JPH0579918U - Small coil - Google Patents

Abstract

(57)【要約】 【目的】 樹脂容器に一体に設けた端子と、容器に収納
したコイルの巻線端部との接続を容易にする。 【構成】 方形厚板の樹脂容器の表面にコイル収納凹部
２がある。片端に短い腕のある２本のＬ字状短冊形端子
４が腕の方を厚板に面を樹脂容器の面に平行に一体に埋
めて一側面から突出させてある。コイル収納凹部２から
側面に到る導出溝６を底で端子が露出する深さに形成す
る。容器の底面には短冊端子の腕の付け根を中心とする
個所に電極挿入丸孔７を樹脂容器の底に端子を露出させ
て形成する。小型のトロイダルコイルの巻線端部９を導
出溝６の長さとほぼ同じにして延ばし、トロイダルコイ
ルをコイル収納凹部２に入れ、巻線端部９を導出溝６に
入れる。２本の抵抗溶接用丸棒負電極を丸孔に下方から
入れて容器を保持しながら、導出溝に板正電極を入れて
巻線端部を端子露出面に当接し通電し接続する。 (57) [Summary] [Purpose] To facilitate the connection between the terminal integrally provided in the resin container and the winding end of the coil housed in the container. [Structure] A coil housing recess 2 is provided on the surface of a rectangular thick resin container. Two L-shaped strip-shaped terminals 4 each having a short arm on one end are integrally formed by embedding the arm in a thick plate with the surface parallel to the surface of the resin container and projecting from one side surface. The lead-out groove 6 extending from the coil housing recess 2 to the side surface is formed to a depth at which the terminal is exposed at the bottom. On the bottom surface of the container, an electrode insertion round hole 7 is formed at a location centered on the base of the arm of the strip terminal, exposing the terminal on the bottom of the resin container. The winding end portion 9 of the small toroidal coil is extended to be approximately the same as the length of the lead-out groove 6, the toroidal coil is placed in the coil housing recess 2, and the winding end portion 9 is placed in the lead-out groove 6. While holding the container by inserting the two negative electrodes for resistance welding round rods into the round holes from below, the plate positive electrodes are placed in the lead-out grooves, and the winding ends are brought into contact with the exposed surface of the terminals to be electrically connected.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、電磁障害を防止するデータラインフィルタ用の小型コイルの構造に 関するものである。 The present invention relates to a structure of a small coil for a data line filter that prevents electromagnetic interference.

【０００２】[0002]

【従来の技術】[Prior Art]

小型の、例えば巻回上がり寸法が外径４．５ｍｍ、内径２．５ｍｍ、高さ１． ５ｍｍ程度のトロイダルチョークコイル（以下コイルと称す）が信号線における 電磁障害を防止するデータラインフィルタとして使われている。トロイダルコイ ルに巻線を施した巻線型チョークコイルを基板に装着できるようにした小型コイ ルは、ピン端子付の樹脂容器にコイルを収納して巻線端部をピン端子の根元にか らげて半田付により接続した構造であった。 樹脂容器は、方形厚板状であり、中心にコイルを位置決めするための位置決め円 柱のある円形収納凹部を表面に形成し、２本のピン端子を一側面から突出させて 一体に設け、収納凹部から一側面に達する２個の導出溝を表面に形成したもので あった。 Small size, for example, roll-up dimension is 4.5 mm outer diameter, 2.5 mm inner diameter, height 1. A toroidal choke coil of about 5 mm (hereinafter referred to as coil) is used as a data line filter to prevent electromagnetic interference in signal lines. A small coil with a toroidal coil with a wire wound type choke coil that can be mounted on the board is housed in a resin container with pin terminals and the winding ends are placed at the base of the pin terminals. It was a structure that was connected by soldering. The resin container is in the shape of a rectangular thick plate, and has a circular storage recess with a positioning cylinder for positioning the coil in the center, and two pin terminals are integrally provided by projecting from one side surface. Two lead-out grooves extending from the recess to one side surface were formed on the surface.

【０００３】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

ピン端子の長さが、小型コイルを自動装置機で処理できる部品連にするために 、例えば３０ｍｍ程も長いので、巻線端部をピン端子の根元にからげる作業は、 難しい手作業であり、所要時間が長くなるという問題があった。 Since the length of the pin terminal is as long as about 30 mm in order to make a small coil into a series of parts that can be processed by an automatic machine, it is difficult to twist the winding end part to the root of the pin terminal by a difficult manual work. There was a problem that the required time was long.

【０００４】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

からげ作業を自動化することは難しいので、からげなしで巻線端部を端子に接 続する小型コイルの構造にする。本考案の小型コイルの構造は、表面にコイル収 納凹部を形成した厚板状樹脂容器に側面から突出させて一体に埋設してある端子 が容器の表面と平行な短冊形であり、収納凹部から側面に到る導出溝の底に端子 の一部が面状に露出され、容器の底面に電極挿入孔が底にそれぞれの端子の一部 を面状に露出させて形成されており、巻線端部を導出溝の端子露出面に抵抗溶接 により接続した小型コイルとすることを特徴とする。 即ち本考案は、樹脂材からなる厚板の表面に複数個の端子を側面から突出させて 一体に埋設し形成したコイル収納凹部から、側面に到る導出溝を端子の近傍に形 成した樹脂容器に、巻線型コイルを収納して巻線端部を端子に接続してなる小型 コイルにおいて、樹脂容器の表面と平行な短冊形の端子の一部を導出溝の底の面 に平行に面状に露出させ、樹脂容器の底面に前記露出する端子の面に達する電極 挿入孔が孔底にそれぞれの端子の一部を面状に露出させて形成され、巻線端部を 導出溝の端子露出面に抵抗溶接により接続してなることを特徴とする小型コイル である。 Since it is difficult to automate the tangling work, we will use a small coil structure that connects the winding ends to the terminals without tangling. The structure of the small coil of the present invention is a strip-shaped resin container in which a terminal is embedded in a thick plate-shaped resin container having a coil storage recess formed on the surface so as to project from the side surface and is parallel to the surface of the container. Part of the terminal is exposed in a planar shape at the bottom of the lead-out groove extending from the side to the side, and an electrode insertion hole is formed in the bottom of the container so that a part of each terminal is exposed in a planar shape. The feature is that a small coil is formed by connecting the wire end to the terminal exposed surface of the lead-out groove by resistance welding. That is, the present invention is a resin plate in which a plurality of terminals are formed by embedding a plurality of terminals on the surface of a thick plate made of a resin material so as to be integrally embedded, and a lead-out groove reaching the side surface is formed near the terminals. In a small coil in which a wire-wound coil is housed in a container and the ends of the wire are connected to terminals, a part of the strip-shaped terminal parallel to the surface of the resin container is placed parallel to the bottom surface of the lead-out groove. Electrode holes that are exposed in a circular shape and reach the surface of the exposed terminals on the bottom surface of the resin container are formed by exposing a part of each terminal in a planar shape at the bottom of the hole. This is a small coil that is connected to the exposed surface by resistance welding.

【０００５】[0005]

【作用】[Action]

導出溝の端子露出面は、抵抗溶接による巻線端部との接続を実現し確実にする 。電極挿入孔は、溶接負電極がコイルを収納した樹脂容器を支持して端子に当接 し、溶接正電極の端子圧接と通電を実現するように働く。 The exposed surface of the terminal of the lead-out groove ensures connection by resistance welding to the winding end. The electrode insertion hole functions so that the welding negative electrode supports the resin container containing the coil and abuts on the terminal to realize pressure contact and energization of the welding positive electrode.

【０００６】[0006]

【実施例】【Example】

本考案の一実施例を、図面を参照して説明する。図１（ａ）は本考案による小 型コイルの外観図であり、方形厚板状の樹脂容器１（以下容器と称す）の表面に 片方（図で左側奥）の側面に片寄せて円形のコイル収納凹部２を形成してあり、 収納凹部２の中心に収納凹部２の深さより若干小さい高さのコイル位置決め円柱 ３がある。収納凹部２から最も離れた側面（図で右側手前）から２個の短冊形端 子４（以下端子と称す）が、その面を表面と平行にして所定の間隔をおいて突出 されて容器１に一体に埋設形成されている。容器１に埋設されている図示しない 端部は、端子４間の間隔の半分より十分に短い後述する図１（ｂ）に示す長さの 腕５をもつＬ形であり、腕５が向き合うように配置されている。容器１の表面に は、さらに導出溝６の２個を収納凹部２から端子４のある側面に向かって形成し てある。導出溝６は、その外側内壁の下部辺が端子４の内側上方稜と合致する個 所および深さに形成されている。 図１（ｂ）は図１（ａ）のＡ−Ａ線縦断面図である。導出溝６は、図示したよう に、端子４の腕５の一部を導出溝６の底の中央部に溝幅全体に露出させている。 端子４の腕５の付け根に対応する個所に、容器１の底面から端子４に達する深さ の電極挿入丸孔７を形成してある。図２に図１（ａ）の上下反転した外観図を示 す。この容器１のコイル収納凹部２に巻回上がりのトロイダルチョークコイル８ を収納して巻線端部９を導出溝６に沿わせ入れて端子４の露出面に抵抗溶接によ り接続して小型コイルとする。 図１（ｂ）の縦断面図は、抵抗溶接の説明図を兼ねている。負極の溶接電極は、 図において下方に二点鎖線で示したように、導電材の板または角棒上に電極挿入 丸孔７の深さよりも長い丸棒負電極１０の２本を丸孔７と同じ間隔に一体に突設 したものである。電極挿入丸孔７に丸棒負電極１０を下方から嵌合すると、丸棒 負電極１０は端子４と接触し、容器１を支持する。次に図の上方に示した板正電 極１１（二点鎖線で示す）を導出溝６に入れて巻線端部９を押えて端子４と線接 触させる。丸棒負電極１０、板正電極１１に通電して抵抗溶接を行う。 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 (a) is an external view of a small coil according to the present invention, in which a rectangular thick plate-shaped resin container 1 (hereinafter referred to as a container) has a circular shape with one side (the left back side in the drawing) sided to the side. A coil housing recess 2 is formed, and a coil positioning cylinder 3 having a height slightly smaller than the depth of the housing recess 2 is formed at the center of the housing recess 2. Two strip-shaped terminals 4 (hereinafter referred to as terminals) are projected from the side surface farthest from the storage recess 2 (on the right front side in the figure) at predetermined intervals with the surfaces parallel to the surface. Is integrally buried in. The end (not shown) embedded in the container 1 is an L-shape having an arm 5 having a length shown in FIG. 1 (b), which is sufficiently shorter than half the distance between the terminals 4, so that the arms 5 face each other. It is located in. Two lead-out grooves 6 are further formed on the surface of the container 1 from the storage recess 2 toward the side surface on which the terminals 4 are located. The lead-out groove 6 is formed so that the lower side of the outer inner wall thereof coincides with the inner upper edge of the terminal 4 and has a depth. 1B is a vertical sectional view taken along the line AA of FIG. As shown in the drawing, the lead-out groove 6 exposes a part of the arm 5 of the terminal 4 at the center of the bottom of the lead-out groove 6 over the entire groove width. An electrode insertion round hole 7 having a depth reaching the terminal 4 from the bottom surface of the container 1 is formed at a location corresponding to the base of the arm 5 of the terminal 4. FIG. 2 shows an external view of FIG. The wound toroidal choke coil 8 is housed in the coil housing recess 2 of the container 1, the winding end 9 is inserted along the lead-out groove 6 and connected to the exposed surface of the terminal 4 by resistance welding to reduce the size. Use as a coil. The vertical sectional view of FIG. 1B also serves as an explanatory view of resistance welding. The welding electrode of the negative electrode is, as shown by the two-dot chain line in the figure below, the electrode insertion on the plate or the square bar of the conductive material. Two round bar negative electrodes 10 longer than the depth of the round hole 7 It is integrally projected at the same interval as. When the round bar negative electrode 10 is fitted into the electrode insertion round hole 7 from below, the round bar negative electrode 10 contacts the terminal 4 and supports the container 1. Next, the plate positive electrode 11 (shown by a chain double-dashed line) shown in the upper part of the drawing is inserted into the lead-out groove 6 and the winding end 9 is pressed to make a wire contact with the terminal 4. Resistance welding is performed by energizing the round bar negative electrode 10 and the plate positive electrode 11.

【０００７】[0007]

【考案の効果】[Effect of the device]

本考案の構成による小型コイルは、からげ作業がなく、巻線端部と端子の接続 が容易であり、小型コイルの組立て作業を自動化し易く、組立て所要時間を短縮 でき、組立費を削減できる。容器の保持と電極の接触を同時に簡単にでき、端子 や容器を掴まないので損傷することがない。 端子と巻線端部の接続を確実に一定の長さで出来て小型コイルの信頼性が向上す る。 The small coil according to the configuration of the present invention does not have to be twisted, the winding end and the terminal can be easily connected, the small coil assembling work can be easily automated, the assembling time can be shortened, and the assembling cost can be reduced. .. The container can be held and the electrode can be easily contacted at the same time, and the terminals and the container are not gripped, so there is no damage. The connection between the terminal and the end of the winding can be reliably made with a fixed length, improving the reliability of the small coil.

【図面の簡単な説明】[Brief description of drawings]

【図１】図１の（ａ）は本考案の小型のコイルの一実施
例を示す外観斜視図。図１の（ｂ）は巻線端部と端子の
抵抗溶接の説明を兼ねる図１（ａ）に示すＡ−Ａ線の縦
断正面図である。FIG. 1A is an external perspective view showing an embodiment of a small coil of the present invention. FIG. 1B is a vertical cross-sectional front view of the line AA shown in FIG. 1A, which also serves to explain the resistance welding of the winding end portion and the terminal.

【図２】図１（ｂ）に対し上下を逆にした外観斜視図。FIG. 2 is an external perspective view in which the top and bottom are turned upside down with respect to FIG.

【符号の説明】[Explanation of symbols]

１ 樹脂容器 ２ コイル収納凹部 ３ 位置決め円柱 ４ 短冊形端子 ５ 腕 ６ 導出溝 ７ 電極挿入丸孔 ８ トロイダルチョークコイル ９ 巻線端部 １０ 丸棒負電極 １１ 板正電極 DESCRIPTION OF SYMBOLS 1 Resin container 2 Coil storage recess 3 Positioning cylinder 4 Strip terminal 5 Arm 6 Lead-out groove 7 Electrode insertion round hole 8 Toroidal choke coil 9 Winding end 10 Round bar negative electrode 11 Plate positive electrode

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 樹脂材からなる厚板の表面に複数個の端
子を側面から突出させて一体に埋設し形成したコイル収
納凹部から、側面に到る導出溝を端子の近傍に形成した
樹脂容器に、巻線型コイルを収納して巻線端部を端子に
接続してなる小型コイルにおいて、樹脂容器の表面と平
行な短冊形の端子の一部を導出溝の底の面に平行に面状
に露出させ、樹脂容器の底面に前記露出する端子の面に
達する電極挿入孔が孔底にそれぞれの端子の一部を面状
に露出させて形成され、巻線端部を導出溝の端子露出面
に抵抗溶接により接続してなることを特徴とする小型コ
イル。1. A resin container in which a lead-out groove reaching a side surface is formed in the vicinity of the terminal from a coil housing recess formed by integrally embedding a plurality of terminals on a surface of a thick plate made of a resin material so as to project from the side surface. In a small coil in which a wire-wound coil is housed and the end of the wire is connected to the terminal, a part of the strip-shaped terminal parallel to the surface of the resin container is planarly formed parallel to the bottom surface of the lead-out groove. And an electrode insertion hole reaching the surface of the exposed terminal on the bottom surface of the resin container is formed by exposing a part of each terminal in a planar shape on the bottom of the hole. A small coil that is connected to the surface by resistance welding.