a conductive plate material such as copper. In order to make the shape of the child receiver 2, in the first embodiment, as shown in the development view before the formation of the mover receiver in FIG. 3, the contact surface of the connecting conductor portion 2b facing the mover receiver 2e before molding is shown. 2c with respect to the center line Y-Y of the base portion 2a of a predetermined acute angle theta 1 receives the mover has a 2e as away from each other, the contact of the leg portion 2d surface leading to the connection conductor portions 2b of the counter The connecting conductor portion 2b is folded in a mountain fold along the first fold line 10 provided on the surface 2c and perpendicular to the center line YY, and on the leg portion 2d surface, et provided having a predetermined acute angle theta 2 with respect to the center line Y-Y Along the second fold line 11, the contact surface 2 c is in contact with the base portion 2 a and has a predetermined interval t with respect to the center line YY, and is bent by valley folds so as to face each other. Is done.
Incidentally, with respect to the connection conductor portions 2b are bases 2a in FIG. 2, but is bent at startup angle theta 3 such that perpendicular, startup angle always according to the structure of the moving contact device without limited thereto forming method according to the first but the present embodiment in a case where the theta 3 is folded such that the acute or obtuse can be applied.
As a result, the mover receiver 2 having a pair of connecting conductor portions 2b parallel to each other as shown in FIG. 2 can be formed. From the above, in the movable contact device in the circuit breaker, it is possible to secure a predetermined cross-sectional area for securing a necessary energization capacity, and allow the dimensional variation of the movable contact 3 and the movable contact 3. Assembling is possible, and the amount of bending of the mover receiver 2 for allowing the connection between the movable contact 3 and the mover receiver 2 can be secured.
And since it has the structure formed by the above methods, the required dimension of the material in formation of the needle | mover receiver 2 becomes small.
This material yield improvement is achieved by reducing the material of the movable receiver of the circuit breaker having each rated capacity by about 10 to 20%, saving resources, reducing the amount of raw materials, and reducing the energy consumption resulting from this and the production process. There are excellent effects such as improvement in yield.

この発明は、電力回路に用いられている回路遮断器の可動接触装置用可動子受けに利用可能である。   The present invention is applicable to a movable element receiver for a movable contact device of a circuit breaker used in a power circuit.

２ 可動子受け、２ａ 基部、２ｂ 接続導体部、２ｃ 接触面、２ｄ 脚部、
１０ 第１の折り曲げ線、１１ 第２の折り曲げ線、θ１，θ２ 所定の鋭角、
θ３ 立上げ角、Ｙ−Ｙ 中心線。 2 mover receiver, 2a base, 2b connecting conductor, 2c contact surface, 2d leg,
10 first fold line, 11 second fold line, θ 1 , θ 2 predetermined acute angle,
θ 3 start-up angle, Y-Y center line.

Claims (3)

可動接触装置の可動子受けであって、
前記可動子受けの基部につながり対向する接触面を有する接続導体部がその脚部において、前記接触面が第１の折り曲げ線に沿って山折りで曲げられて形成されており、
前記第１の折り曲げ線は、前記接触面の中心線に対して互いに離れるような所定の鋭角θ１を有して設けられた前記脚部に在って、前記中心線に対して垂直に設けられたものであり、また前記接続導体部は前記脚部において第２の折り曲げ線に沿って前記基部に接し、かつ前記接触面が前記中心線に対して所定の間隔を有するよう谷折りで曲げられて形成されており、前記第２の折り曲げ線は前記脚部に在って前記中心線に対して所定の鋭角θ２を有して設けられたものであることを特徴とする可動接触装置の可動子受け。 A mover receiver for a movable contact device,
The connecting conductor portion having a contact surface connected to and opposed to the base portion of the mover receiver is formed by bending the contact surface in a mountain fold along the first fold line,
The first fold line is provided on the leg portion having a predetermined acute angle θ 1 that is separated from the center line of the contact surface, and is provided perpendicular to the center line. The connecting conductor portion is bent at a valley fold so that the leg contacts the base portion along a second fold line at the leg portion, and the contact surface has a predetermined interval with respect to the center line. The movable contact device is characterized in that the second folding line is provided at the leg portion and having a predetermined acute angle θ 2 with respect to the center line. Mover receiver. 次のステップを有することを特徴とする可動接触装置の可動子受けの形成方法。
（１）可動子受けの基部につながり対向する接触面を有する接続導体部とその脚部において、前記接触面の中心線に対して互いに離れるような所定の鋭角θ１を有して設けられた前記脚部に在って、前記中心線に対して垂直に設けられた第１の折り曲げ線に沿って、前記接触面を山折りに曲げるステップ。
（２）前記接続導体部が前記脚部において、前記基部に接するとともに、前記中心線に対して所定の鋭角θ２を有して設けられた第２の折り曲げ線に沿って前記接触面が前記中心線に対して所定の間隔を有するように前記接続導体部を谷折りに曲げるステップ。 A method for forming a mover receiver of a movable contact device, comprising the following steps.
(1) The connecting conductor portion having the contact surface connected to the base portion of the mover receiver and the leg portion thereof are provided with a predetermined acute angle θ 1 that is separated from the center line of the contact surface. Bending the contact surface in a mountain fold along a first fold line provided on the leg and perpendicular to the center line.
(2) In the leg portion, the connection conductor portion is in contact with the base portion, and the contact surface extends along a second fold line provided with a predetermined acute angle θ 2 with respect to the center line. Bending the connection conductor portion into a valley fold so as to have a predetermined interval with respect to the center line. 前記可動子受けが、プレス加工によって形成されることを特徴とする請求項２に記載の可動接触装置の可動子受けの形成方法。 The method for forming a mover receiver for a movable contact device according to claim 2, wherein the mover receiver is formed by press working.
JP2009148146A 2009-06-23 2009-06-23 Mover receiver for movable contact device and method for forming the same Expired - Fee Related JP5226614B2 (en)

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JP2009148146A JP5226614B2 (en) 2009-06-23 2009-06-23 Mover receiver for movable contact device and method for forming the same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016015262A (en) * 2014-07-02 2016-01-28 河村電器産業株式会社 Movable contact device of circuit breaker
CN107104024A (en) * 2017-06-19 2017-08-29 泉州市大西洋电力科技有限公司 The moving contact component assembling device of breaker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11306950A (en) * 1998-04-21 1999-11-05 Mitsubishi Electric Corp Circuit breaker
JP2000208020A (en) * 1998-11-10 2000-07-28 Mitsubishi Electric Corp Circuit breaker
JP2000268697A (en) * 1999-03-19 2000-09-29 Mitsubishi Electric Corp Movable contact device for circuit breaker
JP2007149528A (en) * 2005-11-29 2007-06-14 Mitsubishi Electric Corp Circuit breaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11306950A (en) * 1998-04-21 1999-11-05 Mitsubishi Electric Corp Circuit breaker
JP2000208020A (en) * 1998-11-10 2000-07-28 Mitsubishi Electric Corp Circuit breaker
JP2000268697A (en) * 1999-03-19 2000-09-29 Mitsubishi Electric Corp Movable contact device for circuit breaker
JP2007149528A (en) * 2005-11-29 2007-06-14 Mitsubishi Electric Corp Circuit breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016015262A (en) * 2014-07-02 2016-01-28 河村電器産業株式会社 Movable contact device of circuit breaker
CN107104024A (en) * 2017-06-19 2017-08-29 泉州市大西洋电力科技有限公司 The moving contact component assembling device of breaker

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