JP6405873B2 - Terminal block for magnetic parts and mold apparatus for molding the terminal block - Google Patents

Terminal block for magnetic parts and mold apparatus for molding the terminal block Download PDF

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JP6405873B2
JP6405873B2 JP2014210983A JP2014210983A JP6405873B2 JP 6405873 B2 JP6405873 B2 JP 6405873B2 JP 2014210983 A JP2014210983 A JP 2014210983A JP 2014210983 A JP2014210983 A JP 2014210983A JP 6405873 B2 JP6405873 B2 JP 6405873B2
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terminal block
terminal
mold
shaft
main body
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JP2016081680A (en
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氏家　直樹
直樹 氏家
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Sumida Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/10—Connecting leads to windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F2007/062—Details of terminals or connectors for electromagnets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Electromagnets (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Description

本発明は、例えば、車載用のソレノイド等の磁性部品の端子台、およびこの端子台を成形する金型装置に関し、詳しくは、クリップ端子等の導電性端子を支持してなる磁性部品の端子台、およびこの端子台を成形する金型装置に関するものである。   The present invention relates to a terminal block of a magnetic component such as a vehicle-mounted solenoid, and a mold apparatus for molding the terminal block, and more specifically, a terminal block of a magnetic component that supports a conductive terminal such as a clip terminal. And a mold apparatus for molding the terminal block.

車載用のソレノイド等の端子部としては、ボビンに巻回されたコイルを接続されるクリップ端子と、ボビンに取り付けられ、このクリップ端子の軸部を支持する軸固定部とからなるものが、従来より知られている（特許文献１を参照）。   As a terminal part of a vehicle-mounted solenoid or the like, a terminal composed of a clip terminal to which a coil wound around a bobbin is connected and a shaft fixing part that is attached to the bobbin and supports the shaft part of the clip terminal is conventionally known. More known (see Patent Document 1).

このようなクリップ端子は、通常、弾性を有する１対の把持爪により、対応する外部部品の導電性端子を把持するようになっており、これによりソレノイドコイルと外部部品の導電性端子とを電気的に接続することができる。
このような磁性部品の端子部を組み立てる際には、各クリップ端子の軸部を軸固定部に締結具により取り付けたり、軸部を軸固定部の凹部に嵌入させたりして固定するようになっている。 Such a clip terminal is usually configured to grip a conductive terminal of a corresponding external part by a pair of elastic gripping claws, thereby electrically connecting the solenoid coil and the conductive terminal of the external part. Can be connected.
When assembling the terminal portion of such a magnetic component, the shaft portion of each clip terminal is fixed to the shaft fixing portion with a fastener, or the shaft portion is fitted into the recess of the shaft fixing portion. ing.

しかし、このようにして各クリップ端子の軸部を軸固定部に締結具を用いて取り付けた場合には、端子部組立作業が煩雑となる。また、軸部を軸固定部の凹部に嵌入させて固定した場合には、把持爪に力が加わるとクリップ端子が軸固定部から抜けてしまう虞があり、また、軸部の軸固定部への挿入深さによってクリップ端子の高さ位置にバラつきが生じる虞がある。
このような問題を回避する方策として、クリップ端子を金型内に配置した状態で樹脂剤を金型内に注入するモールド成形（オーバーモールド成形、インサート成形；以下同じ）により端子部を一体的に形成する手法が考えられる。 However, when the shaft portion of each clip terminal is attached to the shaft fixing portion using a fastener in this way, the terminal portion assembling work becomes complicated. In addition, when the shaft portion is fitted and fixed in the recess of the shaft fixing portion, the clip terminal may come out of the shaft fixing portion when a force is applied to the gripping claw. There is a possibility that the height position of the clip terminal may vary depending on the insertion depth.
As a measure for avoiding such a problem, the terminal portion is integrally formed by molding (overmolding, insert molding; the same applies hereinafter) in which a resin agent is injected into the mold with the clip terminal arranged in the mold. A method of forming can be considered.

特開２０１４−４３９１５号公報JP 2014-43915 A

ところで、上述したようなモールド成形により端子部を形成する場合に、具体的に端子部をどのような形態とすれば、近時のニーズに対応し得るか、という点について検討することが肝要である。   By the way, when the terminal part is formed by molding as described above, it is important to examine the form of the terminal part specifically to meet the recent needs. is there.

例えば、図６の比較例１に示すように、端子台本体１１６の上面部１１６ｂと下側の把持爪１１８ａの下端面との距離が小さ過ぎると、特に、下側の把持爪１１８ａの下端面から軸部１１４に移行する移行部１１２ａにＲが設けられている場合には、成形によるバリが発生しやすくなり、寸法精度がより厳しくなり、また、金型の寿命が短くなる等の問題が発生し好ましくないので、端子台本体１１６の上面部１１６ｂと下側の把持爪１１８ａの下端面との距離を大きくとることが望まれる。   For example, as shown in Comparative Example 1 in FIG. 6, if the distance between the upper surface portion 116b of the terminal block body 116 and the lower end surface of the lower gripping claw 118a is too small, in particular, the lower end surface of the lower gripping claw 118a. When R is provided in the transition portion 112a that transitions from the shaft portion 114 to the shaft portion 114, burrs due to molding are likely to occur, dimensional accuracy becomes more severe, and the life of the mold is shortened. Since this is not desirable, it is desirable to increase the distance between the upper surface portion 116b of the terminal block body 116 and the lower end surface of the lower gripping claw 118a.

しかしながら、近年、特に車載用電子部品等については、コンパクト化に対する要請が強く、端子台本体２１６の上面部２１６ｂと下側の把持爪２１８ａの下端面との距離を長くすべく、クリップ端子２１２を端子台本体２１６から引き上げること（図７の比較例２を参照）は、現実的な解決手法とは言えない。   In recent years, however, there has been a strong demand for downsizing especially for in-vehicle electronic components, and in order to increase the distance between the upper surface 216b of the terminal base body 216 and the lower end surface of the lower gripping claw 218a, Pulling up from the terminal block body 216 (see Comparative Example 2 in FIG. 7) is not a realistic solution.

本発明は、このような事情に鑑みなされたもので、モールド成形により端子台を形成する場合において、バリが発生しにくく、寸法精度を緩和することができ、さらに、金型の短寿命化を避けることができるとともに、端子台全体として、コンパクト化の要求にも対応し得る磁性部品の端子台、およびこの端子台を成形する金型装置を提供することを目的とするものである。   The present invention has been made in view of such circumstances, and when forming a terminal block by molding, burrs are hardly generated, dimensional accuracy can be relaxed, and the life of the mold can be shortened. An object of the present invention is to provide a terminal block of a magnetic component that can be avoided and can meet the demand for compactness as a whole, and a mold apparatus for molding the terminal block.

上記課題を解決するため、本発明に係る、磁性部品の端子台および金型装置は、以下の特徴を備えている。
本発明に係る磁性部品の端子台は、
筒状ボビン周りに巻回されたコイルが接続され、相手側端子部との電気的接続を行う導電性端子部と、該筒状ボビンの上側鍔部に配設されて該導電性端子部の軸部を保持する軸固定部の周りにモールド成形により樹脂剤が注入されてなる端子台本体とを備えた磁性部品の端子台において、
該導電性端子部は、前記相手側端子部との接続構造を有する上部のコネクタ部が、下部の前記軸部と、直交する前方向に突出し全体としてＬ字形状に形成され、前記コネクタ部の下端面と前記軸部の前側平面部との角部にＲがつけられてなり、
前記導電性端子部と前記端子台本体とは、該端子台本体が、前記コネクタ部突出側の前面において前記端子台本体の上面部から一段低くなるように段差が設けられて、該段差の前記端子台本体の上面部に続く前面に、前記導電性端子部の前記軸部の角部に続く前記軸部の前側平面部が露出し、この露出した前側平面部の側面および背面が前記端子台本体の注入された前記樹脂剤で覆われて一体的に形成されてなることを特徴とするものである。 In order to solve the above problems, a terminal block and a mold apparatus for magnetic parts according to the present invention have the following features.
The terminal block of the magnetic component according to the present invention is
Is connected to coil wound around the tubular bobbin, a conductive terminal portion for electrically connecting the mating terminal portion, of being disposed above the flange portion of said cylindrical bobbin conductive terminal portion In a terminal block of a magnetic component comprising a terminal block body in which a resin agent is injected by molding around a shaft fixing portion that holds a shaft portion ,
The conductive terminal portion has an upper connector portion having a connection structure with the counterpart terminal portion, and protrudes in a front direction perpendicular to the lower shaft portion, and is formed in an L shape as a whole . R is attached to the corner portion between the lower end surface and the front plane portion of the shaft portion ,
The conductive terminal portion and the terminal block main body are provided with a step so that the terminal block main body is one step lower than the upper surface of the terminal block main body on the front surface of the connector portion protruding side , and the step The front plane portion of the shaft portion that continues to the corner portion of the shaft portion of the conductive terminal portion is exposed on the front surface that follows the upper surface portion of the terminal block main body, and the side surface and the back surface of the exposed front plane portion are the terminal block. The main body is integrally formed by being covered with the injected resin agent .

この場合において、前記軸部の前記露出する部分が、前記コネクタ部の下端面と前記軸部の表面とにより形成される角部、およびこの角部に続く平面部を含むことが好ましい。
また、前記コネクタ部は、それぞれ、互いに離れる方向に弾性変形して、対応する前記相手側端子部を互いの間に挟む一対の挟み片を備えていることが好ましい。 In this case, it is preferable that the exposed portion of the shaft portion includes a corner portion formed by a lower end surface of the connector portion and a surface of the shaft portion, and a flat surface portion following the corner portion.
Moreover, it is preferable that the said connector part is respectively provided with a pair of pinching piece which elastically deforms in the direction away from each other, and pinches | interposes the said other party terminal part between each other.

さらに、本発明に係る金型装置は、
請求項１に記載の磁性部品の端子台のモールド成形に用いる金型装置であって、
上型と下型が接離移動する金型入れ子部材と、該金型入れ子部材の移動方向と直交方向に移動するスライド金型部材とで構成され、その内部に、上部のコネクタ部にＲがつけられた角部を介して下部の軸部とが連結して全体としてＬ字形状に形成された導電性端子部を、その軸部を上側鍔部の軸固定部に挿入保持した筒状ボビンとともに収容し、前記導電性端子部の軸部を含む前記軸固定部の周りに樹脂剤を注入して前記導電性端子部と端子台本体とを一体的にモールド成形するものであり、
前記端子台本体は前記コネクタ部突出側の前面において上面部から一段低くなるように段差を有し、該段差の前記端子台本体の上面部に続く前面に、前記導電性端子部の前記軸部の角部に続く前側平面部が露出し、この露出した前側平面部の側面および背面を前記端子台本体の注入された前記樹脂剤で覆うように成形するについて、前記スライド金型部材は、前記端子台本体の前記段差形状に対応する形状の金型面を有し、さらにこの金型面は前記導電性端子部の前記角部から軸部の露出した前記前側平面部に当接する押圧面を備え、前記コネクタ部の突出方向と平行な方向に往復動するように構成されてなることを特徴とするものである。 Furthermore, the mold apparatus according to the present invention includes:
A mold apparatus used for molding a terminal block of a magnetic component according to claim 1,
It is composed of a mold nesting member in which the upper mold and the lower mold move toward and away from each other, and a slide mold member that moves in a direction orthogonal to the movement direction of the mold nesting member. A cylindrical bobbin in which a conductive terminal portion formed in an L shape as a whole is connected to a lower shaft portion through a corner portion attached thereto, and the shaft portion is inserted and held in the shaft fixing portion of the upper flange portion And injecting a resin agent around the shaft fixing portion including the shaft portion of the conductive terminal portion, and integrally molding the conductive terminal portion and the terminal block main body,
The terminal block main body has a step so as to be one step lower than the upper surface portion on the front surface of the connector portion protruding side, and the shaft portion of the conductive terminal portion on the front surface following the upper surface portion of the terminal block main body of the step. The front mold part that is exposed to the corner of the terminal block body is exposed, and the side surface and the back surface of the exposed front plane part are covered with the injected resin agent of the terminal block body. A mold surface having a shape corresponding to the stepped shape of the terminal block main body, and the mold surface further has a pressing surface that comes into contact with the exposed front flat portion of the shaft portion from the corner portion of the conductive terminal portion. Provided, and is configured to reciprocate in a direction parallel to the protruding direction of the connector portion .

本発明に係る磁性部品の端子台によれば、モールド成形により、端子台本体が、コネクタ部突出側において一段低くなるように段差が設けられ、これによって、導電性端子部の軸部の直線部分（正確には平面部分：以下同じ）が、コネクタ部突出側において、上下の長い範囲に亘って露出するように形成される。   According to the terminal block of the magnetic component according to the present invention, a step is provided by molding so that the terminal block main body is lowered by one step on the protruding side of the connector portion, whereby the linear portion of the shaft portion of the conductive terminal portion. (To be precise, the plane portion: the same applies hereinafter) is formed so as to be exposed over a long upper and lower range on the connector protruding side.

このように、導電性端子部の軸部の直線部分が、コネクタ部突出側において、上下の長い範囲に亘って露出するように構成されているので、モールド成形時に軸部の直線部分に対して、スライド金型の対応部分を確実に密着させながら押圧することが可能となる。すなわち、上下の長い範囲に亘って軸部の直線部分にスライド金型を押し当てることができるので、樹脂のバリ等が発生しにくくなり、管理する寸法精度を緩和することができ、さらに金型の短寿命化を避けることができる。   Thus, the linear portion of the shaft portion of the conductive terminal portion is configured to be exposed over a long vertical range on the connector portion protruding side. Thus, it is possible to press the corresponding part of the slide mold while making sure that the corresponding part is in close contact. In other words, since the slide mold can be pressed against the linear part of the shaft portion over a long vertical range, resin burrs are less likely to occur, the dimensional accuracy to be managed can be relaxed, and the mold The shortening of the life can be avoided.

しかも、コネクタ部突出側以外の方向においては、コネクタ部の下方把持部の下端部から前記軸部に移行する角部領域が問題となる虞がなく、軸部の露出は最小限で良いことから、導電性端子部の軸部を端子台本体から上方に引き上げなくともよいので、端子台全体として、コンパクト化の要求にも対応することができる。   In addition, in the direction other than the protruding side of the connector part, there is no possibility that the corner area that transitions from the lower end part of the lower holding part of the connector part to the shaft part becomes a problem, and the exposure of the shaft part is minimal. Since the shaft portion of the conductive terminal portion does not have to be lifted upward from the terminal block body, the terminal block as a whole can meet the demand for compactness.

なお、コネクタ部の下方把持部の下端部から前記軸部に移行する角部にＲがつけられているときには、この導電性端子部のＲ部を、金型の対応Ｒ部と、確実に一致させることが難しいので、上述したような本発明の効果は、より有効なものとなる。   In addition, when R is attached to the corner portion that transitions from the lower end portion of the lower holding portion of the connector portion to the shaft portion, the R portion of the conductive terminal portion is surely aligned with the corresponding R portion of the mold. Therefore, the effect of the present invention as described above becomes more effective.

また、本発明に係る金型によれば、少なくとも前記コネクタ部突出方向と平行な方向に往復動するスライド金型部材を用いて、上述したいずれかの磁性部品の端子台をモールド成形するように構成されているので、バリが発生しにくく、寸法精度をより緩和することが可能となり、また、金型の短寿命化を避けることができるとともに、端子台全体として、コンパクト化の要求にも対応することができ、製造時の労力およびコストの軽減を図ることができる。   Moreover, according to the metal mold | die which concerns on this invention, the terminal block of one of the above-mentioned magnetic components is molded using the slide metal mold | die member which reciprocates at least in the direction parallel to the said connector part protrusion direction. Because it is configured, burrs are unlikely to occur, dimensional accuracy can be further relaxed, and the life of the mold can be avoided, and the terminal block as a whole can meet the demand for compactness. It is possible to reduce the labor and cost during manufacturing.

本発明の実施例に係る磁性部品の端子台を示す前側から見た斜視図である。It is the perspective view seen from the front side which shows the terminal block of the magnetic component which concerns on the Example of this invention. 本発明の実施例に係る磁性部品の端子台を示す後側から見た斜視図である。It is the perspective view seen from the back side which shows the terminal block of the magnetic component which concerns on the Example of this invention. 本発明の実施例に係る磁性部品の端子台を示す側面図である。It is a side view which shows the terminal block of the magnetic component which concerns on the Example of this invention. 図１〜図３の端子台を成形する金型の一部を示す概略図（（Ａ）は比較例１、（Ｂ）は実施例）である。It is the schematic which shows a part of metal mold | die which shape | molds the terminal block of FIGS. 1-3 ((A) is the comparative example 1, (B) is an Example). 図４の金型を用いて成形された端子台の形状を示す概略図（（Ａ）は比較例１、（Ｂ）は実施例）である。It is the schematic ((A) is a comparative example 1, (B) is an Example) which shows the shape of the terminal block shape | molded using the metal mold | die of FIG. 比較例１に係る磁性部品の端子台を示す前側斜視図である。It is a front perspective view which shows the terminal block of the magnetic component which concerns on the comparative example 1. 比較例２に係る磁性部品の端子台を示す前側斜視図である。10 is a front perspective view showing a terminal block of a magnetic component according to Comparative Example 2. FIG.

以下、本発明に係る磁性部品の端子台および金型の実施例について、上記図面を参照しながら詳細に説明する。
なお、本実施例は、磁性部品として車載用ソレノイドを例に挙げて説明するものであり、この車載用ソレノイドに外部からの電力を供給するための端子部（図１〜３に示す端子台２０）に関するものである。具体的には、例えば、自動変速機の油圧制御を行うためのスプールバルブを駆動するリニアソレノイドに適用するものであるが、他の車載用ソレノイドに適用してもよいし、車載用ソレノイド以外の他の磁性部品に適用してもよい。 Hereinafter, embodiments of a terminal block and a mold for magnetic parts according to the present invention will be described in detail with reference to the drawings.
In the present embodiment, an in-vehicle solenoid will be described as an example of a magnetic component, and a terminal portion (terminal block 20 shown in FIGS. 1 to 3) for supplying electric power from the outside to the in-vehicle solenoid. ). Specifically, for example, the present invention is applied to a linear solenoid that drives a spool valve for performing hydraulic control of an automatic transmission. However, the present invention may be applied to other in-vehicle solenoids or other than in-vehicle solenoids. You may apply to another magnetic component.

〈端子台の構成〉
本発明の一実施例に係る磁性部品の端子台２０は、図１〜３に示すように、クリップ端子１２と端子台本体１６とからなる。
クリップ端子１２（導電性端子部）は、円筒状のボビン（コイルが巻回されたもの：以下同じ）１０の周りに巻回されたコイル１０ｃの端部が接続され（接続部は端子台本体１６内であり、図示されていない）、外部の所定の導体との電気的接続を行うコネクタ部１８と、端子台本体１６に挿入される軸部１４とを、互いに直交する方向に配し全体としてＬ字形状に一体形成されてなる。 <Terminal block configuration>
A terminal block 20 of a magnetic component according to an embodiment of the present invention includes a clip terminal 12 and a terminal block body 16 as shown in FIGS.
The clip terminal 12 (conductive terminal part) is connected to the end of a coil 10c wound around a cylindrical bobbin (coil wound: the same applies hereinafter) 10 (the connecting part is a terminal block body) 16, which is not shown), a connector portion 18 for electrical connection with a predetermined external conductor and a shaft portion 14 inserted into the terminal block body 16 are arranged in directions orthogonal to each other. Are integrally formed in an L shape.

また、コネクタ部１８の下側の把持爪１８ａの下端面から軸部１４表面へ移行する角部（移行部１２ａ）には、Ｒがつけられている。
この移行部１２ａにＲがつけられているのは、以下の理由による。すなわち、このようなクリップ端子１２はプレス成形により打ち抜かれて形成されるが、この打ち抜き作業時に、角部にＲをつけていないと、クリップ端子のプレス金型のＲ部にダレが発生し易くなることから、そのため、この角部（移行部１２ａ）にＲをつけ、なだらかなカーブを設けて、ピンポイントで力が加わらないように形成している。 Further, R is attached to the corner portion (the transition portion 12a) that transitions from the lower end surface of the lower gripping claw 18a of the connector portion 18 to the surface of the shaft portion 14.
The reason why the transition portion 12a is R is as follows. That is, such a clip terminal 12 is formed by punching by press molding. However, when the corner portion is not rounded during the punching operation, the clip terminal 12 is likely to sag in the R portion of the press die. Therefore, for this reason, the corner (the transition portion 12a) is rounded to provide a gentle curve so that no force is applied at a pinpoint.

なお、ボビン１０は、例えば車載用ソレノイドに係るコイル巻回用のボビンであって、中心部分に貫通孔である中央孔１０ａが設けられており、外部からコイル１０ｃに供給される電流に応じて、可動鉄芯がこの中央孔１０ａに吸い寄せられ、いわゆる、ｐｕｌｌソレノイドとして機能する。   The bobbin 10 is a bobbin for winding a coil related to, for example, a vehicle-mounted solenoid, and a central hole 10a, which is a through hole, is provided in the center portion, and according to the current supplied to the coil 10c from the outside. The movable iron core is sucked into the central hole 10a and functions as a so-called pull solenoid.

また、端子台本体１６は、上記コネクタ部１８の突出側（前側）において、上面部１６ｂから一段低くなるように段部１６ａ（段差）が設けられ、軸部１４の平面部１４ａが、コネクタ部１８の突出側（前側）において、上下の所定範囲に亘って露出するように形成されている。 Further, the terminal block body 16 is provided with a step portion 16a (step) on the projecting side (front side) of the connector portion 18 so as to be one step lower than the upper surface portion 16b, and the flat portion 14a of the shaft portion 14 is connected to the connector portion. 18 is formed so as to be exposed over a predetermined range on the upper and lower sides.

また、クリップ端子１２の各コネクタ部１８は、それぞれ、互いに離れる方向に弾性変形して、対応する所定の導体を互いの間に挟む一対の把持爪（挟み片）１８ａ、１８ｂを備えている。   Each connector portion 18 of the clip terminal 12 includes a pair of gripping claws (pinching pieces) 18a and 18b that are elastically deformed in directions away from each other and sandwich a corresponding predetermined conductor therebetween.

これら一対の把持爪１８ａ、１８ｂの先端部には、互いに対向する位置に凸部１８ｃが設けられており、コネクタ部１８の先端部において、対応する相手側端子を弾性力をもって容易に把持することができるようになっている。
ここで、対応する相手側端子とは、ボビン１０に電流を供給するための導電性端子であり、コネクタ部１８は、種々の形状の相手側端子と簡易かつ確実に結合することができる。
本実施例においては、このクリップ端子１２と端子台本体１６とが、モールド成形を用いて一体的に形成されるようになっている。 The tip portions of the pair of gripping claws 18a and 18b are provided with convex portions 18c at positions facing each other, and the corresponding mating terminal can be easily gripped with elastic force at the tip portion of the connector portion 18. Can be done.
Here, the corresponding mating terminal is a conductive terminal for supplying a current to the bobbin 10, and the connector portion 18 can be easily and reliably coupled to mating terminals of various shapes.
In the present embodiment, the clip terminal 12 and the terminal base body 16 are integrally formed by molding.

このように、本発明の実施例に係る端子台によれば、モールド成形を用いて形成されるので、従来のように、端子台本体１６とクリップ端子１２を締結したり、端子台本体１６内にクリップ端子１２を、嵌入する処理を行ったりして、クリップ端子１２を端子台本体１６に固定する処理が不要となり、また、両者の相対的な位置関係を確実に維持することが可能となる。これにより、迅速かつ高精度に端子台を作成することが可能となる。   As described above, according to the terminal block according to the embodiment of the present invention, since it is formed by molding, the terminal block body 16 and the clip terminal 12 are fastened or the terminal block body 16 in the terminal block body 16 as in the prior art. It is not necessary to perform the process of inserting the clip terminal 12 into the terminal block 16 and fix the clip terminal 12 to the terminal base body 16, and the relative positional relationship between the two can be reliably maintained. . This makes it possible to create a terminal block quickly and with high accuracy.

〈金型装置の構成〉
図４（Ｂ）に示すように、本発明の実施例に係る金型３０は、端子設置／樹脂注入部３３と、この端子設置／樹脂注入部３３の左右方向に往復動を行なうスライド金型３４ａと、金型入れ子（上型３４ｃが上下動するのに対して下型３４ｄは固定とされ、モールド成形時には、図示する位置において互いに当接した状態とされる。）３４ｂを備えている。 <Configuration of mold equipment>
As shown in FIG. 4B, a mold 30 according to an embodiment of the present invention includes a terminal installation / resin injection part 33 and a slide mold that reciprocates in the left-right direction of the terminal installation / resin injection part 33. 34a and a mold insert 34b (the upper mold 34c moves up and down while the lower mold 34d is fixed, and at the time of molding, they are in contact with each other at the illustrated positions) 34b.

金型３０内の端子設置／樹脂注入部３３において、クリップ端子１２の軸部１４の根元部１４ｂが、ボビン１０の上部に続く軸固定部３２に嵌入された状態で設置され、その周りに樹脂剤が注入され、端子設置／樹脂注入部３３までスライド金型３４ａがスライドしてきて、左右方向には固定とされていると金型入れ子３４ｂとの間に挟持するようにして、クリップ端子１２と端子台本体１６とのモールド成形が行なわれる。
なお、ボビン１０についての成形処理については図４（Ｂ）に明確に示されていないが、この端子台２０のモールド成形に先立って行われる。すなわち、下型に、コイル１０ｃが巻回されたボビン１０全体を収納し、この収納されたボビン１０の周りの外表面に樹脂剤がオーバーコートされるような処理が行われる。 In the terminal installation / resin injection part 33 in the mold 30, the base part 14 b of the shaft part 14 of the clip terminal 12 is installed in a state of being fitted into the shaft fixing part 32 that continues to the upper part of the bobbin 10, and the resin is surrounded around it. When the agent is injected and the slide mold 34a slides to the terminal installation / resin injection section 33 and is fixed in the left-right direction, the clip terminal 12 Molding with the terminal block main body 16 is performed.
The molding process for the bobbin 10 is not clearly shown in FIG. 4B, but is performed prior to molding of the terminal block 20. That is, the whole bobbin 10 around which the coil 10c is wound is stored in the lower mold, and a process is performed in which the outer surface around the stored bobbin 10 is overcoated with the resin agent.

〈本実施例の特徴構成〉
ところで、本実施例のようにモールド成形を用いて端子台本体１６とクリップ端子１２とを一体的にモールド成形すると、多くの利点を享受し得る。その一方、本実施例のように、コネクタ部１８の下側の把持爪１８ａの下端面から軸部１４表面へ移行する角部（移行部１２ａ）に、Ｒがつけられている場合において、図６の比較例１に示すように（図６に示す各部材は、対応する図１に示す部材の符号に１００を加えた符号を付して表されている。図４（Ａ）および図５（Ａ）において同じ。）、端子台本体１１６の上面部１１６ｂと下側の把持爪１１８ａの下端面との距離が小さ過ぎると、成形によってバリが発生しやすく、寸法精度がより厳しくなり、また、金型の寿命が短くなる等の問題が発生し好ましくない。 <Characteristic configuration of this embodiment>
By the way, if the terminal block main body 16 and the clip terminal 12 are integrally molded by using molding as in this embodiment, many advantages can be obtained. On the other hand, in the case where R is attached to the corner portion (the transition portion 12a) that transitions from the lower end surface of the lower gripping claw 18a on the lower side of the connector portion 18 to the surface of the shaft portion 14 as in the present embodiment, FIG. As shown in Comparative Example 1 of FIG. 6 (each member shown in FIG. 6 is represented by adding a reference numeral 100 to the reference numeral of the corresponding member shown in FIG. 1. FIG. 4 (A) and FIG. (Same in (A))) If the distance between the upper surface portion 116b of the terminal block body 116 and the lower end surface of the lower gripping claw 118a is too small, burrs are likely to occur due to molding, and the dimensional accuracy becomes more severe. Such a problem that the life of the mold is shortened is not preferable.

しかし、図７に示す比較例２のように（図７に示す各部材については、対応する図１に示す部材の符号に２００を加えた符号を付して表されている。）、端子台本体２１６の上面部２１６ｂと下側の把持爪２１８ａの下端面との距離を大きくするために、クリップ端子２１２全体を端子台本体２１６から引き上げた状態とすると、端子台２２０全体の背高が大きくなり、部品のコンパクト化の要請に反することになる。   However, as shown in Comparative Example 2 shown in FIG. 7 (each member shown in FIG. 7 is represented by a symbol obtained by adding 200 to the symbol of the corresponding member shown in FIG. 1). In order to increase the distance between the upper surface portion 216b of the main body 216 and the lower end surface of the lower gripping claw 218a, when the entire clip terminal 212 is pulled up from the terminal block main body 216, the overall height of the terminal block 220 is large. Thus, it is against the request for compact parts.

そこで、本実施例においては、図１〜図３に示すように、端子台本体１６の前側（コネクタ部１８が向く方向）が一段低くなる段部１６ａを設け、軸部１４の前側においてのみ、上下の所定長に亘って平面部１４ａが露出するように構成している。   Therefore, in the present embodiment, as shown in FIGS. 1 to 3, a step portion 16 a in which the front side (direction in which the connector portion 18 faces) of the terminal block main body 16 is lowered by one step is provided, and only on the front side of the shaft portion 14. The flat portion 14a is exposed over a predetermined upper and lower length.

すなわち、この前側には、下側の把持爪１８ａの下端面から軸部１４の表面へ移行するＲをつけた移行部１２ａのみならず、その移行部１２ａに続く平面部１４ａが露出する形状とされており、モールド成形時において、軸部１４が、移行部１２ａと平面部１４ａの広い範囲に亘ってスライド金型３４ａと接触し、この軸部１４を端子設置／樹脂注入部３３に注入された樹脂剤とともに押圧する。   That is, on the front side, not only the transition portion 12a with an R that transitions from the lower end surface of the lower gripping claw 18a to the surface of the shaft portion 14, but also a shape in which the flat portion 14a that follows the transition portion 12a is exposed. During molding, the shaft portion 14 contacts the slide mold 34a over a wide range of the transition portion 12a and the flat portion 14a, and this shaft portion 14 is injected into the terminal installation / resin injection portion 33. Press together with the resin agent.

また、軸部１４は、移行部１２ａのみならず、平面的に延びる平面部１４ａにおいても、スライド金型３４ａに密着して広い範囲で押圧されるため、移行部１２ａのみの狭い範囲で押圧していた比較例１、２と比べて、成形時のバリが発生しにくくなり、また、移行部１２ａのＲの部分ではなく平面部１４ａの平面を基準として金型を設計すればよくなるので、寸法精度を大幅に緩和することができる。   Further, since the shaft portion 14 is pressed in a wide range in close contact with the slide mold 34a not only in the transition portion 12a but also in the planar portion 14a extending in a plane, the shaft portion 14 is pressed in a narrow range of only the transition portion 12a. Compared to Comparative Examples 1 and 2, the burrs are less likely to occur at the time of molding, and it is only necessary to design the mold based on the plane of the flat portion 14a, not the R portion of the transition portion 12a. The accuracy can be greatly relaxed.

また、スライド金型３４ａが、軸部１４の、移行部１２ａと平面部１４ａの広い範囲に亘って突き当てられることになるので、移行部１２ａのみの狭い範囲で突き当てられていた比較例１、２のものと比べると、突き当たる際の押圧力が分散し、金型の長寿命化を図ることができる。   In addition, since the slide mold 34a is abutted over a wide range of the transition portion 12a and the flat portion 14a of the shaft portion 14, the first comparative example was abutted within a narrow range of only the transition portion 12a. Compared with two, the pressing force at the time of abutting is dispersed, and the life of the mold can be extended.

上述したことを、図４および図５を用いて説明する。比較例１を示す図４（Ａ）と、実施例を示す図４（Ｂ）とを比較すると、比較例１では端子設置／樹脂注入部１３３が単純な矩形状をなしているために、スライド金型１３４ａが、上方のＲつき角部（クリップ端子１１２の移行部１１２ａに対応する）のみでクリップ端子１１２に突き当てられる状態となっている。これに対して、本実施例においては、端子設置／樹脂注入部３３において、図中左上方の角部に段差が設けられるように切り欠かれた形状とされているために、スライド金型３４ａが、図中右上方のＲつき角部およびそれに続く先端平面部（クリップ端子１２の移行部１２ａおよび平面部１４ａに対応する）の広い領域でクリップ端子１２に突き当てられる状態となっている。   The above will be described with reference to FIGS. 4 and 5. FIG. 4A showing the comparative example 1 and FIG. 4B showing the embodiment, the terminal installation / resin injecting portion 133 has a simple rectangular shape in the comparative example 1, so that the slide The mold 134a is in a state of being abutted against the clip terminal 112 only at the upper corner with R (corresponding to the transition portion 112a of the clip terminal 112). On the other hand, in the present embodiment, the terminal installation / resin injection portion 33 is notched so that a step is provided at the upper left corner in the drawing, and therefore the slide mold 34a. However, it is in a state of being abutted against the clip terminal 12 in a wide area of the corner with R at the upper right in the drawing and the leading end flat part (corresponding to the transition part 12a and the flat part 14a of the clip terminal 12).

このため、スライド金型３４ａが、クリップ端子１２に突き当てられる領域の高さ（面積）は、両者において大きく異なる。   For this reason, the height (area) of the region where the slide mold 34a is abutted against the clip terminal 12 is greatly different between the two.

図５は、この両者の差を示すものである。比較例１を示す図５（Ａ）と、実施例を示す図５（Ｂ）とを比較すると、スライド金型３４ａ、１３４ａが、クリップ端子１２、１１２に突き当てられる領域の高さは、比較例１ではＰとなり、一方、実施例ではＱとなる。Ｐに対してＱは、例えば２倍程度となり（対比面積も同様）、また、本実施例においては、スライド金型３４ａが、軸部１４の平面部１４ａにおいても突き当てられているので、上述したように、バリが発生しにくい、寸法精度を緩和することができる、金型の長寿命化を図ることができる、等の種々の有用な効果を奏することができる。   FIG. 5 shows the difference between the two. Comparing FIG. 5A showing the comparative example 1 and FIG. 5B showing the example, the height of the region where the slide molds 34a and 134a are abutted against the clip terminals 12 and 112 is compared. In Example 1, it is P, while in the example, it is Q. For example, Q is about twice as large as P (the comparison area is the same), and in the present embodiment, the slide mold 34a is also abutted against the flat surface portion 14a of the shaft portion 14. As described above, various useful effects can be obtained, such as burrs are hardly generated, dimensional accuracy can be relaxed, and the life of the mold can be extended.

また、上述した前側以外の３方向においては、上述したような段部１６ａは設けられておらず、ボビン１０の上面部１０ａから下側の把持爪１８ａの下端面までの距離は、比較例１と同様とされているので、前述した図７に示す比較例２のように、端子台２０全体としてコンパクト化の要請に反する虞もない。   Further, in the three directions other than the front side described above, the stepped portion 16a as described above is not provided, and the distance from the upper surface portion 10a of the bobbin 10 to the lower end surface of the lower gripping claw 18a is the same as that in Comparative Example 1. Therefore, unlike the comparative example 2 shown in FIG. 7 described above, there is no possibility that the terminal block 20 as a whole is contrary to the demand for downsizing.

〈変更態様〉
以上、本発明の実施例について説明したが、本発明は上述の実施例に態様が限定されるものではなく、種々に態様を変更することが可能である。 <Modification>
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made.

例えば、上述の実施例においては、導電性端子としてクリップ端子を用いているが、導電性端子としてはこれに限られるものではなく、例えば、コイルの絡げ端子等の他の入出力端子を用いるようにしてもよい。   For example, in the above-described embodiment, the clip terminal is used as the conductive terminal. However, the conductive terminal is not limited to this, and other input / output terminals such as a coiled terminal are used. You may do it.

また、上述の実施例においては、クリップ端子のコネクタ部形状として把持爪を２つ対向させたものを用いているが、このコネクタ部形状としては、軸部に対して直交する方向に延び、このコネクタ部の下端面と軸部とが略直交して角部が形成されるような形状を構成するものであれば、種々の形状をとり得る。また、この角部にＲがついている場合に特に有効である。
Further, in the above-described embodiment, the clip terminal connector part shape having two gripping claws opposed to each other is used, but this connector part shape extends in a direction orthogonal to the shaft part, Various shapes can be used as long as the lower end surface of the connector portion and the shaft portion are configured to have a shape in which corner portions are formed substantially orthogonal to each other. Further, it is particularly effective when marked with R in this corner.

また、コネクタ部の数としては、上述した実施例に示すように２つに限られるものではなく、１つであってもよいし、３つ以上の数であってもよい。
また、端子台本体の形状としても上述した実施例に記載のものに限られるものではなく、要は、導電性端子の前側（コネクタ部の突出する方向）に段差が設けられて、この段差によって、導電性端子の前側部分が上下に大きく露出するように構成されるものであればよい。例えば、段差は端子台の幅方向の広い範囲に亘って設けずともよく、導電性端子の軸部の対応部分をスリット状に狭い幅で切り欠くようにしてこの軸部を上下方向に露出させるようにしてもよい。 Further, the number of connector portions is not limited to two as shown in the above-described embodiments, and may be one or three or more.
Further, the shape of the terminal block main body is not limited to the one described in the above-described embodiment. In short, a step is provided on the front side of the conductive terminal (direction in which the connector portion protrudes). Any device may be used as long as the front side portion of the conductive terminal is largely exposed in the vertical direction. For example, the step does not have to be provided over a wide range in the width direction of the terminal block, and the corresponding portion of the shaft portion of the conductive terminal is notched with a narrow width in a slit shape to expose the shaft portion in the vertical direction. You may do it.

また、本発明の金型としても、上記実施例のものに限られるものではなく、種々の態様の変更が可能である。例えば、上述した端子台の変更態様に対応させるように、端子台の軸部対応部分をスリット状に切り欠いてこの軸部を上下方向に露出させるように成形し得るスライド金型形状を備えるようにしてもよい。   Also, the mold of the present invention is not limited to the above-described embodiment, and various modifications can be made. For example, a slide mold shape that can be molded so as to expose the shaft portion in the vertical direction by notching the shaft portion corresponding portion of the terminal block in a slit shape so as to correspond to the above-described change mode of the terminal block is provided. It may be.

１０、１１０、２１０ ボビン（巻回コイルつき）
１０ａ、１１０ａ、２１０ａ 中央孔
１０ｂ、１１０ｂ、２１０ｂ 鍔部
１０ｃ、１１０ｃ、２１０ｃ コイル
１２、１１２、２１２ クリップ端子
１２ａ、１１２ａ、２１２ａ 移行部
１４、１１４、２１４ 軸部
１４ａ 平面部
１４ｂ、 １１４ｂ 根元部
１６、１１６、２１６ 端子台本体
１６ａ 段部
１６ｂ、１１６ｂ、２１６ｂ 上面部
１８、１１８、２１８ コネクタ部（導電性端子部）
１８ａ、１８ｂ、１１８ａ、１１８ｂ、２１８ａ、２１８ｂ 把持爪
１８ｃ、１１８ｃ、２１８ｃ 凸部
２０、１２０、２２０ 端子台
３０、１３０ 金型
３２、１３２ 軸固定部
３３、１３３ 端子設置／樹脂注入部
３４ａ、１３４ａ スライド金型
３４ｂ、１３４ｂ 金型入れ子
３４ｃ、１３４ｃ 上型
３４ｄ、１３４ｄ 下型 10, 110, 210 Bobbins (with winding coil)
10a, 110a, 210a Central hole 10b, 110b, 210b Hook 10c, 110c, 210c Coil 12, 112, 212 Clip terminal 12a, 112a, 212a Transition part 14, 114, 214 Shaft part 14a Plane part 14b, 114b Root part 16 , 116, 216 Terminal block main body 16a Step portion 16b, 116b, 216b Upper surface portion 18, 118, 218 Connector portion (conductive terminal portion)
18a, 18b, 118a, 118b, 218a, 218b Holding claws 18c, 118c, 218c Convex parts 20, 120, 220 Terminal block 30, 130 Mold 32, 132 Shaft fixing part 33, 133 Terminal installation / resin injection part 34a, 134a Slide mold 34b, 134b Mold insert 34c, 134c Upper mold 34d, 134d Lower mold

Claims (4)

筒状ボビン周りに巻回されたコイルが接続され、相手側端子部との電気的接続を行う導電性端子部と、該筒状ボビンの上側鍔部に配設されて該導電性端子部の軸部を保持する軸固定部の周りにモールド成形により樹脂剤が注入されてなる端子台本体とを備えた磁性部品の端子台において、
該導電性端子部は、前記相手側端子部との接続構造を有する上部のコネクタ部が、下部の前記軸部と、直交する前方向に突出し全体としてＬ字形状に形成され、前記コネクタ部の下端面と前記軸部の前側平面部との角部にＲがつけられてなり、
前記導電性端子部と前記端子台本体とは、該端子台本体が、前記コネクタ部突出側の前面において前記端子台本体の上面部から一段低くなるように段差が設けられて、該段差の前記端子台本体の上面部に続く前面に、前記導電性端子部の前記軸部の角部に続く前記軸部の前側平面部が露出し、この露出した前側平面部の側面および背面が前記端子台本体の注入された前記樹脂剤で覆われて一体的に形成されてなることを特徴とする磁性部品の端子台。 Is connected to coil wound around the tubular bobbin, a conductive terminal portion for electrically connecting the mating terminal portion, of being disposed above the flange portion of said cylindrical bobbin conductive terminal portion In a terminal block of a magnetic component comprising a terminal block body in which a resin agent is injected by molding around a shaft fixing portion that holds a shaft portion ,
The conductive terminal portion has an upper connector portion having a connection structure with the counterpart terminal portion, and protrudes in a front direction perpendicular to the lower shaft portion, and is formed in an L shape as a whole . R is attached to the corner portion between the lower end surface and the front plane portion of the shaft portion ,
The conductive terminal portion and the terminal block main body are provided with a step so that the terminal block main body is one step lower than the upper surface of the terminal block main body on the front surface of the connector portion protruding side , and the step The front plane portion of the shaft portion that continues to the corner portion of the shaft portion of the conductive terminal portion is exposed on the front surface that follows the upper surface portion of the terminal block main body, and the side surface and the back surface of the exposed front plane portion are the terminal block. A terminal block for a magnetic part, wherein the terminal block is integrally formed by being covered with the resin agent injected into the main body . 前記軸部の前記露出する部分が、前記コネクタ部の下端面と前記軸部の表面とにより形成される角部、およびこの角部に続く平面部を含むことを特徴とする請求項１に記載の磁性部品の端子台。   2. The exposed portion of the shaft portion includes a corner portion formed by a lower end surface of the connector portion and a surface of the shaft portion, and a flat portion following the corner portion. Magnetic component terminal block. 前記コネクタ部は、それぞれ、互いに離れる方向に弾性変形して、対応する相手側端子部を互いの間に挟む一対の挟み片を備えていることを特徴とする請求項１または２に記載の磁性部品の端子台。 3. The magnetic device according to claim 1, wherein each of the connector portions includes a pair of pinching pieces that are elastically deformed in directions away from each other and pinch corresponding mating terminal portions therebetween. Terminal block for parts. 請求項１に記載の磁性部品の端子台のモールド成形に用いる金型装置であって、
上型と下型が接離移動する金型入れ子部材と、該金型入れ子部材の移動方向と直交方向に移動するスライド金型部材とで構成され、その内部に、上部のコネクタ部にＲがつけられた角部を介して下部の軸部とが連結して全体としてＬ字形状に形成された導電性端子部を、その軸部を上側鍔部の軸固定部に挿入保持した筒状ボビンとともに収容し、前記導電性端子部の軸部を含む前記軸固定部の周りに樹脂剤を注入して前記導電性端子部と端子台本体とを一体的にモールド成形するものであり、
前記端子台本体は前記コネクタ部突出側の前面において上面部から一段低くなるように段差を有し、該段差の前記端子台本体の上面部に続く前面に、前記導電性端子部の前記軸部の角部に続く前側平面部が露出し、この露出した前側平面部の側面および背面を前記端子台本体の注入された前記樹脂剤で覆うように成形するについて、前記スライド金型部材は、前記端子台本体の前記段差形状に対応する形状の金型面を有し、さらにこの金型面は前記導電性端子部の前記角部から軸部の露出した前記前側平面部に当接する押圧面を備え、前記コネクタ部の突出方向と平行な方向に往復動することを特徴とする金型装置。 A mold apparatus used for molding a terminal block of a magnetic component according to claim 1,
It is composed of a mold nesting member in which the upper mold and the lower mold move toward and away from each other, and a slide mold member that moves in a direction orthogonal to the movement direction of the mold nesting member. A cylindrical bobbin in which a conductive terminal portion formed in an L shape as a whole is connected to a lower shaft portion through a corner portion attached thereto, and the shaft portion is inserted and held in the shaft fixing portion of the upper flange portion And injecting a resin agent around the shaft fixing portion including the shaft portion of the conductive terminal portion, and integrally molding the conductive terminal portion and the terminal block main body,
The terminal block main body has a step so as to be one step lower than the upper surface portion on the front surface of the connector portion protruding side, and the shaft portion of the conductive terminal portion on the front surface following the upper surface portion of the terminal block main body of the step. The front mold part that is exposed to the corner of the terminal block body is exposed, and the side surface and the back surface of the exposed front plane part are covered with the injected resin agent of the terminal block body. A mold surface having a shape corresponding to the stepped shape of the terminal block main body, and the mold surface further has a pressing surface that comes into contact with the exposed front flat portion of the shaft portion from the corner portion of the conductive terminal portion. And a die device that reciprocates in a direction parallel to a protruding direction of the connector portion .
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