JP5167597B2

JP5167597B2 - Metal ball detection sensor

Info

Publication number: JP5167597B2
Application number: JP2006133919A
Authority: JP
Inventors: 光男畠田; 信賢一色; 勉味岡; 耕一山口; 宏昭竹谷
Original assignee: Omron Corp
Current assignee: Omron Corp
Priority date: 2005-12-15
Filing date: 2006-05-12
Publication date: 2013-03-21
Anticipated expiration: 2026-05-12
Also published as: JP2007185483A

Description

この発明は、例えばパチンコ機などに内蔵されて遊技される金属球の通過の有無や通過数を検知する金属球検知センサに関し、さらに詳しくは配線基板上に電気的に配線接続されるコネクタを薄型化及び安定化して取付ける金属球検知センサに関する。 This invention may, for example be built like a pachinko machine related to the metal ball detecting sensor for detecting the presence or absence and the number of passes of the passing of the metal ball being the gaming, and more particularly connectors electrically wired to the wiring board about the metal ball detecting sensor attaching thinned and stabilized.

一般に、パチンコ機には、遊技盤に備えられる入賞口に遊技用の金属球(以下球と称す)が入賞されたとき、あるいは払出し通路を球が通過したときは、その球の通過を金属球検知センサによって検知している。 Generally, in a pachinko machine, when a metal ball for gaming (hereinafter referred to as a sphere) is won at a prize opening provided in a game board, or when a ball passes through a payout passage, the passage of the ball is passed through the metal ball. It is detected by the detection sensor.

このような金属球検知センサは、球を管理する各々のユニットに組込まれて各ユニットでの球の通過を検知確認及び通過数を計数しているが、パチンコ機１台当りに対し、入賞から払出しまでの各部位に多数の金属球検知センサを必要としている。ことに、遊技性を高めるための工夫の１つとして入賞口を増やした場合は、その増設数に比例して金属球検知センサの配設数が増えることになり、遊技盤の裏側では増設された金属球検知センサの新たな介在によって液晶表示装置等の配設空間が十分にとれなくなる。 Such a metal ball detection sensor is incorporated in each unit that manages the ball and detects the passage of the ball in each unit and counts the number of passes, but for each pachinko machine, A large number of metal ball detection sensors are required for each part until the payout. In particular, if the number of winning holes is increased as one of the ideas for improving game playability, the number of metal ball detection sensors will be increased in proportion to the number of expansion, and it will be added behind the game board. In addition, due to the new intervention of the metal ball detection sensor, a sufficient installation space for the liquid crystal display device or the like cannot be obtained.

例えば、大当たりの遊技状態で提供される大当たり入賞個数の払出し権利を得たとき、その入賞個数ごとに開閉する開閉入賞口の上部または下部の位置に、これに連動して短く開閉し、連続入賞時には、さらに入賞権利を増大させるという別の開閉入賞口を設け、これら上下の開閉入賞口を設けることにより、パチンコ機の遊技を一層楽しませるようにした機種が知られている。 For example, when you get a payout right for the number of jackpots offered in the jackpot game state, it opens and closes at the upper or lower position of the opening / closing prize opening that opens and closes for each number of winnings. In some cases, another open / close prize opening that further increases the right to win a prize is provided, and by providing these upper and lower opening / closing prize openings, a model that further enhances the pachinko machine game is known.

ところが、上下の位置に開閉入賞口を配設した場合は、これらの上下の位置に対応して同様に上下の位置に金属球検知センサをそれぞれ配設する必要があるため、遊技盤の裏側では上下の配設空間が狭められ、大型の液晶表示装置等の配設に制約を受けることになる。このため、各ユニットに組込まれる金属球検知センサの高さを低くして薄型化すれば、各ユニットでの薄型化が可能になり、ひいては遊技盤の裏側での配設空間を広くとれることになる。それゆえ、金属球検知センサ自体の高さを低くする薄型化が望まれている。 However, when the open / close prize opening is arranged at the upper and lower positions, it is necessary to arrange the metal ball detection sensors at the upper and lower positions corresponding to these upper and lower positions respectively. The upper and lower arrangement spaces are narrowed, and the arrangement of a large liquid crystal display device or the like is restricted. For this reason, if the height of the metal ball detection sensor incorporated in each unit is reduced and the thickness is reduced, the thickness of each unit can be reduced, and as a result, the arrangement space on the back side of the game board can be increased. Become. Therefore, it is desired to reduce the thickness of the metal ball detection sensor itself.

ところが、現状では金属球検知センサの薄型化を図る場合に、この金属球検知センサの電気的な配線接続部分である雄型と雌型とを着脱させるコネクタの構造が原因になって満足できる薄型化が得られなかった。 However, at present, when thinning the metal ball detection sensor, the thin structure that can be satisfied due to the structure of the connector that attaches and detaches the male mold and female mold, which are the electrical wiring connection portions of the metal ball detection sensor, is satisfactory. Could not be obtained.

例えば、先行出願の特許文献１に開示されている技術では、プリント基板に切欠き形成されたコ形部にコネクタハウジングを介在させ、該コネクタハウジングを若干沈み込ませた状態に取付けることによって、該コネクタハウジングの高さを抑えて電子スイッチの薄型化を図っている。 For example, in the technology disclosed in Patent Document 1 of the prior application, a connector housing is interposed in a U-shaped portion formed in a notch in a printed circuit board, and the connector housing is attached in a slightly depressed state, thereby The height of the connector housing is suppressed to make the electronic switch thinner.

しかし、コネクタハウジングの取付け高さを低くして電子スイッチを薄型化することには貢献できるが、コネクタハウジング自体の薄型化は図れなかった。また、プリント基板とコネクタハウジングとを一体化する接合力が乏しく、現状ではプリント基板にコネクタハウジングをはんだ付けすることで、プリント基板とコネクタハウジングとを電気的に配線接続する兼用した接合を施しているが、これらの接合面間の強度を十分に確保できないため、外力を受けて外れてしまうことがあった。例えば、コネクタハウジングに対して外部より挿脱される雌型側コネクタ（ソケット）の取扱いによって、該コネクタハウジングがプリント基板の上方に引っ張られ、プリント基板より浮き上がるなどして外れてしまうことがある。また、一時的に外力を受けて外れた後は、元に戻っても、そのはんだ付け部分が僅かに外れた時点で電気的に断線が生じ、使用不可になってしまう。このようなことからプリント基板とコネクタハウジングとの小さな部品間同士の接合でも強固な接合を確保することが要望されている。
特開平１０−３０８２６５号公報。 However, although it is possible to contribute to making the electronic switch thinner by lowering the mounting height of the connector housing, the connector housing itself cannot be made thinner. Also, the bonding force that integrates the printed circuit board and the connector housing is poor, and at present, the connector housing is soldered to the printed circuit board, so that the printed circuit board and the connector housing can be joined together for electrical wiring connection. However, since the strength between these joint surfaces cannot be sufficiently secured, it may be detached due to external force. For example, when a female connector (socket) that is inserted into and removed from the connector housing from the outside is handled, the connector housing may be pulled above the printed circuit board and lifted off the printed circuit board. In addition, after being temporarily removed by external force, even if it returns to its original state, electrical disconnection occurs when the soldered portion is slightly removed, making it unusable. For this reason, there is a demand for ensuring a strong joint even between small parts of the printed circuit board and the connector housing.
JP-A-10-308265.

そこでこの発明は、配線基板にコネクタベースを薄型化して取付ける金属球検知センサのコネクタを提供することを目的とする。 Accordingly, an object of the present invention is to provide a connector for a metal ball detection sensor in which a connector base is thinly attached to a wiring board.

この発明は、開放した直方体の上面に、一側に金属球の通過を検知するセンサ部を有し、他側に前記センサ部に接続してなるセンサ回路を実装した配線基板と、該配線基板に電気的に配線接続されて設けられるコネクタベースとを搭載したベースを有する金属球検知センサであって、前記コネクタベースの一側面に設けられる配線接続用の開放端側に配設される雄型または雌型のコネクタ部と、該コネクタ部と凹凸対応して外部より挿脱自在に配線接続されるソケットの雄型または雌型のコンタクトとの少なくとも雌型の凹部形状を、縦横の長さ比のうち、縦方向を短く、横方向を長くした横長の凹凸対応形状にしてなり、前記コネクタベースは、下面を開放した箱形状を有し、前記ベースの上面に設けられた前記コネクタベース嵌合用の凹部に下部を嵌め込んで固定され、前記ベースの開放した上面であって、前記コネクタベースの搭載面側の外周囲を絶縁性樹脂材により包み込んでモールド固定した金属球検知センサであることを特徴とする。 The present invention has a wiring board having a sensor part for detecting the passage of a metal sphere on one side on the upper surface of an opened rectangular parallelepiped and a sensor circuit connected to the sensor part on the other side, and the wiring board in an electrically metal ball detecting sensor having equipped with a base and a connector base provided hardwired, male mold is disposed on the open end side of the wire connection provided on one side of the connector base Alternatively, at least a female recess shape between a female connector portion and a male or female contact of a socket that is connected to the connector portion so as to be detachable from the outside in correspondence with the concave and convex portions, and a length ratio of length to width of the longitudinal direction short, Ri greens and a laterally long and oblong uneven corresponding shapes, the connector base has a box shape having an open lower surface, fitting the connector base is provided on an upper surface of the base Recessed recess Is fixed by fitting the lower portion, and wherein the A opened upper face of the base, the outer periphery of the connector base of the mounting surface is a metal ball detecting sensors mold fixed wraps an insulating resin material To do.

この発明の態様として、前記配線基板の前記コネクタベースを搭載する端部には切欠き開口部が設けられ、前記コネクタベースは外周囲の３側面を該切欠き開口部に保持されて、該配線基板に縦貫させた状態に取り付けられた構成とすることができる。 As an aspect of the present invention, a notch opening is provided at an end portion of the wiring board on which the connector base is mounted, and the connector base is held on the notch opening by surrounding three outer peripheral sides. It can be set as the structure attached to the board | substrate in the state penetrated vertically .

この発明の態様として、前記センサ部の上面側には該センサ部の外周囲の３側面を覆った状態で前記ベースに取付けられる導電性を有する外殻部材を備え、該外殻部材の開放された一側面には、端縁を延設させたモールド樹脂との連結片を延設して備えた構成とすることができる。 As an aspect of the present invention, the upper surface side of the sensor unit includes a conductive outer shell member attached to the base in a state of covering the three outer peripheral sides of the sensor unit, and the outer shell member is opened. In addition, a connecting piece with a mold resin having an extended end edge may be provided on one side surface .

この発明によれば、金属球検知センサの薄型化を達成することができる。 According to the present invention, it is possible to reduce the thickness of the metal ball detection sensor.

この発明の一実施例を以下図面に基づいて説明する。
［第１実施例］
図面はパチンコ機に組込まれて球の通過を検知する金属球検知センサを示し、図１は金属球検知センサ１１裏側の斜視図、図２は金属球検知センサ１１にソケット１２が接続された使用状態を示す斜視図、図３は金属球検知センサ１１の裏側を斜め上方から見た分解斜視図、図４は金属球検知センサ１１の裏側を斜め下方から見た分解斜視図を示す。 An embodiment of the present invention will be described below with reference to the drawings.
[First embodiment]
The drawing shows a metal ball detection sensor incorporated in a pachinko machine to detect the passage of a sphere, FIG. 1 is a perspective view of the back side of the metal ball detection sensor 11, and FIG. 2 is a use in which a socket 12 is connected to the metal ball detection sensor 11. FIG. 3 is an exploded perspective view of the back side of the metal ball detection sensor 11 as viewed obliquely from above, and FIG. 4 is an exploded perspective view of the back side of the metal ball detection sensor 11 as viewed from diagonally below.

以下の実施例は使用状態で記載すると、シールドカバーや部品搭載面側が下面になって搭載部品が見えなくなってしまうことから下面側を上面として説明する。金属球検知センサ１１は、金属球の通過によりシールドカバーが変形しにくいように、シールドカバーや電子部品の搭載面側を下面にして使用する方が望ましい。 In the following examples, the description will be made with the lower surface side as the upper surface because the shield cover and the component mounting surface side become the lower surface and the mounted component becomes invisible when described in the state of use. It is desirable to use the metal ball detection sensor 11 with the mounting surface side of the shield cover and the electronic component as the lower surface so that the shield cover is not easily deformed by the passage of the metal ball.

この金属球検知センサ１１は、静電気対策用に上面に設けられるシールドカバー１３と、一側に内蔵されるセンサ部としてのコイルスプール１４と他側に内蔵される配線基板１５を連結してなる検知構成体１６と、コネクタベース１７と、これらを搭載するベース１８と、該ベース１８の上面に搭載した部品をモールド固定するための絶縁性樹脂材１９とから構成される。 This metal ball detection sensor 11 is a detection formed by connecting a shield cover 13 provided on the upper surface for countermeasures against static electricity, a coil spool 14 as a sensor part built in one side, and a wiring board 15 built in the other side. The structure 16 includes a connector base 17, a base 18 on which these are mounted, and an insulating resin material 19 for fixing a component mounted on the upper surface of the base 18.

前記検知構成体１６を構成する一側のコイルスプール１４は、コイル巻線２０を巻回する巻胴部２１の内側に、球Ｐを通過させる貫通孔２２を有している。さらに、巻胴部２１の上下両端に設けられたフランジ２３，２４間にコイル巻線２０が巻かれる。 The coil spool 14 on one side constituting the detection component 16 has a through-hole 22 through which the sphere P passes inside a winding body portion 21 around which the coil winding 20 is wound. Further, the coil winding 20 is wound between the flanges 23 and 24 provided at the upper and lower ends of the winding drum portion 21.

また、垂直方向に貫通孔２２を開口した巻胴部２１からは水平方向に平板状の基板接続部２５を延設している。この基板接続部２５は端部にコ形部２６が設けられ、このコ形部２６のコ形空間に後述する配線基板１５の端部が差し込まれて一体に連結される。また、基板接続部２５の上面には、コイル巻線２０側からの両端を配線基板１５側に配線接続する際に掛け回すための一対の中継突部２７を突設している。 Further, a plate-like substrate connecting portion 25 extends in the horizontal direction from the winding drum portion 21 having the through hole 22 opened in the vertical direction. The substrate connecting portion 25 is provided with a U-shaped portion 26 at an end portion, and an end portion of a wiring board 15 to be described later is inserted into the U-shaped space of the U-shaped portion 26 so as to be integrally connected. In addition, a pair of relay protrusions 27 are provided on the upper surface of the board connecting portion 25 so as to hang around both ends from the coil winding 20 side when the wires are connected to the wiring board 15 side.

前記配線基板１５は、上面にＩＣ、抵抗、コンデンサ等の電子部品１５ａを実装して発振回路や検波回路、出力回路等が構成されている。そして、この配線基板１５の一端部が前記基板接続部２５のコ形部２６に差し込まれて取付けられ、この指し込み部分の両側に、コイル巻線２０の両端部をそれぞれ接続する突片２８が突設されている。そして、これらの突片２８に発振回路や信号出力用の回路パターンが接続される。 The wiring board 15 is configured with an oscillation circuit, a detection circuit, an output circuit, and the like by mounting electronic components 15a such as an IC, a resistor, and a capacitor on the upper surface. One end portion of the wiring board 15 is inserted and attached to the U-shaped portion 26 of the board connecting portion 25, and projecting pieces 28 respectively connecting the both end portions of the coil winding 20 are provided on both sides of the pointing portion. Projected. An oscillation circuit and a signal output circuit pattern are connected to these protrusions 28.

配線基板１５の他端部には凹形状に切欠いた切欠き開口部２９を開口しており、この切欠き開口部２９にコネクタベース１７が取付けられる。コネクタベース１７は一側面を開放した箱形状を有し、外周囲の３側面が切欠き開口部２９に保持されて、該コネクタベース１７が配線基板１５に縦貫された状態に取付けられる。そして、このコネクタベース１７を配線基板１５に取付けたときの一側面に設けられる配線接続用の開放端側にコネクタピン４１が並列して対向し、ここに、金属球検知センサ１１を示す図５の平面図及び図６の側面図にも示すように、ソケット１２が差し込まれて電気的に接続される。 At the other end of the wiring board 15, a notch opening 29 cut into a concave shape is opened, and the connector base 17 is attached to the notch opening 29. The connector base 17 has a box shape with one side open, and three outer peripheral side surfaces are held in the notch opening 29 so that the connector base 17 is attached to the wiring board 15 in a longitudinal manner. Then, the connector pin 41 is opposed in parallel to the open end side for wiring connection provided on one side surface when the connector base 17 is attached to the wiring board 15, and the metal ball detection sensor 11 is shown in FIG. As shown in the plan view of FIG. 6 and the side view of FIG. 6, the socket 12 is inserted and electrically connected.

ベース１８は上面を開放した長方体を有し、該ベース１８の一側にコイルスプール１４を搭載し、他側に配線基板１５を搭載する。このベース１８の一側には、コイルスプール１４の貫通孔２２と対応して開口するベース貫通孔３０を有し、該ベース貫通孔３０に前記コイルスプール１４の巻胴部２１の下部が嵌合して固定される。 The base 18 has a rectangular shape with an open upper surface, and the coil spool 14 is mounted on one side of the base 18 and the wiring board 15 is mounted on the other side. One side of the base 18 has a base through hole 30 that opens in correspondence with the through hole 22 of the coil spool 14, and the lower part of the winding drum portion 21 of the coil spool 14 is fitted into the base through hole 30. Fixed.

また、ベース１８の中間部には位置決め溝３１を有し、ここに基板接続部２５の裏面中央に形成された位置決め突部３２（図４参照）を嵌合させて位置決めしている。同じく、位置決め溝３１に隣接して幅方向に長くコ形部２６の嵌合用に凹部形成した凹型嵌合部３３には、基板接続部２５のコ形部２６の下側が嵌合して同様に位置決めされる。 In addition, a positioning groove 31 is provided at an intermediate portion of the base 18, and a positioning protrusion 32 (see FIG. 4) formed at the center of the back surface of the board connecting portion 25 is fitted therein for positioning. Similarly, the lower side of the U-shaped portion 26 of the board connecting portion 25 is fitted to the concave fitting portion 33 which is adjacent to the positioning groove 31 in the width direction and formed with a concave portion for fitting the U-shaped portion 26. Positioned.

さらに、ベース１８の他側（配線基板１５側）の端部にはコネクタベース嵌合用の凹部３５を有しており、ここにコネクタベース１７の下部が嵌まり込んで固定される。また、ベース１８の外周囲側面のうち、コネクタベース１７と対応する一側面は、外部よりソケット１２を着脱する配線接続用に開放した段付き開放部３６に開口している。 Further, the other end (wiring board 15 side) of the base 18 has a connector base fitting recess 35, and the lower portion of the connector base 17 is fitted and fixed therein. Further, of the outer peripheral side surfaces of the base 18, one side surface corresponding to the connector base 17 opens into a stepped open portion 36 opened for wiring connection for attaching and detaching the socket 12 from the outside.

また、ベース１８の両外側面には小さな突起３７や凹状段部３７ａを複数形成しており、後述する絶縁性樹脂材１９をモールド固定した際に、該ベース１８と絶縁性樹脂材１９との連結性を高める役目を有している。 In addition, a plurality of small protrusions 37 and concave step portions 37a are formed on both outer side surfaces of the base 18, and when the insulating resin material 19 to be described later is fixed by molding, the base 18 and the insulating resin material 19 Has the role of improving connectivity.

前記シールドカバー１３は、相互干渉や周囲金属の影響を抑制するのに適した銅材などの導電性を有する金属板で構成され、下面及び一側面を開放した箱形状を有している。そして、このシールドカバー１３の上面中央部に、貫通孔２２より少し大径のカバー貫通孔３８を開口し、該カバー貫通孔３８が前記貫通孔２２と対応し、且つ貫通孔２２の内周面を除く巻胴部２１の外周囲を覆った状態でベース１８に取付けられる。このシールドカバー１３の一開放側面を除く、閉鎖された外周囲の３側面１３ａ，１３ｂ，１３ｃは、ベース１８の同対応位置の３側面１８ａ，１８ｂ，１８ｃに対応して軽く嵌合させると共に、部分的にカシメて仮止めした状態に取付けられる。 The shield cover 13 is made of a metal plate having conductivity such as a copper material suitable for suppressing the influence of mutual interference and surrounding metals, and has a box shape with an open lower surface and one side surface. A cover through hole 38 having a slightly larger diameter than the through hole 22 is opened at the center of the upper surface of the shield cover 13. The cover through hole 38 corresponds to the through hole 22 and the inner peripheral surface of the through hole 22. It is attached to the base 18 in a state of covering the outer periphery of the winding drum portion 21 except for. The three outer side surfaces 13a, 13b, and 13c of the outer periphery except the one open side surface of the shield cover 13 are lightly fitted in correspondence with the three side surfaces 18a, 18b, and 18c at the corresponding positions of the base 18, and It is attached in a state where it is partially crimped and temporarily fixed.

また、シールドカバー１３の開放された一側面には、開放側の該シールドカバー１３より端縁を少し延設させた樹脂連結片３９を延設しており、後述する絶縁性樹脂材１９によりモールド固定した際に、シールドカバー１３側の開放面における該シールドカバー１３と絶縁性樹脂材１９との接触面積を増やして双方の連結性を高める役目を有している。 Further, a resin connection piece 39 having an edge slightly extended from the shield cover 13 on the open side is extended on one side surface of the shield cover 13 and is molded by an insulating resin material 19 to be described later. When fixed, it has the role of increasing the contact area between the shield cover 13 and the insulating resin material 19 on the open surface on the shield cover 13 side, thereby enhancing the connectivity of both.

そして、ベース１８上に、検知構成体１６とコネクタベース１７とシールドカバー１３を組付けた後、最後に絶縁性樹脂材１９によって、図１及び図２と、図５をＡ−Ａ断面して示す図７、及び図５をＢ−Ｂ断面して示す図８にも示すように、前記ベース１８の他側に搭載されている配線基板１５の上方及び前記コイル巻線２０の外周面側に形成される環状隙間４０を絶縁性樹脂材１９によりモールド固定して封止する。 Then, after assembling the detection structure 16, the connector base 17, and the shield cover 13 on the base 18, finally, the insulating resin material 19 is used to cross-section FIGS. 1 and 2 and FIG. 7 shown in FIG. 7 and FIG. 8 showing a cross-sectional view taken along the line B-B, the wiring board 15 mounted on the other side of the base 18 and the outer peripheral surface side of the coil winding 20 are also shown. The formed annular gap 40 is fixed by molding with the insulating resin material 19 and sealed.

前記絶縁性樹脂材１９を用いてモールド固定した場合は、該絶縁性樹脂材１９にて配線基板１５の上面を封止できるため、配線基板１５は外部からの静電気の悪影響を受けない。ことに、配線基板１５の上面は電子部品１５ａなどを搭載しているが、該配線基板１５の上面は絶縁性樹脂材１９により上方より平面的に覆っているため、薄型化に適した平坦な封止形状に設けることができる。 When the insulating resin material 19 is used for mold fixing, the upper surface of the wiring board 15 can be sealed with the insulating resin material 19, so that the wiring board 15 is not adversely affected by external static electricity. In particular, the electronic substrate 15a and the like are mounted on the upper surface of the wiring board 15. However, since the upper surface of the wiring board 15 is planarly covered with the insulating resin material 19 from above, a flat surface suitable for thinning is provided. It can be provided in a sealed shape.

また、球Ｐが貫通孔２２を通過する際に該球Ｐが貫通孔２２の内周面に当って生じる振動を絶縁性樹脂材１９によって抑制できるため電子部品１５ａ間の共振を抑制する効果が得られる。また、絶縁性樹脂材１９は、配線基板１５の上面を保護するカバー兼用に設けることができる。このため、上面カバーは不要になり、カバーの高さ分だけ低くした薄型の金属球検知センサ１１を構築できる。 In addition, since the insulating resin material 19 can suppress vibration generated when the sphere P passes through the through-hole 22 and the sphere P hits the inner peripheral surface of the through-hole 22, the effect of suppressing resonance between the electronic components 15a is obtained. can get. The insulating resin material 19 can also be provided as a cover that protects the upper surface of the wiring board 15. For this reason, an upper surface cover becomes unnecessary and the thin metal ball | bowl detection sensor 11 made low by the height of a cover can be constructed | assembled.

さらに、充填された絶縁性樹脂材１９は、金属球検知センサ１１を平面的に表した図５をＣ−Ｃ断面して示す図９、及び図５をＤ−Ｄ断面して示す図１０にも見られるように、上面を閉鎖するシールドカバー１３と、コイルスプール１４の外周面と、その外周囲及び下面を閉鎖するベース１８との間で囲まれる環状隙間４０に行き渡る。このため、絶縁性樹脂材１９がコイル巻線２０を包み込んで保護すると共に、仮止め状態にあったシールドカバー１３をベース１８上に一体に固定することができる。また、コイル巻線２０を細線化しても絶縁性樹脂材１９により球Ｐが貫通孔２２を通過する際に該球Ｐが貫通孔２２の内周面に当って生じる振動から保護されるので、巻数を減らさずに細線化が可能になり、小さく収納できることから高さ方向を低くして金属球検知センサ１１の薄型化に貢献することができる。 Further, the filled insulating resin material 19 is shown in FIG. 9 showing a plan view of the metal ball detection sensor 11 in FIG. 5 taken along the line CC and FIG. 10 showing the figure taken along the line DD. As seen, the shield cover 13 that closes the upper surface, the outer peripheral surface of the coil spool 14, and the annular gap 40 that is enclosed between the outer periphery and the base 18 that closes the lower surface are spread. For this reason, the insulating resin material 19 wraps and protects the coil winding 20, and the shield cover 13 in the temporarily fixed state can be integrally fixed on the base 18. In addition, even if the coil winding 20 is thinned, the insulating resin material 19 protects the sphere P from vibration that hits the inner peripheral surface of the through hole 22 when the sphere P passes through the through hole 22. Thinning can be achieved without reducing the number of turns, and the wire can be accommodated small, so that the height direction can be lowered to contribute to the thinning of the metal ball detection sensor 11.

前記シールドカバー１３は図２に示すようにコイルスプール１４の貫通孔２２に球Ｐが上方から流入する該貫通孔２２周辺の下面側及び貫通孔２２周辺の外側面を静電気対策用に覆い、且つ安定電位と接続しないので、貫通孔２２を通過する球Ｐが帯電していても、該シールドカバー１３や絶縁性樹脂材１９によって遮断し、内部のコイル巻線２０を保護することができる。このため、コイルスプール１４のコイル巻線２０は外部からの静電気の悪影響を受けなくなる。従って、コイル巻線２０は安定した検知感度を維持して正確に球の検知動作を実行する。ことに、シールドカバー１３を外殻部材として設け、コイル巻線２０との間に絶縁性樹脂材１９を配設することでコイル巻線２０の検知感度を保護することができる。このような検知感度の保護技術を確立することにより、コイル巻線２０に貫通孔２２の上面からの静電気を防止するためのシールド部材を省略することができ、そのシールド部材の高さ分だけ配設寸法を低くできる。このため、コイルスプール１４側においても金属球検知センサ１１を薄型化できる。 As shown in FIG. 2, the shield cover 13 covers the lower surface side around the through-hole 22 and the outer surface around the through-hole 22 where the ball P flows into the through-hole 22 of the coil spool 14 from above, as a countermeasure against static electricity, and Since it is not connected to a stable potential, even if the sphere P passing through the through hole 22 is charged, it can be blocked by the shield cover 13 or the insulating resin material 19 to protect the internal coil winding 20. For this reason, the coil winding 20 of the coil spool 14 is not affected by the external static electricity. Therefore, the coil winding 20 accurately performs the sphere detection operation while maintaining a stable detection sensitivity. In particular, the detection sensitivity of the coil winding 20 can be protected by providing the shield cover 13 as an outer shell member and disposing the insulating resin material 19 between the coil winding 20. By establishing such detection sensitivity protection technology, a shield member for preventing static electricity from the upper surface of the through-hole 22 can be omitted from the coil winding 20, and the shield member is arranged by the height of the shield member. The installation dimension can be lowered. For this reason, the metal ball detection sensor 11 can be thinned also on the coil spool 14 side.

さらに、シールドカバー１３とコイルスプール１４との球Ｐが流出される各上面１３ｄ，１４ａ側を略同一の平面高さに揃えている。このため、これらの上面１３ｄ，１４ａとコイル巻線２０までの距離が一定となり、各上面１３ｄ，１４ａが検知基準位置となり、球の検知開始位置が一定となる。従って、貫通孔２２を通過し始める球Ｐに対するコイル巻線２０での検知タイミングが常に正確にとれ、個々の球に対する正確な検知特性が得られる。 Further, the upper surfaces 13d and 14a from which the balls P of the shield cover 13 and the coil spool 14 flow out are aligned at substantially the same plane height. Therefore, the distances between the upper surfaces 13d and 14a and the coil winding 20 are constant, the upper surfaces 13d and 14a are the detection reference positions, and the detection start position of the sphere is constant. Therefore, the detection timing in the coil winding 20 with respect to the sphere P that starts to pass through the through hole 22 can always be accurately obtained, and an accurate detection characteristic for each sphere can be obtained.

この場合、コイルスプール１４の上面１４ａを、シールドカバー１３の上面１３ｄより僅かに軸方向に突出させて設けても、該コイルスプール１４の上面１４ａは外部に露出して球流入側の検知基準位置となるため、コイルスプール１４の上面１４ａとシールドカバー１３の上面１３ｄとは同じか、もしくはコイルスプール１４の上面１４ａを僅かに突出させて設けてもよく、何れにしても同様な作用効果が得られる。 In this case, even if the upper surface 14a of the coil spool 14 is provided so as to protrude slightly in the axial direction from the upper surface 13d of the shield cover 13, the upper surface 14a of the coil spool 14 is exposed to the outside and is detected on the ball inflow side. Therefore, the upper surface 14a of the coil spool 14 and the upper surface 13d of the shield cover 13 may be the same, or the upper surface 14a of the coil spool 14 may be provided so as to slightly protrude. It is done.

また、コイルスプール１４の下面１４ｂ側も、該コイルスプール１４を保持するベース１８の下面１８ｄと略同一の平面上に揃えている。このため、各下面１４ｂ，１８ｄからコイル巻線２０までの距離が一定であり、下面１４ｂ，１８ｄ側を検知基準位置に設定することもできる。 Further, the lower surface 14 b side of the coil spool 14 is also aligned on the same plane as the lower surface 18 d of the base 18 that holds the coil spool 14. For this reason, the distance from each lower surface 14b, 18d to the coil winding 20 is constant, and the lower surface 14b, 18d side can be set as the detection reference position.

さらに、コイルスプール１４の上下面１４ａ，１４ｂから検知位置を特定できるため、球Ｐが貫通孔２２を通過するときの検知開始位置から検知終了位置まで正確に検知できる。またこのときは、金属球検知センサ１１の表裏の取付け方向に制限を受けず、取扱い性に優れ、高精度で信頼性の高い確かな球の検知ができる。 Furthermore, since the detection position can be specified from the upper and lower surfaces 14a, 14b of the coil spool 14, it is possible to accurately detect from the detection start position when the ball P passes through the through hole 22 to the detection end position. At this time, the mounting direction of the front and back of the metal ball detection sensor 11 is not limited, and it is possible to detect a reliable ball with excellent handling and high accuracy and high reliability.

この際、上面１３ｄ，１４ａからコイル巻線２０までの距離は、上面のシールドカバー１３からの金属としての影響を受けない距離に設定する。さらに、下面１４ｂ，１８ｄからコイル巻線２０までの距離も同様に金属としての影響を受けない一定の距離をとって設けている。例えば、２個の金属球検知センサ１１を上下に連設して球の流下方向を検知するように構成した場合にでも、下部の金属球検知センサ１１の上面に位置するシールドカバー１３の金属による静電気の影響を、上部の金属球検知センサ１１のコイル巻線２０が受けない一定の距離をとって設けている。 At this time, the distance from the upper surfaces 13d and 14a to the coil winding 20 is set to a distance that is not affected by the metal from the shield cover 13 on the upper surface. Further, the distance from the lower surface 14b, 18d to the coil winding 20 is also set at a constant distance that is not affected by the metal. For example, even when the two metal ball detection sensors 11 are connected in the vertical direction to detect the flow direction of the sphere, the metal of the shield cover 13 located on the upper surface of the lower metal ball detection sensor 11 is used. It is provided at a certain distance that the coil winding 20 of the upper metal ball detection sensor 11 is not affected by static electricity.

前記貫通孔２２は単一のコイルスプール１４を縦貫して開口しているため一部材で済み、他部材の存在がなく、それゆえ該貫通孔２２の内周面には段差が生じず、球Ｐの円滑な流れを確保することができる。 Since the through hole 22 is opened through the single coil spool 14, only one member is required, and there is no other member. Therefore, there is no step on the inner peripheral surface of the through hole 22, and A smooth flow of P can be secured.

さらに、粘性の高い絶縁性樹脂材１９を用いれば、コイル巻線２０の充填部分においても、巻線空間への樹脂の侵入及び介在が少なくなり、コイル巻線２０の性能を劣化させない利点がある。また、接着性の高い絶縁性樹脂材１９を用いれば、部品の固定強度が高まり、剛性も高めることができる。従って、高粘性、高接着性及び電気絶縁性に優れた絶縁性樹脂材１９を用いるのが適している。 Furthermore, if the insulating resin material 19 having high viscosity is used, there is an advantage that the resin does not enter and intervene in the winding space even in the filling portion of the coil winding 20 and the performance of the coil winding 20 is not deteriorated. . Moreover, if the insulating resin material 19 with high adhesiveness is used, the fixing strength of components can be increased and the rigidity can be increased. Therefore, it is suitable to use the insulating resin material 19 excellent in high viscosity, high adhesiveness and electrical insulation.

さらに、配線基板１５側に絶縁性樹脂材１９を充填して封止した際には、金属球検知センサ１１を平面的に表した図５をＥ−Ｅ断面して示す図１１、及び図５をＦ−Ｆ断面して示す図１２のように、コネクタベース１７の部分まで充填して各部品を強固にモールド固定する。また、図５をＧ−Ｇ断面して示す図１３のように、コネクタベース１７の外周囲の３側面を抱き込むようにモールド固定して、該コネクタベース１７を配線基板１５及びベース１８に一体に固定する。 Furthermore, when the insulating resin material 19 is filled and sealed on the wiring board 15 side, FIGS. 11 and 5 showing the metal ball detection sensor 11 in a plan view of FIG. As shown in FIG. 12 showing a cross-section of FF, the connector base 17 is filled and each component is firmly fixed by molding. Further, as shown in FIG. 13, which is a cross-sectional view taken along the line GG of FIG. 5, the connector base 17 is molded and fixed so as to embrace the three outer peripheral sides of the connector base 17. Secure to.

特に、絶縁性樹脂材１９により配線基板１５やコネクタベース１７を強固にモールド固定できるので配線基板１５やコネクタベース１７は外力を受けて簡単に外れなくなる。例えば、コネクタベース１７に外部からソケット１２を着脱するような場合に、コネクタベース１７を配線基板１５から剥離させて上方へ持ち上げる剥離力、あるいは引っ張るなどの剥離力が働いても、コネクタベース１７の外周囲が絶縁性樹脂材１９によりモールド固定されているため配線基板１５及びベース１８から容易に外れ難くなり、断線不良等のおそれがなくなる。 In particular, since the wiring substrate 15 and the connector base 17 can be firmly fixed by the insulating resin material 19, the wiring substrate 15 and the connector base 17 cannot be easily detached by receiving an external force. For example, when the socket 12 is attached to and detached from the connector base 17 from the outside, even if a peeling force such as peeling the connector base 17 from the wiring board 15 and lifting it upward or pulling force is applied, the connector base 17 Since the outer periphery is fixed by the insulating resin material 19, it is difficult to be easily detached from the wiring substrate 15 and the base 18, and there is no fear of disconnection failure or the like.

ところで、このコネクタベース１７自体についても、高さ抑制機能を持たせて薄型化を図っている。まず、コネクタベース１７を配線基板１５に縦貫させた状態に取付けることにより、コネクタベース１７を若干沈み込ませた状態に取付けることができ、該コネクタベース１７の搭載高さを低くすることができる。また、コネクタベース１７の下面に対応するベース１８の上面にもコネクタベース嵌合用の凹部３５を形成しているため、ここに嵌合されるコネクタベース１７をさらに沈み込ませて、コネクタベース１７の搭載高さを一層低くして取付けることができる。 By the way, the connector base 17 itself is also made thin by providing a height suppressing function. First, by attaching the connector base 17 to the wiring board 15 in a vertically extending state, the connector base 17 can be attached in a slightly depressed state, and the mounting height of the connector base 17 can be reduced. In addition, since the concave portion 35 for fitting the connector base is also formed on the upper surface of the base 18 corresponding to the lower surface of the connector base 17, the connector base 17 to be fitted here is further submerged so that the connector base 17 The mounting height can be further reduced.

これにより、ベース１８上に封止される絶縁性樹脂材１９の上面高さと、コネクタベース１７の上面高さとの双方を低くして略同高さに揃えることができる。このため、金属球検知センサ１１の配線基板１５側の高さを抑えることができ、また外形状は長方体の平板状にできるため、上下方向を薄型化した金属球検知センサ１１が得られる。 Thereby, both the height of the upper surface of the insulating resin material 19 sealed on the base 18 and the height of the upper surface of the connector base 17 can be lowered to be substantially the same. For this reason, the height of the metal ball detection sensor 11 on the wiring board 15 side can be suppressed, and the outer shape can be a rectangular flat plate, so that the metal ball detection sensor 11 with a thin vertical direction can be obtained. .

さらに、コネクタベース１７の雄型のコネクタピン４１と、ソケット１２の雌型のコンタクト４２との凹凸対応させた接合に際しても薄型化を図るための工夫を施している。この配線接続部の薄型化に先立って、まずコネクタピン４１とコンタクト４２との接合構造について説明する。 Furthermore, a contrivance is made to reduce the thickness of the male connector pin 41 of the connector base 17 and the female contact 42 of the socket 12 in connection with the concave and convex portions. Prior to the thinning of the wiring connection portion, first, a joint structure between the connector pin 41 and the contact 42 will be described.

図１４は陽極と陰極との左右一対のコネクタピン４１に対応する左右一対のコンタクト４２との接合部分の拡大斜視図を示す。これらは左右対称の同じ構造を有するため片方(図中左側)についてのみ説明し、他方の説明は同じのため省略する。 FIG. 14 is an enlarged perspective view of a joint portion between the pair of left and right contacts 42 corresponding to the pair of left and right connector pins 41 of the anode and the cathode. Since these have the same symmetrical structure, only one side (left side in the figure) will be described, and the other description will be omitted because it is the same.

前記コネクタピン４１は導電性金属材により形成され、凹凸対応させる接合部の凸部として断面正方形の四角柱を有し、さらにこの四角柱の先端を面取りしてコンタクト４２側への円滑な挿入を図っている。
前記コンタクト４２は導電性金属材の壁板を折曲げて四角筒状に形成し、この四角筒状の軸方向の一側にピン接合部４３を有し、他側に同材質で連なる電線圧着部４４を有している。 The connector pin 41 is formed of a conductive metal material, and has a square column with a square cross section as a convex portion of the joint portion corresponding to the concave and convex portions. Further, the tip of the square column is chamfered to smoothly insert it into the contact 42 side. I am trying.
The contact 42 is formed by bending a wall plate made of a conductive metal material into a square tube shape, and has a pin joint 43 on one side in the axial direction of the square tube shape, and is connected to the other side by the same material. A portion 44 is provided.

図１５(Ａ)はコネクタピン４１とピン接合部４３との接合状態を表す要部縦断側面図を示し、図１５(Ｂ)はその要部縦断正面図を示している。
まず、ピン接合部４３は四角筒状に折曲げた上下左右の壁板４５，４６，４７，４８を有し、これらの壁板４５〜４８で囲まれる四角筒状の内部空間に対し、上壁板４５と下壁板４６の各中央部から内向きにＶ字形に突出させた弾性接触片４５ａ，４６ａを形成している。これらの上下に対向する弾性接触片４５ａ，４６ａ間がピン接合部４３の凹部として設けられ、ここに前記コネクタピン４１が挿入されて該コネクタピン４１が弾性接触片４５ａ，４６ａに上下より弾性接触して支持される。これにより、コネクタピン４１とピン接合部４３とは凹凸対応状態に安定して電気的に接合される。 FIG. 15 (A) shows a vertical cross-sectional side view of the main part representing the joined state of the connector pin 41 and the pin joint 43, and FIG. 15 (B) shows a front elevational view of the main part.
First, the pin joint portion 43 has upper, lower, left and right wall plates 45, 46, 47, and 48 that are bent into a rectangular tube shape. Elastic contact pieces 45a, 46a are formed inwardly projecting in a V shape from the central portions of the wall plate 45 and the lower wall plate 46, respectively. Between the elastic contact pieces 45a and 46a opposed to the upper and lower sides is provided as a concave portion of the pin joint portion 43, the connector pin 41 is inserted therein, and the connector pin 41 is in elastic contact with the elastic contact pieces 45a and 46a from the upper and lower sides. To be supported. Thereby, the connector pin 41 and the pin joint part 43 are stably electrically joined in a concavo-convex correspondence state.

前記電線圧着部４４は、コンタクト４２の軸方向の中央部に芯線圧着部４９を有し、該軸方向の端部に被覆部圧着部５０を有して構成される。
このうち、芯線圧着部４９は、電線５１の先端部から取り出された図示しない芯線を、一側壁４９ａと上下の圧着片４９ｂ，４９ｃとで形成されたコ形状の空間部に介在させた状態で上下の圧着片(図１４においては圧着後の折曲げ状態を示す)４９ｂ，４９ｃで包み込むように強固に圧着して、電線５１をコンタクト４２に配線接続している。 The wire crimping portion 44 has a core crimping portion 49 at the center in the axial direction of the contact 42 and a covering crimping portion 50 at an end in the axial direction.
Among these, the core wire crimping portion 49 is a state in which a core wire (not shown) taken out from the distal end portion of the electric wire 51 is interposed in a U-shaped space portion formed by one side wall 49a and upper and lower crimping pieces 49b and 49c. The electric wire 51 is wired to the contact 42 by being firmly crimped so as to be wrapped by upper and lower crimping pieces (bending state after crimping is shown in FIG. 14) 49b and 49c.

前記被覆部圧着部５０は、一側壁５０ａと上下の圧着片(図１４においては圧着後の折曲げ状態を示す)５０ｂ，５０ｃとで電線５１を挿通可能なコ形状の内部空間を形成し、ここに電線５１を挿通させた後、上下の圧着片５０ｂ，５０ｃで包み込むように強固に圧着して、電線５１をコンタクト４２に連結する。 The covering portion crimping portion 50 forms a U-shaped internal space through which the electric wire 51 can be inserted with the one side wall 50a and the upper and lower crimping pieces (shown in FIG. 14 showing the folded state after crimping) 50b, 50c. After the electric wire 51 is inserted here, the electric wire 51 is connected to the contact 42 by being firmly crimped so as to be wrapped by the upper and lower crimping pieces 50 b and 50 c.

このような接合構成を有する前記ピン接合部４３に対し、さらに薄型化を図るために、ピン接合部４３を構成する四角筒状の上下左右の壁板４５，４６，４７，４８の縦横の長さ比のうち、縦方向を短く横方向を長くした横長のピン接合部４３に形成している。また、電線圧着部４４側においても電線５１を絞り込むように圧着するので上下方向を十分に制限できる。 In order to further reduce the thickness of the pin joint portion 43 having such a joint configuration, the vertical and horizontal lengths of the square cylindrical upper, lower, left and right wall plates 45, 46, 47, and 48 constituting the pin joint portion 43 are as follows. Of the length ratios, the pin portion 43 is formed into a horizontally long pin joint 43 having a short vertical direction and a long horizontal direction. Moreover, since the crimping | compression-bonding is carried out so that the electric wire 51 may be narrowed also at the electric wire crimping part 44 side, an up-down direction can fully be restrict | limited.

さらに、ピン接合部４３を差し込んで支持するソケット１２側においても、縦横の長さ比のうち、縦方向を短く、横方向を長くして薄型に形成することができる。また、該ソケット１２が差し込まれるコネクタベース１７においても、縦横の長さ比のうち、縦方向を短く、横方向を長くして薄型に形成することができる。従って、ピン接合部４３の高さ寸法を短縮することに基づいてコネクタベース１７の高さを抑制することができる。この結果、該コネクタベース１７を薄型化でき、ひいては金属球検知センサ１１の薄型化につながる。また、コネクタベース１７側とソケット１２側との接続に際しては、何れか一方を雄型に、他方を雌型に設ければよい。 Further, the socket 12 side into which the pin joint portion 43 is inserted and supported can also be formed thin by shortening the vertical direction and lengthening the horizontal direction in the vertical / horizontal length ratio. Further, the connector base 17 into which the socket 12 is inserted can also be formed thin by shortening the vertical direction and lengthening the horizontal direction out of the vertical / horizontal length ratio. Therefore, the height of the connector base 17 can be suppressed based on shortening the height dimension of the pin joint portion 43. As a result, the connector base 17 can be reduced in thickness, leading to a reduction in the thickness of the metal ball detection sensor 11. Further, when connecting the connector base 17 side and the socket 12 side, either one may be provided in a male shape and the other in a female shape.

次に、金属球検知センサ１１の製造方法について説明する。
まず、コイルスプール１４と配線基板１５とを一体に連結してなる検知構成体１６を、凹状に形成されたベース１８の上面に搭載する。このとき、ベース１８の一側にはコイル巻線２０を巻いてなるコイルスプール１４が搭載され、ベース１８の他側には前記コイルスプール１４に巻かれたコイル巻線２０の両端を接続してなるセンサ回路を実装した配線基板１５が搭載される。 Next, a method for manufacturing the metal ball detection sensor 11 will be described.
First, the detection structure 16 formed by integrally connecting the coil spool 14 and the wiring board 15 is mounted on the upper surface of the base 18 formed in a concave shape. At this time, the coil spool 14 formed by winding the coil winding 20 is mounted on one side of the base 18, and both ends of the coil winding 20 wound on the coil spool 14 are connected to the other side of the base 18. A wiring board 15 on which a sensor circuit is mounted is mounted.

また、搭載時には、ベース貫通孔３０にコイルスプール１４の筒状に設けられた巻胴部２１の下部を嵌合させることにより、コイルスプール１４は正確に貫通孔２２との芯合せが行われてベース１８に搭載される。また、基板接続部２５の位置決め突部３２をベース１８の位置決め溝３１に嵌合させ、且つ該基板接続部２５のコ形部２６の下部をベース１８の凹型嵌合部３３に嵌合させることで、検知構成体１６をベース１８に正確に位置決めして搭載することができる。 Further, at the time of mounting, the coil spool 14 is accurately aligned with the through-hole 22 by fitting the lower portion of the winding drum portion 21 provided in the cylindrical shape of the coil spool 14 into the base through-hole 30. Mounted on the base 18. Further, the positioning protrusion 32 of the board connecting portion 25 is fitted into the positioning groove 31 of the base 18, and the lower portion of the U-shaped portion 26 of the board connecting portion 25 is fitted to the concave fitting portion 33 of the base 18. Thus, the detection component 16 can be accurately positioned and mounted on the base 18.

前記ベース１８に検知構成体１６を搭載した後、コイルスプール１４側の上面及び貫通孔２２周辺のベース１８の外側面を、シールドカバー１３で覆って仮固定した状態で、前記コイル巻線２０の外周面側に形成される環状隙間４０、及び配線基板１５の上方を絶縁性樹脂材１９によりモールド固定して平板状の長方体に封止することにより金属球検知センサ１１を単一の部品として一体的に設けることができる。 After the detection structure 16 is mounted on the base 18, the coil winding 20 is mounted in a state where the upper surface on the coil spool 14 side and the outer surface of the base 18 around the through hole 22 are covered with a shield cover 13 and temporarily fixed. An annular gap 40 formed on the outer peripheral surface side and the upper part of the wiring board 15 are molded and fixed with an insulating resin material 19 and sealed in a flat plate-like rectangular body, whereby the metal ball detection sensor 11 is a single component. Can be provided integrally.

このときの絶縁性樹脂材１９の充填方法としては内蔵部品に過剰なストレスを加えず、コイル巻線２０を変形させないように熱可塑性樹脂を用いた後述する低圧充填工法を使用すればよい。 As a filling method of the insulating resin material 19 at this time, a low-pressure filling method described later using a thermoplastic resin may be used so that excessive stress is not applied to the built-in component and the coil winding 20 is not deformed.

前記絶縁性樹脂材１９の充填時に、該絶縁性樹脂材１９がコイル巻線２０の線間に侵入すると、コイル巻線２０の線間に誘電率の高い材料が存在することになり、コイル巻線２０の線間容量が増すことになる。このために、金属球検知センサ１１の検出デバイスとなるコイル巻線２０の感度が低下する。もしくは、製造工程の環境条件によって絶縁性樹脂材１９の浸入度合いがばらつき、検出性能そのものをばらつかせる（検出距離性能がばらつく）といったことが想定されることから、コイル巻線２０の線間に充填された絶縁性樹脂材１９が浸入しない条件が好ましい。これを実現するための条件としては、充填時もしくは低圧成型時の樹脂粘度が、充填される全域へ行き渡り、しかも樹脂粘度が高いことが必要である。例えば、溶解粘度２０００Ｐａ／Ｓ以上の熱可塑性樹脂が好ましい。 If the insulating resin material 19 enters between the coil windings 20 when the insulating resin material 19 is filled, a material having a high dielectric constant exists between the coil windings 20 and the coil windings. The line-to-line capacity of the line 20 is increased. For this reason, the sensitivity of the coil winding 20 which becomes a detection device of the metal ball detection sensor 11 is lowered. Alternatively, the degree of penetration of the insulating resin material 19 varies depending on the environmental conditions of the manufacturing process, and it is assumed that the detection performance itself varies (the detection distance performance varies). The condition where the filled insulating resin material 19 does not enter is preferable. As conditions for realizing this, it is necessary that the resin viscosity at the time of filling or low-pressure molding spreads over the whole area to be filled and the resin viscosity is high. For example, a thermoplastic resin having a dissolution viscosity of 2000 Pa / S or more is preferable.

また、成型圧力についてもコイル巻線２０の線間に浸透しないように成型圧力を加えないことが好ましく、具体的には２ＭＰａ以下という低圧の成型もしくは充填のみで製造する低圧充填工法が適している。 Further, it is preferable not to apply the molding pressure so that the molding pressure does not penetrate between the windings of the coil winding 20, and specifically, a low pressure filling method of manufacturing only by low pressure molding or filling of 2 MPa or less is suitable. .

この結果、コイル巻線２０に絶縁性樹脂材１９を接触させることは避けられないが、検出感度の低下・検出性能の製造ばらつき等が最小限に抑えられ、コイル巻線２０部分での絶縁性樹脂材１９による剛性強化、薄型化を実現できる。さらに、粘度の高い樹脂を充填する場合、配線基板１５に実装された電子部品１５ａと配線基板１５の隙間に絶縁性樹脂材１９が浸入せず、充填した絶縁性樹脂材１９の膨張・収縮によって電子部品１５ａが剥離するおそれも解消できる。 As a result, it is inevitable that the insulating resin material 19 is brought into contact with the coil winding 20, but a decrease in detection sensitivity, manufacturing variations in detection performance, etc. are minimized, and insulation at the coil winding 20 portion is suppressed. Rigidity enhancement and thinning by the resin material 19 can be realized. Furthermore, when filling a resin with high viscosity, the insulating resin material 19 does not enter the gap between the electronic component 15 a mounted on the wiring board 15 and the wiring board 15, and expansion and contraction of the filled insulating resin material 19 The possibility that the electronic component 15a is peeled off can also be eliminated.

このような製造方法によれば、仮組立後に絶縁性樹脂材１９を充填するだけなので金属球検知センサ１１を簡単に製造することができ、且つ絶縁性樹脂材１９の介在により配線基板１５やコイル巻線２０を気密に保護する安定した成形ができる。 According to such a manufacturing method, since the insulating resin material 19 is only filled after temporary assembly, the metal ball detection sensor 11 can be easily manufactured, and the wiring substrate 15 and the coil are interposed by the insulating resin material 19 interposed. Stable molding can be performed to hermetically protect the winding 20.

また、モールド工程で絶縁性樹脂材１９に接する各部材は一体に固定されるため部材間の連結性を高めることができる。さらに、絶縁性樹脂材１９を成形用の金型内に充填することによって、金属球検知センサ１１の上面高さを平板状の同一の平面高さに容易に揃えて所望の形状に成形することができる。このため、金属球検知センサ１１の検知開始位置となる上面高さを精度良く製造することができ、上面からコイル巻線２０までの上下の距離が正確となり、コイル巻線２０の検知特性を安定させて検知時のばらつきを抑えることができる。このため、金属球検知センサ１１のセンサ性能の向上を図ることができる。 Moreover, since each member which contact | connects the insulating resin material 19 at a molding process is fixed integrally, the connectivity between members can be improved. Further, by filling the insulating resin material 19 in a molding die, the upper surface height of the metal ball detection sensor 11 can be easily aligned to the same flat surface height and molded into a desired shape. Can do. For this reason, it is possible to accurately manufacture the height of the upper surface serving as the detection start position of the metal ball detection sensor 11, the vertical distance from the upper surface to the coil winding 20 is accurate, and the detection characteristics of the coil winding 20 are stabilized. Variation in detection can be suppressed. For this reason, the sensor performance of the metal ball detection sensor 11 can be improved.

次に、このように製造された金属球検知センサ１１の使用状態について説明する。
金属球検知センサ１１のコネクタベース１７にソケット１２が差し込まれ、該金属球検知センサ１１に電源が供給されると、コイル巻線２０が励磁され、その内側の貫通孔２２に向けて磁束を発生させる。これにより、金属球検知センサ１１は球Ｐの通過を検知する検知待機状態になる。この検知待機状態で、今、図２に示すように、この金属球検知センサ１１の貫通孔２２に上方から下方に向けて球Ｐが通過するとき、球Ｐが貫通孔２２の上面に到達した時点でコイル巻線２０の磁束が乱れ始め、これに基づいてセンサ回路側で検知動作を開始する。そして、球Ｐが貫通孔２２を通過した時点で磁束の乱れは元の整然とした検知待機状態に戻り、球１個の検知が終了する。 Next, the use state of the metal ball detection sensor 11 manufactured in this way will be described.
When the socket 12 is inserted into the connector base 17 of the metal ball detection sensor 11 and power is supplied to the metal ball detection sensor 11, the coil winding 20 is excited and generates a magnetic flux toward the inner through hole 22. Let Thereby, the metal ball detection sensor 11 enters a detection standby state in which the passage of the ball P is detected. In this detection standby state, as shown in FIG. 2, when the sphere P passes through the through hole 22 of the metal ball detection sensor 11 from above to below, the sphere P reaches the upper surface of the through hole 22. At that time, the magnetic flux of the coil winding 20 starts to be disturbed, and based on this, the detection operation is started on the sensor circuit side. Then, when the sphere P passes through the through hole 22, the magnetic flux disturbance returns to the original orderly detection standby state, and the detection of one sphere is completed.

このとき、コイル巻線２０側からは配線基板１５側の図示しない発振回路、検波回路及び出力回路等からなるセンサ回路へと導かれ、これよりソケット１２を介して球検知信号が図示しない制御部に出力され、球Ｐ１個が通過されたことを確認する。また、通過する球Ｐが帯電している際は、シールドカバー１３や絶縁性樹脂材１９によってコイル巻線２０側に向かう静電気を遮断するため、コイル巻線２０及び配線基板１５に対しては静電気による悪影響をきたすことはない。このような検知動作が球Ｐの通過ごとに繰返され、球通過の有無及び、ここを通過した球の計数値が求められる。 At this time, the coil winding 20 side is led to a sensor circuit including an oscillation circuit, a detection circuit, and an output circuit (not shown) on the wiring board 15 side. To confirm that one sphere P has passed. Further, when the passing ball P is charged, the shield cover 13 and the insulating resin material 19 block the static electricity toward the coil winding 20, so that the coil winding 20 and the wiring substrate 15 are static. Will not cause any negative effects. Such detection operation is repeated for each passage of the sphere P, and the presence / absence of the passage of the sphere and the count value of the sphere that has passed through the passage are obtained.

このように、金属球検知センサ１１はコイル巻線２０の外部の上面側に、シールドカバー１３を上ケース及び磁気シールドを兼ねた外殻部材として配設することにより、内部のコイル巻線２０を外部の静電気から保護することができる。また、シールドカバー１３に対しては放電構造を省略することができる。 As described above, the metal ball detection sensor 11 is arranged on the outer upper surface side of the coil winding 20 by arranging the shield cover 13 as an outer shell member that also serves as an upper case and a magnetic shield, thereby allowing the inner coil winding 20 to be connected. Can be protected from external static electricity. Further, the discharge structure can be omitted for the shield cover 13.

さらに、絶縁性樹脂材１９を用いて金属球検知センサ１１をモールド固定するため、金属球検知センサ１１はシールドカバー１３側と配線基板１５側との隣接する接続部間を絶縁分離することができる。このため、金属球検知センサ１１は絶縁性樹脂材１９が、配線基板１５側のセンサ回路に対する静電気防止部材として機能し、該センサ回路に静電気が侵入（電気的ノイズ）するのを解消する信頼性の高い静電気対策が得られる。 Furthermore, since the metal ball detection sensor 11 is molded and fixed using the insulating resin material 19, the metal ball detection sensor 11 can insulate and separate the adjacent connection portions on the shield cover 13 side and the wiring board 15 side. . For this reason, in the metal ball detection sensor 11, the insulating resin material 19 functions as an antistatic member for the sensor circuit on the wiring board 15 side, and reliability that eliminates intrusion of static electricity (electric noise) into the sensor circuit. High anti-static measures can be obtained.

さらに、金属球検知センサ１１の薄型化に際しても、コイル巻線２０側にあっては、外部の球が流入する上面側をシールドカバー１３で覆うだけでシールド機能が得られるため、ケースを兼ねたシールドカバー１３を設けるだけでコイル巻線２０側を薄型化できる。また、配線基板１５側にあっては、その上面全体を絶縁性樹脂材１９を用いてケースの代わりに兼用できるため、ケースを省略して配線基板１５側の薄型化を実現することができる。 Further, when the metal ball detection sensor 11 is thinned, the coil winding 20 side also serves as a case because the shield function can be obtained simply by covering the upper surface side into which the external sphere flows with the shield cover 13. The coil winding 20 side can be thinned only by providing the shield cover 13. On the wiring board 15 side, since the entire upper surface can be used in place of the case using the insulating resin material 19, the case can be omitted and the wiring board 15 side can be thinned.

［参考例］
この金属球検知センサ１６１は、第１実施例の金属球検知センサ１１と比較して、ベース１８全体を覆うシールドカバー１６２を用いる点と、絶縁性樹脂材１９をコイル巻線２０側だけに用いて、配線基板１５側には用いない点が異なるだけで、他の構成は同じであるため、同一の構成については同一の符号を用いて、その説明を省略する。 [Reference example]
Compared with the metal ball detection sensor 11 of the first embodiment, this metal ball detection sensor 161 uses a shield cover 162 that covers the entire base 18 and uses the insulating resin material 19 only on the coil winding 20 side. Since the other configurations are the same except that they are not used on the wiring board 15 side, the same reference numerals are used for the same configurations, and descriptions thereof are omitted.

図１６は金属球検知センサ１６１裏側の外観斜視図、図１７は金属球検知センサ１６１の裏側を斜め上方から見た分解斜視図、図１８は金属球検知センサ１６１の裏側を斜め下方から見た分解斜視図を示す。 16 is an external perspective view of the back side of the metal ball detection sensor 161, FIG. 17 is an exploded perspective view of the back side of the metal ball detection sensor 161 as viewed obliquely from above, and FIG. 18 is a view of the back side of the metal ball detection sensor 161 as viewed from diagonally below. An exploded perspective view is shown.

以下の参考例においても使用状態で記載すると、シールドカバーや部品搭載面側が下面になって搭載部品が見えなくなってしまうことから下面側を上面として説明する。金属球検知センサ１６１は、金属球の通過によりシールドカバーが変形しにくいように、シールドカバーや電子部品の搭載面側を下面にして使用する方が望ましい。 Even in the following reference examples , when described in use, the shield cover and the component mounting surface side become the lower surface, and the mounted component becomes invisible, so the lower surface side will be described as the upper surface. It is desirable to use the metal ball detection sensor 161 with the mounting surface side of the shield cover or electronic component as the lower surface so that the shield cover is not easily deformed by the passage of the metal ball.

前記シールドカバー１６２は、相互干渉や周囲金属の影響を抑制するのに適した銅材などの導電性を有する金属板で構成され、下面及び一側面を開放した箱形状を有している。そして、このシールドカバー１６２の上面中央部に貫通孔２２より少し大径のカバー貫通孔３８を開口し、該カバー貫通孔３８が前記貫通孔２２と対応し、ベース１８の下面及び前記貫通孔２２の内周面を除く、ベース上方の外周囲全体を該１枚のシールドカバー１６２により被覆する構成としている。このときのシールドカバー１６２とベース１８との連結構造は、シールドカバー１６２の両側面に２個一対に開口した係合口１６３を有し、これらの係合口１６３をベース１８の両側面に突設した小さな係合突起１６４に係合させて一体に連結する。 The shield cover 162 is made of a conductive metal plate such as a copper material suitable for suppressing mutual interference and the influence of surrounding metals, and has a box shape with an open lower surface and one side surface. A cover through hole 38 having a diameter slightly larger than the through hole 22 is opened at the center of the upper surface of the shield cover 162. The cover through hole 38 corresponds to the through hole 22, and the lower surface of the base 18 and the through hole 22. The entire outer periphery above the base except the inner peripheral surface is covered with the single shield cover 162. The connection structure of the shield cover 162 and the base 18 at this time has two engagement holes 163 that are opened in pairs on both side surfaces of the shield cover 162, and these engagement ports 163 project from both side surfaces of the base 18. The small engagement protrusions 164 are engaged and connected together.

このシールドカバー１６２を設けた場合は、ベース１８に搭載した搭載部品の全体を外部からの静電気より保護することができる。また、絶縁性樹脂材１９を省略することができる構成となるほか、該シールドカバー１６２を金属球検知センサ１６１の上面カバーに兼用させることができるため部品点数を削減することができる。 When this shield cover 162 is provided, the entire mounted component mounted on the base 18 can be protected from static electricity from the outside. In addition, the insulating resin material 19 can be omitted, and the shield cover 162 can also be used as the upper surface cover of the metal ball detection sensor 161, so that the number of parts can be reduced.

［第２実施例］
この金属球検知センサ１９１は、第１実施例の金属球検知センサ１１と比較して、モールド固定強化用の連結促進孔１９２を多数穿孔した多孔型シールドカバー１９３を設けた点が異なるだけで、他の構成は同じであるため、同一の構成については同一の符号を用いて、その説明を省略する。 [Second Embodiment]
This metal sphere detection sensor 191 is different from the metal sphere detection sensor 11 of the first embodiment only in that a porous shield cover 193 in which a large number of connection promoting holes 192 for reinforcing mold fixation are provided is provided. Since other configurations are the same, the same reference numerals are used for the same configurations, and descriptions thereof are omitted.

図１９は金属球検知センサ１９１裏側の外観斜視図、図２０は金属球検知センサ１９１の裏側を斜め上方から見た分解斜視図、図２１は金属球検知センサ１９１の裏側を斜め下方から見た分解斜視図、図２２は金属球検知センサ１９１裏側の多孔型シールドカバー取付け時の要部拡大平面図、図２３は連結促進孔１９２に絶縁性樹脂材１９が充填された状態を示す要部拡大縦断面図を示す。 19 is an external perspective view of the back side of the metal ball detection sensor 191. FIG. 20 is an exploded perspective view of the back side of the metal ball detection sensor 191 as viewed obliquely from above. FIG. 21 is a view of the back side of the metal ball detection sensor 191 as viewed from diagonally below. 22 is an exploded perspective view, FIG. 22 is an enlarged plan view of the main part when the porous shield cover on the back side of the metal ball detection sensor 191 is attached, and FIG. 23 is an enlarged main part showing a state where the insulating resin material 19 is filled in the connection promoting hole 192. A longitudinal sectional view is shown.

前記多孔型シールドカバー１９３は、小さな連結促進孔１９２をシールドカバーの上面全体に渡って多数設けることにより、モールド固定時に充填される絶縁性樹脂材１９が各連結促進孔１９２に行き渡り、この結果、多孔型シールドカバー１９３は絶縁性樹脂材１９を介してコイルスプール１４及びベース１８に強固に連結して固定される。また、連結促進孔１９２のほかに、連結促進用に切欠いた切欠き部などを形成して設けることもできる。 The porous shield cover 193 is provided with a large number of small connection promotion holes 192 over the entire upper surface of the shield cover, so that the insulating resin material 19 filled at the time of mold fixing spreads to each connection promotion hole 192. The porous shield cover 193 is firmly connected and fixed to the coil spool 14 and the base 18 through the insulating resin material 19. Further, in addition to the connection promotion hole 192, a notch portion that is notched for connection promotion can be formed.

前記第１〜第２実施例の金属球検知センサ１１，１６１，１９１をパチンコ機に取付ける際、該金属球検知センサ１１，１６１，１９１の何れか１つをホルダ（図示省略）により一体化して保持し、該ホルダを、パチンコ機の遊技盤面の入賞口に相当する金属球通過位置にビス止めして取付ければよい。 When the metal ball detection sensors 11, 161, 191 of the first to second embodiments are attached to the pachinko machine, any one of the metal ball detection sensors 11, 161, 191 is integrated by a holder (not shown). The holder may be attached to the metal ball passing position corresponding to the winning opening on the game board surface of the pachinko machine by screwing.

前記遊技盤面に取付けられるホルダはセンサ保持機能に加えて、該ホルダについても静電気対策を施したセンサ保護機能を加えることができる。例えば、第１実施例の場合、前記ホルダ自体の外表面に、前記金属球検知センサ１１のシールドカバー１３と接触する導電性金属層（メッキ処理等）を形成し、該導電性金属層の一部に接触して、グランドに接続された静電気逃し用のリード線を接続すればよい。これにより、金属球通過位置からの静電気対策として備えられているシールドカバー１３によって、内部のセンサ回路部を静電気から保護できるだけでなく、金属球検知センサ１１の全体を覆うホルダからも静電気を分散させたり、静電気をグランドへと逃すという静電気対策を施すことができる。 In addition to the sensor holding function, the holder attached to the game board surface can also be provided with a sensor protection function with countermeasures against static electricity. For example, in the case of the first embodiment, a conductive metal layer (plating process or the like) that contacts the shield cover 13 of the metal ball detection sensor 11 is formed on the outer surface of the holder itself. The lead wire for discharging static electricity connected to the ground may be connected in contact with the portion. As a result, the shield cover 13 provided as a countermeasure against static electricity from the metal ball passage position not only protects the internal sensor circuit portion from static electricity but also disperses static electricity from the holder covering the entire metal ball detection sensor 11. Or take measures against static electricity by letting static electricity escape to the ground.

また、前記金属球検知センサ１１は主にパチンコ機の入賞口に使用されることから、該金属球検知センサ１１のセンサ回路部を改造して、多く入賞したように誤入賞信号を出力させるセンサ回路部の改造が行われるおそれがある。このような改造が行われたことを外観上で容易に発見できることが望まれている。 Further, since the metal ball detection sensor 11 is mainly used for a winning opening of a pachinko machine, a sensor circuit unit of the metal ball detection sensor 11 is modified to output an erroneous winning signal as if a lot of winnings are made. There is a risk of modification of the circuit. It is desired that such a modification can be easily found on the appearance.

それゆえ、内部のセンサ回路部の改造防止手段として、前記金属球検知センサ１１のセンサ回路部を平板状にモールド固定して覆っている絶縁性樹脂材１９の外表面に、製造日・場所などを表す文字や記号等による製品情報の印字（マーキング）を施すのが適している。これにより、センサ回路部の改造を試みようとしても、絶縁性樹脂材１９が変形したり、印字も乱れたりするため一目で不正がなされたか否かを確認することができる。具体的には、絶縁性樹脂材１９を剥がし、その後、絶縁性樹脂材１９によるモールドの再現と、同じフォントによるマーキングの再現との２重の再現が必要になり、不正防止力（セキュリティ性）が高まる。さらに、この絶縁性樹脂材１９を透明の絶縁性樹脂材にて形成すれば、正規の電子部品の配置や形状の適否を外観から一目で確認できる。 Therefore, as a means for preventing modification of the internal sensor circuit portion, the manufacturing date, place, etc. are provided on the outer surface of the insulating resin material 19 that covers the sensor circuit portion of the metal ball detection sensor 11 by being fixed in a flat plate shape. It is suitable to print (marking) product information with characters or symbols representing. As a result, even if an attempt is made to remodel the sensor circuit section, the insulating resin material 19 is deformed or the printing is disturbed, so it is possible to confirm whether or not fraud has been made at a glance. Specifically, the insulating resin material 19 is peeled off, and then a double reproduction of the mold reproduction by the insulating resin material 19 and the marking reproduction by the same font is necessary, and the anti-fraud power (security) Will increase. Furthermore, if this insulating resin material 19 is formed of a transparent insulating resin material, it is possible to confirm at a glance whether the proper arrangement and shape of the regular electronic parts are appropriate.

この発明の構成と、上述の一実施例の構成との対応において、上述の実施例のみに限定されるものではなく、請求項に記載された技術思想に基づいて応用することができる。 The correspondence between the configuration of the present invention and the configuration of the above-described embodiment is not limited to the above-described embodiment, and can be applied based on the technical idea described in the claims.

例えば、前記実施例では貫通型の金属球検知センサを用いて球の通過を検知するものを示したが、これに限らず、球通路にセンサ部を近接させて球の通過を検知する近接センサに適用してもよい。 For example, in the above-described embodiment, the through-type metal ball detection sensor is used to detect the passage of the sphere. However, the present invention is not limited to this, and the proximity sensor that detects the passage of the sphere by bringing the sensor portion close to the ball passage. You may apply to.

第１実施例の金属球検知センサの裏側を示す外観斜視図。The external appearance perspective view which shows the back side of the metal ball | bowl detection sensor of 1st Example. 第１実施例の金属球検知センサの使用状態を示す外観斜視図。The external appearance perspective view which shows the use condition of the metal ball | bowl detection sensor of 1st Example. 第１実施例の金属球検知センサの裏側を斜め上方から見た分解斜視図。The disassembled perspective view which looked at the back side of the metal ball detection sensor of 1st Example from diagonally upward. 第１実施例の金属球検知センサの裏側を斜め下方から見た分解斜視図。The disassembled perspective view which looked at the back side of the metal ball detection sensor of 1st Example from diagonally downward. 第１実施例の金属球検知センサの裏側を示す平面図。The top view which shows the back side of the metal ball | bowl detection sensor of 1st Example. 第１実施例の金属球検知センサのコネクタベース側を示す側面図。The side view which shows the connector base side of the metal ball | bowl detection sensor of 1st Example. 第１実施例の図５のＡ−Ａ線矢視断面図。FIG. 6 is a cross-sectional view taken along line AA in FIG. 5 of the first embodiment. 第１実施例の図５のＢ−Ｂ線矢視断面図。FIG. 6 is a cross-sectional view taken along line BB in FIG. 5 of the first embodiment. 第１実施例の図５のＣ−Ｃ線矢視断面図。CC sectional view taken on the line C-C in FIG. 5 of the first embodiment. 第１実施例の図５のＤ−Ｄ線矢視断面図。The DD sectional view taken on the line in FIG. 5 of the first embodiment. 第１実施例の図５のＥ−Ｅ線矢視断面図。FIG. 6 is a cross-sectional view taken along line EE in FIG. 5 of the first embodiment. 第１実施例の図５のＦ−Ｆ線矢視断面図。FIG. 6 is a sectional view taken along line FF in FIG. 5 of the first embodiment. 第１実施例の図５のＧ−Ｇ線矢視断面図。FIG. 6 is a cross-sectional view taken along line GG in FIG. 5 of the first embodiment. 第１実施例のコネクタピンとコンタクトとの接合状態を示す拡大斜視図。The expansion perspective view which shows the joining state of the connector pin and contact of 1st Example. 第１実施例のコネクタピンとピン接合部との接合状態を示す要部縦断面図。The principal part longitudinal cross-sectional view which shows the joining state of the connector pin of 1st Example, and a pin junction part. 参考例の金属球検知センサの裏側を示す外観斜視図。 The external appearance perspective view which shows the back side of the metal ball detection sensor of a reference example . 参考例の金属球検知センサの裏側を斜め上方から見た分解斜視図。 The disassembled perspective view which looked at the back side of the metal ball detection sensor of a reference example from diagonally upward. 参考例の金属球検知センサの裏側を斜め下方から見た分解斜視図。 The disassembled perspective view which looked at the back side of the metal ball detection sensor of a reference example from diagonally downward. 第２実施例の金属球検知センサの裏側を示す外観斜視図。 The external appearance perspective view which shows the back side of the metal ball | bowl detection sensor of 2nd Example . 第２実施例の金属球検知センサの裏側を斜め上方から見た分解斜視図。 The disassembled perspective view which looked at the back side of the metal ball detection sensor of 2nd Example from diagonally upward. 第２実施例の金属球検知センサの裏側を斜め下方から見た分解斜視図。 The disassembled perspective view which looked at the back side of the metal ball detection sensor of 2nd Example from diagonally downward. 第２実施例の金属球検知センサ裏側の多孔型シールドカバーの取付け状態を示す拡大平面図。 The enlarged plan view which shows the attachment state of the porous shield cover of the metal ball | bowl detection sensor back side of 2nd Example . 第２実施例の金属球検知センサ裏側の連結促進孔に絶縁性樹脂材が充填された状態を示す要部拡大縦断面図。 The principal part expansion longitudinal cross-sectional view which shows the state by which the insulating resin material was filled in the connection promotion hole of the metal ball | bowl detection sensor back side of 2nd Example .

１１，１６１，１９１…金属球検知センサ
４１…コネクタピン
４２…コンタクト
１５…配線基板
１７…コネクタベース
１９…絶縁性樹脂材
２９…切欠き開口部
DESCRIPTION OF SYMBOLS 11,161,191 ... Metal ball detection sensor 41 ... Connector pin 42 ... Contact 15 ... Wiring board 17 ... Connector base 19 ... Insulating resin material 29 ... Notch opening

Claims

On the upper surface of the opened rectangular parallelepiped, a wiring board having a sensor part for detecting the passage of the metal sphere on one side and a sensor circuit connected to the sensor part on the other side, and the wiring board electrically a metal ball detection sensor having a base equipped with a connector base provided in hardwired,
A male or female connector part disposed on one side of the connector base on the open end side for wiring connection, and a socket connected to the connector part so as to be detachable from the outside corresponding to the unevenness of the connector part of at least the female recess shape of the male or female contacts, among the length ratio of the vertical and horizontal, vertical short, Ri greens and a laterally long and oblong uneven corresponding shape,
The connector base has a box shape with an open bottom surface, and is fixed by fitting a lower portion into the connector base fitting recess provided on the top surface of the base,
Wherein a opened upper face of the base, the mold fixed <br/> metal ball detecting sensor the outer periphery of said connector base mounting surface encloses an insulating resin material.

A notch opening is provided at an end of the wiring board on which the connector base is mounted,
The connector base is attached in a state where the outer peripheral three side surfaces are held in the notch opening and vertically penetrated to the wiring board.
The metal ball detection sensor according to claim 1.

The upper surface side of the sensor unit includes a conductive outer shell member attached to the base in a state of covering the three outer peripheral sides of the sensor unit,
On one open side surface of the outer shell member, a connecting piece with a mold resin having an extended edge is provided to extend.
The metal ball detection sensor according to claim 1 or 2.