JP6583585B2 - Connection unit, connection terminal block, and electrical equipment - Google Patents

Connection unit, connection terminal block, and electrical equipment Download PDF

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Publication number
JP6583585B2
JP6583585B2 JP2019515115A JP2019515115A JP6583585B2 JP 6583585 B2 JP6583585 B2 JP 6583585B2 JP 2019515115 A JP2019515115 A JP 2019515115A JP 2019515115 A JP2019515115 A JP 2019515115A JP 6583585 B2 JP6583585 B2 JP 6583585B2
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terminal
ferrule
housing
contact
insertion hole
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JPWO2018198497A1 (en
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謹斎 町田
謹斎 町田
浜田　佳伸
佳伸 浜田
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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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    • 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
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • 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
    • H01R9/2475—Means facilitating correct wiring, e.g. marking plates, identification tags
    • 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
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting

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  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Description

本発明は、接続ユニット、接続端子台、及び電気機器に関するものである。 The present invention relates to a connection unit, a connection terminal block, and an electric device.

特許文献１では、リレーやタイマー等を外部回路に接続するためのソケットが開示されており、外部回路との接続には、ハウジングの差込穴にリード線を差し込むだけでよいスプリング式の端子構造を採用している。   Patent Document 1 discloses a socket for connecting a relay, a timer, or the like to an external circuit. For connection to the external circuit, a spring-type terminal structure that only requires a lead wire to be inserted into the insertion hole of the housing. Is adopted.

特開２００２−２９８９４３号公報JP 2002-298934 A

リード線には、カラー部付きのフェルール端子が圧着されて使用されることがある。このフェルール端子をハウジングの差込穴へ差し込む場合、作業者はハウジングの内部でフェルール端子と板ばねが係合するときの感触から、差し込みが完了したと誤認し、差し込み量が不十分になることがあった。また差し込み量が不十分であったとしても、一見しただけでは識別しにくかった。
本発明の目的は、カラー部付きフェルール端子の差し込み作業が正しく完了しているか否かを視覚的に識別可能にすることである。A ferrule terminal with a collar portion may be used by being crimped to the lead wire. When inserting the ferrule terminal into the insertion hole of the housing, the operator may mistakenly recognize that the insertion has been completed due to the feel when the ferrule terminal and the leaf spring are engaged inside the housing, and the amount of insertion will be insufficient. was there. Even if the amount of insertion was insufficient, it was difficult to identify at first glance.
An object of the present invention is to make it possible to visually identify whether or not the insertion operation of a ferrule terminal with a collar portion has been correctly completed.

本発明の一態様に係る接続ユニットは、
カラー部付きのフェルール端子と、フェルール端子を保持するハウジングを有する接続端子台と、を備える接続ユニットであって、
ハウジングは、
フェルール端子の差込方向に直交する第一の面と、
差込方向に第一の面からフェルール端子をハウジングの内部へ挿通する差込穴と、
差込穴に直交し、且つ段差を介して第一の面よりも差込方向に配置された第二の面と、
差込穴の内周面に形成され、カラー部と当接する当接部と、を備え、
段差は、
当接部にカラー部が当接したときに、カラー部の引抜方向端部が、第一の面と第二の面との間に配置される範囲で形成される。 The connection unit according to one aspect of the present invention is
A connection unit comprising a ferrule terminal with a collar portion, and a connection terminal block having a housing for holding the ferrule terminal,
The housing is
A first surface perpendicular to the insertion direction of the ferrule terminal;
An insertion hole through which the ferrule terminal is inserted into the housing from the first surface in the insertion direction;
A second plane perpendicular to the insertion hole was and disposed in the insertion Direction than the first surface via a step,
Is formed on the inner peripheral surface of the insertion hole, provided with a contact portion collar and you contact, a,
The step is
When the collar portion comes into contact with the contact portion, the end portion in the drawing direction of the collar portion is formed in a range that is disposed between the first surface and the second surface.

本発明によれば、差込穴にフェルール端子が差し込まれ、当接部にカラー部が当接したときに、カラー部の引抜方向端部が、第一の面と第二の面との間に配置されるので、差し込み作業が正しく完了しているか否かを視覚的に識別することができる。 According to the present invention, when the ferrule terminal is inserted into the insertion hole and the collar portion comes into contact with the contact portion, the end portion in the pull-out direction of the collar portion is between the first surface and the second surface. Therefore, it is possible to visually identify whether or not the insertion work has been correctly completed.

接続端子台の斜視図である。It is a perspective view of a connection terminal block. 部分的に内部を示した接続端子台の斜視図である。It is the perspective view of the connection terminal block which showed the inside partially. 電線差込穴の断面図である（差し込み前）。It is sectional drawing of an electric wire insertion hole (before insertion). 第一の面と第二の面との段差を示す斜視図である（差し込み前）。It is a perspective view which shows the level | step difference of a 1st surface and a 2nd surface (before insertion). 電線差込穴の断面図である（差し込み後）。It is sectional drawing of an electric wire insertion hole (after insertion). 第一の面と第二の面との段差を示す斜視図である（差し込み後）。It is a perspective view which shows the level | step difference of a 1st surface and a 2nd surface (after insertion).

以下、本発明の実施形態を図面に基づいて説明する。なお、各図面は模式的なものであって、現実のものとは異なる場合がある。また、以下の実施形態は、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り、構成を下記のものに特定するものでない。すなわち、本発明の技術的思想は、特許請求の範囲に記載された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。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Each drawing is schematic and may be different from the actual one. Further, the following embodiments exemplify apparatuses and methods for embodying the technical idea of the present invention, and the configuration is not specified as follows. That is, the technical idea of the present invention can be variously modified within the technical scope described in the claims.

《構成》
実施形態は、ハウジングに差し込まれるカラー部付きのフェルール端子を保持可能な接続端子台であって、ハウジングは、フェルール端子の差込方向に直交する第一の面と、差込方向に直交し、且つ段差を介して第一の面よりも差込方向の奥側に配置された第二の面と、差込方向に沿って第二の面からハウジングの内部へと貫通し、フェルール端子を挿通可能な差込穴と、差込穴の内周面に形成され、フェルール端子が差し込まれたときに、カラー部の先端と当接することにより、それ以上の差し込みを阻止する当接部と、を備え、段差は、当接部にカラー部の先端が当接したときに、カラー部の基端が、第一の面と第二の面との間に配置される範囲で設定される。"Constitution"
The embodiment is a connection terminal block capable of holding a ferrule terminal with a collar portion to be inserted into the housing, the housing being orthogonal to the insertion direction of the first surface orthogonal to the insertion direction of the ferrule terminal, In addition, the second surface disposed in the insertion direction with respect to the first surface through the step and the second surface along the insertion direction from the second surface to the inside of the housing, the ferrule terminal is inserted A possible insertion hole, and an abutting portion that is formed on the inner peripheral surface of the insertion hole and prevents further insertion by contacting the tip of the collar when the ferrule terminal is inserted. The step is set in a range in which the base end of the collar portion is disposed between the first surface and the second surface when the tip of the collar portion contacts the contact portion.

図１は、接続端子台の斜視図である。
以下の説明では、空間内で互いに直交する三方向を、便宜的に、幅方向、縦方向、及び奥行方向とする。
接続端子台１１は、リレーを外部回路に接続するためのターミナルソケットである。縦方向の一端側には、一次側のリード線を接続可能なコイル端子用の一次側端子部１２が形成されている。縦方向の中央には、例えば４極の接点を有するリレーを接続可能なリレー端子部１３が形成されている。縦方向の他端側には、コモン端子用、ａ接点端子用、ｂ接点端子用の二次側のリード線を接続可能な二次側端子部１４が形成されている。一次側端子部１２、リレー端子部１３、及び二次側端子部１４は、ハウジング１５によって一体化されている。FIG. 1 is a perspective view of a connection terminal block.
In the following description, three directions orthogonal to each other in the space are referred to as a width direction, a vertical direction, and a depth direction for convenience.
The connection terminal block 11 is a terminal socket for connecting the relay to an external circuit. A primary terminal portion 12 for a coil terminal to which a primary lead wire can be connected is formed on one end side in the vertical direction. At the center in the vertical direction, for example, a relay terminal portion 13 is formed to which a relay having a four-pole contact can be connected. On the other end side in the vertical direction, a secondary side terminal portion 14 is formed that can connect secondary lead wires for common terminals, a contact terminals, and b contact terminals. The primary side terminal portion 12, the relay terminal portion 13, and the secondary side terminal portion 14 are integrated by a housing 15.

ハウジング１５において、奥行方向の手前側となる上面は、リレー端子部１３が一次側端子部１２及び二次側端子部１４よりも奥行方向の奥側に配置されている。
一次側端子部１２は、スプリング式の端子構造であり、ハウジング１５の上面には、奥行方向に沿ってリード線を差し込み可能な複数の電線差込穴２１が形成されている。幅方向の一端側には、一方の極性用として二つの電線差込穴２１ｃと２１ｄが形成され、幅方向の他端側には、他方の極性用として二つの電線差込穴２１ａと２１ｂが形成されている。したがって、一次側端子部１２には計４個の電線差込穴２１がある。極性が同一となる二つの電線差込穴２１は、幅方向及び縦方向の双方にずらして配列されている。ハウジング１５の上面には、奥行方向に沿って工具を差し込み可能な複数の工具差込穴２２が形成されている。工具差込穴２２は、各電線差込穴２１ａ〜２１ｄに対して一つずつ設けられており、夫々、電線差込穴２１ａ〜２１ｄよりも縦方向の他端側に配置されている。したがって、一次側端子部１２には計４個の工具差込穴２２がある。In the housing 15, the relay terminal portion 13 is disposed on the deeper side in the depth direction than the primary side terminal portion 12 and the secondary side terminal portion 14 on the upper surface on the near side in the depth direction.
The primary side terminal portion 12 has a spring type terminal structure, and a plurality of electric wire insertion holes 21 into which lead wires can be inserted along the depth direction are formed on the upper surface of the housing 15. Two wire insertion holes 21c and 21d for one polarity are formed on one end side in the width direction, and two wire insertion holes 21a and 21b for the other polarity are formed on the other end side in the width direction. Is formed. Therefore, the primary terminal portion 12 has a total of four wire insertion holes 21. The two electric wire insertion holes 21 having the same polarity are arranged so as to be shifted in both the width direction and the vertical direction. A plurality of tool insertion holes 22 into which tools can be inserted along the depth direction are formed on the upper surface of the housing 15. One tool insertion hole 22 is provided for each of the electric wire insertion holes 21a to 21d, and is disposed on the other end side in the vertical direction from the electric wire insertion holes 21a to 21d. Therefore, the primary side terminal portion 12 has a total of four tool insertion holes 22.

リレー端子部１３は、プラグイン式の端子構造であり、ハウジング１５の上面には、奥行方向に沿ってプラグを差し込み可能な複数のプラグ差込口２３が形成されている。縦方向の一端側には、コイル端子用として二つのプラグ差込口２３が形成されている。縦方向の他端側には、コモン端子用、ａ接点端子用、及びｂ接点端子用として三つのプラグ差込口２３が縦方向に沿って形成されており、これら三つを一組とし、幅方向に沿って四組分が配列されている。したがって、リレー端子部１３には計１４個のプラグ差込口２３がある。   The relay terminal portion 13 has a plug-in type terminal structure, and a plurality of plug insertion ports 23 into which plugs can be inserted along the depth direction are formed on the upper surface of the housing 15. Two plug insertion ports 23 are formed on one end side in the vertical direction for coil terminals. On the other end side in the vertical direction, three plug insertion ports 23 are formed along the vertical direction for the common terminal, for the a contact terminal, and for the b contact terminal. Four pairs are arranged along the width direction. Therefore, the relay terminal portion 13 has a total of 14 plug insertion ports 23.

二次側端子部１４は、スプリング式の端子構造であり、ハウジング１５の上面には、奥行方向に沿ってリード線を差し込み可能な４極に対応する複数の電線差込穴２４が形成されている。二次側端子部１４は、縦方向の一端側から他端側に向けて、奥行方向の高さが順に低くなる三つの段がある。上段には、例えばｂ接点端子用として１極あたり二つの電線差込穴２４ａ〜２４ｈが形成され、中段には、例えばａ接点端子用として１極あたり二つの電線差込穴２４ｉ〜２４ｐが形成され、下段には、例えばコモン端子用として１極あたり二つの電線差込穴２４ｑ〜２４ｘが形成されている。各段において、１電極の二つの電線差込穴２４（例えば２４ａと２４ｂ）は、幅方向及び縦方向の双方にずらして配列されている。これら六つの電線差込穴２４（例えば２４ａ、２４ｂ、２４ｉ、２４ｊ、２４ｑ、及び２４ｒ）を一組とし、幅方向に沿って４極分が配列されている。したがって、二次側端子部１４には計２４個の電線差込穴２４がある。ハウジング１５の上面には、奥行方向に沿って工具を差し込み可能な複数の工具差込穴２５が形成されている。各段において、工具差込穴２５は、各電線差込穴２４ａ〜２４ｘに対して一つずつ設けられており、夫々、電線差込穴２４よりも縦方向の一端側に配置されている。したがって、二次側端子部１４には計２４個の工具差込穴２５がある。   The secondary terminal portion 14 has a spring-type terminal structure, and a plurality of wire insertion holes 24 corresponding to four poles into which lead wires can be inserted along the depth direction are formed on the upper surface of the housing 15. Yes. The secondary side terminal portion 14 has three steps in which the height in the depth direction decreases in order from one end side in the vertical direction to the other end side. In the upper stage, for example, two wire insertion holes 24a to 24h per pole are formed for the b contact terminal, and in the middle stage, for example, two wire insertion holes 24i to 24p are formed per pole for the a contact terminal. In the lower stage, for example, two wire insertion holes 24q to 24x are formed per pole for a common terminal. In each stage, the two electric wire insertion holes 24 (for example, 24a and 24b) of one electrode are arranged shifted in both the width direction and the vertical direction. These six electric wire insertion holes 24 (for example, 24a, 24b, 24i, 24j, 24q, and 24r) are set as a set, and four poles are arranged along the width direction. Accordingly, the secondary terminal portion 14 has a total of 24 wire insertion holes 24. A plurality of tool insertion holes 25 into which tools can be inserted along the depth direction are formed on the upper surface of the housing 15. In each stage, one tool insertion hole 25 is provided for each of the electric wire insertion holes 24 a to 24 x, and each of the tool insertion holes 25 is arranged on one end side in the vertical direction from the electric wire insertion hole 24. Therefore, the secondary terminal portion 14 has a total of 24 tool insertion holes 25.

図２は、部分的に内部を示した接続端子台の斜視図である。
一次側端子部１２、及び二次側端子部１４は、基本的に同様の構造であるため、ここでは二次側端子部１４を例に説明する。
ハウジング１５の内部には、各プラグ差込口２３における奥行方向の奥側に、刃受けばね３１が設けられている。刃受けばね３１は、対向し付勢し合う一対のばね片を備え、この一対のばね片の間に差し込まれたプラグを挟持する。各電線差込穴２４ａ〜２４ｘにおける奥行方向の奥側には、スプリング金具３２（導電端子部材）が設けられており、各スプリング金具３２はベース部材である中間ベース４６に取付けられている。スプリング金具３２は、奥行方向及び幅方向と略平行な押付面３３と、この押付面３３に対して付勢された板ばね３４（弾性部材）と、を備え、これら押付面３３と板ばね３４との間に差し込まれたリード線を挟持する。刃受けばね３１及びスプリング金具３２よりも奥行方向の奥側には、これらを電気的に接続する中継導電板３５が設けられている。中継導電板３５は、コイル端子用に二系統あり、コモン端子用、ａ接点端子用、及びｂ接点端子用に、夫々、四系統ある。FIG. 2 is a perspective view of the connection terminal block partially showing the inside.
Since the primary side terminal portion 12 and the secondary side terminal portion 14 have basically the same structure, the secondary side terminal portion 14 will be described as an example here.
Inside the housing 15, a blade receiving spring 31 is provided on the back side in the depth direction of each plug insertion port 23. The blade receiving spring 31 is provided with a pair of spring pieces facing and biasing each other, and sandwiches a plug inserted between the pair of spring pieces. A spring metal fitting 32 (conductive terminal member) is provided on the inner side of each of the electric wire insertion holes 24a to 24x in the depth direction, and each spring metal fitting 32 is attached to an intermediate base 46 that is a base member. The spring fitting 32 includes a pressing surface 33 that is substantially parallel to the depth direction and the width direction, and a leaf spring 34 (elastic member) that is biased against the pressing surface 33, and the pressing surface 33 and the leaf spring 34. Hold the lead wire inserted in between. A relay conductive plate 35 that electrically connects these blade receiving springs 31 and spring fittings 32 in the depth direction is provided. The relay conductive plate 35 has two systems for the coil terminal, and there are four systems for the common terminal, the a contact terminal, and the b contact terminal, respectively.

電線差込穴２４に差し込まれるリード線１６には、カラー部１７付きのフェルール端子１８が圧着されている。フェルール端子１８は、より線のバラケを防止し、電気接続の品質を安定させるための棒形圧着端子である。カラー部１７の先端側は、先端１７ａに向かうほど小径となるテーパ面１９が形成されており、基端１７ｂ側の直径は、フェルール端子１８の端子部１８ａよりも大きい。
次に、電線差込穴２４の構造について説明する。
二次側端子部１４に形成された電線差込穴２４は、何れも同一の構造であるが、ここでは下段に形成された電線差込穴２４を例に説明する。
図３は、電線差込穴の断面図である（差し込み前）。
ハウジング１５は、奥行方向に直交する第一の面４１と、奥行方向に直交し、且つ段差ｄを介して第一の面４１よりも奥行方向の奥側に配置された第二の面４２と、を備える。A ferrule terminal 18 with a collar portion 17 is crimped to the lead wire 16 inserted into the electric wire insertion hole 24. The ferrule terminal 18 is a bar-type crimp terminal for preventing the stranding variation and stabilizing the quality of electrical connection. A tapered surface 19 having a smaller diameter toward the distal end 17 a is formed on the distal end side of the collar portion 17, and the diameter on the proximal end 17 b side is larger than the terminal portion 18 a of the ferrule terminal 18.
Next, the structure of the electric wire insertion hole 24 will be described.
The electric wire insertion holes 24 formed in the secondary terminal portion 14 have the same structure, but here, the electric wire insertion holes 24 formed in the lower stage will be described as an example.
FIG. 3 is a cross-sectional view of the wire insertion hole (before insertion).
The housing 15 includes a first surface 41 that is orthogonal to the depth direction, and a second surface 42 that is orthogonal to the depth direction and is disposed on the back side in the depth direction with respect to the first surface 41 via a step d. .

図４は、第一の面と第二の面との段差を示す斜視図である（差し込み前）。
第一の面４１は、ハウジング１５において、縦方向の他端側となる側面２６に接している。したがって、第一の面４１は全周が段差ｄに囲まれているわけではなく、縦方向の他端側が開放された状態にある。
図３に示すように、電線差込穴２４は、第二の面４２からハウジング１５の内部へと向かって順に、大径部４３と、当接部４４と、小径部４５と、を備える。大径部４３の直径は、カラー部１７よりも僅かに大きい寸法である。大径部４３は、内周面のうち押付面３３に対して反押付方向の側、つまり縦方向の一端側が、第二の面４２に向かうほど反押付方向に角度θだけ傾斜している。当接部４４は、奥行方向の奥側に向かうほど小径となるテーパ面である。ハウジング１５の奥行方向に対する当接部４４のテーパ角度は、カラー部１７の奥行方向に対するテーパ面１９の角度よりも大きい。ハウジング１５の小径部４５の直径は、カラー部１７の先端１７ａの直径よりも小さく、且つフェルール端子１８の端子部１８ａの直径よりも大きな寸法である。FIG. 4 is a perspective view showing a step between the first surface and the second surface (before insertion).
The first surface 41 is in contact with the side surface 26 which is the other end side in the vertical direction in the housing 15. Accordingly, the entire circumference of the first surface 41 is not surrounded by the step d, and the other end side in the vertical direction is open.
As shown in FIG. 3, the electric wire insertion hole 24 includes a large diameter portion 43, a contact portion 44, and a small diameter portion 45 in order from the second surface 42 toward the inside of the housing 15. The diameter of the large diameter portion 43 is slightly larger than that of the collar portion 17. The large-diameter portion 43 is inclined in the counter-pressing direction by an angle θ toward the second surface 42 on the side of the inner circumferential surface in the counter-pressing direction with respect to the pressing surface 33, that is, one end side in the vertical direction. The contact portion 44 is a tapered surface having a smaller diameter toward the back side in the depth direction. The taper angle of the contact portion 44 with respect to the depth direction of the housing 15 is larger than the angle of the taper surface 19 with respect to the depth direction of the collar portion 17. The diameter of the small diameter portion 45 of the housing 15 is smaller than the diameter of the tip 17 a of the collar portion 17 and larger than the diameter of the terminal portion 18 a of the ferrule terminal 18.

図５は、電線差込穴の断面図である（差し込み後）。
電線差込穴２４にフェルール端子１８が差し込まれると、フェルール端子１８の端子部１８ａに押されて板ばね３４が弾性変形する。そして、板ばね３４の先端と押付面３３との間にフェルール端子１８の端子部１８ａが差し込まれると、板ばね３４の弾性力によってフェルール端子１８の端子部１８ａが押付面３３に押し付けられ、且つ引き抜き方向の変位が抑制される。ここでは、作図の便宜上、カラー部１７付のフェルール端子１８に傾きがない状態を示しているが、実際にはフェルール端子１８の端子部１８ａが板ばね３４によって押付面３３の側に押圧されることで、カラー部１７付のフェルール端子１８が奥行方向に対して縦方向の一端側に傾き、押付面３３に接触する。したがって、フェルール端子１８を差し込んだときに、カラー部１７付のフェルール端子１８の僅かな傾きを積極的に許容するために、大径部４３の直径、角度θ、当接部４４のテーパ角度、小径部４５の直径等が設定されている。FIG. 5 is a cross-sectional view of the electric wire insertion hole (after insertion).
When the ferrule terminal 18 is inserted into the wire insertion hole 24, the leaf spring 34 is elastically deformed by being pushed by the terminal portion 18 a of the ferrule terminal 18. When the terminal portion 18a of the ferrule terminal 18 is inserted between the tip of the leaf spring 34 and the pressing surface 33, the terminal portion 18a of the ferrule terminal 18 is pressed against the pressing surface 33 by the elastic force of the leaf spring 34, and The displacement in the drawing direction is suppressed. Here, for convenience of drawing, a state is shown in which the ferrule terminal 18 with the collar portion 17 is not inclined, but actually the terminal portion 18a of the ferrule terminal 18 is pressed toward the pressing surface 33 by the leaf spring 34. Thus, the ferrule terminal 18 with the collar portion 17 is inclined to one end side in the vertical direction with respect to the depth direction and contacts the pressing surface 33. Therefore, in order to positively allow a slight inclination of the ferrule terminal 18 with the collar portion 17 when the ferrule terminal 18 is inserted, the diameter of the large diameter portion 43, the angle θ, the taper angle of the contact portion 44, The diameter of the small diameter portion 45 is set.

当接部４４は、フェルール端子１８が差し込まれたときに、カラー部１７の先端１７ａと当接することにより、それ以上の差し込みを阻止する。また、当接部４４は、フェルール端子１８の端子部１８ａの先端と中間ベース４６との間に隙間が空くように設定されており、図５に示すように、フェルール端子１８が差し込まれた際に、端子部１８ａの先端が中間ベース４６に当たらないようになっている。そして、当接部４４にカラー部１７のテーパ面１９が当接したときに、カラー部１７の基端１７ｂが、第一の面４１と第二の面４２との間に配置されるように、段差ｄが設定されている。ここでは、カラー部１７の長さが６.０ｍｍ、フェルール端子１８の長さが８.０ｍｍ、全長１４.０ｍｍのものを使用することを想定しており、段差ｄは１.５〜２.０ｍｍの範囲に設定されている。
なお、工具差込穴２５に例えばマイナスドライバ等の工具が差し込まれると、工具の先端に押されて板ばね３４が弾性変形し、板ばね３４の弾性力から解放されたときに、フェルール端子１８の引き抜きが許容される。When the ferrule terminal 18 is inserted, the abutment portion 44 abuts against the tip 17a of the collar portion 17 to prevent further insertion. Further, the contact portion 44 is set so that a gap is provided between the tip of the terminal portion 18a of the ferrule terminal 18 and the intermediate base 46, and when the ferrule terminal 18 is inserted as shown in FIG. In addition, the tip of the terminal portion 18 a does not hit the intermediate base 46. Then, when the tapered surface 19 of the collar portion 17 abuts on the abutting portion 44, the base end 17 b of the collar portion 17 is disposed between the first surface 41 and the second surface 42. , A step d is set. Here, it is assumed that the collar portion 17 has a length of 6.0 mm, the ferrule terminal 18 has a length of 8.0 mm, and a total length of 14.0 mm, and the step d is 1.5-2. The range is set to 0 mm.
When a tool such as a flat-blade screwdriver is inserted into the tool insertion hole 25, the ferrule terminal 18 is pressed when the leaf spring 34 is elastically deformed by being pushed by the tip of the tool and released from the elastic force of the leaf spring 34. Can be pulled out.

《作用》
次に実施形態の主要な作用について説明する。
フェルール端子１８をハウジング１５の電線差込穴２４へ差し込む場合、作業者はハウジング１５の内部でフェルール端子１８と板ばね３４が係合するときの感触から、差し込みが完了したと誤認し、差し込み量が不十分になることがあった。また差し込み量が不十分であったとしても、一見しただけでは識別しにくかった。
そこで、ハウジング１５には、段差ｄを有する第一の面４１と第二の面４２とを形成している。電線差込穴２４の当接部４４は、フェルール端子１８が差し込まれると、カラー部１７のテーパ面１９に当接し、それ以上の差し込みを阻止する。この状態でカラー部１７の基端１７ｂが、第一の面４１と第二の面４２との間に配置されるように、段差ｄの高さが設定されている。<Action>
Next, main functions of the embodiment will be described.
When inserting the ferrule terminal 18 into the electric wire insertion hole 24 of the housing 15, the operator mistakes that the insertion is completed from the feel when the ferrule terminal 18 and the leaf spring 34 are engaged inside the housing 15. May be insufficient. Even if the amount of insertion was insufficient, it was difficult to identify at first glance.
Therefore, the housing 15 is formed with a first surface 41 and a second surface 42 having a step d. When the ferrule terminal 18 is inserted, the contact portion 44 of the electric wire insertion hole 24 contacts the tapered surface 19 of the collar portion 17 and prevents further insertion. In this state, the height of the step d is set so that the base end 17 b of the collar portion 17 is disposed between the first surface 41 and the second surface 42.

図６は、第一の面と第二の面との段差を示す斜視図である（差し込み後）。
電線差込穴２４にフェルール端子１８が差し込まれ、当接部４４にカラー部１７の先端１７ａが当接したときに、カラー部１７の基端１７ｂが、第一の面４１と第二の面４２との間に配置される。したがって、差し込み作業が正しく完了しているか否かを視覚的に識別することができる。すなわち、カラー部１７の基端１７ｂが、第一の面４１と第二の面４２との間にあるときには、差し込みが完了していることを示し、カラー部１７の基端１７ｂが、第一の面４１よりも飛び出ているときには、差し込み量が不十分であることを示す。このように、新たに部品を追加する必要もなく、簡易な構造で、差し込み作業が正しく完了していることを容易に識別することができる。FIG. 6 is a perspective view showing a step between the first surface and the second surface (after insertion).
When the ferrule terminal 18 is inserted into the wire insertion hole 24 and the distal end 17a of the collar portion 17 comes into contact with the contact portion 44, the base end 17b of the collar portion 17 becomes the first surface 41 and the second surface. 42. Therefore, it is possible to visually identify whether or not the insertion work has been correctly completed. That is, when the base end 17b of the collar portion 17 is between the first surface 41 and the second surface 42, it indicates that the insertion is completed, and the base end 17b of the collar portion 17 is When it protrudes from the surface 41, it indicates that the amount of insertion is insufficient. Thus, it is not necessary to add a new part, and it is possible to easily identify that the insertion work has been completed with a simple structure.

電線差込穴２４にフェルール端子１８が差し込まれると、フェルール端子１８に押されて板ばね３４が弾性変形する。そして、板ばね３４の先端と押付面３３との間にフェルール端子１８が差し込まれると、板ばね３４の弾性力によってフェルール端子１８が押付面３３に押し付けられ、且つ引き抜き方向の変位が抑制される。したがって、フェルール端子１８の緩みや抜け落ちを抑制できる。
一方、工具差込穴２５に工具が差し込まれると、工具に押されて板ばね３４が弾性変形し、板ばね３４の弾性力からフェルール端子１８が解放される。このように、工具を用いることで、フェルール端子１８を容易に引き抜くことができる。When the ferrule terminal 18 is inserted into the electric wire insertion hole 24, the leaf spring 34 is elastically deformed by being pushed by the ferrule terminal 18. When the ferrule terminal 18 is inserted between the tip of the leaf spring 34 and the pressing surface 33, the ferrule terminal 18 is pressed against the pressing surface 33 by the elastic force of the leaf spring 34, and displacement in the pulling direction is suppressed. . Therefore, loosening and falling off of the ferrule terminal 18 can be suppressed.
On the other hand, when a tool is inserted into the tool insertion hole 25, the leaf spring 34 is elastically deformed by being pushed by the tool, and the ferrule terminal 18 is released from the elastic force of the leaf spring 34. Thus, the ferrule terminal 18 can be easily pulled out by using a tool.

電線差込穴２４において、大径部４３はカラー部１７よりも大きく、内周面のうち押付面３３に対して反押付方向の側が、第二の面４２に向かうほど反押付方向に角度θだけ傾斜している。また、当接部４４とカラー部１７のテーパ面１９とが面接触することがないように、当接部４４のテーパ角度とテーパ面１９の角度とを異ならせてある。さらに、小径部４５はフェルール端子１８よりも大きい。これにより、電線差込穴２４に対して、ある程度の遊びをもってカラー部１７付のフェルール端子１８が嵌り合う。したがって、フェルール端子１８を差し込んだときに、カラー部１７付のフェルール端子１８の僅かな傾きが許容され、押付面３３へ確実に接触させることができるので、電気接続の品質が安定する。   In the electric wire insertion hole 24, the large-diameter portion 43 is larger than the collar portion 17, and the angle θ in the counter-pressing direction becomes larger as the side in the counter-pressing direction with respect to the pressing surface 33 of the inner peripheral surface is directed to the second surface 42. Just tilted. Further, the taper angle of the contact portion 44 and the angle of the taper surface 19 are made different so that the contact portion 44 and the tapered surface 19 of the collar portion 17 do not come into surface contact. Further, the small diameter portion 45 is larger than the ferrule terminal 18. Thereby, the ferrule terminal 18 with the collar part 17 fits in the electric wire insertion hole 24 with a certain amount of play. Accordingly, when the ferrule terminal 18 is inserted, a slight inclination of the ferrule terminal 18 with the collar portion 17 is allowed and can be reliably brought into contact with the pressing surface 33, so that the quality of electrical connection is stabilized.

《変形例》
上記の実施形態では、当接部４４がテーパ面である構成について説明したが、これに限定されるものではない。フェルール端子１８が差し込まれたときに、カラー部１７の先端と当接することにより、それ以上の差し込みを阻止することができればよいので、単なる段差としてもよい。
上記の実施形態では、奥行方向に対する当接部４４のテーパ角度が、奥行方向に対するテーパ面１９の角度よりも大きい構成について説明しているが、これに限定されるものではない。奥行方向に対する当接部４４のテーパ角度をテーパ面１９の角度よりも小さくしてもよい。これはカラー部１７付きのフェルール端子１８の傾きを許容しやすくするためである。しかしながら、大径部４３に対するカラー部１７の遊びや、小径部４５に対するフェルール端子１８の遊びによって、カラー部１７付きのフェルール端子１８の傾きを許容できるのであれば、奥行方向に対する当接部４４のテーパ角度とテーパ面１９の角度とを一致させてもよい。<Modification>
In the above-described embodiment, the configuration in which the contact portion 44 is a tapered surface has been described. However, the configuration is not limited thereto. When the ferrule terminal 18 is inserted, it is only necessary to prevent further insertion by abutting against the tip of the collar portion 17, so that it may be a simple step.
In the above-described embodiment, the configuration in which the taper angle of the contact portion 44 with respect to the depth direction is larger than the angle of the taper surface 19 with respect to the depth direction is described, but the present invention is not limited to this. The taper angle of the contact portion 44 with respect to the depth direction may be smaller than the angle of the taper surface 19. This is to make it easier to allow the inclination of the ferrule terminal 18 with the collar portion 17. However, if the inclination of the ferrule terminal 18 with the collar portion 17 can be allowed by the play of the collar portion 17 with respect to the large diameter portion 43 and the play of the ferrule terminal 18 with respect to the small diameter portion 45, the contact portion 44 with respect to the depth direction can be The taper angle and the angle of the taper surface 19 may be matched.

上記の実施形態では、ａ接点端子及びｂ接点端子を組み合わせたｃ接点のリレーについて説明したが、これに限定されるものではなく、ａ接点のリレーやｂ接点のリレーにも適用できる。また、４極の接点を有するリレーについて説明したが、これに限定されるものではなく、１極、２極、又は３極のリレーにも適用できる。さらに、リレーに限定されるものではなく、タイマーにも適用できる。
上記の実施形態では、リレーやタイマー等を外部回路に接続するためのターミナルソケットについて説明したが、これに限定されるものではない。要は、ハウジング１５に差し込まれたカラー部１７付きのフェルール端子１８を保持可能なスプリング式の端子構造であれば、他の如何なる電気機器や付属装置にも適用可能である。In the above embodiment, the c-contact relay in which the a-contact terminal and the b-contact terminal are combined has been described. However, the present invention is not limited to this, and can be applied to an a-contact relay and a b-contact relay. Moreover, although the relay which has a 4 pole contact point was demonstrated, it is not limited to this, It can apply also to a 1 pole, 2 pole, or 3 pole relay. Furthermore, the present invention is not limited to relays but can be applied to timers.
In the above embodiment, a terminal socket for connecting a relay, a timer, and the like to an external circuit has been described. However, the present invention is not limited to this. In short, as long as the spring-type terminal structure is capable of holding the ferrule terminal 18 with the collar portion 17 inserted into the housing 15, it can be applied to any other electric device or accessory device.

以上、限られた数の実施形態を参照しながら説明したが、権利範囲はそれらに限定されるものではなく、上記の開示に基づく実施形態の改変は、当業者にとって自明のことである。   Although the present invention has been described with reference to a limited number of embodiments, the scope of rights is not limited thereto, and modifications of the embodiments based on the above disclosure are obvious to those skilled in the art.

１１ 接続端子台
１２ 一次側端子部
１３ リレー端子部
１４ 二次側端子部
１５ ハウジング
１６ リード線
１７ カラー部
１７ａ カラー部の先端
１７ｂ カラー部の基端
１８ フェルール端子
１８ａ 端子部
１９ テーパ面
２１ 電線差込穴
２１ａ〜２１ｄ 電線差込穴（コイル端子用）
２２ 工具差込穴
２３ プラグ差込口
２４ 電線差込穴
２４ａ〜２４ｈ 電線差込穴（ｂ接点端子用）
２４ｉ〜２４ｐ 電線差込穴（ａ接点端子用）
２４ｑ〜２４ｘ 電線差込穴（コモン端子用）
２５ 工具差込穴
２６ 側面
３１ 刃受けばね
３２ スプリング金具
３３ 押付面
３４ 板ばね
３５ 中継導電板
４１ 第一の面
４２ 第二の面
４３ 大径部
４４ 当接部
４５ 小径部
４６ 中間ベースDESCRIPTION OF SYMBOLS 11 Connection terminal block 12 Primary side terminal part 13 Relay terminal part 14 Secondary side terminal part 15 Housing 16 Lead wire 17 Collar part 17a Collar end 17b Collar base end 18 Ferrule terminal 18a Terminal part 19 Tapered surface 21 Wire difference Insertion holes 21a to 21d Wire insertion holes (for coil terminals)
22 Tool insertion hole 23 Plug insertion port 24 Electric wire insertion hole 24a-24h Electric wire insertion hole (for b contact terminal)
24i-24p Electric wire insertion hole (for a contact terminal)
24q-24x Wire insertion hole (for common terminal)
25 Tool insertion hole 26 Side surface 31 Blade receiving spring 32 Spring fitting 33 Pressing surface 34 Leaf spring 35 Relay conductive plate 41 First surface 42 Second surface 43 Large diameter portion 44 Contact portion 45 Small diameter portion 46 Intermediate base

Claims (7)

カラー部付きのフェルール端子と、前記フェルール端子を保持するハウジングを有する接続端子台と、を備える接続ユニットであって、
前記ハウジングは、
前記フェルール端子の差込方向に直交する第一の面と、
前記差込方向に前記第一の面から前記フェルール端子を前記ハウジングの内部へ挿通する差込穴と、
前記差込穴に直交し、且つ段差を介して前記第一の面よりも前記差込方向に配置された第二の面と、
前記差込穴の内周面に形成され、前記カラー部と当接する当接部と、を備え、
前記段差は、
前記当接部に前記カラー部が当接したときに、前記カラー部の引抜方向端部が、前記第一の面と前記第二の面との間に配置される範囲で形成されることを特徴とする接続ユニット。 A connection unit comprising a ferrule terminal with a collar portion, and a connection terminal block having a housing for holding the ferrule terminal,
The housing is
A first surface orthogonal to the insertion direction of the ferrule terminal;
An insertion hole through which the ferrule terminal is inserted into the housing from the first surface in the insertion direction;
A second surface on which the perpendicular to the insertion hole, being and arranged on the insertion Direction than said first surface via a step,
Wherein formed on the inner peripheral surface of the insertion hole, before SL includes collar portion and a contact portion you contact, a,
The step is
When the collar portion comes into contact with the contact portion, an end portion in the pull-out direction of the collar portion is formed in a range arranged between the first surface and the second surface. Feature connection unit . 請求項１に記載の接続ユニットに用いられる接続端子台。 A connection terminal block used in the connection unit according to claim 1 . 前記ハウジングの内部に設けられたベース部材を備え、A base member provided inside the housing;
前記当接部の当接面と前記ベース部材の底面との距離が、前記フェルール端子の端子部より長いことを特徴とする請求項２に記載の接続端子台。The connection terminal block according to claim 2, wherein a distance between a contact surface of the contact portion and a bottom surface of the base member is longer than a terminal portion of the ferrule terminal. 前記ハウジングの内部に設けられた導電端子部材を備え、
前記導電端子部材は、
前記差込方向と平行な押付面と、
前記押付面に対して付勢され、前記差込穴に差し込まれた前記フェルール端子を前記押付面に押し付ける弾性部材と、を備えることを特徴とする請求項２又は３に記載の接続端子台。 A conductive terminal member provided inside the housing;
The conductive terminal member is
A pressing surface parallel to the insertion direction;
The connection terminal block according to claim 2 , further comprising: an elastic member that is urged against the pressing surface and presses the ferrule terminal that is inserted into the insertion hole against the pressing surface. 前記差込穴は、
前記第二の面から前記ハウジングの内部へと向かって順に、前記カラー部を挿入可能な大径部と、前記差込方向に向かうほど小径となるテーパ面からなる前記当接部と、前記フェルール端子を挿通可能な小径部と、を備え、
前記大径部は、
内周面のうち前記押付面に対して反押付方向の側が、前記第二の面に向かうほど前記反押付方向に傾斜していることを特徴とする請求項４に記載の接続端子台。 The insertion hole is
In order from the second surface toward the inside of the housing, the large-diameter portion into which the collar portion can be inserted, the abutting portion including a tapered surface that decreases in diameter toward the insertion direction, and the ferrule A small diameter portion through which the terminal can be inserted,
The large diameter portion is
5. The connection terminal block according to claim 4 , wherein a side of the inner circumferential surface in the counter pressing direction with respect to the pressing surface is inclined in the counter pressing direction toward the second surface. 前記当接部は、
前記フェルール端子が差し込まれた際に、前記フェルール端子の先端と前記ベース部材との間に隙間が空くように設定されていることを特徴とする請求項３に記載の接続端子台。 Before SL contact portion,
The connection terminal block according to claim 3 , wherein when the ferrule terminal is inserted, a clearance is set between the tip of the ferrule terminal and the base member. 請求項２〜６の何れか一項に記載の接続端子台を備えた電気機器。 An electric device comprising the connection terminal block according to any one of claims 2 to 6 .
JP2019515115A 2017-04-25 2018-02-20 Connection unit, connection terminal block, and electrical equipment Active JP6583585B2 (en)

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