JP2019169332A - Electrical equipment connection structure - Google Patents

Electrical equipment connection structure Download PDF

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Publication number
JP2019169332A
JP2019169332A JP2018055851A JP2018055851A JP2019169332A JP 2019169332 A JP2019169332 A JP 2019169332A JP 2018055851 A JP2018055851 A JP 2018055851A JP 2018055851 A JP2018055851 A JP 2018055851A JP 2019169332 A JP2019169332 A JP 2019169332A
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Prior art keywords
electric wire
elastic member
contact
wire insertion
fixed
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JP6597822B2 (en
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翔太 菊地
Shota Kikuchi
翔太 菊地
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Fuji Electric FA Components and Systems Co Ltd
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Fuji Electric FA Components and Systems Co Ltd
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Priority to JP2018055851A priority Critical patent/JP6597822B2/en
Priority to CN201910057097.2A priority patent/CN110299267A/en
Priority to FR1900564A priority patent/FR3079357B1/en
Priority to DE102019101568.5A priority patent/DE102019101568B4/en
Publication of JP2019169332A publication Critical patent/JP2019169332A/en
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    • 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
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/48275—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end with an opening in the housing for insertion of a release tool
    • 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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

To provide an electrical equipment connection structure capable of surely holding elasticity of a wire while reducing size in electrical equipment.SOLUTION: An electrical equipment connection structure includes: a case 5 in which a wire insertion space 10a and a wire insertion port 12a through which wire W1 is inserted into the wire insertion space are provided; a fixed contact 15 having a contact point part 15d arranged along the direction in which the wire of the wire insertion space is inserted; and an elastic member 21 which presses the wire against the contact point part with an elastic force. The elastic member includes: a flat plate-like fixed part 22; a flat plate-like first inclined part 24 that is continuous by installation of an obtuse-angled first bent part 23 between the fixed part and itself; and flat wire holding parts 30a, 30b extending substantially parallel to the first inclined part by installation of an arc-shaped second bent parts 25a, 25b between the first inclined part and themselves.SELECTED DRAWING: Figure 5

Description

本発明は、電磁接触器などの電線を弾性保持する電気機器の接続構造に関する。   The present invention relates to a connection structure for an electric device that elastically holds an electric wire such as an electromagnetic contactor.

近年、電磁接触器などの電機機器では、電線を弾性保持する弾性部材を備えたスプリング端子が採用されてきている（例えば、特許文献１）。
特許文献１のスプリング端子は、電機機器のケースに設けた電線挿入口と、ケース内に配置され、電線挿入口からケース内に挿通された電線が電気的に接続される固定部側電線保持部と、ケース内に配置され、ケース内に挿通された電線を弾性力で端子部側に押し付ける弾性部材と、を備えている。
弾性部材は、金属板を曲げて形成した部材であり、平板状の固定部と、固定部の端部から円弧状に折り曲げた曲げ部を介して形成された平板状の弾性部材側電線保持部とで構成されている。 In recent years, in electrical equipment such as an electromagnetic contactor, a spring terminal including an elastic member that elastically holds an electric wire has been employed (for example, Patent Document 1).
The spring terminal of Patent Document 1 is an electric wire insertion opening provided in a case of an electrical device, and a fixed portion side electric wire holding portion that is arranged in the case and electrically connected to the electric wire inserted into the case from the electric wire insertion opening. And an elastic member that is arranged in the case and presses the electric wire inserted into the case against the terminal portion side with an elastic force.
The elastic member is a member formed by bending a metal plate, and is a flat elastic member-side electric wire holding portion formed through a flat fixing portion and a bending portion bent in an arc shape from the end of the fixing portion. It consists of and.

この弾性部材は、ケース内に固定部を固定し、弾性部材側電線保持部が、ケース内の電線挿入口の開口部近くを横切り、その先端が固定部側電線保持部に向かうように配置される。
そして、電線挿入口から挿入された電線が端子部と弾性部材側電線保持部との間に入りこむと、曲げ部の弾性変形による弾性力によって、弾性部材側電線保持部が電線を固定部側電線保持部端子部側に押し付けて電線を弾性保持する。 The elastic member is arranged so that the fixing portion is fixed in the case, the elastic member side electric wire holding portion crosses near the opening portion of the electric wire insertion opening in the case, and the tip thereof faces the fixing portion side electric wire holding portion. The
When the electric wire inserted from the electric wire insertion port enters between the terminal portion and the elastic member-side electric wire holding portion, the elastic member-side electric wire holding portion fixes the electric wire to the fixed portion-side electric wire by the elastic force due to the elastic deformation of the bending portion. The holding part is pressed against the terminal part side to elastically hold the electric wire.

特許第５５３９８０９号公報Japanese Patent No. 5539809

ところで、特許文献１のスプリング端子は、弾性部材側電線保持部の長さを調整して電線に対する所定の弾性保持力を得ているが、大きな弾性保持力を得るために弾性部材側電線保持部の長さを長くすると弾性部材の外形寸法が大きくなってしまい、電気機器の小型化の面で問題がある。
また、スプリング端子で弾性保持されている電線に引き抜き方向の外力が作用した場合に、弾性部材がケース内で変形、或いは移動してしまうと、電線の導電不良が発生してしまうおそれがある。そこで、ケース内に弾性部材の変形、移動を規制する弾性部材固定構造を設ける必要があるが、複雑で大型の弾性部材固定構造をケース内に設けると電気機器の小型化の面で問題がある。 By the way, although the spring terminal of patent document 1 adjusts the length of the elastic member side electric wire holding part and has obtained the predetermined elastic holding force with respect to an electric wire, in order to obtain a big elastic holding force, the elastic member side electric wire holding part If the length of the elastic member is made longer, the outer dimension of the elastic member becomes larger, which is problematic in terms of miniaturization of the electric device.
In addition, when an external force in the pulling direction is applied to the electric wire that is elastically held by the spring terminal, if the elastic member is deformed or moved in the case, there is a possibility that electric conduction failure of the electric wire may occur. Therefore, it is necessary to provide an elastic member fixing structure that restricts deformation and movement of the elastic member in the case. However, if a complicated and large elastic member fixing structure is provided in the case, there is a problem in miniaturization of the electric device. .

そこで、本発明は、電気機器の小型化を図りながら電線の弾性保持を確実に行うことができる電気機器の接続構造を提供することを目的としている。   Accordingly, an object of the present invention is to provide a connection structure for an electric device that can securely retain the elasticity of the electric wire while reducing the size of the electric device.

上記目的を達成するために、本発明の一態様に係る電気機器の接続構造は、内部に電線挿入空間を設け、外部から前記電線挿入空間に電線を挿入する電線挿入口を設けたケースと、電線挿入空間の電線が挿入される方向に沿って配置された接点部に電線が電気的に接続される固定接触子と、電線挿入空間に配置され、電線挿入口から挿入された電線を弾性力で前記接点部に押し付ける弾性部材と、を備えている。そして、弾性部材は、平板状の固定部と、固定部との間に鈍角形状の第１曲げ部を設けて連続する平板状の第１傾斜部と、第１傾斜部との間に円弧形状の第２曲げ部を設けて第１傾斜部と略平行に延在する電線保持部と、を備えている。また、固定部が接点部に対向する位置で固定接触子に固定され、第２曲げ部が接点部から離間する方向に突出して配置され、電線保持部が電線挿入口の開口部近くを横切り、電線保持部の先端が接点部に向かって延在するように弾性部材が電線挿入空間に配置されている。   In order to achieve the above object, the connection structure for an electrical device according to one aspect of the present invention includes a case in which an electric wire insertion space is provided inside, and an electric wire insertion port for inserting an electric wire into the electric wire insertion space from the outside is provided. A stationary contact that is electrically connected to a contact portion that is arranged along the direction in which the electric wire is inserted in the electric wire insertion space, and an electric force that is arranged in the electric wire insertion space and is inserted into the electric wire insertion space. And an elastic member pressed against the contact portion. The elastic member has an arc shape between the flat plate-shaped fixed portion and the flat plate-shaped first inclined portion provided with an obtuse angled first bent portion between the fixed portion and the first inclined portion. And a wire holding part extending substantially parallel to the first inclined part. Further, the fixed portion is fixed to the fixed contact at a position facing the contact portion, the second bent portion is arranged to protrude in a direction away from the contact portion, and the electric wire holding portion crosses near the opening portion of the electric wire insertion port, The elastic member is arranged in the electric wire insertion space so that the tip of the electric wire holding portion extends toward the contact portion.

本発明に係る電気機器の接続構造によれば、電気機器の小型化を図りながら電線の弾性保持を確実に行うことができる。   According to the connection structure for an electric device according to the present invention, the electric wire can be reliably held elastically while reducing the size of the electric device.

本発明に係る第１実施形態の電磁接触器を示す斜視図である。It is a perspective view which shows the electromagnetic contactor of 1st Embodiment which concerns on this invention. 第１実施形態の電磁接触器を示す平面図である。It is a top view which shows the electromagnetic contactor of 1st Embodiment. 第１実施形態の電磁接触器のケース蓋体を外した平面図である。It is the top view which removed the case cover body of the electromagnetic contactor of 1st Embodiment. 図２のII−II線矢視図である。It is the II-II line arrow directional view of FIG. 第１実施形態の電線挿入空間に配置されているスプリング端子を示す図である。It is a figure which shows the spring terminal arrange | positioned in the electric wire insertion space of 1st Embodiment. 第１実施形態のスプリング端子を構成する弾性部材を示す図である。It is a figure which shows the elastic member which comprises the spring terminal of 1st Embodiment.

次に、図面を参照して、本発明の第１実施形態を説明する。以下の図面の記載において、同一又は類似の部分には同一又は類似の符号を付している。ただし、図面は模式的なものであり、厚みと平面寸法との関係、各層の厚みの比率等は現実のものとは異なることに留意すべきである。したがって、具体的な厚みや寸法は以下の説明を参酌して判断すべきものである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれていることはもちろんである。
また、以下に示す第１実施形態は、本発明の技術的思想を具体化するための装置や方法を例示するものであって、本発明の技術的思想は、構成部品の材質、形状、構造、配置等を下記のものに特定するものでない。本発明の技術的思想は、特許請求の範囲に記載された請求項が規定する技術的範囲内において、種々の変更を加えることができる。 Next, a first embodiment of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.
The first embodiment described below exemplifies an apparatus and method for embodying the technical idea of the present invention, and the technical idea of the present invention is the material, shape, and structure of component parts. The arrangement is not specified below. The technical idea of the present invention can be variously modified within the technical scope defined by the claims described in the claims.

［第１実施形態の電磁接触器］
図1から図６は、一方側の電源と他方側の負荷との間の電流路の開閉を行う本発明に係る第１実施形態の電磁接触器１を示すものである。
なお、図１〜図５において符号Ｘを第１方向とし、符号Ｙを第１方向Ｘに直交する第２方向とし、符号Ｚを、第１方向Ｘ及び第２方向Ｙを含む仮想平面に直交する第３方向としている。
電磁接触器１は、ケース２（図１参照）と、このケース２に収納されている接点機構３（図３参照）と、ケース２に収納されて接点機構３を駆動する電磁石ユニット４（図４参照）とを備えている。 [Electromagnetic contactor of the first embodiment]
1 to 6 show an electromagnetic contactor 1 according to a first embodiment of the present invention that opens and closes a current path between a power source on one side and a load on the other side.
1 to 5, the symbol X is the first direction, the symbol Y is the second direction orthogonal to the first direction X, and the symbol Z is orthogonal to the virtual plane including the first direction X and the second direction Y. This is the third direction.
The electromagnetic contactor 1 includes a case 2 (see FIG. 1), a contact mechanism 3 (see FIG. 3) housed in the case 2, and an electromagnet unit 4 (see FIG. 3) housed in the case 2 to drive the contact mechanism 3. 4).

ケース２は、図１及び図４に示すように、第３方向Ｚの一方に開口部が形成されている有底直方体形状のケース本体５と、開口部を覆いながらケース本体５に着脱自在に装着されているケース蓋体６とを備えている。
ケース本体５には、図４に示すように、中央部に接点機構３を収容する接点機構収容部７と、電磁石ユニット収容部８が形成されており、接点機構収容部７には接点機構３が収容され、電磁石ユニット収容部８には電磁石ユニット４が収容されている。 As shown in FIGS. 1 and 4, the case 2 has a bottomed rectangular parallelepiped case body 5 in which an opening is formed in one of the third directions Z, and is detachable from the case body 5 while covering the opening. And a case lid 6 attached thereto.
As shown in FIG. 4, the case main body 5 is formed with a contact mechanism accommodating portion 7 that accommodates the contact mechanism 3 in the center portion and an electromagnet unit accommodating portion 8, and the contact mechanism accommodating portion 7 includes the contact mechanism 3. The electromagnet unit 4 is housed in the electromagnet unit housing portion 8.

図３に示すように、ケース本体５の接点機構収容部７を挟んで第１方向Ｘの両側に、複数対の電線挿入空間１０ａ〜１０ｅが形成されているとともに、隣接する電線挿入空間１０ａ〜１０ｅの間には隔壁１１が設けられている。
また、図４に示すように、ケース蓋体６の正面板６ａには、一対の電線挿入空間１０ａに向けて連通する一対の電線挿入口１２ａが設けられている。
一対の電線挿入口１２ａには、図２に示すように、電線挿入空間１０ａに対して２個の電線挿入口１２ａ１，１２ａ２が設けられている。 As shown in FIG. 3, a plurality of pairs of wire insertion spaces 10 a to 10 e are formed on both sides in the first direction X across the contact mechanism housing portion 7 of the case main body 5, and adjacent wire insertion spaces 10 a to 10 a. A partition wall 11 is provided between 10e.
As shown in FIG. 4, the front plate 6a of the case lid 6 is provided with a pair of wire insertion ports 12a communicating with the pair of wire insertion spaces 10a.
As shown in FIG. 2, the pair of wire insertion ports 12a is provided with two wire insertion ports 12a1 and 12a2 with respect to the wire insertion space 10a.

また、ケース蓋体６の正面板６ａには、一対の電線挿入口１２ａに対して第２方向Ｙに並んで複数対の電線挿入口１２ｂ〜１２ｅが形成されており、これら複数対の電線挿入口１２ｂ〜１２ｅは、ケース蓋体６の外部と一対の電線挿入空間１０ｂ〜１０ｅとを連通している。これら複数対の電線挿入口１２ｂ〜１２ｅも、電線挿入空間１０ｂ〜１０ｅに対してそれぞれ２個の電線挿入口が設けられている。
第１実施形態の電磁接触器では、これら複数対の電線挿入口１２ａ〜１２ｅは、６対の電線挿入口１２ａ〜１２ｃが主回路端子用として使用され、一対の電線挿入口１２ｄが補助端子用として使用され、一対の電線挿入口１２ｅが電磁石ユニット４のコイル端子用として使用される。 The front plate 6a of the case lid 6 is formed with a plurality of pairs of wire insertion ports 12b to 12e arranged in the second direction Y with respect to the pair of wire insertion ports 12a. The mouths 12b to 12e communicate the outside of the case lid 6 with the pair of wire insertion spaces 10b to 10e. The plurality of pairs of wire insertion ports 12b to 12e are also provided with two wire insertion ports for the wire insertion spaces 10b to 10e, respectively.
In the electromagnetic contactor according to the first embodiment, six pairs of the wire insertion ports 12a to 12c are used for the main circuit terminals, and the pair of wire insertion ports 12d are for the auxiliary terminals. The pair of wire insertion openings 12e are used as coil terminals for the electromagnet unit 4.

また、図１、図２及び図４に示すように、ケース蓋体６の正面板６ａには、複数対の電線挿入口１２ｂ〜１２ｅの近くに、クランプ解除工具を挿通する挿通孔１３が電線挿入空間１０ａ〜１０ｅに連通して形成されている。この挿通孔１３は、複数対の電線挿入口１２ａ〜１２ｅの２個の電線挿入口に対応して形成されている。
一方、接点機構３は、図３に示すように、第１方向Ｘに離れてケース本体５に固定された複数対の固定接触子１５と、各対の固定接触子１５に接離可能な複数の可動接触子１６とを備えている。 As shown in FIGS. 1, 2 and 4, the front plate 6a of the case lid 6 has an insertion hole 13 through which the clamp release tool is inserted in the vicinity of the plurality of pairs of wire insertion openings 12b to 12e. It is formed in communication with the insertion spaces 10a to 10e. This insertion hole 13 is formed corresponding to two electric wire insertion ports of a plurality of pairs of electric wire insertion ports 12a to 12e.
On the other hand, as shown in FIG. 3, the contact mechanism 3 includes a plurality of pairs of fixed contacts 15 that are separated from each other in the first direction X and fixed to the case body 5, and a plurality of contacts that can contact and separate from each pair of fixed contacts 15. The movable contact 16 is provided.

複数の可動接触子１６は、第２方向Ｙに細長く延びる可動接触子支持部材１７に第１方向Ｘに沿って所定間隔で固定されている。可動接触子支持部材１７は、電磁石ユニット４のコイルが励磁されると、図示しない駆動レバーを介して図３の下方向に移動し、可動接触子支持部材１７に固定された複数の可動接触子１６の各々が各対の固定接触子１５に接触する。これにより、第１方向Ｘの一方の固定接触子１５と、第１方向Ｘの他方の固定接触子１５とが可動接触子１６を介して導通し、電流路を閉じることになる。
一方、電磁石ユニット４のコイルが非励磁状態になると、可動接触子支持部材１７は、図示しない復帰スプリングの作用により、図３の上方向に移動し、可動接触子支持部材１７に固定された複数の可動接触子１６の各々が各対の固定接触子１５から離れる。これにより、第１方向Ｘの一方の固定接触子１５と、第１方向Ｘの他方の固定接触子１５とが遮断される。 The plurality of movable contacts 16 are fixed at predetermined intervals along the first direction X to a movable contact support member 17 that is elongated in the second direction Y. When the coil of the electromagnet unit 4 is excited, the movable contact support member 17 moves downward in FIG. 3 via a drive lever (not shown), and a plurality of movable contact members fixed to the movable contact support member 17. Each of 16 contacts each pair of stationary contacts 15. As a result, one fixed contact 15 in the first direction X and the other fixed contact 15 in the first direction X are conducted through the movable contact 16 to close the current path.
On the other hand, when the coil of the electromagnet unit 4 is in a non-excited state, the movable contact support member 17 moves upward in FIG. 3 due to the action of a return spring (not shown) and is fixed to the movable contact support member 17. Each movable contact 16 is separated from each pair of fixed contacts 15. Thereby, one fixed contact 15 of the 1st direction X and the other fixed contact 15 of the 1st direction X are intercepted.

図４に示すように、ケース本体５に設けた一対の電線挿入空間１０ａには、後述する電線Ｗを固定接触子１５に接続するスプリング端子２０が配置されている。
他の複数対の電線挿入空間１０ｂ〜１０ｅにも、図４の一対の電線挿入空間１０ａに配置した電線Ｗを固定接触子１５に接続するスプリング端子２０と同一構成のスプリング端子２０が配置されている。
電線Ｗは、図５に示すように、多数の金属線材からなる芯線Ｗ１と、芯線Ｗ１の外周を被覆する絶縁被覆Ｗ２とを備えている。電線Ｗを固定接触子１５に接続する際には、絶縁被覆Ｗ２の先端部分が除去され、芯線Ｗ１が所定部分だけ露出する。 As shown in FIG. 4, in a pair of electric wire insertion spaces 10 a provided in the case main body 5, spring terminals 20 that connect the electric wires W described later to the fixed contact 15 are arranged.
The spring terminals 20 having the same configuration as the spring terminals 20 that connect the electric wires W arranged in the pair of electric wire insertion spaces 10a in FIG. 4 to the fixed contact 15 are also arranged in the other plural pairs of electric wire insertion spaces 10b to 10e. Yes.
As shown in FIG. 5, the electric wire W includes a core wire W1 made of a number of metal wires, and an insulating coating W2 that covers the outer periphery of the core wire W1. When connecting the electric wire W to the fixed contact 15, the tip portion of the insulating coating W <b> 2 is removed, and only a predetermined portion of the core wire W <b> 1 is exposed.

固定接触子１５の構造について、図３及び図５を参照して説明する。
固定接触子１５は、可動接触子１６が接触する平板状の固定接点部１５ａと、第３方向Ｚに延在する方向に折り曲げられた平板状の基板部１５ｂと、基板部１５ｂから第１方向Ｘに延在する方向に折り曲げられた平板状の座板部１５ｃと、座板部１５ｃから基板１５ｂと平行に第３方向Ｚに延在する方向に折り曲げられた平板状の弾性部材側接点部１５ｄとを備えている。この固定接触子１５は、金属板を打抜き及び曲げ加工することによって形成される。 The structure of the stationary contact 15 will be described with reference to FIGS. 3 and 5.
The fixed contact 15 includes a flat fixed contact portion 15a with which the movable contact 16 contacts, a flat substrate portion 15b bent in a direction extending in the third direction Z, and a first direction from the substrate portion 15b. A flat plate-like seat plate portion 15c bent in a direction extending in X, and a flat plate-like elastic member side contact portion bent in a direction extending in the third direction Z parallel to the substrate 15b from the seat plate portion 15c. 15d. The fixed contact 15 is formed by punching and bending a metal plate.

電線挿入空間１０ａに設けられる固定接触子１５は、図３に示すように、固定接点部１５ａが接点機構収容部７内に位置し、基板部１５ｂ、座板部１５ｃ及び弾性部材側接点部１５ｄが電線挿入空間１０ａを形成しているケース本体５の内壁に沿った状態でケース本体５に固定される。
他の複数対の電線挿入空間１０ｂ〜１０ｅに設けられる固定接触子１５も、固定接点部１５ａが接点機構収容部７内に位置し、基板部１５ｂ、座板部１５ｃ及び弾性部材側接点部１５ｄが電線挿入空間１０ｂ〜１０ｅ内に位置するように、ケース本体５に固定される。 As shown in FIG. 3, the fixed contact 15 provided in the electric wire insertion space 10a has a fixed contact portion 15a located in the contact mechanism accommodating portion 7, and a substrate portion 15b, a seat plate portion 15c, and an elastic member side contact portion 15d. Is fixed to the case body 5 in a state along the inner wall of the case body 5 forming the electric wire insertion space 10a.
The fixed contact 15 provided in the other plurality of pairs of electric wire insertion spaces 10b to 10e also has the fixed contact 15a located in the contact mechanism accommodating portion 7, and the substrate 15b, the seat plate 15c, and the elastic member side contact 15d. Is fixed to the case body 5 so as to be located in the electric wire insertion spaces 10b to 10e.

図５に示すように、固定接触子１５の基板部１５ｂの内壁には、抜け止め部である係合爪３２が突出して形成されている。
固定接触子１５の基板部１５ｂに寄った位置の座板部１５ｃには移動規制部である嵌入孔３３が形成されている。
ここで、前述したスプリング端子２０は、図５に示すように、弾性部材２１と、固定接触子１５の弾性部材側接点部１５ｄとで構成されている。 As shown in FIG. 5, an engagement claw 32 that is a retaining portion is formed on the inner wall of the substrate portion 15 b of the fixed contact 15 so as to protrude.
An insertion hole 33 that is a movement restricting portion is formed in the seat plate portion 15 c at a position close to the substrate portion 15 b of the fixed contact 15.
Here, as shown in FIG. 5, the spring terminal 20 described above includes an elastic member 21 and an elastic member side contact portion 15 d of the fixed contact 15.

弾性部材２１は、図６（ａ）に示すように、長尺な金属平板を材料とした部材であり、平板状の固定部２２と、固定部２２の長手方向端部との間に鈍角形状の第１曲げ部２３を設けて連続する平板状の第１傾斜部２４と、第１傾斜部２４との間に円弧形状の第２曲げ部２５を設けて第１傾斜部２４と略同一方向に延在する平板状の第２傾斜部２６と、第２傾斜部２６の長手方向端部との間に鈍角形状の第３曲げ部２７，２８を設けて連続する平板状の第３傾斜部２９と、を備えている。ここで、第２傾斜部２６、第３曲げ部２７，２８及び第３傾斜部２９が弾性部材側電線保持部３０を構成している。   As shown in FIG. 6A, the elastic member 21 is a member made of a long metal flat plate, and an obtuse angle shape between the flat fixing portion 22 and the longitudinal end portion of the fixing portion 22. A flat plate-like first inclined portion 24 provided by providing the first bent portion 23 and an arc-shaped second bent portion 25 provided between the first inclined portion 24 and substantially the same direction as the first inclined portion 24. A flat plate-like third inclined portion provided by providing obtuse-angled third bent portions 27, 28 between the flat-plate-like second inclined portion 26 extending in the longitudinal direction and the longitudinal end portion of the second inclined portion 26 29. Here, the second inclined portion 26, the third bent portions 27 and 28, and the third inclined portion 29 constitute the elastic member side electric wire holding portion 30.

そして、この弾性部材２１は、図６（ｂ），（ｃ）に示すように、第３傾斜部２９から湾曲部２５までの幅方向中央部に延在するスリット３１が形成されており、第２曲げ部２５が分割第２曲げ部２５ａ，２５ｂに２分割され、弾性部材側電線保持部３０も分割弾性部材側電線保持部３０ａ，３０ｂに２分割されている。ここで、分割弾性部材側電線保持部３０ａには、分割第３曲げ部２７ａ，２８ａが形成され、分割弾性部材側電線保持部３０ｂには、分割第３曲げ部２７ｂ，２８ｂが形成されている。
また、弾性部材２１の固定部２２の下端には移動規制部である嵌入凸部３４が形成されているとともに、固定部２２には抜け止め部である係合貫通孔３５が形成されている。 The elastic member 21 is formed with a slit 31 extending in the center in the width direction from the third inclined portion 29 to the curved portion 25 as shown in FIGS. 6B and 6C. The two bent portions 25 are divided into two divided second bent portions 25a and 25b, and the elastic member side electric wire holding portion 30 is also divided into two divided elastic member side electric wire holding portions 30a and 30b. Here, the divided third bent portions 27a and 28a are formed in the divided elastic member side electric wire holding portion 30a, and the divided third bent portions 27b and 28b are formed in the divided elastic member side electric wire holding portion 30b. .
Further, an insertion convex portion 34 that is a movement restricting portion is formed at the lower end of the fixing portion 22 of the elastic member 21, and an engaging through hole 35 that is a retaining portion is formed in the fixing portion 22.

そして、図５に示すように、弾性部材２１の固定部２２が、一対の電線挿入空間１０ａの一方に配置された固定接触子１５の基板部１５ｂに沿って配置され、固定部２２の下端の嵌入凸部３４が基板部１５ｂの嵌入孔３３に嵌め込まれるとともに、固定部２２の係合貫通孔３５に基板部１５ｂの係合爪３２が入り込んだ状態で、固定接触子１５に弾性部材２１が連結される。
一対の電線挿入空間１０ａの他方に配置されている固定接触子１５にも、同様の構造で弾性部材２１が連結されるとともに、他の複数対の電線挿入空間１０ｂ〜１０ｅに配置された固定接触子１５にも、同様の構造で弾性部材２１が連結されている。 And as shown in FIG. 5, the fixing | fixed part 22 of the elastic member 21 is arrange | positioned along the board | substrate part 15b of the stationary contact 15 arrange | positioned at one side of a pair of electric wire insertion space 10a, The elastic member 21 is attached to the fixed contact 15 in a state where the insertion convex portion 34 is fitted into the insertion hole 33 of the substrate portion 15 b and the engagement claw 32 of the substrate portion 15 b is inserted into the engagement through hole 35 of the fixing portion 22. Connected.
The elastic member 21 is connected to the fixed contact 15 arranged in the other of the pair of electric wire insertion spaces 10a with the same structure, and the fixed contact arranged in the other plural pairs of electric wire insertion spaces 10b to 10e. The elastic member 21 is connected to the child 15 with the same structure.

そして、ケース本体５にケース蓋体６を装着すると、ケース本体５の複数対の電線挿入空間１０ａに配置された弾性部材２１の分割弾性部材側電線保持部３０ａが、図２で示した電線挿入口１２ａを構成している２個の電線挿入口１２ａ１，１２ａ２の一方に対向する位置に配置される。また、弾性部材２１の分割弾性部材側電線保持部３０ｂが、２個の電線挿入口１２ａ１，１２ａ２の他方に対向する位置に配置される。また、他の複数対の電線挿入口１２ｂ〜１２ｅを構成しているそれぞれ２個の電線挿入口にも、分割弾性部材側電線保持部３０ａ，３０ｂが対向する位置に配置されている。   When the case lid 6 is attached to the case main body 5, the split elastic member side electric wire holding portion 30a of the elastic member 21 arranged in the plural pairs of electric wire insertion spaces 10a of the case main body 5 is inserted into the electric wire shown in FIG. It arrange | positions in the position which opposes one of the two electric wire insertion ports 12a1 and 12a2 which comprise the opening 12a. Further, the split elastic member side electric wire holding portion 30b of the elastic member 21 is arranged at a position facing the other of the two electric wire insertion ports 12a1 and 12a2. Moreover, the divided elastic member side electric wire holding parts 30a and 30b are also arrange | positioned in the position which the two electric wire insertion ports which comprise other multiple pairs of electric wire insertion ports 12b-12e each oppose.

ここで、図４及び図５に示すように、ケース本体５にケース蓋体６を装着すると、一対の電線挿入空間１０ａに配置された弾性部材２１の分割第３曲げ部２５ａ，２５ｂの外側に、ケース蓋体６の内壁から突出した弾性部材倒れ防止壁３６が近接して配置されている。また、図示しないが、他の複数対の電線挿入空間１０ｂ〜１０ｅに配置された弾性部材２１の分割第３曲げ部２５ａ，２５ｂの外側にも、ケース蓋体６の内壁から突出した弾性部材倒れ防止壁３６が近接して配置されている。   Here, as shown in FIGS. 4 and 5, when the case lid 6 is attached to the case body 5, outside the divided third bent portions 25 a and 25 b of the elastic member 21 arranged in the pair of electric wire insertion spaces 10 a. The elastic member collapse prevention wall 36 protruding from the inner wall of the case lid 6 is disposed in the vicinity. Although not shown, the elastic member collapses protruding from the inner wall of the case lid 6 on the outside of the divided third bent portions 25a and 25b of the elastic member 21 disposed in the other plural pairs of electric wire insertion spaces 10b to 10e. The prevention wall 36 is disposed in close proximity.

そして、図５に示すように、弾性部材２１の分割弾性部材側電線保持部３０ａの先端と、固定接触子１５の弾性部材側接点部１５ｄとの間で電線挿入口１２ａの一方の電線挿入口１２ａ１から電線挿入空間１０ａ内に挿入された電線Ｗの芯線Ｗ１を弾性保持する。また、図示しないが、電線挿入口１２ａの他方の電線挿入口１２ａ２から電線挿入空間１０ａ内に挿入される電線Ｗと他の一対の電線挿入口１２ｂ〜１２ｅに挿入され電線Ｗも、弾性部材２１の分割弾性部材側電線保持部３０ａ，３０ｂの先端と、固定接触子１５の弾性部材側接点部１５ｄとの間で芯線Ｗ１が弾性保持される。
なお、本発明に記載されている接点部が、弾性部材側接点部１５に対応し、本発明に記載されている電線保持部が、分割弾性部材側電線保持部３０ａ，３０ｂに対応し、本発明に記載されている変形規制部が弾性部材倒れ防止壁３６に対応している。 And as shown in FIG. 5, one electric wire insertion port of the electric wire insertion port 12a between the front-end | tip of the division | segmentation elastic member side electric wire holding part 30a of the elastic member 21, and the elastic member side contact part 15d of the stationary contact 15 The core wire W1 of the electric wire W inserted into the electric wire insertion space 10a from 12a1 is elastically held. Moreover, although not shown in figure, the electric wire W inserted into the electric wire insertion space 10a from the other electric wire insertion port 12a2 of the electric wire insertion port 12a and the other pair of electric wire insertion ports 12b-12e are also elastic members 21. The core wire W1 is elastically held between the distal ends of the divided elastic member side electric wire holding portions 30a and 30b and the elastic member side contact portion 15d of the fixed contact 15.
Note that the contact portion described in the present invention corresponds to the elastic member side contact portion 15, the electric wire holding portion described in the present invention corresponds to the divided elastic member side electric wire holding portions 30 a and 30 b, The deformation restricting portion described in the invention corresponds to the elastic member collapse preventing wall 36.

次に、第１実施形態の電磁接触器１の作用効果について、図５、図６（ａ）を参照して説明する。なお、複数対の電線挿入空間１０ａ〜１０ｂにスプリング端子２０（弾性部材２１及び固定接触子１５の弾性部材側接点部１５ｄ）が配置されているので、以下では一対の電線挿入空間１０ａの一方に配置されているスプリング端子２０の作用効果を説明する。
第１実施形態の電磁接触器１は、スプリング端子２０として図６（ａ）で示した弾性部材２１を使用している。この弾性部材２１は、固定部２２に連続して第１曲げ部２３を設けており、図６（ａ）に示した二点鎖線で示す固定部２２から第１曲げ部２３を設けていない弾性部材Ｓと高さを比較すると、第１実施形態の弾性部材２１の高さＬ１に対して、第１曲げ部２３を設けていない弾性部材Ｓの高さＬ２が高くなってしまう。 Next, the effect of the electromagnetic contactor 1 of 1st Embodiment is demonstrated with reference to FIG. 5, FIG. 6 (a). In addition, since the spring terminal 20 (the elastic member 21 and the elastic member side contact portion 15d of the fixed contact 15) is disposed in the plurality of pairs of electric wire insertion spaces 10a to 10b, in the following, one of the pair of electric wire insertion spaces 10a. The effect of the arranged spring terminal 20 will be described.
The electromagnetic contactor 1 of the first embodiment uses the elastic member 21 shown in FIG. 6A as the spring terminal 20. The elastic member 21 is provided with a first bent portion 23 that is continuous with the fixed portion 22 and is not provided with the first bent portion 23 from the fixed portion 22 indicated by a two-dot chain line shown in FIG. When the height is compared with the member S, the height L2 of the elastic member S not provided with the first bending portion 23 is higher than the height L1 of the elastic member 21 of the first embodiment.

また、弾性部材Ｓは、電線Ｗの芯線Ｗ１に対して大きな弾性保持力を得るために弾性部材側電線保持部の長さを長く設計すると弾性部材の外形寸法が大きくなってしまう。しかし、第１実施形態の弾性部材２１は、第１曲げ部２３を設けているので、所望の長さの分割弾性部材側電線保持部３０ａ，３０ｂを設けて大きな弾性保持力を得ることができる。
このように、第１実施形態の弾性部材２１は、第１曲げ部２３を設けたことで高さが低い部材となり、ケース２全体の電線挿入空間１０ａ〜１０ｅを小さな空間に設計することができるので、電磁接触器１の小型化を図ることができる。
また、第１実施形態の弾性部材２１は、電磁接触器１の小型化を図りながら、所望の長さの分割弾性部材側電線保持部３０ａ，３０ｂを設けることができるので、電線Ｗの芯線Ｗ１を確実に保持することができる。 Further, when the elastic member S is designed to have a long elastic member-side electric wire holding portion in order to obtain a large elastic holding force with respect to the core W1 of the electric wire W, the outer dimension of the elastic member becomes large. However, since the elastic member 21 of the first embodiment is provided with the first bending portion 23, it is possible to obtain a large elastic holding force by providing the divided elastic member side electric wire holding portions 30a and 30b having a desired length. .
As described above, the elastic member 21 of the first embodiment is a member having a low height by providing the first bending portion 23, and the electric wire insertion spaces 10a to 10e of the entire case 2 can be designed in a small space. Therefore, the size of the electromagnetic contactor 1 can be reduced.
Moreover, since the elastic member 21 of 1st Embodiment can provide the split elastic member side electric wire holding | maintenance part 30a, 30b of desired length, aiming at size reduction of the magnetic contactor 1, the core wire W1 of the electric wire W is provided. Can be securely held.

また、弾性部材２１は、図５に示すように、電線挿入口１２ａ１から電線挿入空間１０ａに電線Ｗの芯線Ｗ１が挿入されると、分割第２曲げ部２５ａの弾性変形とともに、分割弾性部材側電線保持部３０ａの分割第３曲げ部２７ａ，２８ａも弾性変形することで、固定接触子１５の弾性部材側接点部１５ｄとの間で芯線Ｗ１が弾性保持される。このように、第１実施形態の弾性部材２１は、分割第２曲げ部２５ａのみに応力が集中せず、分割弾性部材側電線保持部３０ａの分割第３曲げ部２７ａ，２８ａにも応力が分散して作用するので、弾性部材２１の応力集中による劣化を防止することができる。   Further, as shown in FIG. 5, when the core wire W1 of the electric wire W is inserted into the electric wire insertion space 10a from the electric wire insertion opening 12a1, the elastic member 21 is separated from the divided elastic member side along with the elastic deformation of the divided second bent portion 25a. The split third bent portions 27a and 28a of the electric wire holding portion 30a are also elastically deformed, whereby the core wire W1 is elastically held between the fixed contact 15 and the elastic member side contact portion 15d. As described above, in the elastic member 21 of the first embodiment, the stress is not concentrated only on the divided second bent portion 25a, and the stress is distributed to the divided third bent portions 27a and 28a of the divided elastic member side electric wire holding portion 30a. Therefore, the elastic member 21 can be prevented from being deteriorated due to stress concentration.

また、第１実施形態の弾性部材２１の分割第３曲げ部２５ａ，２５ｂの外側には、ケース蓋体６の内壁から突出した弾性部材倒れ防止壁３６が近接して配置されており、電線Ｗの芯線Ｗ１を弾性保持する際に、分割第３曲げ部２５ａ，２５ｂが弾性部材側接点部１５ｄから離間する方向（図５のＲ１方向）に変形しようとしても弾性部材倒れ防止壁３６に接触して変形しないので、芯線Ｗ１を弾性保持する力が弱まるのを防止することができる。
また、弾性部材２１に対して図５のＲ２方向の外力が加わっても、弾性部材２１の固定部２２の下端の嵌入凸部３４が基板部１５ｂの嵌入孔３３に嵌め込まれているので、嵌入孔３３に嵌め込まれた嵌入凸部３４が弾性部材２１の倒れを防止することができる。 In addition, an elastic member collapse prevention wall 36 protruding from the inner wall of the case lid 6 is disposed close to the outside of the divided third bent portions 25a and 25b of the elastic member 21 of the first embodiment. When the core wire W1 is elastically held, the divided third bent portions 25a and 25b come into contact with the elastic member collapse preventing wall 36 even if the divided third bent portions 25a and 25b try to deform in a direction away from the elastic member side contact portion 15d (R1 direction in FIG. 5). Therefore, the force for elastically holding the core wire W1 can be prevented from weakening.
Further, even when an external force in the R2 direction of FIG. 5 is applied to the elastic member 21, the insertion convex portion 34 at the lower end of the fixing portion 22 of the elastic member 21 is fitted into the insertion hole 33 of the substrate portion 15b. The fitting convex part 34 fitted in the hole 33 can prevent the elastic member 21 from falling.

さらに、スプリング端子２０に弾性保持されている電線Ｗに対して引き抜き動作を行うと、弾性部材２１には図５のＦ１の外力が作用する。このときに、弾性部材の固定部２２の係合貫通孔３５に、固定接触子１５の基板部１５ｂの係合爪３２が入り込んでおり、弾性部材２１が図５の上方向に移動しようとすると、係合爪が係合貫通孔３５の周縁に係合して弾性部材２１の移動を阻止する。したがって、電線Ｗの引き抜き動作により弾性部材２１に引き抜き方向の外力が作用しても、弾性部材２１の電線挿入空間１０ａからの脱却を確実に防止することができる。   Further, when an extraction operation is performed on the electric wire W elastically held by the spring terminal 20, an external force F <b> 1 in FIG. 5 acts on the elastic member 21. At this time, when the engaging claw 32 of the base plate portion 15b of the fixed contact 15 enters the engaging through hole 35 of the fixing portion 22 of the elastic member, the elastic member 21 tries to move upward in FIG. The engaging claw engages with the peripheral edge of the engaging through hole 35 to prevent the elastic member 21 from moving. Therefore, even if an external force in the pulling direction acts on the elastic member 21 by the pulling operation of the electric wire W, the elastic member 21 can be reliably prevented from escaping from the electric wire insertion space 10a.

なお、第１実施形態は、電磁接触器１についての接続構造について説明したが、配線用遮断器、電磁開閉器、サーキットプロテクタなどの各種電機機器の接続構造に採用しても同様の効果を奏することができる。   In addition, although 1st Embodiment demonstrated the connection structure about the electromagnetic contactor 1, even if it employ | adopts for the connection structure of various electric equipments, such as a circuit breaker for wiring, an electromagnetic switch, and a circuit protector, there exists the same effect. be able to.

１ 電磁接触器
２ ケース
３ 接点機構
４ 電磁石ユニット
５ ケース本体
６ ケース蓋体
７ 接点機構収容部
８ 電磁石ユニット収容部
１０ａ〜１０ｅ 電線挿入空間
１１ 隔壁
１２ａ〜１２ｅ 電線挿入口
１２ａ１，１２ａ２ 電線挿入口
１３ 挿通孔
１５ 固定接触子
１５ａ 固定接点部
１５ｂ 基板部
１５ｃ 座板部
１５ｄ 弾性部材側接点部
１７ 可動接触子支持部材
２０ スプリング端子
２１ 弾性部材
２２ 固定部
２３ 第１曲げ部
２４ 第１傾斜部
２５ａ，２５ｂ 分割第２曲げ部
２６ 第２傾斜部
２７ａ，２８ａ 分割第３曲げ部
２７ｂ，２８ｂ 分割第３曲げ部
２９ 第３傾斜部
３０ａ，３０ｂ 分割弾性部材側電線保持部
３１ スリット
３２ 係合爪
３３ 嵌入孔
３４ 嵌入凸部
３５ 係合貫通孔
３６ 弾性部材倒れ防止壁
Ｘ 第１方向
Ｙ 第２方向
Ｚ 第３方向
Ｗ 電線
Ｗ１ 芯線
Ｗ２ 絶縁被覆 DESCRIPTION OF SYMBOLS 1 Electromagnetic contactor 2 Case 3 Contact mechanism 4 Electromagnet unit 5 Case main body 6 Case cover body 7 Contact mechanism accommodating part 8 Electromagnet unit accommodating part 10a-10e Electric wire insertion space 11 Bulkhead 12a-12e Electric wire insertion port 12a1, 12a2 Electric wire insertion port 13 Insertion hole 15 Fixed contact 15a Fixed contact portion 15b Substrate portion 15c Seat plate portion 15d Elastic member side contact portion 17 Movable contact support member 20 Spring terminal 21 Elastic member 22 Fixed portion 23 First bent portion 24 First inclined portion 25a, 25b divided second bent portion 26 second inclined portions 27a, 28a divided third bent portions 27b, 28b divided third bent portion 29 third inclined portions 30a, 30b divided elastic member side electric wire holding portion 31 slit 32 engaging claw 33 fitting Hole 34 Insertion convex part 35 Engagement through hole 36 Elastic member fall prevention wall X 1st direction Y 2nd direction Z 3rd direction W Electric wire W1 Core wire W2 Insulation coating

上記目的を達成するために、本発明の一態様に係る電気機器の接続構造は、内部に電線挿入空間を設け、外部から電線挿入空間に電線を挿入する電線挿入口を設けたケースと、電線挿入空間の電線が挿入される方向に沿って配置された接点部に電線が電気的に接続される固定接触子と、電線挿入空間に配置され、電線挿入口から挿入された電線を弾性力で接点部に押し付ける弾性部材と、を備え、弾性部材は、接点部に対向する位置で固定接触子に固定される固定部と、固定部から接点部と逆方向に鈍角で曲げられた第１曲げ部と、第１曲げ部から連続する第１傾斜部と、第１傾斜部から接点部側に円弧形状に曲げられた第２曲げ部と、第２曲げ部から連続し、第１傾斜部と略平行に延在する第２傾斜部と、第２傾斜部から第１傾斜部側に曲げられた第３曲げ部と、第３曲げ部から連続し、第２傾斜部より第１傾斜部側であって、接点部に向かって延在する第３傾斜部と、を備えている。 In order to achieve the above object, a connection structure for an electrical device according to one aspect of the present invention includes a case in which an electric wire insertion space is provided inside and an electric wire insertion port for inserting an electric wire from the outside into the electric wire insertion space is provided; A stationary contact that is electrically connected to a contact portion that is arranged along the direction in which the electric wire in the insertion space is inserted, and an electric wire that is arranged in the electric wire insertion space and that is inserted from the electric wire insertion port with an elastic force. An elastic member that presses against the contact portion, the elastic member being fixed to the fixed contact at a position facing the contact portion, and a first bend bent at an obtuse angle from the fixed portion in the opposite direction to the contact portion and parts, a first inclined portion which is continuous from the first bent portion, and a second bent portion which is bent in an arc shape from the first inclined portion to the contact portion side, continuous from the second bent portion, a first inclined portion a second inclined portion extending substantially parallel, tracks from the second inclined portion to the first inclined portion A third bent portion was, successively from the third bent portion includes a first inclined portion side of the second inclined portion, and a third inclined portion extending towards the contact portion.

ここで、図４及び図５に示すように、ケース本体５にケース蓋体６を装着すると、一対の電線挿入空間１０ａに配置された弾性部材２１の分割第２曲げ部２５ａ，２５ｂの外側に、ケース蓋体６の内壁から突出した弾性部材倒れ防止壁３６が近接して配置されている。また、図示しないが、他の複数対の電線挿入空間１０ｂ〜１０ｅに配置された弾性部材２１の分割第２曲げ部２５ａ，２５ｂの外側にも、ケース蓋体６の内壁から突出した弾性部材倒れ防止壁３６が近接して配置されている。 Here, as shown in FIGS. 4 and 5, when the case lid 6 is attached to the case body 5, outside the divided second bent portions 25 a and 25 b of the elastic member 21 arranged in the pair of electric wire insertion spaces 10 a. The elastic member collapse prevention wall 36 protruding from the inner wall of the case lid 6 is disposed in the vicinity. Moreover, although not shown in figure, the elastic member collapsed which protruded from the inner wall of the case cover body 6 also on the outer side of the divided second bent portions 25a and 25b of the elastic member 21 arranged in the other plural pairs of electric wire insertion spaces 10b to 10e. The prevention wall 36 is disposed in close proximity.

また、第１実施形態の弾性部材２１の分割第２曲げ部２５ａ，２５ｂの外側には、ケース蓋体６の内壁から突出した弾性部材倒れ防止壁３６が近接して配置されており、電線Ｗの芯線Ｗ１を弾性保持する際に、分割第２曲げ部２５ａ，２５ｂが弾性部材側接点部１５ｄから離間する方向（図５のＲ１方向）に変形しようとしても弾性部材倒れ防止壁３６に接触して変形しないので、芯線Ｗ１を弾性保持する力が弱まるのを防止することができる。
また、弾性部材２１に対して図５のＲ２方向の外力が加わっても、弾性部材２１の固定部２２の下端の嵌入凸部３４が基板部１５ｂの嵌入孔３３に嵌め込まれているので、嵌入孔３３に嵌め込まれた嵌入凸部３４が弾性部材２１の倒れを防止することができる。 In addition, an elastic member collapse prevention wall 36 protruding from the inner wall of the case lid 6 is disposed close to the outside of the divided second bent portions 25a and 25b of the elastic member 21 of the first embodiment. When the core wire W1 is elastically held, the divided second bent portions 25a and 25b come into contact with the elastic member collapse preventing wall 36 even if the divided second bent portions 25a and 25b try to deform in a direction away from the elastic member side contact portion 15d (R1 direction in FIG. 5). Therefore, the force for elastically holding the core wire W1 can be prevented from weakening.
Further, even when an external force in the R2 direction of FIG. 5 is applied to the elastic member 21, the insertion convex portion 34 at the lower end of the fixing portion 22 of the elastic member 21 is fitted into the insertion hole 33 of the substrate portion 15b. The fitting convex part 34 fitted in the hole 33 can prevent the elastic member 21 from falling.

Claims (7)

内部に電線挿入空間を設け、外部から前記電線挿入空間に電線を挿入する電線挿入口を設けたケースと、
前記電線挿入空間の前記電線が挿入される方向に沿って配置された接点部に前記電線が電気的に接続される固定接触子と、
前記電線挿入空間に配置され、前記電線挿入口から挿入された前記電線を弾性力で前記接点部に押し付ける弾性部材と、を備え、
前記弾性部材は、
平板状の固定部と、
前記固定部との間に鈍角形状の第１曲げ部を設けて連続する平板状の第１傾斜部と、
前記第１傾斜部との間に円弧形状の第２曲げ部を設けて前記第１傾斜部と略平行に延在する電線保持部と、を備え、
前記固定部が前記接点部に対向する位置で前記固定接触子に固定され、前記第２曲げ部が前記接点部から離間する方向に突出して配置され、前記電線保持部が電線挿入口の開口部近くを横切り、当該電線保持部の先端が前記接点部に向かって延在するように前記弾性部材が前記電線挿入空間に配置されていることを特徴とする電気機器の接続構造。 A case in which an electric wire insertion space is provided inside, and an electric wire insertion port for inserting an electric wire into the electric wire insertion space from the outside;
A stationary contact in which the electric wire is electrically connected to a contact portion disposed along a direction in which the electric wire is inserted in the electric wire insertion space;
An elastic member disposed in the electric wire insertion space and pressing the electric wire inserted from the electric wire insertion port against the contact portion with an elastic force;
The elastic member is
A plate-shaped fixing part;
A flat plate-shaped first inclined portion that is provided with an obtuse-angled first bent portion between the fixed portion and the continuous portion;
An electric wire holding portion that is provided with an arc-shaped second bent portion between the first inclined portion and extends substantially parallel to the first inclined portion;
The fixed portion is fixed to the fixed contact at a position facing the contact portion, the second bent portion is disposed so as to protrude away from the contact portion, and the wire holding portion is an opening portion of the wire insertion port. A connection structure for an electric device, characterized in that the elastic member is arranged in the electric wire insertion space so as to cross the vicinity and the tip of the electric wire holding portion extends toward the contact portion. 前記電線保持部に、鈍角形状の第３曲げ部が設けられていることを特徴とする請求項１記載の電気機器の接続構造。   The electrical wire connection structure according to claim 1, wherein the electric wire holding portion is provided with an obtuse third bent portion. 前記電線挿入空間に、前記弾性部材の前記第２曲げ部が前記接点部から離間する方向に変形するのを規制する変形規制部が配置されていることを特徴とする請求項１又は２に記載の電気機器の接続構造。   The deformation restriction part for restricting deformation of the second bending part of the elastic member in a direction away from the contact part is disposed in the electric wire insertion space. Electrical equipment connection structure. 内部に電線挿入空間を設け、外部から前記電線挿入空間に電線を挿入する電線挿入口を設けたケースと、
前記電線挿入空間の前記電線が挿入される方向に沿って配置された接点部に前記電線が電気的に接続される固定接触子と、
前記固定接触子に固定された状態で前記電線挿入空間に配置され、前記電線挿入口から挿入された前記電線を弾性力で前記接点部に押し付ける弾性部材と、を備え、
前記固定接触子に固定される前記弾性部材の固定部に、該固定部の端部が前記接点部側に移動するのを規制する移動規制部を形成したことを特徴とする電機機器の接続構造。 A case in which an electric wire insertion space is provided inside, and an electric wire insertion port for inserting an electric wire into the electric wire insertion space from the outside;
A stationary contact in which the electric wire is electrically connected to a contact portion disposed along a direction in which the electric wire is inserted in the electric wire insertion space;
An elastic member arranged in the electric wire insertion space in a state of being fixed to the fixed contact, and pressing the electric wire inserted from the electric wire insertion port against the contact portion with an elastic force,
A connection structure for electrical equipment, wherein a movement restricting portion for restricting movement of an end portion of the fixed portion to the contact portion side is formed in a fixed portion of the elastic member fixed to the fixed contact. . 前記移動規制部は、
前記弾性部材の前記固定部の端部に形成した嵌入凸部と、
前記固定接触子に形成した前記嵌入凸部が嵌まり込む嵌入孔と、を備えていることを特徴とする請求項４記載の電機機器の接続構造。 The movement restriction unit is
A fitting protrusion formed at an end of the fixed portion of the elastic member;
The electrical equipment connecting structure according to claim 4, further comprising: an insertion hole into which the insertion protrusion formed in the fixed contact is fitted. 前記弾性部材の前記固定部に、前記弾性部材が前記電線の引き抜き方向に抜けるのを防止する抜け止め部を形成したことを特徴とする請求項４又は５に記載の電機機器の接続構造。   6. The electrical equipment connection structure according to claim 4, wherein a retaining portion for preventing the elastic member from being pulled out in the drawing direction of the electric wire is formed in the fixing portion of the elastic member. 前記抜け止め部は、
前記弾性部材の前記固定部に形成した係合貫通孔と、
前記固定接触子に形成した前記係合貫通孔に係合する係合爪と、を備え、
前記固定部が前記固定接触子から離間しようとする外力が前記弾性部材に作用したときに、前記係合爪が前記係合貫通孔の周縁に係合して前記弾性部材の移動を阻止するようにしたことを特徴とする請求項６記載の電機機器の接続構造。 The retaining portion is
An engagement through hole formed in the fixed portion of the elastic member;
An engagement claw that engages with the engagement through hole formed in the fixed contact,
The engaging claw engages with the peripheral edge of the engagement through-hole to prevent the elastic member from moving when an external force is applied to the elastic member so that the fixed portion is separated from the fixed contact. The electrical equipment connecting structure according to claim 6, wherein the electrical equipment is connected.
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