JP6689469B1 - Electromagnetic contactor - Google Patents

Electromagnetic contactor Download PDF

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JP6689469B1
JP6689469B1 JP2019551408A JP2019551408A JP6689469B1 JP 6689469 B1 JP6689469 B1 JP 6689469B1 JP 2019551408 A JP2019551408 A JP 2019551408A JP 2019551408 A JP2019551408 A JP 2019551408A JP 6689469 B1 JP6689469 B1 JP 6689469B1
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electric wire
electromagnetic contactor
holder
insertion port
wire insertion
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JPWO2020208758A1 (en
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林　亨
亨 林
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Mitsubishi Electric Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

電磁接触器は、不動部位（６１）と可撓部位（６２）との間に配置された電線（４２）の軸方向の動きを抑制する電線ホルダ（４１）を備え、不動部位（６１）及び可撓部位（６２）の各々は、平面同士の交線によって形成されて電線（４２）の軸方向に直交する方向に延びるエッジを備えた角部（６４，６５，６６，６７，６８）を有し、不動部位（６１）の角部（６６，６７）と可撓部位（６２）の角部（６４，６５，６８）とは、電線（４２）の軸方向において異なる位置に設けられている。The electromagnetic contactor includes an electric wire holder (41) that suppresses an axial movement of the electric wire (42) arranged between the immovable part (61) and the flexible part (62). Each of the flexible parts (62) has a corner portion (64, 65, 66, 67, 68) having an edge formed by an intersection line between planes and extending in a direction orthogonal to the axial direction of the electric wire (42). The corner portions (66, 67) of the stationary portion (61) and the corner portions (64, 65, 68) of the flexible portion (62) are provided at different positions in the axial direction of the electric wire (42). There is.

Description

本発明は、電流路の開閉を行う電磁接触器に関する。   The present invention relates to an electromagnetic contactor that opens and closes a current path.

電磁接触器は、電源と負荷との間の電流路に設置され、電流路の開閉を行うために用いられる。電磁接触器において、電線を固定する端子には、被覆を剥いた電線の端部をスプリングの圧力で挟むスプリング式と、被覆を剥いた電線の端部をねじで挟むねじ式とが用いられている。   The electromagnetic contactor is installed in the current path between the power supply and the load and is used to open and close the current path. In the electromagnetic contactor, the terminals for fixing the electric wire are of a spring type in which the end of the stripped electric wire is sandwiched by the pressure of a spring and a screw type in which the end of the stripped electric wire is sandwiched by a screw. There is.

スプリング式端子は、固定された導電性金具と可動するスプリングとの間に電線の導体部を挟み、電線の導体部と導電性金具との間の導通を確保する端子である。スプリング式端子は、スプリングの作用によって常時接圧が確保されており、ねじ式とは違い配線時にスキルを必要とせず誰が配線しても品質が安定している。また、スプリング式端子は、配線後時間が経過しても緩みがなくメンテナンス性が良好である。   A spring-type terminal is a terminal that sandwiches a conductor portion of an electric wire between a fixed conductive metal fitting and a movable spring to ensure conduction between the conductor portion of the electric wire and the conductive metal fitting. The spring-type terminal has a constant contact pressure due to the action of the spring, and unlike the screw-type terminal, no skill is required for wiring, and the quality is stable regardless of who wires. Further, the spring type terminal does not loosen even after a lapse of time after wiring and has good maintainability.

端子へ配線した電線は、電磁接触器を取り付けている盤面の間近で配線される場合が多いため、端子が配置されている電線挿入口から湾曲して盤面方向へ向かう。盤面方向へ向かう電線は束にしてインシュロックで纏められ盤面へ固定される。   Since the electric wire wired to the terminal is often wired near the board surface on which the electromagnetic contactor is attached, the electric wire is curved from the electric wire insertion port in which the terminal is arranged and goes toward the board surface. The wires traveling in the board surface direction are bundled together and fixed to the board surface with an insulock.

盤面上の電線は固定されているが、電磁接触器は自らの動作で振動している。このため、電線をスプリング端子へ直接配線した場合、制御盤若しくは装置の振動又はコンタクタ自体の動作振動により電線が振られ、スプリングと電線導体部の接触部で電線導体が断線する可能性がある。特に電線が撚線の場合には電線自体が細いため断線の可能性が高くなる。   The electric wire on the board is fixed, but the electromagnetic contactor vibrates by its own action. Therefore, when the electric wire is directly connected to the spring terminal, the electric wire may be shaken by the vibration of the control panel or the device or the operational vibration of the contactor itself, and the electric wire conductor may be broken at the contact portion between the spring and the electric wire conductor portion. In particular, when the electric wire is a stranded wire, the electric wire itself is thin, so that the possibility of disconnection increases.

特許文献１には、端子に配線した電線を保持する保持突起部を備えた電磁接触器が開示されている。特許文献１に開示される電磁接触器は、保持突起部の板状の部分と載置板で電線を挟持することにより電線を固定している。   Patent Document 1 discloses an electromagnetic contactor including a holding protrusion that holds an electric wire wired to a terminal. In the electromagnetic contactor disclosed in Patent Document 1, the electric wire is fixed by sandwiching the electric wire between the plate-shaped portion of the holding protrusion and the mounting plate.

特開２０１８−１１３１４１号公報JP, 2018-113141, A

特許文献１に開示される電磁接触器は、板状の部分同士で電線を挟持しているため、電線を挟持する圧力が分散してしまう。このため、電磁接触器に振動が発生した際に電線の軸方向に電線がずれてしまうことがある。電線が軸方向にずれてしまうと、制御盤若しくは装置の振動又はコンタクタ自身の動作振動による電線の振れが大きくなり、断線が生じやすくなる。   Since the electromagnetic contactor disclosed in Patent Document 1 holds the electric wire between the plate-shaped portions, the pressure for holding the electric wire is dispersed. Therefore, when the electromagnetic contactor vibrates, the electric wire may be displaced in the axial direction of the electric wire. When the electric wire is displaced in the axial direction, the vibration of the electric wire is increased due to the vibration of the control panel or the device or the operational vibration of the contactor itself, and the wire is easily broken.

本発明は、上記に鑑みてなされたものであって、端子に配線した電線の断線を抑制できる電磁接触器を得ることを目的とする。   The present invention has been made in view of the above, and an object of the present invention is to obtain an electromagnetic contactor capable of suppressing disconnection of an electric wire wired to a terminal.

上述した課題を解決し、目的を達成するために、本発明は、第１の部位と、第１の部位に対向する第２の部位とを有し、第１の部位と第２の部位との間に配置された電線の軸方向の動きを抑制する電線ホルダを備える。第１の部位及び第２の部位の各々は、平面同士の交線によって形成されて電線の軸方向に直交する方向に延びるエッジを備え、電線の被覆に接する角部を少なくとも一つ有する。第１の部位の角部と第２の部位の角部とは、電線の軸方向において異なる位置に設けられている。   In order to solve the above-mentioned problems and to achieve the object, the present invention has a first part and a second part facing the first part, and a first part and a second part. An electric wire holder that suppresses an axial movement of the electric wire disposed between the electric wires. Each of the first portion and the second portion has an edge formed by a line of intersection between planes and extending in a direction orthogonal to the axial direction of the electric wire, and has at least one corner portion in contact with the coating of the electric wire. The corner portion of the first portion and the corner portion of the second portion are provided at different positions in the axial direction of the electric wire.

本発明に係る電磁接触器は、端子に配線した電線の断線を抑制できるという効果を奏する。   INDUSTRIAL APPLICABILITY The electromagnetic contactor according to the present invention has an effect of suppressing disconnection of the electric wire wired to the terminal.

本発明の実施の形態１に係る電磁接触器の斜視図1 is a perspective view of an electromagnetic contactor according to a first embodiment of the present invention. 実施の形態１に係る電磁接触器の正面図Front view of the electromagnetic contactor according to the first embodiment 実施の形態１に係る電磁接触器の断面図Sectional drawing of the electromagnetic contactor which concerns on Embodiment 1. 実施の形態１に係る電磁接触器の電線ホルダへ固定部位と不動部位との間隔よりも太い電線を配置した状態を示す図The figure which shows the state which has arrange | positioned the electric wire thicker than the space | interval of a fixed part and an immovable part to the electric wire holder of the electromagnetic contactor which concerns on Embodiment 1. 実施の形態１に係る電磁接触器の電線ホルダへ固定部位と不動部位との間隔よりも細い電線を配置した状態を示す図The figure which shows the state which has arrange | positioned the electric wire thinner than the space | interval of a fixed part and an immovable part to the electric wire holder of the electromagnetic contactor which concerns on Embodiment 1. 実施の形態１に係る電磁接触器に接続する配線にナンバーチューブを取り付けた状態を示す図The figure which shows the state which attached the number tube to the wiring connected to the electromagnetic contactor which concerns on Embodiment 1. 実施の形態１に係る電磁接触器の断面図Sectional drawing of the electromagnetic contactor which concerns on Embodiment 1. 実施の形態１に係る電磁接触器の側面図Side view of the electromagnetic contactor according to the first embodiment

以下に、本発明の実施の形態に係る電磁接触器を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。   Hereinafter, an electromagnetic contactor according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

実施の形態１．
図１は、本発明の実施の形態１に係る電磁接触器の斜視図である。図２は、実施の形態１に係る電磁接触器の正面図である。図３は、実施の形態１に係る電磁接触器の断面図である。図３は、図２中のIII-III線に沿った断面を示している。図４は、実施の形態１に係る電磁接触器の電線ホルダへ固定部位と不動部位との間隔よりも太い電線を配置した状態を示す図である。電磁接触器４０は、負荷機器への電流を閉路又は開路する。電磁接触器４０は、電源側の電線挿入口１と、負荷側の電線挿入口２と、信号線を配線するための電線挿入口３と、電磁接触器４０の駆動用の電線挿入口４とを備える。なお、電線挿入口１と電線挿入口２と電線挿入口３との形状は同じである。Embodiment 1.
1 is a perspective view of an electromagnetic contactor according to a first embodiment of the present invention. FIG. 2 is a front view of the electromagnetic contactor according to the first embodiment. FIG. 3 is a cross-sectional view of the electromagnetic contactor according to the first embodiment. FIG. 3 shows a cross section taken along line III-III in FIG. FIG. 4 is a diagram showing a state in which an electric wire thicker than the distance between the fixed part and the immovable part is arranged in the electric wire holder of the electromagnetic contactor according to the first embodiment. The electromagnetic contactor 40 closes or opens the current to the load device. The electromagnetic contactor 40 includes a wire insertion port 1 on the power supply side, a wire insertion port 2 on the load side, a wire insertion port 3 for wiring a signal line, and a wire insertion port 4 for driving the electromagnetic contactor 40. Equipped with. The electric wire insertion port 1, the electric wire insertion port 2, and the electric wire insertion port 3 have the same shape.

電線挿入口１，２，３，４には、固定された導電性金具２１と可動するスプリング２０との間に電線４２の導体部を挟み、電線導体部２３と導電性金具２１との間の導通を確保するスプリング式端子３０が設置されている。スプリング式端子３０は、被覆を剥いた電線４２をスプリング２０で直接挟んで配線可能な構造となっている。電線挿入口１，２，３，４には、筒状部４３ａを有する挿入口部材４３が設置されており、筒状部４３ａに電線４２の端部を挿入すると、導電性金具２１とスプリング２０との間に電線４２の端部が案内されるようになっている。電線挿入口１，２，３，４に設置されたスプリング式端子３０は、常時接圧が確保されており、ねじ式とは違い配線時にスキルを必要とせず誰が配線しても品質が安定している。スプリング式端子３０は、配線後時間が経過しても緩みがなくメンテナンス性が良好である。このように、電線挿入口１，２，３，４は、挿入された電線４２と電気的に接続される端子であるスプリング式端子３０を備えた構造となっている。   At the electric wire insertion ports 1, 2, 3, and 4, the conductor portion of the electric wire 42 is sandwiched between the fixed conductive metal fitting 21 and the movable spring 20, and the electric conductor 42 between the electric wire conductor portion 23 and the conductive metal fitting 21 is inserted. A spring-type terminal 30 for ensuring continuity is installed. The spring-type terminal 30 has a structure in which the stripped electric wire 42 can be directly sandwiched between the springs 20 for wiring. An insertion port member 43 having a tubular portion 43a is installed in each of the electrical wire insertion ports 1, 2, 3, and 4. When the end portion of the electrical wire 42 is inserted into the tubular portion 43a, the conductive metal fitting 21 and the spring 20 are inserted. The end of the electric wire 42 is guided between and. The spring type terminals 30 installed in the wire insertion ports 1, 2, 3 and 4 are always kept in contact pressure, and unlike the screw type, skill is not required when wiring and the quality is stable regardless of who is wiring. ing. The spring type terminal 30 does not loosen even after a lapse of time after wiring and has good maintainability. As described above, the wire insertion ports 1, 2, 3, 4 have a structure including the spring-type terminal 30 which is a terminal electrically connected to the inserted wire 42.

電磁接触器４０は、電線４２を挿入又は取り外しするための工具挿入口５が設けられている。電磁接触器４０は、工具挿入口５に操作工具を挿入してスプリング２０を解放した上で電線４２の挿入又は取り外しが行われる。   The electromagnetic contactor 40 is provided with a tool insertion port 5 for inserting or removing the electric wire 42. In the electromagnetic contactor 40, the operation tool is inserted into the tool insertion port 5 to release the spring 20, and then the electric wire 42 is inserted or removed.

また、電磁接触器４０は、電線挿入口３の周辺に電線ホルダ４１が設けられている。電線ホルダ４１は、第１の部位である不動部位６１と第２の部位である可撓部位６２とを備えている。不動部位６１は、位置が固定されており、可撓部位６２は、弾性を有しており不動部位６１に対向して配置されている。可撓部位６２は、不動部位６１からアーチ状に立ち上がって片持ち支持されることによって弾性が与えられている。電線挿入口３へ配線した電線４２は、湾曲させて電線ホルダ４１へ通し盤面６に向けて這わせて設置される。電線ホルダ４１は、開口部４４が形成されており、不動部位６１と可撓部位６２とが繋がっていない部分が設けられている。したがって、電線ホルダ４１は、電線挿入口３へ電線４２を配線後でも電線４２を配置可能である。   Further, in the electromagnetic contactor 40, a wire holder 41 is provided around the wire insertion port 3. The electric wire holder 41 includes a fixed portion 61 that is a first portion and a flexible portion 62 that is a second portion. The fixed portion 61 has a fixed position, and the flexible portion 62 has elasticity and is arranged to face the fixed portion 61. The flexible portion 62 is provided with elasticity by standing up in an arch shape from the non-moving portion 61 and being cantilevered. The electric wire 42 laid in the electric wire insertion port 3 is bent and laid through the electric wire holder 41 toward the board surface 6 to be installed. The wire holder 41 has an opening 44 formed therein, and is provided with a portion where the immovable portion 61 and the flexible portion 62 are not connected. Therefore, the electric wire holder 41 can arrange the electric wire 42 even after the electric wire 42 is wired to the electric wire insertion port 3.

不動部位６１は、第１不動面７１と第２不動面７０とを有する。第１不動面７１は、電磁接触器４０のうち盤面６への取付面４５に垂直な平面となっている。第２不動面７０は、電線挿入口１，２，３の筒状部４３ａの軸方向と平行な平面となっている。第１不動面７１と第２不動面７０との境界の角部６７には、丸み面取りはなされていない。また、第１不動面７１のうち角部６７とは反対側の境界の角部６６には、丸み面取りはなされていない。したがって、角部６６，６７は、平面同士の交線によって形成されるエッジを有している。角部６６，６７のエッジは、電線ホルダ４１に電線４２を配置したときに、電線４２の軸方向に直交する方向に延びている。   The stationary portion 61 has a first stationary surface 71 and a second stationary surface 70. The first immovable surface 71 is a flat surface perpendicular to the mounting surface 45 of the electromagnetic contactor 40 on the board surface 6. The second immovable surface 70 is a flat surface parallel to the axial direction of the tubular portion 43a of the wire insertion ports 1, 2, 3. The corner portion 67 of the boundary between the first immovable surface 71 and the second immovable surface 70 is not rounded and chamfered. Further, the corner portion 66 of the first immovable surface 71 on the opposite side of the corner portion 67 is not rounded and chamfered. Therefore, the corner portions 66 and 67 have edges formed by the intersecting lines of the planes. The edges of the corner portions 66 and 67 extend in a direction orthogonal to the axial direction of the electric wire 42 when the electric wire 42 is arranged in the electric wire holder 41.

可撓部位６２は第１可撓面７２と、第２可撓面７３と、第２可撓面７３から垂直に突出している突起６３を有する。突起６３は、可撓部位６２から不動部位６１に向かって延びている。第１可撓面７２と第２可撓面７３との境界の角部６８には、丸み面取りはなされていない。また、第１可撓面７２のうち角部６８とは反対側の境界の角部６９には、丸み面取りはなされていない。突起６３の先端面に隣接する角部６４，６５には、丸み面取りはなされていない。したがって、角部６４，６５，６８，６９は、平面同士の交線によって形成されるエッジを有している。角部６４，６５，６８，６９のエッジは、電線ホルダ４１に電線４２を配置したときに、電線４２の軸方向に直交する方向に延びている。   The flexible portion 62 has a first flexible surface 72, a second flexible surface 73, and a protrusion 63 that vertically projects from the second flexible surface 73. The protrusion 63 extends from the flexible portion 62 toward the immovable portion 61. The corner portion 68 of the boundary between the first flexible surface 72 and the second flexible surface 73 is not rounded and chamfered. Further, the corner portion 69 of the first flexible surface 72 on the opposite side of the corner portion 68 is not rounded and chamfered. The corner portions 64 and 65 adjacent to the tip end surface of the protrusion 63 are not rounded and chamfered. Therefore, the corners 64, 65, 68, 69 have edges formed by the lines of intersection of the planes. The edges of the corner portions 64, 65, 68, 69 extend in a direction orthogonal to the axial direction of the electric wire 42 when the electric wire 42 is arranged in the electric wire holder 41.

また、電磁接触器４０は、電線挿入口４の周辺に電線ホルダ４６が設けられている。電線ホルダ４６は、第１の部位である不動部位９３と第２の部位である可撓部位９２とを備えている。不動部位９３は、位置が固定されており、可撓部位９２は、弾性を有しており不動部位９３に対向して配置されている。可撓部位９２は、不動部位９３から立ち上がって片持ち支持状態のアーチ状とされることによって弾性が与えられている。電線挿入口４へ配線した電線４２は、湾曲させて電線ホルダ４６へ通し盤面６へ向けて這わせて設置される。電線ホルダ４６は、開口部４７が形成されており、不動部位９３と可撓部位９２とが繋がっていない部分が設けられているため、電線挿入口４へ電線４２を配線後でも電線４２を配置可能である。   Further, in the electromagnetic contactor 40, an electric wire holder 46 is provided around the electric wire insertion port 4. The electric wire holder 46 includes a fixed portion 93 that is a first portion and a flexible portion 92 that is a second portion. The fixed portion 93 has a fixed position, and the flexible portion 92 has elasticity and is arranged to face the fixed portion 93. The flexible portion 92 is provided with elasticity by standing up from the non-moving portion 93 and forming a cantilevered arch shape. The electric wire 42 laid in the electric wire insertion port 4 is bent and passed through the electric wire holder 46 and laid on the board surface 6 to be installed. Since the electric wire holder 46 is provided with the opening 47 and a portion where the immovable portion 93 and the flexible portion 92 are not connected, the electric wire 42 is arranged even after the electric wire 42 is wired to the electric wire insertion port 4. It is possible.

可撓部位６２は弾性を持っており、可撓部位６２に応力が加わっていない状態では不動部位６１に対して一定の間隔を保って配置されている。図４に示すように、スプリング式端子３０へ配線された電線４２は電線ホルダ４１内へ配置される。電線４２の軸方向と垂直な方向での不動部位６１と可撓部位６２の最大間隔は、電線ホルダ４１へ適用を想定しているうちで線径が最大である断面積０．７５ｍｍ２の電線の被覆外径φ２．５ｍｍよりも狭い２．４ｍｍ程度としている。これにより電線４２の被覆は、電線ホルダ４１の可撓部位６２の弾性により圧迫される。電線４２の被覆が圧迫される箇所は、角部６４，６５，６７，６８，６９である。なお、角部６４，６７は、電線ホルダ４１内に配置された電線４２に、電線４２の軸方向の異なる位置で接している。The flexible portion 62 has elasticity, and is arranged at a constant interval with respect to the immovable portion 61 when no stress is applied to the flexible portion 62. As shown in FIG. 4, the electric wire 42 wired to the spring type terminal 30 is arranged in the electric wire holder 41. The maximum distance between the immovable portion 61 and the flexible portion 62 in the direction perpendicular to the axial direction of the electric wire 42 is the electric wire having a cross-sectional area of 0.75 mm 2 having the largest wire diameter while assuming application to the electric wire holder 41. The outer diameter is about 2.5 mm, which is narrower than the outer diameter φ of 2.5 mm. As a result, the coating of the electric wire 42 is pressed by the elasticity of the flexible portion 62 of the electric wire holder 41. The portions where the coating of the electric wire 42 is pressed are the corner portions 64, 65, 67, 68, 69. The corners 64 and 67 are in contact with the electric wire 42 arranged in the electric wire holder 41 at different positions in the axial direction of the electric wire 42.

電線４２の被覆は、角部６４，６５，６７，６８，６９と電線４２の軸方向に垂直な方向で線接触する。さらに電線ホルダ４１内に配置された電線４２の被覆には、角部６４，６５，６７，６８，６９が線接触することにより、電線４２の軸方向において異なる位置で圧力が加わる。したがって、電線４２を電線ホルダ４１へ挿入するときは、電線４２の軸方向に垂直な向きで電線ホルダ４１内へ電線４２を挿入するため、電線４２を電線ホルダ４１内に挿入する動きを角部６４，６５，６７，６８，６９が抑制することはない。電線ホルダ４１内へ電線４２を配置した後は、電線４２の軸方向への電線４２の動きを角部６４，６５，６７，６８，６９が抑制する効果は大きい。   The coating of the electric wire 42 makes line contact with the corner portions 64, 65, 67, 68, 69 in a direction perpendicular to the axial direction of the electric wire 42. Further, since the corner portions 64, 65, 67, 68, 69 make line contact with the coating of the electric wire 42 arranged in the electric wire holder 41, pressure is applied at different positions in the axial direction of the electric wire 42. Therefore, when the electric wire 42 is inserted into the electric wire holder 41, the electric wire 42 is inserted into the electric wire holder 41 in a direction perpendicular to the axial direction of the electric wire 42. 64, 65, 67, 68, 69 do not suppress. After the electric wire 42 is arranged in the electric wire holder 41, the corner portions 64, 65, 67, 68, 69 have a great effect of suppressing the movement of the electric wire 42 in the axial direction of the electric wire 42.

図５は、実施の形態１に係る電磁接触器の電線ホルダへ固定部位と不動部位との間隔よりも細い電線を配置した状態を示す図である。電磁接触器４０のうち盤面６への取付面４５に垂直な第１不動面７１と角部６４との電線ホルダ４１内での距離は１．３ｍｍ程度としている。断面積０．３ｍｍ２の電線４２の電線被覆外径はφ１．５ｍｍ程度である。このためスプリング式端子３０へ配線された電線４２は、電線ホルダ４１内で角部６７及び角部６４に接する。5: is a figure which shows the state which has arrange | positioned the electric wire thinner than the space | interval of a fixed part and an immovable part to the electric wire holder of the electromagnetic contactor which concerns on Embodiment 1. FIG. The distance between the first immovable surface 71 of the electromagnetic contactor 40 perpendicular to the mounting surface 45 on the board surface 6 and the corner 64 in the electric wire holder 41 is about 1.3 mm. The electric wire coating outer diameter of the electric wire 42 having a cross-sectional area of 0.3 mm 2 is about φ1.5 mm. Therefore, the electric wire 42 wired to the spring type terminal 30 contacts the corner portion 67 and the corner portion 64 in the electric wire holder 41.

電線ホルダ４１へ細い電線４２を配置した場合には、電線４２に対する電線ホルダ４１の可撓部位６２の弾性圧力は無いが、電線４２の導体の弾性及び被覆の弾性により角部６７と角部６４とにおいて電線４２の軸方向に垂直な方向で線接触により電線被覆に圧力が加わる。したがって、電線ホルダ４１に太い電線４２を配置した場合ほどではないが、電線４２の軸方向へ電線４２が動くことを抑制する効果を得ることができる。   When the thin electric wire 42 is arranged in the electric wire holder 41, there is no elastic pressure of the flexible portion 62 of the electric wire holder 41 with respect to the electric wire 42, but due to the elasticity of the conductor of the electric wire 42 and the elasticity of the coating, the corner portion 67 and the corner portion 64. At and, pressure is applied to the wire coating by line contact in a direction perpendicular to the axial direction of the wire 42. Therefore, it is possible to obtain the effect of suppressing the movement of the electric wire 42 in the axial direction of the electric wire 42, though it is not so great as when the thick electric wire 42 is arranged in the electric wire holder 41.

電線４２を挿入口部材４３の近くで保持することにより、盤面６から配線された電線４２は一旦電線ホルダ４１で振動といった動きを抑制されてから挿入口部材４３を通じてスプリング式端子３０へ配線される。このため、スプリング２０と電線導体部２３との接触部での繰り返し応力が抑制されるため、電線導体部２３の断線を抑制することが可能となる。   By holding the electric wire 42 near the insertion port member 43, the electric wire 42 wired from the board surface 6 is temporarily suppressed by the electric wire holder 41 from vibrating, and then wired to the spring type terminal 30 through the insertion port member 43. . Therefore, the repeated stress at the contact portion between the spring 20 and the electric wire conductor portion 23 is suppressed, so that it is possible to suppress the wire breakage of the electric wire conductor portion 23.

図６は、実施の形態１に係る電磁接触器に接続する配線にナンバーチューブを取り付けた状態を示す図である。電磁接触器４０の電線４２には、ナンバーチューブ９５が取り付けられることがある。ナンバーチューブ９５は、電線４２を特定する番号札であり、線番と呼ばれることもある。ナンバーチューブ９５は、長さが１０ｍｍから３０ｍｍ程度の筒状で、筒の外側に配線の番号又は文字を印字している。筒の内側に電線４２を通して電線４２に取り付け、電線４２が何の線であるかを表示するものである。ナンバーチューブ９５は、電線４２に圧入されるタイプもあるが、大抵は圧入タイプではなく挿入して取り付けるだけのものであるため、電線４２に沿ってナンバーチューブ９５が移動してしまうことがある。   FIG. 6 is a diagram showing a state in which a license tube is attached to the wiring connected to the electromagnetic contactor according to the first embodiment. A number tube 95 may be attached to the electric wire 42 of the electromagnetic contactor 40. The number tube 95 is a number tag that identifies the electric wire 42 and is sometimes called a wire number. The number tube 95 has a tubular shape with a length of about 10 mm to 30 mm, and the wiring number or characters are printed on the outside of the tube. The electric wire 42 is attached to the electric wire 42 by passing the electric wire 42 through the inside of the cylinder, and what wire the electric wire 42 is is displayed. Although there is a type in which the number tube 95 is press-fitted into the electric wire 42, in most cases, the number tube 95 is not a press-fitted type and is merely inserted and attached. Therefore, the number tube 95 may move along the electric wire 42.

配線した電線４２をインシュロックで束ねることでナンバーチューブ９５の滑りを抑制する方法があるが、この方法はインシュロックを準備しなければならない。また、全ての電線４２の配線が完了した後で電線４２を束ねるため、初めのうちに配線した電線４２のナンバーチューブ９５が滑って移動してしまった場合には、元の位置に戻す作業が必要になり工数がかかる。   There is a method of suppressing slippage of the number tube 95 by bundling the wired electric wires 42 with an insulock, but this method requires preparation of an insurock. In addition, since the wires 42 are bundled after the wiring of all the wires 42 is completed, if the number tube 95 of the wires 42 that have been wired at the beginning slips and moves, it is necessary to return the wires to the original position. It will be necessary and time-consuming.

図６に示すように、実施の形態１に係る電磁接触器４０は、ナンバーチューブ９５を取り付けた電線４２を電線ホルダ４１へ通すことによりナンバーチューブ９５の滑りを防止できるためインシュロックを準備する必要がない。また電線ホルダ４１への電線４２の脱着がいつでも可能なため、電線ホルダ４１へ電線４２を１本ずつ配置してナンバーチューブ９５の滑りを防止することが可能である。   As shown in FIG. 6, the electromagnetic contactor 40 according to the first embodiment can prevent slippage of the number tube 95 by passing the electric wire 42 to which the number tube 95 is attached to the electric wire holder 41, so that it is necessary to prepare an insulock. Absent. Further, since the electric wires 42 can be attached to and detached from the electric wire holder 41 at any time, it is possible to arrange the electric wires 42 in the electric wire holder 41 one by one and prevent the number tube 95 from slipping.

図７は、実施の形態１に係る電磁接触器の断面図である。図７は、図２中のVII-VII線に沿った断面を示している。なお、図７には、図２では不図示の電線４２も図示している。電線ホルダ４６は、電線ホルダ４１とは構造が異なり、可撓部位９２に突起が設けられていない。電線ホルダ４６内の角部９１，９４，９６には、丸み面取りはなされていない。したがって、角部９１，９４，９６は、平面同士の交線によって形成されるエッジを有している。角部９１，９４，９６のエッジは、電線ホルダ４６に電線４２を配置したときに、電線４２の軸方向に直交する方向に延びている。   FIG. 7 is a sectional view of the electromagnetic contactor according to the first embodiment. FIG. 7 shows a cross section taken along line VII-VII in FIG. In addition, in FIG. 7, the electric wire 42 not shown in FIG. 2 is also illustrated. The electric wire holder 46 has a structure different from that of the electric wire holder 41, and the flexible portion 92 is not provided with a protrusion. The corner portions 91, 94, 96 in the electric wire holder 46 are not rounded and chamfered. Therefore, the corner portions 91, 94, 96 have edges formed by the intersecting lines of the planes. The edges of the corner portions 91, 94, 96 extend in a direction orthogonal to the axial direction of the electric wire 42 when the electric wire 42 is arranged in the electric wire holder 46.

電線ホルダ４６は、電線挿入口４の周辺に設けるため、電線挿入口４に配線した電線４２は、電線ホルダ４６と電線挿入口４との間で湾曲する。湾曲した電線４２が丸み面取りのなされていない角部９１，９４，９６の少なくとも一つに当たり、電線４２自体の弾性によって角部９１，９４，９６の少なくとも一つへ押し付けられ電線４２の軸方向と直角に線接触による圧力が電線４２に加わる。このことにより電線４２の軸方向への電線４２の移動が抑制される。   Since the electric wire holder 46 is provided around the electric wire insertion opening 4, the electric wire 42 wired in the electric wire insertion opening 4 is curved between the electric wire holder 46 and the electric wire insertion opening 4. The curved electric wire 42 hits at least one of the corner portions 91, 94, 96 which is not rounded and chamfered, and is pressed against the at least one of the corner portions 91, 94, 96 by the elasticity of the electric wire 42 itself and the axial direction of the electric wire 42. The pressure due to the line contact is applied to the electric wire 42 at a right angle. This suppresses the movement of the electric wire 42 in the axial direction of the electric wire 42.

図８は、実施の形態１に係る電磁接触器の側面図である。開口部４４の一方の縁である側面部１０１と他方の縁である可撓部位６２との間に段差１０６を設けている。また、開口部４７の一方の縁である不動部位９３の端面１０７と他方の縁である可撓部位９２との間に段差１０３を設けている。   FIG. 8 is a side view of the electromagnetic contactor according to the first embodiment. A step 106 is provided between the side surface portion 101 which is one edge of the opening 44 and the flexible portion 62 which is the other edge. Further, a step 103 is provided between the end surface 107 of the immovable portion 93 which is one edge of the opening 47 and the flexible portion 92 which is the other edge.

段差１０３，１０６に電線４２を引き掛けることにより、段差１０３，１０６が漏斗の役割を果たし、電線４２が電線ホルダ４１，４６の中へ案内される。したがって、段差１０３，１０６を設けることにより、電線４２を電線ホルダ４１，４６へ挿入する場合に電線４２挿入方向の自由度を持たせることができ、電線４２を電線ホルダ４１，４６に挿入しやすくなる。   By hooking the electric wire 42 on the steps 103 and 106, the steps 103 and 106 function as a funnel, and the electric wire 42 is guided into the electric wire holders 41 and 46. Therefore, by providing the steps 103 and 106, when the electric wire 42 is inserted into the electric wire holders 41 and 46, the degree of freedom in the electric wire 42 insertion direction can be provided, and the electric wire 42 can be easily inserted into the electric wire holders 41 and 46. Become.

実施の形態１に係る電磁接触器４０は、電線ホルダ４１，４６に配置した電線４２が、電線４２の軸方向にずれることを防止し、スプリング式端子３０に配線した電線４２の断線を抑制できる。   The electromagnetic contactor 40 according to the first embodiment can prevent the electric wires 42 arranged in the electric wire holders 41 and 46 from being displaced in the axial direction of the electric wires 42, and can prevent the electric wires 42 wired to the spring type terminals 30 from breaking. .

なお、電線挿入口１，２に挿入される電線は、信号線用の電線挿入口３に挿入される電線４２よりも太い電線であるため、信号用の電線４２に比べて強度が高い。したがって、電線挿入口１，２に挿入される電線は、電磁接触器４０に振動が生じても断線しにくい。このため、実施の形態１に係る電磁接触器４０は、信号線用の電線挿入口３の周辺のみに電線ホルダ４１を設け、電線挿入口３に挿入された電線４２を保持している。なお、実施の形態１において、電磁接触器４０は、電源側の電線挿入口１及び負荷側の電線挿入口２を備えるが、信号線を配線するための電線挿入口３のみを備えた構成の場合には、全ての電線挿入口３の周囲に電線ホルダ４１を設ければよい。また、実施の形態１において、電磁接触器４０は、複数の電線挿入口１，２の列の両端に電線挿入口３が設けられているが、複数の電線挿入口１，２の列の一端だけに電線挿入口３が設けられていてもよい。   Since the electric wires inserted into the electric wire insertion ports 1 and 2 are thicker than the electric wires 42 inserted into the electric wire insertion port 3 for signal lines, they have higher strength than the electric wire 42 for signals. Therefore, the electric wires inserted into the electric wire insertion ports 1 and 2 are unlikely to be broken even if the electromagnetic contactor 40 vibrates. Therefore, in the electromagnetic contactor 40 according to the first embodiment, the electric wire holder 41 is provided only around the electric wire insertion opening 3 for the signal line, and the electric wire 42 inserted into the electric wire insertion opening 3 is held. In the first embodiment, the electromagnetic contactor 40 includes the electric wire insertion port 1 on the power source side and the electric wire insertion port 2 on the load side, but is configured to include only the electric wire insertion port 3 for wiring the signal line. In this case, the electric wire holder 41 may be provided around all the electric wire insertion ports 3. Further, in the first embodiment, the electromagnetic contactor 40 is provided with the wire insertion ports 3 at both ends of the row of the plurality of wire insertion ports 1 and 2, but one end of the line of the plurality of wire insertion ports 1 and 2 is provided. The electric wire insertion port 3 may be provided only at the position.

上記の説明において、位置が固定された不動部位６１，９３が第１の部位であり、可撓性を有する可撓部位６２，９２が第２の部位であったが、逆であってもよい。また、第１の部位及び第２の部位は、両方とも位置が固定された不動部位であっても良いし、両方とも可撓性を有する可撓部位であってもよい。   In the above description, the fixed portions 61 and 93 whose positions are fixed are the first portions, and the flexible portions 62 and 92 having flexibility are the second portions, but they may be reversed. . Further, both the first part and the second part may be immovable parts whose positions are fixed, or both may be flexible parts having flexibility.

また、実施の形態１に係る電磁接触器４０は、電線ホルダ４１及び電線ホルダ４６の二種類の電線ホルダを備えていたが、いずれか一方のみを備えていてもよい。   Further, the electromagnetic contactor 40 according to the first embodiment has two types of electric wire holders, the electric wire holder 41 and the electric wire holder 46, but may have only one of them.

以上の実施の形態に示した構成は、本発明の内容の一例を示すものであり、別の公知の技術と組み合わせることも可能であるし、本発明の要旨を逸脱しない範囲で、構成の一部を省略、変更することも可能である。   The configurations shown in the above embodiments show an example of the content of the present invention, and can be combined with other known techniques, and the configurations of the configurations are possible without departing from the gist of the present invention. It is also possible to omit or change parts.

１，２，３，４ 電線挿入口、５ 工具挿入口、６ 盤面、２０ スプリング、２１ 導電性金具、２３ 電線導体部、３０ スプリング式端子、４０ 電磁接触器、４１，４６ 電線ホルダ、４２ 電線、４３ 挿入口部材、４３ａ 筒状部、４４，４７ 開口部、４５ 取付面、６１，９３ 不動部位、６２，９２ 可撓部位、６３ 突起、６４，６５，６６，６７，６８，６９，９１，９４，９６ 角部、７０ 第２不動面、７１ 第１不動面、７２ 第１可撓面、７３ 第２可撓面、９５ ナンバーチューブ、１０１ 側面部、１０３，１０６ 段差、１０７ 端面。   1, 2, 3, 4 Electric wire insertion port, 5 Tool insertion port, 6 Board surface, 20 Spring, 21 Conductive metal fitting, 23 Electric wire conductor part, 30 Spring type terminal, 40 Electromagnetic contactor, 41,46 Electric wire holder, 42 Electric wire , 43 insertion port member, 43a tubular part, 44, 47 opening part, 45 mounting surface, 61, 93 immovable part, 62, 92 flexible part, 63 protrusion, 64, 65, 66, 67, 68, 69, 91 , 94, 96 corners, 70 second immovable surface, 71 first immovable surface, 72 first flexible surface, 73 second flexible surface, 95 number tube, 101 side surface portion, 103, 106 step, 107 end surface.

Claims (8)

第１の部位と、前記第１の部位に対向する第２の部位とを有し、前記第１の部位と前記第２の部位との間に配置された電線の軸方向の動きを抑制する電線ホルダを備え、
前記第１の部位及び前記第２の部位の各々は、平面同士の交線によって形成されて前記電線の軸方向に直交する方向に延びるエッジを備え、前記電線の被覆に接する角部を少なくとも一つ有し、
前記第１の部位の前記角部の前記エッジ及び前記第２の部位の前記角部の前記エッジは、前記電線の軸方向における位置が全て異なることを特徴とする電磁接触器。 It has a first part and a second part opposite to the first part, and suppresses an axial movement of an electric wire arranged between the first part and the second part. Equipped with a wire holder,
Each of the first portion and the second portion includes an edge formed by a line of intersection between planes and extending in a direction orthogonal to the axial direction of the electric wire, and at least one corner portion contacting the coating of the electric wire is provided. Have one,
Wherein the edge of the angle portion of the edge and the second portion of the corner portion of the first portion, the electromagnetic contactor positions definitive in the axial direction of the electric wire is characterized all different. 前記電線ホルダは、前記電線を前記第１の部位及び前記第２の部位で挟んで固定することを特徴とする請求項１に記載の電磁接触器。   The electromagnetic contactor according to claim 1, wherein the electric wire holder fixes the electric wire by sandwiching the electric wire between the first portion and the second portion. 前記第１の部位及び前記第２の部位の少なくとも一方は、可撓性を有することを特徴とする請求項１又は２に記載の電磁接触器。   At least one of the said 1st part and the said 2nd part has flexibility, The electromagnetic contactor of Claim 1 or 2 characterized by the above-mentioned. 前記第１の部位及び前記第２の部位の少なくとも一方は、前記第１の部位及び前記第２の部位の他方側に突出する突起を有し、
前記突起に前記角部が設けられていることを特徴とする請求項１から３のいずれか１項に記載の電磁接触器。 At least one of the first portion and the second portion has a protrusion protruding to the other side of the first portion and the second portion,
The electromagnetic contactor according to claim 1, wherein the corner portion is provided on the protrusion. 前記電線ホルダは、前記第１の部位と前記第２の部位との間に、開口部が形成されており、前記第１の部位と前記第２の部位とが繋がっていない部分が設けられていることを特徴とする請求項１から４のいずれか１項に記載の電磁接触器。   The electric wire holder has an opening formed between the first portion and the second portion, and a portion where the first portion and the second portion are not connected is provided. The electromagnetic contactor according to any one of claims 1 to 4, wherein 前記開口部の一方の縁と他方の縁とが段差をなすことを特徴とする請求項５に記載の電磁接触器。   The electromagnetic contactor according to claim 5, wherein one edge and the other edge of the opening form a step. 挿入された前記電線と電気的に接続される端子を備えた電線挿入口が複数並べて配置されており、
複数の前記電線挿入口は、信号線用の前記電線挿入口と電源線用の前記電線挿入口とを含み、
前記電線ホルダは、信号線用の前記電線挿入口に設けられていることを特徴とする請求項１から６のいずれか１項に記載の電磁接触器。 A plurality of electric wire insertion openings each having a terminal electrically connected to the inserted electric wire are arranged side by side,
The plurality of electric wire insertion ports include the electric wire insertion port for signal lines and the electric wire insertion port for power lines,
The said electric wire holder is provided in the said electric wire insertion port for signal wires, The electromagnetic contactor of any one of Claim 1 to 6 characterized by the above-mentioned. 信号線用の前記電線挿入口は、複数の前記電線挿入口の列の両端部のうちの少なくとも一方に配置されていることを特徴とする請求項７に記載の電磁接触器。   The electromagnetic contactor according to claim 7, wherein the electric wire insertion port for a signal line is arranged at at least one of both ends of a row of the plurality of electric wire insertion ports.
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