JP2010266367A

JP2010266367A - Method for manufacturing sensor with terminal

Info

Publication number: JP2010266367A
Application number: JP2009118791A
Authority: JP
Inventors: Michiyasu Watabe; 道泰渡部; Katsuya Okamoto; 克也岡本; Hideki Okamoto; 英樹岡本
Original assignee: Mitsubishi Cable Industries Ltd; Mitsubishi Materials Corp
Current assignee: Mitsubishi Cable Industries Ltd; Mitsubishi Materials Corp
Priority date: 2009-05-15
Filing date: 2009-05-15
Publication date: 2010-11-25
Anticipated expiration: 2029-05-15
Also published as: JP5280935B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a sensor with a terminal capable of holding and positioning easily and surely a sensing element, and fixing the sensing element so that a pitch dimension between two terminal members becomes a prescribed value. <P>SOLUTION: This method includes: a punching process for forming by being punched from a plated metal thin plate material, a comb-shaped intermediate 60 comprising a plurality of parallel narrow belt bodies 1, 1 and a connection piece part 20 for connecting sequentially each middle part in the longitudinal direction N of the narrow belt body 1, and including tilted tip parts 11, 11 tilted so that each tip of a set of the narrow belt bodies 1, 1 is brought close mutually by using adjacent narrow belt bodies 1, 1 as one set relative to each pair; a crossed clamping part forming process for bending, thereafter, the connection piece part 20 between the set of the narrow belt bodies 1, 1, and allowing each tilted tip part 11, 11 of the set of the narrow belt bodies 1, 1 to cross each other, to thereby form a clamping part 50 for holding the sensing element 2; and a cutting process for cutting and removing the connection piece part 20 after holding the sensing element 2 by the clamping part 50, to thereby form a pair of terminal members comprising the set of the narrow belt bodies 1, 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、端子付センサの製造方法に関する。 The present invention relates to a method for manufacturing a sensor with a terminal.

従来の端子付センサの製造方法としては、プレス加工によって形成した２本の独立した端子部材の先端に、サーミスタ等の感知素子を挾んで、半田で固着させる方法が知られている（特許文献１参照）。 As a conventional method for manufacturing a sensor with a terminal, there is known a method in which a sensing element such as a thermistor is sandwiched at the tips of two independent terminal members formed by pressing and fixed with solder (Patent Document 1). reference).

特開２０００−３１０５７１号公報JP 2000-310571 A

しかし、独立した２本の端子部材の先端に感知素子を挾持状に保持して半田にて固着する作業は、正確な相互の位置決め、及び、保持が難しく、特別な治具を要し、能率良く行うことが至難であった。 However, the work of holding the sensing element at the tip of two independent terminal members and fixing them with solder is difficult to accurately position and hold each other, requires a special jig, and is efficient. It was very difficult to do well.

そこで、本発明は、感知素子を、容易かつ正確に、能率良く、端子部材の先端に固着できる製造方法の提供を目的とする。特に、端子部材を、金属薄板素材から折り曲げや打抜き等のプレス工程にて作製する流れ（工程）の中で、感知素子の固着を一連の工程として行い得るようにして、能率アップを図った製造方法の提供を目的とする。 Therefore, an object of the present invention is to provide a manufacturing method capable of fixing a sensing element to a tip of a terminal member easily, accurately and efficiently. In particular, in the flow (process) in which the terminal member is manufactured from a metal thin plate material in a pressing process such as bending or punching, the sensing element can be fixed as a series of processes to improve efficiency. The purpose is to provide a method.

上記目的を達成するために、本発明の端子付センサの製造方法は、複数本の平行な細帯体と、該細帯体の長手方向の中途部を順次連結した連結片部と、から成る櫛型中間体を、作製し、上記連結片部の切断によって上記細帯体を分離させる前に、感知素子を、隣り合う細帯体の先端に挾持状に固着する方法である。
また、複数本の平行な細帯体と、該細帯体の長手方向の中途部を順次連結する連結片部と、から成ると共に、隣り合う上記細帯体を一対毎に一組として該一組の細帯体の先端を相互に接近するように傾斜した傾斜先端部を備えた櫛型中間体を、めっき処理した金属薄板素材から作製する基本プレス工程と、次に、上記一組の細帯体の間の上記連結片部を折り曲げて、該一組の細帯体のピッチ寸法を減少させることによって上記傾斜先端部を交差させて、感知素子の保持用の挾持部を形成する交差状挾持部形成工程と、上記感知素子を上記挾持部に半田又は導電性接着剤で固着する素子固着工程と、上記素子固着工程の後に、上記連結片部を切断除去して上記一組の細帯体から成る一対の端子部材を形成する切断工程と、を具備している方法である。 In order to achieve the above object, a method of manufacturing a sensor with a terminal according to the present invention comprises a plurality of parallel narrow strips and a connecting piece portion in which midway portions in the longitudinal direction of the strips are sequentially connected. This is a method in which a comb-shaped intermediate body is manufactured, and the sensing element is fixed in a clamped manner to the tip of an adjacent narrow strip before the strip is separated by cutting the connecting piece.
In addition, it is composed of a plurality of parallel strips and a connecting piece for sequentially connecting mid-longitudinal portions of the strips, and the adjacent strips are paired as a pair. A basic pressing step for producing a comb-shaped intermediate body having an inclined tip portion inclined so that the tips of a set of strips are close to each other from a plated metal sheet material; The connecting piece portion between the belts is bent to reduce the pitch dimension of the pair of strips, thereby crossing the inclined tip portions to form a gripping portion for holding the sensing element. A holding part forming step, an element fixing step for fixing the sensing element to the holding part with solder or a conductive adhesive, and after the element fixing step, the connecting piece portion is cut and removed to form the set of strips. A cutting step of forming a pair of terminal members made of a body, That.

また、上記一組の細帯体の先端を相互に接近するように傾斜した傾斜先端部が、打抜加工によって形成される。
あるいは、上記一組の細帯体の先端を相互に接近するように傾斜した傾斜先端部は、打抜加工によって予め形成した平行先端部の途中を、斜め折り畳み加工によって形成される。 In addition, an inclined tip portion that is inclined so that the tips of the pair of narrow strips are close to each other is formed by punching.
Alternatively, the inclined tip portion that is inclined so that the tips of the pair of strips approach each other is formed by oblique folding processing in the middle of the parallel tip portion that has been formed in advance by punching.

また、上記基本プレス工程が、上記細帯体の基端部を、該細帯体の上記長手方向に沿った折曲げ線で両側から内側方向に折り畳んで、４層構造の横断面略四角形に形成する折り畳み工程を具備する方法である。
また、上記基本プレス工程が、上記細帯体の中間部を、素材厚さ寸法のままで塑性加工して補強部を形成する補強部形成工程を具備する方法である。
また、上記感知素子と上記挾持部、及び、上記端子部材の中間部に射出成形樹脂にて一体被覆して、ボディを形成する射出成形工程を具備する方法である。
また、上記感知素子は感温素子から成る。 In the basic pressing step, the base end portion of the strip is folded inward from both sides along a fold line along the longitudinal direction of the strip to form a substantially quadrangular cross section having a four-layer structure. It is the method which comprises the folding process to form.
Moreover, the said basic press process is a method which comprises the reinforcement part formation process which forms the reinforcement part by plastically processing the intermediate part of the said strip | belt body with a raw material thickness dimension.
Further, it is a method comprising an injection molding step of forming a body by integrally covering the sensing element, the holding part, and an intermediate part of the terminal member with an injection molding resin.
The sensing element is a temperature sensitive element.

本発明に係る端子付センサの製造方法によれば、感知素子の固着を、金属薄板素材から多数本の端子部材をプレス加工する一連の工程の中で、行って、感知素子を正確に、極めて、能率良く、固着できる。即ち、一連の打ち抜き・折り曲げ工程と同じ流れの中で、感知素子の半田付け等による固着を行うことができ、製造の能率が著しく改善され、製品の品質も向上する。 According to the method for manufacturing a sensor with a terminal according to the present invention, the sensing element is fixed in a series of steps of pressing a large number of terminal members from a metal thin plate material, and the sensing element is accurately and extremely Can be fixed efficiently. That is, in the same flow as the series of punching / bending processes, the sensing element can be fixed by soldering or the like, the manufacturing efficiency is remarkably improved, and the product quality is improved.

本発明の第１の実施の形態の工程を説明する図であり、（ａ）は平面図であり、（ｂ）は（ａ）のＸ−Ｘ断面図である。It is a figure explaining the process of the 1st Embodiment of this invention, (a) is a top view, (b) is XX sectional drawing of (a). 本発明の第１の実施の形態の工程を説明する図であり、（ａ）は平面図であり、（ｂ）は（ａ）のＹ−Ｙ断面図である。It is a figure explaining the process of the 1st Embodiment of this invention, (a) is a top view, (b) is YY sectional drawing of (a). 本発明の第１の実施の形態の工程を説明する図であり、（ａ）は平面図であり、（ｂ）は（ａ）のＺ−Ｚ断面図である。It is a figure explaining the process of the 1st Embodiment of this invention, (a) is a top view, (b) is ZZ sectional drawing of (a). 端子付センサの一例の断面図である。It is sectional drawing of an example of a sensor with a terminal. 本発明の第２の実施の形態の工程を説明する平面図である。It is a top view explaining the process of the 2nd Embodiment of this invention. 本発明の第２の実施の形態の工程を説明する図であって、（ａ）は平面図、（ｂ）は要部拡大図である。It is a figure explaining the process of the 2nd Embodiment of this invention, Comprising: (a) is a top view, (b) is a principal part enlarged view. 第１の実施の形態の主要な工程の一例を示す説明図である。It is explanatory drawing which shows an example of the main processes of 1st Embodiment. 第１の実施の形態の主要な工程の他例を示す説明図である。It is explanatory drawing which shows the other examples of the main processes of 1st Embodiment. 基端部と中間部の形成工程を説明する平面図である。It is a top view explaining the formation process of a base end part and an intermediate part. 図９の拡大断面図であり、（ａ）は図９のＡ−Ａ断面図、（ｂ）は図９のＢ−Ｂ断面図、（ｃ）は図９のＣ−Ｃ断面図、（ｄ）は図９のＤ−Ｄ断面図、（ｅ）は図９のＥ−Ｅ断面図、である。9 is an enlarged cross-sectional view of FIG. 9, (a) is a cross-sectional view taken along line AA in FIG. 9, (b) is a cross-sectional view taken along line BB in FIG. 9, (c) is a cross-sectional view taken along CC in FIG. ) Is a DD cross-sectional view of FIG. 9, and (e) is an EE cross-sectional view of FIG. 基端部の形成工程を説明する要部拡大断面図である。It is a principal part expanded sectional view explaining the formation process of a base end part.

以下、図示の実施の形態に基づき本発明を詳説する。
本発明は、図４に例示するように、金属薄板から成る一対の端子部材１’，１’と、小
ブロック型の感知素子２と、樹脂製のボディ３と、を有する端子付センサを、製造する方法である。感知素子２は、例えばサーミスタ素子等の感温素子とする。 Hereinafter, the present invention will be described in detail based on the illustrated embodiment.
In the present invention, as illustrated in FIG. 4, a sensor with a terminal having a pair of terminal members 1 ′, 1 ′ made of a thin metal plate, a small block type sensing element 2, and a resin body 3, It is a manufacturing method. The sensing element 2 is a temperature sensitive element such as a thermistor element.

本発明の第１の実施の形態について説明すると、図１と図８（ａ）と図９に示すように、めっき処理された金属薄板素材から、（端子部材１’を作成するための）細帯体１と、複数本の平行な細帯体１，１の長手方向Ｎの中途部を順次連結する連結片部20と、から成る櫛型中間体60を打ち抜き加工及び折り曲げ加工等の基本プレス工程にて作製する。なお、中間体60は細帯体１の幅方向Ｗに連結片部20によって連結された「柵型」であると言うこともできる。そして、上記基本プレス工程の一部に含まれた上記打ち抜き加工によって、図１と図８（ａ）と図９に示すように、多数の細帯体１…に於て、一対毎を一組として、先端が相互に接近するように傾斜した先端部11，11を形成しておく。つまり、一対毎に一組として該一組の細帯体１，１の先端に（「ハの字」状に）傾斜先端部11，11を形成する。長手方向Ｎに対して、傾斜先端部11の傾斜角度θを、30°〜60°の範囲、好ましくは、40°〜50°の範囲で、設定する。さらに、上記基本プレス工程に於て、後述する図９と図10、及び、図11に示すような補強部30及び基端部13あるいは貫孔19等の折り曲げ加工（工程），打ち抜き加工（工程）が多数行われる。なお、図１〜図８では、後述の補強部30（壁部30Ａ，凸条部30Ｂ），基端部13，貫孔19等は図示省略している。 The first embodiment of the present invention will be described. As shown in FIG. 1, FIG. 8 (a), and FIG. 9, a thin metal plate material (for producing the terminal member 1 ′) is plated from the plated metal sheet material. Basic press for punching and bending a comb-shaped intermediate body 60 comprising a band 1 and a connecting piece 20 that sequentially connects the middle portions of the longitudinal direction N of a plurality of parallel strips 1 and 1 Produced in a process. It can be said that the intermediate body 60 is a “fence type” connected by the connecting piece 20 in the width direction W of the narrow band 1. Then, by the punching process included in a part of the basic press step, as shown in FIGS. 1, 8 (a), and 9, a pair of pairs is formed in a large number of strips 1. As described above, tip portions 11 and 11 that are inclined so that the tips approach each other are formed. That is, the inclined tip portions 11 and 11 are formed at the tip of the pair of narrow strips 1 and 1 (in a “C” shape) as a pair for each pair. With respect to the longitudinal direction N, the inclination angle θ of the inclined tip portion 11 is set in the range of 30 ° to 60 °, preferably in the range of 40 ° to 50 °. Further, in the basic pressing step, the bending process (process) and the punching process (process) of the reinforcing portion 30 and the base end portion 13 or the through hole 19 as shown in FIGS. 9 and 10 and FIG. 11 described later. ) Is performed many times. 1 to 8, a reinforcing portion 30 (wall portion 30A, protruding line portion 30B), a base end portion 13, a through hole 19 and the like which will be described later are not shown.

また、上記基本プレス工程に於て打ち抜き加工，折り曲げ加工等にて作製された櫛型（柵型）中間体60の隣り合う細帯体１，１のピッチ寸法Ｐは以下のように決定される。即ち、上記基本プレス加工工程を行う際に、例えば、図11に示すような折り曲げ加工（４枚折り）では、同図（ａ）のような幅寸法が必要であり、また、打ち抜きや折り曲げの金型や刃の干渉を避けるための余裕代も必要であり、しかも、図１（ａ）と、図７（ａ）や図８（ａ）及び図９のように、少なくとも微小ギャップＧを設けて打ち抜き加工する必要があるため、最小限必要な寸法としての打ち抜きピッチ寸法Ｐ１とする。
ここで、めっき処理された金属製薄板素材を具体的に説明すると、表裏面が錫（Ｓｎ）等でめっき処理された銅板であり、素材厚さ寸法が０．０５ｍｍ以上０．２５ｍｍ以下のものである。 Further, the pitch dimension P of the adjacent narrow strips 1 and 1 of the comb-shaped (fence-shaped) intermediate body 60 produced by punching or bending in the basic pressing step is determined as follows. . That is, when performing the above basic pressing process, for example, in the bending process (four sheets folding) as shown in FIG. 11, a width dimension as shown in FIG. A margin for avoiding interference between the mold and the blade is also required, and at least a minute gap G is provided as shown in FIG. 1 (a), FIG. 7 (a), FIG. 8 (a) and FIG. Therefore, the punching pitch dimension P1 is set as a minimum necessary dimension.
Here, the plated metal thin plate material will be specifically described. The front and back surfaces are copper plates plated with tin (Sn) or the like, and the thickness of the material is 0.05 mm or more and 0.25 mm or less. It is.

次に、図２に示すように、一組の細帯体１，１の間の連結片部20を、長手方向Ｎに沿った折り曲げ線で、折り曲げ加工する。そして、一組の細帯体１，１のピッチ寸法Ｐを打ち抜きピッチ寸法Ｐ１よりも小さいピッチ寸法Ｐ２となるようピッチ寸法Ｐを減少させることによって、一組の傾斜先端部11，11を平面視でＸ状に交差させて（感知素子２の保持用の）挾持部50を形成する。この連結片部20を折り曲げ加工する工程を交差状挾持部形成工程と呼ぶ。 Next, as shown in FIG. 2, the connecting piece 20 between the pair of strips 1, 1 is bent along a bending line along the longitudinal direction N. The pair of slanted tip portions 11 and 11 are viewed in plan view by reducing the pitch dimension P so that the pitch dimension P of the pair of strips 1 and 1 becomes a pitch dimension P2 smaller than the punching pitch dimension P1. The holding portion 50 (for holding the sensing element 2) is formed by crossing in the X shape. The process of bending the connecting piece 20 is called a cross-shaped holding part forming process.

ところで、上記交差状挾持部形成工程とは別に素子固着工程を本発明は具備している。即ち、感知素子２を、図２に示す如く、挾持部50に半田あるいは導電性接着剤によって固着する素子固着工程を具備する。
一例としては、図１から図７（ａ）に示すように、一対の接近対向する傾斜先端部11，11の内の一方に、感知素子２を載置すると共に、半田付けあるいは導電性接着剤による接着によって、固着し、その後、上記交差状挾持部形成工程を行って、図７（ａ）から図７（ｂ）（ｃ）に示すように、感知素子２を挾持部50に保持し、次に、半田付け又は導電性接着剤による接着にて、他方の傾斜先端部11に固着する。図７（ｂ）の矢印Ｈは、一方の先端部11に予め載置して固着しておいた感知素子２の上に、他方の先端部11を重ねる方向を示す。ところで、この図７（ａ）から図７（ｂ）のように、矢印Ｈ方向に重ね合わせる際に、感知素子２の載置していない側の傾斜先端部11を、上に（紙面上、紙の裏から表に）向けて、変形させ、少なくとも、感知素子２を挟み込めるだけの隙間を形成して、一組の傾斜先端部11，11をＸ状に交差させて感知素子２を挾持する。このように、素子固着工程と交差状挾持部形成工程とが混り合って（混在しつつ）行われる場合を、図７では例示した。
他例としては、図１及び図８（ａ）から、図８（ｂ）に示したように、連結片部20を折り曲げ加工して、元のピッチ寸法Ｐ１を小さなピッチ寸法Ｐ２に減少させることで、一対の傾斜先端部11，11を交差させて、挾持部50を予め形成する。即ち、まず交差状挾持部形成工程を完了する。その後、図８（ｃ）に矢印Ｊのように感知素子２を、交差状挾持部50へ、（図外の開脚治具等によって僅かに開脚させつつ、又は、予め図８（ｂ）の状態になるまでに傾斜先端部11，11を上下に（開脚）変形させて、感知素子２を挟み込めるだけの隙間を形成させておいて）差込んで、保持させて、図８（ｄ）に示すような保持状態下で、半田付け又は上記接着によって、感知素子２を固着する。このように、図８では、交差状挾持部形成工程を完了して後に、素子固着工程を行う場合を図８に例示した。なお、感知素子２の差込方向（矢印Ｊ）は、図８（ｃ）に限らず、同図の左右側方向や、矢印Ｊとは逆に基部から長手方向Ｎの先端に行っても良い。 By the way, the present invention includes an element fixing step separately from the cross-shaped holding portion forming step. That is, as shown in FIG. 2, the sensor element 2 includes an element fixing step for fixing the sensing element 2 to the holding portion 50 with solder or a conductive adhesive.
As an example, as shown in FIGS. 1 to 7A, the sensing element 2 is placed on one of a pair of inclined tip portions 11 and 11 that face each other and are soldered or conductive adhesive. Then, the above-mentioned cross-shaped holding part forming step is performed to hold the sensing element 2 on the holding part 50 as shown in FIGS. 7 (a) to 7 (b) (c), Next, it is fixed to the other inclined tip portion 11 by soldering or adhesion with a conductive adhesive. An arrow H in FIG. 7B indicates a direction in which the other tip end portion 11 is superimposed on the sensing element 2 which is previously placed and fixed on the one tip end portion 11. By the way, as shown in FIGS. 7 (a) to 7 (b), when overlapping in the direction of the arrow H, the inclined tip portion 11 on the side where the sensing element 2 is not placed is placed upward (on the paper surface, (From the back of the paper to the front) is deformed to form at least a gap enough to sandwich the sensing element 2, and the pair of inclined tips 11, 11 are crossed in an X shape to hold the sensing element 2 To do. As described above, FIG. 7 illustrates the case where the element fixing step and the cross-shaped gripping portion forming step are performed while being mixed (mixed).
As another example, from FIG. 1 and FIG. 8 (a), as shown in FIG. 8 (b), the connecting piece portion 20 is bent to reduce the original pitch dimension P1 to a small pitch dimension P2. Thus, the holding portion 50 is formed in advance by crossing the pair of inclined tip portions 11 and 11. That is, first, the cross-shaped holding part forming step is completed. Thereafter, as shown by an arrow J in FIG. 8 (c), the sensing element 2 is slightly opened to the cross-shaped gripping portion 50 (using an opening leg jig or the like not shown in the drawing, or previously shown in FIG. 8 (b)). 8 until the inclined tip portions 11 and 11 are deformed up and down (open legs) until the state of (2) is reached, and a gap is formed so as to sandwich the sensing element 2). Under the holding state as shown in d), the sensing element 2 is fixed by soldering or bonding. As described above, FIG. 8 illustrates the case where the element fixing step is performed after the cross-shaped holding portion forming step is completed. Note that the insertion direction (arrow J) of the sensing element 2 is not limited to FIG. 8C, and may be performed from the left or right side of FIG. .

上述したように、基本プレス工程を経た後に、交差状挾持部形成工程・素子固着工程を行うことで、図２，図７（ｂ）（ｃ），図８（ｄ）に示すように感知素子２が挾持部50に、半田付け又は接着にて、固着されるので、その後、一組の細帯体１，１の間の連結片部20及び両側の連結片部20，20を、図１，図７（ｂ）の点線５にて示した位置で切断除去することによって、図３に示すように、感知素子２を介して先端部11，11が相互連結（一体化）された一組の細帯体１，１から成る一対の端子部材１’，１’を形成する。この連結片部20を切断除去する工程を切断工程と呼ぶ。
このようにして、切断工程によって、一対の端子部材１’，１’の先端が感知素子２を介して一体ものにセットされた中間組体61が得られる。 As described above, after the basic pressing step, the cross-shaped holding portion forming step and the element fixing step are performed, so that the sensing element as shown in FIGS. 2, 7B, 8C, and 8D is obtained. 2 is fixed to the holding part 50 by soldering or bonding. Thereafter, the connecting piece part 20 between the pair of narrow strips 1 and 1 and the connecting piece parts 20 and 20 on both sides are connected to each other as shown in FIG. , By cutting and removing at the position indicated by the dotted line 5 in FIG. 7 (b), a pair in which the tip portions 11 and 11 are interconnected (integrated) via the sensing element 2 as shown in FIG. A pair of terminal members 1 ′ and 1 ′ composed of the narrow strips 1 and 1 are formed. The process of cutting and removing the connecting piece 20 is called a cutting process.
Thus, the intermediate assembly 61 in which the tips of the pair of terminal members 1 ′ and 1 ′ are integrally set via the sensing element 2 is obtained by the cutting process.

次に、中間組体61を射出成形機の金型のキャビティ内に配設して射出成形することで、図４に示すように、感知素子２と、挾持部50と、（基端部13と傾斜先端部11の間の）中間部12と、が射出成形樹脂にて一体被覆されたボディ３を形成する。言い換えると、基端部13がボディ３から露出するようにインサート成形する。この樹脂被覆する工程を射出成形工程と呼ぶ。そして、所定ピッチ寸法Ｐ２に配設される一対の端子部材１’，１’を有する端子付センサが得られる。 Next, as shown in FIG. 4, the intermediate assembly 61 is disposed in the mold cavity of the injection molding machine and injection molded, so that the sensing element 2, the gripping portion 50, and the base end portion 13 are formed. And the intermediate portion 12 (between the inclined tip portion 11) form the body 3 integrally covered with the injection molding resin. In other words, insert molding is performed so that the base end portion 13 is exposed from the body 3. This resin coating process is called an injection molding process. And the sensor with a terminal which has a pair of terminal member 1 'and 1' arrange | positioned by the predetermined pitch dimension P2 is obtained.

次に、第２の実施の形態について説明する。図５に示すように、櫛型中間体60を打ち抜く際に、細帯体１，１の全体及びその先端が相互に平行となるように打ち抜く。このようにして、細帯体１の先端に平行先端部51を打ち抜き加工で形成する。 Next, a second embodiment will be described. As shown in FIG. 5, when the comb-shaped intermediate body 60 is punched, the entire strips 1 and 1 and the tip thereof are punched so as to be parallel to each other. In this way, the parallel tip 51 is formed by punching at the tip of the narrow strip 1.

打ち抜き加工後に、図６（ａ）（ｂ）（ｃ）に示すように、一組の細帯体１，１の平行先端部51，51の途中を斜め折り畳み加工によって、先端を相互に接近するように傾斜した傾斜先端部11，11を形成する。これを先端折曲げ工程と呼ぶ。上記基本プレス工程は、第２の実施の形態では、このような先端折曲げ工程を含んでいると言える。 After punching, as shown in FIGS. 6 (a), 6 (b), and 6 (c), the tips are brought close to each other by oblique folding in the middle of the parallel tip portions 51, 51 of the pair of narrow strips 1, 1. Inclined tip portions 11, 11 are formed as described above. This is called a tip bending process. In the second embodiment, it can be said that the basic pressing step includes such a tip bending step.

上記先端折曲げ工程によって、折り重ね部53が形成されるが、その傾斜角度θは前述の第１の実施の形態と同様の範囲とする。このように折り重ね部53の形成によって、その後の感知素子２の挾着力が増加し、また、端子部材１’の部分的な強度アップが図られる。そして、このような斜め折り畳み加工を含んだ基本プレス工程の後に、次の交差状挾持部形成工程・素子固着工程を（第１の実施の形態で述べた図７又は図８と同様に）行った後に、切断工程によって、一対の端子部材１’，１’を形成して、感知素子２を介して傾斜先端部11，11にて相互に連結一体化された中間組体61が得られる。その後は、上述の射出成形工程によって、図４と同様の構造の製品（端子付きセンサ）が製造される。 The folded portion 53 is formed by the tip bending step, and the inclination angle θ is set in the same range as in the first embodiment. By forming the folded portion 53 in this manner, the subsequent adhesion of the sensing element 2 is increased, and the strength of the terminal member 1 'is partially increased. Then, after the basic pressing process including such an oblique folding process, the following cross-shaped holding part forming process / element fixing process (similar to FIG. 7 or FIG. 8 described in the first embodiment) is performed. Thereafter, a pair of terminal members 1 ′ and 1 ′ are formed by a cutting process, and an intermediate assembly 61 is obtained that is connected and integrated with each other at the inclined tip portions 11 and 11 via the sensing element 2. Thereafter, a product (sensor with terminal) having the same structure as that shown in FIG. 4 is manufactured by the above-described injection molding process.

ところで、図１〜図８に於て、細帯体１及び端子部材１’は、簡略化して図面に示しており、実際は、（例えば）図９と図10と図11に示すように、補強部（折曲片部，凸条部）、貫孔部、切欠部、重ね部、折り畳み部、圧縮部等の部分を備え、打ち抜き，折り曲げ，折り畳み，圧縮加工，切断等の基本プレス工程を経て、作製される。
図９，図10，図１では、細帯体１が、傾斜先端部11と中間部12と基端部13を具備している。上記基本プレス工程に於て、基端部13は、図11（ａ）に示すように横断面一文字に打ち抜いて接続用片部10を形成し、接続用片部10の端縁10ａ，10ａを長手方向に沿った折り曲げ線で両側から内側に立ち上げて横断面コの字状にした後に、図11（ｂ）に示すように、さらに折曲げる。次に、図11（ｃ）に示すように、両側の端縁10ａ，10ａを内側に折曲げて、幅方向Ｗに４層構造に折り畳む。そして、図11（ｄ）に示すように、圧縮加工によって、四方から圧縮して横断面略正方形に形成する。また、最基端部を相手側コネクタの雌型接続部へスムーズに挿入するように、長手方向Ｎの外方にいくにつれて一辺の寸法が次第に小さくなる四角錘（台）状に圧縮形成する。基端部13は、幅方向Ｗの薄板素材の４枚分の厚みを有する棒状体のコネクタ用接続部と成る。 By the way, in FIGS. 1-8, the strip 1 and the terminal member 1 'are simplified and shown in the drawings. Actually, as shown in FIG. 9, FIG. 10, and FIG. Parts (folded pieces, ridges), through-holes, notches, overlapping parts, folding parts, compression parts, etc., through basic press processes such as punching, bending, folding, compression processing, cutting, etc. Produced.
In FIGS. 9, 10, and 1, the narrow band 1 includes an inclined distal end portion 11, an intermediate portion 12, and a proximal end portion 13. In the basic pressing step, the base end portion 13 is stamped into a single character in cross section as shown in FIG. 11 (a) to form the connecting piece portion 10, and the end edges 10a, 10a of the connecting piece portion 10 are formed. After rising inward from both sides along a fold line along the longitudinal direction to form a U-shape in cross section, it is further bent as shown in FIG. 11 (b). Next, as shown in FIG. 11 (c), the end edges 10a, 10a on both sides are folded inward and folded in the width direction W into a four-layer structure. And as shown in FIG.11 (d), it compresses from four directions by compression processing, and forms in a cross-sectional substantially square. Further, in order to smoothly insert the most proximal end portion into the female connection portion of the mating connector, it is compressed and formed into a quadrangular weight (base) shape in which the dimension of one side gradually decreases as it goes outward in the longitudinal direction N. The base end portion 13 serves as a connector connecting portion for a rod-like body having a thickness corresponding to four thin plate materials in the width direction W.

このような、各種塑性加工を含んだプレス工程を経て基端部13（接続用片部10）が形成される。図１から図２、図７（ａ）から（ｂ）、図８（ａ）から（ｂ）に示すように、その後、連結片部20の折り曲げ加工によって、一対の細帯体１，１の間隔ピッチＰが減少して（相互に接近し）、傾斜先端部11，11が交差する交差状挾持部形成工程に移る。
また、中間部12のプレス加工について述べると、打ち抜き加工によって横断面一文字型の帯板部を形成し、次に、図９と図10に示したような各断面形状に、折り曲げ，膨出成型，孔明け加工等によって、中間部12内で、基端寄りから、中間を越えて、第１中間部12Ａに、補強部30等を塑性加工する。 The base end portion 13 (connecting piece portion 10) is formed through a pressing process including various plastic workings. As shown in FIG. 1 to FIG. 2, FIG. 7 (a) to (b), and FIG. 8 (a) to (b), the pair of strips 1 and 1 are then bent by bending the connecting piece 20. The interval pitch P decreases (closes to each other), and the process proceeds to the cross-shaped gripping portion forming step where the inclined tip portions 11 and 11 intersect.
Further, the press working of the intermediate portion 12 will be described. A strip plate portion having a single cross-sectional shape is formed by punching, and then bent and bulged into each sectional shape as shown in FIGS. 9 and 10. In the intermediate portion 12, the reinforcing portion 30 and the like are plastically processed in the first intermediate portion 12A from the vicinity of the proximal end to beyond the intermediate portion by drilling or the like.

このような補強部形成工程において、第１中間部12の両側を長手方向Ｎに沿って折り曲げて、両側壁部30Ａ，30Ａを形成する。また、第１中間部12の幅方向Ｗの中間位置に横断面円弧状の凸条部30Ｂを形成する。壁部30Ａと凸条部30Ｂを同方向に突出させる。なお、細帯体１の長手方向Ｎ中途部は、連結片部20との連結部17とするため壁部30Ａ，30Ａを省略する。 In such a reinforcing part forming step, both side walls 30A and 30A are formed by bending both sides of the first intermediate part 12 along the longitudinal direction N. Further, a protruding strip portion 30B having an arcuate cross section is formed at an intermediate position in the width direction W of the first intermediate portion 12. The wall portion 30A and the ridge portion 30B are projected in the same direction. Note that the middle part N in the longitudinal direction of the narrow band 1 is a connecting part 17 with the connecting piece part 20, so that the wall parts 30A and 30A are omitted.

また、第１中間部12Ａから傾斜先端部11までの第２中間部12Ｂを打ち抜いて形成する。第２中間部12Ｂを、第１中間部12Ａの先端から先端へ向かうにつれて次第に狭幅とすると共に小段差をもって傾斜先端部11の幅寸法と同一となるようにし、さらに、その幅寸法を維持した後に傾斜先端部11に連結するように打ち抜く。 Further, the second intermediate portion 12B from the first intermediate portion 12A to the inclined tip portion 11 is punched and formed. The second intermediate portion 12B is gradually made narrower from the tip of the first intermediate portion 12A toward the tip, and is made to be the same as the width of the inclined tip 11 with a small step, and the width is maintained. It punches out so that it may connect with the inclination front-end | tip part 11 later.

なお、本発明は設計変更自由であって、ピッチ寸法ＰをＰ１からＰ２に減少させるために、図２では連結片部20を一山（一谷）形状に折曲げでいるが、これを二山（二谷）以上に折曲げることも可能である。また、感知素子２は、感温素子に限定されない。 In the present invention, the design can be freely changed, and in order to reduce the pitch dimension P from P1 to P2, in FIG. 2, the connecting piece portion 20 is bent into a single (one valley) shape. It is possible to bend more than a mountain (Futani). The sensing element 2 is not limited to a temperature sensitive element.

以上、要するに、本発明に係る端子付きセンサの製造方法の特徴は、複数本の平行な細帯体１，１と、細帯体１の長手方向Ｎの中途部を順次連結した連結片部20と、から成る櫛型中間体60を、作製し、連結片部20の切断によって細帯体１，１を分離させる前に、感知素子２を、隣り合う細帯体１，１の先端に挾持状に固着する点であり、さらに、連結片部20の山型又は谷型に折り曲げることによって、細帯体１，１のピッチ寸法ＰをＰ１からＰ２に減少させて、傾斜先端部11，11を交差させる点である。このような特徴を有する本発明によって、感知素子２を固着する（組立てる）工程が、一連の打ち抜き・折り曲げ等の基本プレス工程と同じ流れの中で、スムーズに高能率に、かつ、安定した半田付けや接着等により行い得る。 In short, the feature of the method for manufacturing a sensor with a terminal according to the present invention is that a plurality of parallel strips 1 and 1 and a connecting piece portion 20 in which midway portions in the longitudinal direction N of the strip 1 are sequentially connected. Before the separation strips 1 and 1 are separated by cutting the connecting piece 20, the sensing element 2 is held between the tips of the adjacent strips 1 and 1. Further, by bending the connecting piece portion 20 into a mountain shape or a valley shape, the pitch dimension P of the strips 1 and 1 is reduced from P1 to P2, and the inclined tip portions 11 and 11 are bent. Is the point where According to the present invention having such a feature, the process of fixing (assembling) the sensing element 2 is performed smoothly and efficiently in the same flow as the basic pressing process such as stamping and bending. It can be performed by attaching or bonding.

また、複数本の平行な細帯体１，１と、細帯体１の長手方向Ｎの中途部を順次連結する連結片部20と、から成ると共に、隣り合う細帯体１，１を一対毎に一組として一組の細帯体１，１の先端を相互に接近するように傾斜した傾斜先端部11，11を備えた櫛型中間体60を、めっき処理した金属薄板素材から作製する基本プレス工程と、次に、一組の細帯体１，１の間の連結片部20を折り曲げて、一組の細帯体１，１のピッチ寸法Ｐを減少させることによって傾斜先端部11，11を交差させて、感知素子２の保持用の挾持部50を形成する交差状挾持部形成工程と、感知素子２を挾持部50に半田等で固着する素子固着工程と、素子固着工程の後に、連結片部20を切断除去して一組の細帯体１，１から成る一対の端子部材１’，１’を形成する切断工程と、を具備しているので、感知素子２を安定して保持し固着不良を低減できる。確実に所定ピッチ寸法Ｐ２を得ることができる。端子部材１’，１’を形成する工程中に、感知素子２を固着でき、製造工程及びコストを削減できる。連結片部20の折り曲げ量を調整することで、様々な相手側のコネクタに対応したピッチ寸法Ｐを得ると共に、端子部材１’の形成に必要な金型を共用できる。端子部材１’，１’の成形後のめっき処理を省略できる。 In addition, it includes a plurality of parallel strips 1 and 1 and a connecting piece 20 that sequentially connects the middle portions of the strips 1 in the longitudinal direction N, and a pair of adjacent strips 1 and 1 are paired. A comb-shaped intermediate body 60 having inclined tip portions 11 and 11 inclined so that the tips of a pair of strips 1 and 1 approach each other as a set is produced from a metal sheet material plated. The inclined tip portion 11 is formed by bending the connecting piece portion 20 between the pair of strips 1, 1 and then reducing the pitch dimension P of the pair of strips 1, 1. , 11 are crossed to form a holding part 50 for holding the sensing element 2 for holding, an element fixing process for fixing the sensing element 2 to the holding part 50 with solder, and an element fixing process. And a cutting step of cutting and removing the connecting piece 20 to form a pair of terminal members 1 ′ and 1 ′ composed of a pair of strips 1 and 1. Since the Bei, the sensing element 2 can be reduced stably and held fixed defect. The predetermined pitch dimension P2 can be obtained with certainty. During the process of forming the terminal members 1 ′ and 1 ′, the sensing element 2 can be fixed, and the manufacturing process and cost can be reduced. By adjusting the amount of bending of the connecting piece 20, the pitch dimension P corresponding to various mating connectors can be obtained, and the mold necessary for forming the terminal member 1 ′ can be shared. The plating process after the molding of the terminal members 1 'and 1' can be omitted.

また、一組の細帯体１，１の先端を相互に接近するように傾斜した傾斜先端部11，11が、打抜加工によって形成されるので、傾斜先端部11，11の形成が高精度に、かつ、容易に一連の基本プレス工程中に行い得る。 In addition, since the inclined tip portions 11 and 11 that are inclined so that the tips of the pair of strips 1 and 1 approach each other are formed by punching, the formation of the inclined tip portions 11 and 11 is highly accurate. And easily during a series of basic pressing steps.

また、一組の細帯体１，１の先端を相互に接近するように傾斜した傾斜先端部11，11は、打抜加工によって予め形成した平行先端部51，51の途中を、斜め折り畳み加工によって形成される方法であるので、強固に感知素子２を挾持可能であり、また、傾斜先端部11の付根部の強度も増加する。 Further, the inclined tip portions 11 and 11 which are inclined so that the tips of the pair of strips 1 and 1 approach each other are obliquely folded in the middle of the parallel tip portions 51 and 51 formed in advance by punching. Therefore, the sensing element 2 can be firmly held, and the strength of the root portion of the inclined tip portion 11 is also increased.

また、基本プレス工程が、細帯体１の基端部13を、細帯体１の長手方向Ｎに沿った折曲げ線で両側から内側方向に折り畳んで、４層構造の横断面略四角形に形成する折り畳み工程を具備するので、薄板素材を用いても、基端部13を十分な強度を有するコネクタ用接続部とすることができる。また、細帯体１の先端側を薄く圧延塑性加工する必要がなく、素材寸法のままとすることができる。また、打ち抜かれた裁断面（めっきのない面）が内側に巻き込み状に配設されるので、コネクタ用接続部である基端部13は外方に露出する面が、全てめっき面となり、腐食や磨耗、電気抵抗の変動が防止される。 Further, the basic pressing step folds the base end portion 13 of the narrow strip 1 inward from both sides along a fold line along the longitudinal direction N of the narrow strip 1 to form a substantially quadrangular cross section having a four-layer structure. Since the folding step to be formed is provided, even if a thin plate material is used, the base end portion 13 can be a connector connecting portion having sufficient strength. Moreover, it is not necessary to carry out the rolling plastic processing thinly at the front end side of the narrow strip 1, and it can be made into the raw material dimension. In addition, since the punched cut surface (surface without plating) is arranged inwardly, the base end portion 13 that is the connector connection portion is entirely exposed to the plating surface and corroded. And changes in wear and electrical resistance are prevented.

また、基本プレス工程が、細帯体１の中間部12を、素材厚さ寸法のままで塑性加工して補強部30を形成する補強部形成工程を具備するので、薄板素材で成形されながらも十分な強度を得ることができる。 In addition, since the basic pressing step includes a reinforcing portion forming step in which the intermediate portion 12 of the narrow strip 1 is plastically processed with the raw material thickness dimension to form the reinforcing portion 30, while being formed of a thin plate material. Sufficient strength can be obtained.

また、感知素子２と挾持部50、及び、端子部材１’の中間部12に射出成形樹脂にて一体被覆して、ボディ３を形成する射出成形工程を具備するので、感知素子２と挾持部50を樹脂で保護できると共に安価に端子付センサを作成できる。 Further, since the sensing element 2 and the holding part 50 and the intermediate part 12 of the terminal member 1 ′ are integrally covered with an injection molding resin, an injection molding process for forming the body 3 is provided. 50 can be protected with resin and a sensor with a terminal can be made at low cost.

また、感知素子２は感温素子から成るので、端子部材１’，１’に感温素子が確実に保持（固着）された信頼性の高い温度センサを得ることができる Further, since the sensing element 2 is composed of a temperature sensing element, a highly reliable temperature sensor in which the temperature sensing element is securely held (fixed) to the terminal members 1 ′ and 1 ′ can be obtained.

１細帯体
１’ 端子部材
２感知素子
３ボディ
11 傾斜先端部
12 中間部
13 基端部
20 連結片部
30 補強部
50 挾持部
51 平行先端部
60 櫛型中間体
Ｎ長手方向 1 Narrow strip 1 'Terminal member 2 Sensing element 3 Body
11 Inclined tip
12 Middle part
13 Base end
20 Connecting piece
30 reinforcement
50 holding parts
51 Parallel tip
60 Comb intermediate N Longitudinal direction

Claims

複数本の平行な細帯体（１）（１）と、該細帯体（１）の長手方向（Ｎ）の中途部を順次連結した連結片部（20）と、から成る櫛型中間体（60）を、作製し、上記連結片部（20）の切断によって上記細帯体（１）（１）を分離させる前に、感知素子（２）を、隣り合う細帯体（１）（１）の先端に挾持状に固着することを特徴とする端子付きセンサの製造方法。 Comb-shaped intermediate body comprising a plurality of parallel strips (1) and (1) and a connecting piece (20) in which the middle portions in the longitudinal direction (N) of the strips (1) are sequentially connected. (60) is manufactured and before the strip (1) (1) is separated by cutting the connecting piece (20), the sensing element (2) is moved to the adjacent strip (1) ( A method for manufacturing a sensor with a terminal, characterized in that it is fixed to the tip of 1) in a clamping manner.

複数本の平行な細帯体（１）（１）と、該細帯体（１）の長手方向（Ｎ）の中途部を順次連結する連結片部（20）と、から成ると共に、隣り合う上記細帯体（１）（１）を一対毎に一組として該一組の細帯体（１）（１）の先端を相互に接近するように傾斜した傾斜先端部（11）（11）を備えた櫛型中間体（60）を、めっき処理した金属薄板素材から作製する基本プレス工程と、
次に、上記一組の細帯体（１）（１）の間の上記連結片部（20）を折り曲げて、該一組の細帯体（１）（１）のピッチ寸法（Ｐ）を減少させることによって上記傾斜先端部（11）（11）を交差させて、感知素子（２）の保持用の挾持部（50）を形成する交差状挾持部形成工程と、
上記感知素子（２）を上記挾持部（50）に半田又は導電性接着剤で固着する素子固着工程と、
上記素子固着工程の後に、上記連結片部（20）を切断除去して上記一組の細帯体（１）（１）から成る一対の端子部材（１’）（１’）を形成する切断工程と、
を具備していることを特徴とする端子付きセンサの製造方法。 It is composed of a plurality of parallel strips (1) (1) and a connecting piece (20) for sequentially connecting the middle portions in the longitudinal direction (N) of the strips (1) and adjacent to each other. Inclined tip portions (11) and (11) inclined so that the ends of the narrow strips (1) and (1) are close to each other, with the narrow strips (1) and (1) as a pair. A basic pressing process for producing a comb-shaped intermediate body (60) comprising a plated metal sheet material;
Next, the connecting piece portion (20) between the pair of narrow strips (1) (1) is bent, and the pitch dimension (P) of the pair of strips (1) (1) is set. A cross-shaped gripping portion forming step of crossing the inclined tip portions (11) and (11) by decreasing to form a gripping portion (50) for holding the sensing element (2);
An element fixing step of fixing the sensing element (2) to the holding part (50) with solder or a conductive adhesive;
After the element fixing step, the connecting piece (20) is cut and removed to form a pair of terminal members (1 ′) (1 ′) composed of the pair of narrow strips (1) (1). Process,
The manufacturing method of the sensor with a terminal characterized by comprising.

上記一組の細帯体（１）（１）の先端を相互に接近するように傾斜した傾斜先端部（11）（11）が、打抜加工によって形成される請求項２記載の端子付きセンサの製造方法。 The sensor with a terminal according to claim 2, wherein the tip end portions (11) (11) inclined so as to approach the ends of the pair of narrow strips (1) (1) are formed by punching. Manufacturing method.

上記一組の細帯体（１）（１）の先端を相互に接近するように傾斜した傾斜先端部（11）（11）は、打抜加工によって予め形成した平行先端部（51）（51）の途中を、斜め折り畳み加工によって形成される請求項２記載の端子付きセンサの製造方法。 The inclined tip portions (11) and (11) that are inclined so that the tips of the pair of narrow strips (1) and (1) approach each other are parallel tip portions (51) and (51) (51) (51) The method for manufacturing a sensor with a terminal according to claim 2, wherein the intermediate portion is formed by oblique folding.

上記基本プレス工程が、上記細帯体（１）の基端部（13）を、該細帯体（１）の上記長手方向（Ｎ）に沿った折曲げ線で両側から内側方向に折り畳んで、４層構造の横断面略四角形に形成する折り畳み工程を具備する請求項１，２，３又は４記載の端子付センサの製造方法。 In the basic pressing step, the base end (13) of the strip (1) is folded inward from both sides along a fold line along the longitudinal direction (N) of the strip (1). The manufacturing method of the sensor with a terminal of Claim 1, 2, 3 or 4 which comprises the folding process formed in the cross section substantially quadrangle of a 4 layer structure.

上記基本プレス工程が、上記細帯体（１）の中間部（12）を、素材厚さ寸法のままで塑性加工して補強部（30）を形成する補強部形成工程を具備する請求項１，２，３，４又は５記載の端子付センサの製造方法。 The said basic press process comprises the reinforcement part formation process which forms the reinforcement part (30) by plastically processing the intermediate part (12) of the said strip | belt body (1) with a raw material thickness dimension. , 2, 3, 4 or 5.

上記感知素子（２）と上記挾持部（50）、及び、上記端子部材（１’）の中間部（12）に射出成形樹脂にて一体被覆して、ボディ（３）を形成する射出成形工程を具備する請求項１，２，３，４，５又は６記載の端子付センサの製造方法。 An injection molding process in which the sensing element (2), the gripping part (50), and the intermediate part (12) of the terminal member (1 ′) are integrally covered with an injection molding resin to form a body (3). A method for manufacturing a sensor with a terminal according to claim 1, 2, 3, 4, 5, or 6.

上記感知素子（２）は感温素子から成る請求項１，２，３，４，５，６又は７記載の端子付センサの製造方法。 The method for manufacturing a sensor with a terminal according to claim 1, wherein the sensing element (2) comprises a temperature sensitive element.