JPH0574157U - Winding structure for small electric motor - Google Patents

Abstract

(57)【要約】 （修正有） 【目 的】 本考案は、小形電動機、特にボビンに巻装
された円環状巻線と引出線とを有する小形電動機の巻線
引出構造で引出線の引き抜き強度の安定化を低コストア
ップで実現する事を目的とする。 【構 成】 本考案に成る小形電動機の引出構造は、鍔
部と胴体部とを有し前記鍔部に引出端子を植設したコイ
ルボビンと、該コイルボビンに卷装された巻線の巻線端
が接続されている前記引出端子に接続された引出線と、
前記コイルボビンと一体もしくは別部材として引出線出
口を形成すると共に該引出線出口に近接してその内面に
撓み自在の壁を備える引出線保持部とより成り、前記引
出線を該撓み自在の壁の先端を経由して折り返す様にし
て引出線出口に引き出す如く構成される。 (57) [Summary] (Correction) [Objective] The present invention is a small-sized electric motor, in particular, a small-sized electric motor having a winding wire and a lead wire wound around a bobbin. The purpose is to stabilize the strength at a low cost. [Structure] A drawing-out structure for a small-sized electric motor according to the present invention comprises a coil bobbin having a collar portion and a body portion and implanting a lead-out terminal in the collar portion, and a winding end of a winding wound around the coil bobbin A lead wire connected to the lead terminal to which is connected,
The leader line is formed integrally with the coil bobbin or as a separate member, and the leader line holding portion is provided with a flexible wall on its inner surface in the vicinity of the leader line outlet. It is configured to be folded back via the tip and drawn out to the leader line outlet.

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]

本考案は小形電動機、特にボビンに卷装された円環状巻線と引出線とを有する 小形電動機の巻線引出構造に関するものである。 The present invention relates to a small-sized electric motor, and more particularly to a winding-out structure for a small-sized electric motor having an annular winding and a lead wire mounted on a bobbin.

【０００２】[0002]

【従来の技術】[Prior Art]

従来技術の内容・構成を説明する。コイルボビンに巻線が卷装される小形電動 機においても、外部との電気的接続手段として引出線が使用される例が一般的で ある。そして電動機本体に一体的に引出線が固着されている構成では、使用され る引出線に対する抜去力の確保がなかなか厄介な課題でいろいろな工夫が積み重 ねられている。 The contents and configuration of the conventional technology will be described. Even in a small electric motor in which a coil bobbin is wound with windings, it is common that a lead wire is used as an electrical connection means to the outside. With the structure in which the leader line is integrally fixed to the motor body, it is a difficult task to secure the extraction force for the leader line used, and various measures have been accumulated.

【０００３】 実開昭６４−１６１６７号はその１つの例で巻線端と引出線との接続の為に中 継端子を併設する構成で、コイルボビンと一体に形成したリードブッシュに溝を 設け該溝内に引出線を圧着貫挿する事で抜去力を確保しようとするものであり、 実開昭６３−１６５８０８号は巻線端と引出線とを直接接続する構成で、リード ブッシュにほぼ Ｌ 字状の溝を形成して該溝内に引出線を這わせて貫挿し溝の角 部での折り曲げ状態の抵抗力を抜去力確保の手段とするものである。更に特開昭 ６２−１６９４０４号は同じく巻線端と引出線とを直接接続する構成ではあるが 、コイルボビンの鍔を厚肉として該厚肉部に引出線を這わせる比較的長い円周方 向を主体とする溝を形成して引出線を貫挿させる事で溝の壁面との摩擦を抜去力 確保の手段とするものである。これらの構成は、いずれもリードブッシュに形成 された溝の内壁や角と引出線の表面との摩擦抵抗力を利用したもので、一般的に 絶縁性樹脂部材の成型によるリードブッシュの構成から溝幅のばらつき等による 抜去力の低下を無視できないのが実状であった。Japanese Utility Model Laid-Open No. 64-16167 is one example of such a structure in which a relay terminal is provided for connecting a winding end and a lead wire, and a groove is provided in a lead bush integrally formed with a coil bobbin. The lead wire is crimped and inserted into the groove in order to secure the removal force. Actually, No. 63-165808 has a structure in which the winding end and the lead wire are directly connected, and the lead bush is almost L-shaped. A character-shaped groove is formed, and a leader line is laid in the groove so as to be inserted thereinto, and a resistance force in a bent state at a corner portion of the groove is used as a means for securing a removal force. Further, in Japanese Patent Laid-Open No. 62-169404, similarly, the winding end and the lead wire are directly connected, but a relatively long circumferential direction in which the lead wire is passed through the thick portion of the collar of the coil bobbin. By forming a groove mainly consisting of and inserting the leader wire, the friction with the wall surface of the groove is used as a means to secure the removal force. All of these configurations utilize the frictional resistance between the inner wall or corner of the groove formed on the lead bush and the surface of the lead wire.Generally, the groove of the lead bush is formed by molding an insulating resin member. The fact is that the reduction in the removal force due to variations in width cannot be ignored.

【０００４】 又、巻線端を内部接続した端子を電動機本体の引出端部とし、直接引出線を固 着せず外部部材としてコネクタを使用するようにした引出線を分離させる構成も よく知られているが、巻線端の接続が固定された端子を対象とするものである為 接続作業はやり易い他引出線が電動機本体に固着されていない為その取扱性には 優れる反面、最近の当該電動機本体に対する要求コスト絶対額の低下が併用する コネクタのコストを容認できなくなりつつある事等別の問題を派生させるに至っ ている。It is also well known that the terminal internally connected to the winding end is used as the lead-out end of the motor body and the lead-out wire is separated without using the connector as an external member without directly fixing the lead-out wire. However, since the connection of the winding ends is for fixed terminals, the connection work is easy, and since the leader wire is not fixed to the motor body, it is easy to handle, but the recent motor body The absolute decrease in the required cost of the connector has led to other problems such as the cost of the connector used together is becoming unacceptable.

【０００５】[0005]

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

上述の如き従来の構成は、引出線の抜去力の安定化の面で信頼性が十分でない 他、引出構造にまつわるコスト面でもニーズに十分応えられなくなってきている 等の如き問題があった。 The conventional configuration as described above has problems such as insufficient reliability in terms of stabilizing the pulling-out force of the leader line, and also being unable to sufficiently meet the needs in terms of the cost related to the leader structure.

【０００６】[0006]

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

本考案に成る小形電動機の引出構造は、鍔部と胴体部とを有し前記鍔部に引出 端子を植設したコイルボビンと、該コイルボビンに卷装された巻線の巻線端が接 続されている前記引出端子に接続された引出線と、前記コイルボビンと一体もし くは別部材として引出線出口を形成すると共に該引出線出口に近接してその内面 に撓み自在の壁を備える引出線保持部とより成り、前記引出線を前記撓み自在の 壁の先端を経由して折り返す様にして引出線出口に引き出す如き構成としている 。 The drawing structure of a small electric motor according to the present invention has a coil bobbin having a collar portion and a body portion, and a lead terminal is planted in the collar portion, and a winding end of a winding wound on the coil bobbin is connected. A leader wire connected to the leader terminal and a leader wire outlet that is integral with or separate from the coil bobbin and that has a flexible wall on its inner surface in the vicinity of the leader wire outlet. And is configured to be drawn out to the leader line outlet by folding back the leader line via the tip of the flexible wall.

【０００７】[0007]

【作 用】[Work]

上述の如き構成においては、卷装された巻線端の接続相手がコイルボビンに植 設固定された引出端子である為作業性に優れていると同時に、引出線の折り返し 状態と撓み自在の壁の引っ張り力に応じた撓みにより引出線を押圧保持する働き によって特別な条件を付加する事なしに十分な抜去力を確保する事が出来る如き 作用効果がある。 In the above-mentioned structure, since the connection partner of the wound winding end is the lead-out terminal fixedly implanted in the coil bobbin, the workability is excellent, and at the same time, the lead-out wire is folded back and the flexible wall is formed. Due to the function of pressing and holding the leader wire by bending according to the pulling force, there is an effect that a sufficient pulling force can be secured without adding special conditions.

【０００８】[0008]

【実施例】【Example】

図１に本考案に成る引出構造の例の要部断面を示す。該例は２組の巻線を含む 固定子部より成る例で、２つのコイルボビン５−１に夫々卷装された巻線４の巻 線端４−１が前記コイルボビン５−１の鍔の外周縁に植設された引出端子６の根 元に巻き付け接続され、同じ引出端子６に引出線３が夫々接続固着される。前記 コイルボビン５−１の外側鍔の外周縁にはヒンジ５−１０で引出線保持部１が一 体的に繋がって形成されている。 引出線保持部１はコイルボビン５−１と別部材として独立していても差し支え 無い事は言うまでもない。図示はしないが引出線保持部１がコイルボビン５−１ と分離して別部材として併用される構成では、図１に破線で略示しているケーシ ング８との嵌着構造をもたせて固定保持するようにする。 FIG. 1 shows a cross section of a main part of an example of a drawer structure according to the present invention. This example is an example of a stator portion including two sets of windings, and the winding ends 4-1 of the windings 4 respectively mounted on the two coil bobbins 5-1 are outside the flange of the coil bobbin 5-1. The lead wires 6 are wound around and connected to the roots of the lead-out terminals 6 planted on the periphery, and the lead-out wires 3 are connected and fixed to the same lead-out terminals 6, respectively. A lead wire holding portion 1 is integrally connected to the outer peripheral edge of the outer flange of the coil bobbin 5-1 by a hinge 5-10. It goes without saying that the lead wire holding portion 1 may be independent of the coil bobbin 5-1 as a separate member. Although not shown, in the configuration in which the lead wire holding portion 1 is separated from the coil bobbin 5-1 and is also used as a separate member, the lead wire holding portion 1 is fixedly held by providing a fitting structure with the casing 8 which is schematically shown by a broken line in FIG. To do so.

【０００９】 前記引出線保持部１には図３〜図５に示すように引出線３を貫挿させる引出線 出口２が形成され、該引出線出口２の内壁２−１に対向するように撓み自在の壁 ７が設けられている。引出端子６に接続された引出線３は、図１に示すように該 撓み自在の壁７の先端を経由し折り返すような姿で引出線出口２から外へ引き出 される。この取付け状態において引出線３に外から引っ張る力が加わると、撓み 自在の壁７の先端が引出線３の折り返し部に食いつくようにして引出線出口２の 奥端部の内壁２−１に引き寄せられるように撓み接近する事になる。撓み自在の 壁７が撓んで引出線出口の内壁２−１に接近する事で両壁で挟持される引出線３ は撓み自在の壁７の先端部での折り返しと前記挟持による摩擦力で確実に保持さ れ、当該引出線３の皮膜の破損もしくは撓み自在の壁７の破壊を伴わない限度で 抜去力を得る事が出来る。As shown in FIGS. 3 to 5, a leader line outlet 2 for inserting the leader line 3 is formed in the leader line holding portion 1 so as to face the inner wall 2-1 of the leader line outlet 2. A flexible wall 7 is provided. The lead wire 3 connected to the lead terminal 6 is drawn out from the lead wire outlet 2 in such a manner as to be folded back through the tip of the flexible wall 7 as shown in FIG. When a force is applied to the leader line 3 from the outside in this mounted state, the tip of the flexible wall 7 bites the folded-back portion of the leader line 3 and is drawn to the inner wall 2-1 at the inner end of the leader line outlet 2. It will bend and approach as you can. As the flexible wall 7 bends and approaches the inner wall 2-1 of the outlet of the leader line, the leader line 3 sandwiched between the two walls is securely folded back at the tip of the flexible wall 7 and the frictional force by the sandwiching ensures the reliability. Therefore, the pulling force can be obtained to the extent that the film of the lead wire 3 is not damaged or the flexible wall 7 is not broken.

【００１０】 前記引出線出口２は、図５に示すように孔として形成してもよいが、該構成が 引出線３をくぐり抜けさせて貫挿する事を前提とする為作業性の面で不利である 事は良く知られている通りで、その改善策として図３及び図２に示すように引出 線保持部１を保持部１−１と保持部１−２に２分割した構造とし、一方の保持部 １−１にＵ字溝２’を設けこの開口部を塞ぐようにして他方の保持部１−２を併 用する構造も効果がある。該例でも当該保持部１−１及び同１−２を夫々コイル ボビン５−１と一体に形成しても良く、別部材としその保持手段として、詳細は 省略するが互いに嵌着構造を設けるとかケーシング８との嵌着を利用する事が可 能である。The lead-out wire outlet 2 may be formed as a hole as shown in FIG. 5, but it is disadvantageous in terms of workability because it is premised that the lead-out wire outlet 2 passes through the lead-out wire 3 and is inserted therethrough. It is well known that, as an improvement measure thereof, the lead wire holding portion 1 is divided into a holding portion 1-1 and a holding portion 1-2 as shown in FIG. 3 and FIG. The holding portion 1-1 is provided with a U-shaped groove 2 ', and the other holding portion 1-2 is also used so as to close the opening, which is also effective. Also in this example, the holding parts 1-1 and 1-2 may be formed integrally with the coil bobbin 5-1 respectively, and as a separate member, a holding structure may be provided for each as a holding means, although details thereof will be omitted. It is possible to use the fitting with the casing 8.

【００１１】[0011]

【考案の効果】[Effect of the device]

本考案に成る小形電動機の巻線引出構造は上述のような構成であるので、卷装 された巻線端の接続相手がコイルボビンに植設固定された引出端子である為作業 性に優れていると同時に、引出線の折り返し状態と撓み自在の壁の引っ張り力に 応じた撓みにより引出線を押圧保持する働きによって特別な条件を付加する事な しに十分な抜去力を確保する事が出来る如き作用効果がある。 Since the winding drawing structure of the small electric motor according to the present invention has the above-mentioned structure, it is excellent in workability since the connection partner of the winding end mounted on the winding is the drawing terminal fixedly implanted in the coil bobbin. At the same time, it is possible to secure sufficient withdrawal force without adding special conditions by the function of pressing and holding the leader line by bending according to the folded state of the leader line and the pulling force of the flexible wall. There is an effect.

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

【図１】本考案に成る巻線引出構造の例の要部断面図で
ある。FIG. 1 is a sectional view of an essential part of an example of a winding lead-out structure according to the present invention.

【図２】図１に示す例の引出線保持部の正面図である。FIG. 2 is a front view of the leader wire holding portion of the example shown in FIG.

【図３】図２に示す例の保持部単体の部分正面略図であ
る。FIG. 3 is a schematic front view of a part of the holding unit alone of the example shown in FIG.

【図４】図１の例の引出線保持部単体の断面図である。FIG. 4 is a cross-sectional view of the lead wire holding unit alone in the example of FIG.

【図５】引出線保持部の別の例を示す部分正面略図であ
る。FIG. 5 is a partial front schematic view showing another example of the leader holding portion.

【図６】図１の例のコイルボビンに植設された引出端子
を示す部分断面図である。FIG. 6 is a partial cross-sectional view showing a lead terminal implanted in the coil bobbin of the example of FIG.

【符号の説明】[Explanation of symbols]

１ ：引出線保持部 １−１ ：保持部Ａ １−２ ：保持部Ｂ ２ ：引出線出口 ２’ ：Ｕ字溝の引出線出口 ２−１ ：引出線出口奥端部の内壁 ３ ：引出線 ４ ：巻線 ４−１ ：巻線端 ５−１ ：コイルボビン ５−１０：ヒンジ ６ ：引出端子 ７ ：撓み自在の壁 ８ ：ケーシング ９ ：磁路構成部 1: Leader wire holding portion 1-1: Holding portion A 1-2: Holding portion B 2: Leader wire outlet 2 ': Leader wire outlet of U-shaped groove 2-1: Inner wall of lead wire outlet back end 3: Drawer Line 4: Winding 4-1: Winding end 5-1: Coil bobbin 5-10: Hinge 6: Drawout terminal 7: Flexible wall 8: Casing 9: Magnetic path component

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 鍔部と胴体部とを有し前記鍔部に引出端
子（６）を植設したコイルボビン（５−１）と、該コイ
ルボビンに卷装されその巻線端が前記引出端子に接続さ
れる円環状の巻線（４）と、前記引出端子に接続される
引出線（３）と、該引出線を外部に引き出す引出線出口
（２）を形成する引出線保持部（１）とを備えた小形電
動機の巻線引出構造において、前記引出線保持部（１）
は引出線出口に近接してその内面に撓み自在の壁（７）
を備え、前記引出線が該撓み自在の壁の先端を経由して
折り返す様にして引出線出口（２）に引き出される事を
特徴とする小形電動機の巻線引出構造。1. A coil bobbin (5-1) having a collar portion and a body portion, wherein a lead-out terminal (6) is planted in the collar portion, and a winding end of the coil bobbin mounted on the coil bobbin to the lead-out terminal. An annular wire (4) to be connected, a leader wire (3) connected to the leader terminal, and a leader wire holding portion (1) forming a leader wire outlet (2) for drawing the leader wire to the outside. In a winding drawing structure for a small-sized electric motor comprising:
Is a flexible wall (7) close to the outlet of the leader and flexible on its inner surface
A winding drawing structure for a small electric motor, characterized in that the lead wire is drawn out to the lead wire outlet (2) so as to be folded back via the tip of the flexible wall. 【請求項２】 前記引出線保持部（１）がコイルボビン
（５−１）とヒンジ（５−１０）で繋がる一体成型によ
り形成されている事を特徴とする請求項１に記載の小形
電動機の巻線引出構造。2. The small electric motor according to claim 1, wherein the lead wire holding portion (1) is formed by integral molding which is connected to the coil bobbin (5-1) by a hinge (5-10). Winding structure. 【請求項３】 引出線保持部（１）が２つに分離され、
前記引出線出口が一方の保持部Ａ（１−１）に形成され
たＵ字溝と該Ｕ字溝の開口部を塞ぐもう一方の保持部Ｂ
（１−２）の端縁とで形成される事を特徴とする請求項
１，２に記載の小形電動機の巻線引出構造。3. The lead wire holding portion (1) is separated into two,
The U-shaped groove formed in the one holding portion A (1-1) and the other holding portion B closing the opening of the U-shaped groove.
The winding drawing structure for a small electric motor according to claim 1, wherein the winding drawing structure is formed by the edge of (1-2).