JP2011071203A - Bobbin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bobbin that prevents the occurrence of breakdown or electric leakage by a simple configuration, and further, allows alignment winding of a wire. <P>SOLUTION: The bobbin is wound with a wire 1. The bobbin includes: a winding body 2 around which the wire 1 is wound; and a flange 3 formed at the axial end in the winding body 2 and further protruding to the outside than the outer periphery of the winding body 2. The flange 3 is configured such that a guide groove 31 having a depth from the peripheral edge of the flange 3 to at least the outer periphery of the winding body 2 is formed along in the axial direction of the winding body 2. The winding body 2 has a groove 21 formed at a part, facing the end of the guide groove 31, of the winding body along in the circumferential direction of the outer periphery. The wire 1 is arranged along the guide groove 31 and the groove 21. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、ボビンに関するものである。   The present invention relates to a bobbin.

従来から、図７に示すように、電線１が巻回される略円筒状の巻胴部２と、巻胴部２の軸方向両端にそれぞれ形成される鍔部１３、１４と、鍔部１３に設けられて電線１の端部が接続されるコイル端子４とで構成されるボビンが提供されている（例えば特許文献１参照）。   Conventionally, as shown in FIG. 7, a substantially cylindrical winding drum portion 2 around which the electric wire 1 is wound, flange portions 13 and 14 respectively formed at both axial ends of the winding drum portion 2, and the flange portion 13. There is provided a bobbin that is provided with a coil terminal 4 that is connected to an end of the electric wire 1 (see, for example, Patent Document 1).

鍔部１３は、巻胴部２の一端より巻胴部２における径方向外側へ突出する略矩形平板状に形成され、鍔部１３の周縁から巻胴部２の外周面へ向けて案内溝１１３が形成されている。   The flange 13 is formed in a substantially rectangular flat plate shape that protrudes radially outward from the end of the winding drum 2 from one end of the winding drum 2, and guides 113 from the periphery of the flange 13 toward the outer peripheral surface of the winding drum 2. Is formed.

案内溝１１３は、その底面１１３ａが巻胴部２の外周面よりも外側に位置し、鍔部１３の厚み方向に沿って形成されている。   The guide groove 113 has a bottom surface 113 a positioned outside the outer peripheral surface of the winding body portion 2 and is formed along the thickness direction of the flange portion 13.

また、鍔部１３は、厚み方向における一面が、巻胴部２の端部に巻回する電線１に当接し、他面には、電線１の端部が接続されるコイル端子４が設けられている。以下、鍔部１３の厚み方向における一面を当接面１３Ａと称し、鍔部の厚み方向における他面を端子配設面１３Ｂと称す。   In addition, the flange portion 13 has one surface in the thickness direction in contact with the electric wire 1 wound around the end portion of the winding drum portion 2, and the other surface is provided with a coil terminal 4 to which the end portion of the electric wire 1 is connected. ing. Hereinafter, one surface in the thickness direction of the flange portion 13 is referred to as a contact surface 13A, and the other surface in the thickness direction of the flange portion is referred to as a terminal arrangement surface 13B.

鍔部１４は、巻胴部２の他端より巻胴部における径方向外側へ突出する略矩形平板状に形成される。   The flange portion 14 is formed in a substantially rectangular flat plate shape that protrudes radially outward from the other end of the winding drum portion 2.

そして、巻胴部２に巻回される電線１の端部は、鍔部１３の外面に沿って当接面、案内溝１１３、端子配設面を通りコイル端子４に半田に付けされ、巻胴部２では、電線１が巻胴部１の一端側から他端側、他端側から一端側へと順に多層に巻き上げられる。ここで、案内溝１１３と巻胴部２との間で電線１が当接部１３に沿って設けられているため（図７における破線部Ａ参照）、巻胴部２に多層に亘って巻回される電線１の各層における側部に、当接部１３に沿う電線１が接触する。以下、当接部１３に沿う電線１を入電線１ｃと称す。   Then, the end portion of the electric wire 1 wound around the winding body portion 2 is attached to the coil terminal 4 by solder along the outer surface of the flange portion 13 through the contact surface, the guide groove 113, and the terminal arrangement surface, and is wound. In the body portion 2, the electric wire 1 is wound up in multiple layers in order from one end side of the winding body portion 1 to the other end side and from the other end side to the one end side. Here, since the electric wire 1 is provided along the contact portion 13 between the guide groove 113 and the winding drum portion 2 (see the broken line portion A in FIG. 7), the winding drum portion 2 is wound in multiple layers. The electric wire 1 along the contact portion 13 is in contact with the side portion of each layer of the electric wire 1 being rotated. Hereinafter, the electric wire 1 along the contact portion 13 is referred to as an incoming wire 1c.

入電線１ｃと上記各層における側部との間における電位傾度は、外周の層程大きくなる。そのため、入電線１ｃと各層の端部の間に絶縁テープを介在させることで、入電線１ｃと各層の側部との間における絶縁性能の低下を防止している。   The potential gradient between the incoming wire 1c and the side portion in each of the above layers becomes larger as the outer peripheral layer. Therefore, the insulation tape is interposed between the incoming wire 1c and the end of each layer, thereby preventing a decrease in insulation performance between the incoming wire 1c and the side portion of each layer.

特開２００３−８６４３４号公報JP 2003-86434 A

しかしながら、入電線１ａと各層の端部との間に絶縁テープを介在させるには手間がかかる上、電線が整列巻きになり難いといった問題があった。   However, it takes time to interpose the insulating tape between the incoming wire 1a and the end of each layer, and there is a problem that the wires are difficult to be aligned.

本発明は、上記事由に鑑みてなされたものであり、その目的は、簡単な構成で絶縁性能の低下を防止でき、電線の整列巻きが容易なボビンを提供することにある。   The present invention has been made in view of the above-described reasons, and an object of the present invention is to provide a bobbin that can prevent a decrease in insulation performance with a simple configuration and that can be easily wound in an aligned manner.

請求項１の発明は、電線が巻回される巻胴部と、巻胴部における軸方向の端部に形成され、巻胴部の外周面よりも外側へ突出する鍔部とを備え、前記鍔部は、当該鍔部の周縁から少なくとも巻胴部の外周面までの深さを有する案内溝が、巻胴部の軸方向に沿って形成され、前記巻胴部は、案内溝の端部に対向する箇所に外周面の周方向に沿って第一の溝部が形成され、電線は、案内溝の底面及び第一の溝部の底面に沿って配設されることを特徴とする。   The invention of claim 1 includes a winding drum portion around which the electric wire is wound, and a flange portion that is formed at an axial end portion of the winding drum portion and projects outward from the outer peripheral surface of the winding drum portion, In the flange portion, a guide groove having a depth from the periphery of the flange portion to at least the outer peripheral surface of the winding drum portion is formed along the axial direction of the winding drum portion, and the winding drum portion is an end portion of the guide groove. A first groove portion is formed along the circumferential direction of the outer peripheral surface at a location opposite to the outer peripheral surface, and the electric wire is disposed along the bottom surface of the guide groove and the bottom surface of the first groove portion.

この発明によれば、電線が、巻胴部の外周面よりも内側から巻胴部の外周面へと配設されるため、簡単な構成で、巻胴部の端部を巻回する電線が当接する鍔部の一面に、巻胴部へ導入される電線を這わせる必要がなく、巻胴部に多層に亘って巻回される電線の各層の側部と巻胴部に導入される電線とが多層接触せず、絶縁性能の低下を防止でき、更には、電線の整列巻きを行うことができる。   According to the present invention, since the electric wire is arranged from the inner side to the outer peripheral surface of the winding drum part from the outer peripheral surface of the winding drum part, the electric wire that winds the end of the winding drum part with a simple configuration is provided. There is no need to have the electric wire introduced into the winding drum portion on one surface of the collar portion that comes into contact, and the electric wires introduced into the side portions and the winding drum portion of each layer of the electric wire wound around the winding drum portion in multiple layers. Are not in multi-layer contact with each other, so that the insulation performance can be prevented from being lowered, and furthermore, the electric wires can be aligned and wound.

請求項２の発明は、前記鍔部は、電線の巻回方向に略平行で巻胴部の端部に巻回される電線が当接する当接面と案内溝の側壁とが鈍角を形成し、電線が案内溝の側壁及び第一の溝部の底面に沿って配設されることを特徴とする。   According to a second aspect of the present invention, the flange has an obtuse angle between a contact surface on which an electric wire wound around an end of the winding body portion is substantially parallel to the winding direction of the electric wire and a side wall of the guide groove. The electric wire is disposed along the side wall of the guide groove and the bottom surface of the first groove portion.

この発明によれば、当接面と案内溝の側壁とが鈍角を形成し、電線が案内溝の側壁に沿って配設されることで、巻胴部に巻回される電線の巻き始め箇所における巻回方向の張力が増大し、電線を巻胴部へ密着させることができる。   According to the present invention, the contact surface and the side wall of the guide groove form an obtuse angle, and the electric wire is disposed along the side wall of the guide groove, so that the winding start position of the electric wire wound around the winding body portion Thus, the tension in the winding direction of the wire increases, and the electric wire can be brought into close contact with the winding body.

請求項３の発明は、前記鍔部は、当接面と対向する外面に電線の端部が接続されるコイル端子が設けられ、コイル端子と前記案内溝との間には、案内溝に連続する傾斜面が形成され、当該斜面に沿って電線が配設されることを特徴とする。   According to a third aspect of the present invention, the flange is provided with a coil terminal to which an end of the electric wire is connected to the outer surface facing the contact surface, and is continuous with the guide groove between the coil terminal and the guide groove. An inclined surface is formed, and an electric wire is disposed along the inclined surface.

この発明によれば、案内溝に連続する傾斜面が形成されることで、電線端部がボビンに密着して電線がコイル端子に半田付けされる際の熱を傾斜面を介してボビンへ放熱することができ、更には、傾斜面が形成された分だけコイル端子からコイル部分までの距離が長くなって半田の熱がコイル部分にまで達することを抑制でき、電線の被膜剥離がコイル部分に達することを抑えることができる。   According to the present invention, the inclined surface continuous to the guide groove is formed, so that the heat generated when the wire end is in close contact with the bobbin and the wire is soldered to the coil terminal is radiated to the bobbin via the inclined surface. Furthermore, the distance from the coil terminal to the coil part is increased by the amount of the inclined surface, and the heat of the solder can be prevented from reaching the coil part. Can be suppressed.

請求項４の発明は、前記鍔部は、当接面と対向する外面に電線の端部が接続されるコイル端子が設けられ、コイル端子と前記案内溝との間には、電線の太さに略等しい幅を有する配線経路が設けられ、電線は前記配線経路を通ることを特徴とする。   According to a fourth aspect of the present invention, the flange has a coil terminal connected to an end of the electric wire on the outer surface facing the contact surface, and the thickness of the electric wire is between the coil terminal and the guide groove. And a wiring path having a width substantially equal to is provided, and the electric wire passes through the wiring path.

この発明によれば、電線をコイル端子に半田付けした際、半田が表面張力によって配線経路に入り込まないことから半田がコイル側に到達することがなく、電線の被膜剥離がコイル部分に達することを防止することができる。   According to this invention, when the electric wire is soldered to the coil terminal, the solder does not enter the wiring path due to surface tension, so that the solder does not reach the coil side, and the coating peeling of the electric wire reaches the coil portion. Can be prevented.

以上説明したように、本発明では、簡単な構成で絶縁性能の低下を防止でき、更には、電線の整列巻きが容易なボビンを提供することができるという効果がある。   As described above, according to the present invention, there is an effect that it is possible to provide a bobbin that can prevent a decrease in insulation performance with a simple configuration and that can easily wind an electric wire in an aligned manner.

本発明の実施形態におけるボビンの正面図を示す。The front view of the bobbin in the embodiment of the present invention is shown. 同上におけるボビンの底面図を示す。The bottom view of the bobbin in the same as the above is shown. 同上におけるボビンの断面図を示す。Sectional drawing of the bobbin in the same as the above is shown. 同上におけるボビンの断面図を示す。Sectional drawing of the bobbin in the same as the above is shown. 同上におけるボビンの別形態の要部拡大図を示す。The principal part enlarged view of another form of the bobbin in the same as the above is shown. 従来例におけるボビンの斜視図を示す。The perspective view of the bobbin in a prior art example is shown.

以下、本発明の実施の形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（実施形態）
本実施形態におけるボビンは、図１〜３に示すように、電線１が整列巻回される略円筒状の巻胴部２と、巻胴部２の軸方向両端にそれぞれ形成される鍔部３、４と、鍔部３に設けられるコイル端子５とから構成される。 (Embodiment)
As shown in FIGS. 1 to 3, the bobbin in the present embodiment includes a substantially cylindrical winding drum portion 2 around which the electric wire 1 is wound in an aligned manner, and a flange portion 3 formed at each axial end of the winding drum portion 2. 4 and a coil terminal 5 provided on the flange 3.

電線１は、巻胴部２の外周面において軸方向一端から他端にかけて順に巻回して多層に形成されるコイル１ａと、当該コイル１ａから引き出されてコイル端子４に接続される導入線１ｂとで構成される。   The electric wire 1 is wound in order from one end to the other end in the axial direction on the outer peripheral surface of the winding body portion 2, and is formed in multiple layers, and a lead wire 1b drawn from the coil 1a and connected to the coil terminal 4 Consists of.

鍔部３は、巻胴部２の一端より、巻胴部２の径方向外側へ向けて突出する長尺略矩形板状に形成され、鍔部３の周縁から巻胴部２の外周面へ向けて案内溝３１が形成されている。   The collar portion 3 is formed in a long, substantially rectangular plate shape that projects from one end of the winding drum portion 2 toward the radially outer side of the winding drum portion 2, and extends from the periphery of the collar portion 3 to the outer peripheral surface of the winding drum portion 2. A guide groove 31 is formed.

鍔部４は、巻胴部２の他端より、巻胴部２の径方向外側へ向けて突出する長尺矩形板状に形成される。   The collar portion 4 is formed in a long rectangular plate shape that projects from the other end of the winding drum portion 2 toward the radially outer side of the winding drum portion 2.

鍔部３に形成される上記案内溝３１は、その底面３１ａが巻胴部２の外周面よりも内側に位置し、鍔部３の厚み方向に沿って形成されている。つまり、案内溝３１は、鍔部３の一方の長辺に切り欠きを形成することで形成される。   The guide groove 31 formed in the flange portion 3 is formed along the thickness direction of the flange portion 3 with its bottom surface 31 a positioned on the inner side of the outer peripheral surface of the winding drum portion 2. That is, the guide groove 31 is formed by forming a notch on one long side of the flange portion 3.

また、鍔部３は、厚み方向における一面が、コイル１ａの側部に当接し、他面には、電線１の導入線１ｂが接続されるコイル端子４が設けられている。以下、鍔部３の厚み方向における一面を当接面３Ａと称し、鍔部３の厚み方向における他面を端子配設面３Ｂと称す。   Further, the flange portion 3 has one surface in the thickness direction in contact with the side portion of the coil 1a, and the other surface is provided with a coil terminal 4 to which the lead-in wire 1b of the electric wire 1 is connected. Hereinafter, one surface in the thickness direction of the flange portion 3 is referred to as a contact surface 3A, and the other surface in the thickness direction of the flange portion 3 is referred to as a terminal arrangement surface 3B.

端子配設面３Ｂは、コイル端子４と案内溝３１との間において、案内溝３１の側壁周縁から端子配設面３Ｂに対して略垂直な突部３２が突設されている。また、端子配設面３Ｂには、図３に示すように、突部３２の端面に対して略平行となる突壁３３が、突部３２よりも巻胴部２における径方向内側に突設される。そして、突部３２と突壁３３との間に形成される隙間３４は、電線１が通過できる程度（例えば、電線１の直径に略等しい）の幅Ｌを有して、案内溝３１に連続する。   The terminal arrangement surface 3B is provided with a protrusion 32 that is substantially perpendicular to the terminal arrangement surface 3B from the peripheral edge of the side wall of the guide groove 31 between the coil terminal 4 and the guide groove 31. Further, as shown in FIG. 3, a protruding wall 33 that is substantially parallel to the end surface of the protruding portion 32 is provided on the terminal arrangement surface 3 </ b> B so as to protrude radially inward of the winding body portion 2 from the protruding portion 32. Is done. And the clearance gap 34 formed between the protrusion 32 and the protrusion wall 33 has the width | variety L of the grade which can pass the electric wire 1 (for example, substantially equal to the diameter of the electric wire 1), and continues to the guide groove 31. To do.

また、突部３２の側壁に連続する案内溝３１の側壁は、巻胴部２の一端に近接して、コイル１ａの巻回方向へ向かって傾斜した傾斜面３６が形成される。この傾斜面３６は、当接面３Ａに連続して当該当接面３Ａと鈍角を形成する。   In addition, an inclined surface 36 that is inclined toward the winding direction of the coil 1 a is formed on the side wall of the guide groove 31 that is continuous with the side wall of the protrusion 32, close to one end of the winding body portion 2. The inclined surface 36 forms an obtuse angle with the contact surface 3A continuously from the contact surface 3A.

巻胴部２は、図４に示すように、外周面の軸方向一端において、案内溝３１の開放端に対向する箇所に、コイル１ａの巻回方向（図１における矢印方向）に沿って、溝部２１が形成される。   As shown in FIG. 4, the winding drum portion 2 is positioned along the winding direction of the coil 1 a (in the direction of the arrow in FIG. 1) at a position facing the open end of the guide groove 31 at one axial end of the outer peripheral surface. A groove portion 21 is formed.

上記構成からなる本実施形態のボビンは、導入線１ｂの先端部がコイル端子４に半田付けにより接続され、導入線１ｂが、隙間３４→案内溝３１→傾斜面３５の順に鍔部３上に配設され、巻胴部２において溝部２１から電線１が巻き始められることによってコイル１ａが形成される。なお、導入線１ｂの配設の順番は、上記の逆であってもよい。   In the bobbin of this embodiment having the above-described configuration, the leading end portion of the lead-in wire 1b is connected to the coil terminal 4 by soldering, and the lead-in wire 1b is placed on the flange portion 3 in the order of the gap 34 → the guide groove 31 → the inclined surface 35. The coil 1 a is formed when the electric wire 1 starts to be wound from the groove portion 21 in the winding body portion 2. In addition, the order of arrangement | positioning of the introductory line 1b may be said reverse.

つまり、導入線１ｂは、巻胴部２の径方向において巻胴部２の外周面よりも内側に底面３１ａが位置する案内溝３１から当該案内溝３１に対向して形成される溝部２１へ案内され、溝部２１から巻き始められるコイル１ａに連続する。そのため、導入線１ｂは、鍔部３の当接面３Ａ上を這うことなく巻胴部２まで案内される。   That is, the lead-in wire 1b is guided from the guide groove 31 in which the bottom surface 31a is located on the inner side of the outer peripheral surface of the winding drum portion 2 in the radial direction of the winding drum portion 2 to the groove portion 21 formed facing the guide groove 31. And continues to the coil 1a that starts to be wound from the groove 21. Therefore, the lead-in wire 1b is guided to the winding drum portion 2 without crawling on the contact surface 3A of the flange portion 3.

従って、導入線１ｂは、当接面３Ａに側部が当接するコイル１ａに接触することがなく、コイル１ａと導入線１ｂとの間の絶縁性能の低下を防止することができ、更には、コイル１ａの整列巻きを容易に行うことができる。   Therefore, the lead-in wire 1b does not come into contact with the coil 1a whose side abuts against the abutment surface 3A, and can prevent a decrease in insulation performance between the coil 1a and the lead-in wire 1b. Aligned winding of the coil 1a can be easily performed.

また、電線１を巻胴部２に巻回する際、巻胴部２の巻き始め箇所に溝部２１が形成されていることで、巻回を始める箇所の位置決めがなされ、更には、溝部２１に沿って巻回が始められることで、ずれを起こすことなくスムーズに巻回が行われる。   Moreover, when winding the electric wire 1 around the winding drum portion 2, the groove portion 21 is formed at the winding start portion of the winding drum portion 2, so that the position where the winding is started is positioned. Winding can be started smoothly without causing any deviation.

また、導入線１ｂが、傾斜面３５に沿って配設されることで、巻胴部２の溝部２１から巻き始められるコイル１ａの巻き始め箇所の張力が増大し、コイル１ａを巻胴部２へ密着させることができる。   Further, the introduction line 1b is disposed along the inclined surface 35, whereby the tension at the winding start portion of the coil 1a that starts to be wound from the groove portion 21 of the winding drum portion 2 is increased, and the coil 1a is wound around the winding drum portion 2. Can be closely attached.

また、導入線１ｂは、コイル端子４と案内溝３１との間で、導入線１ｂと略等しい幅に形成された隙間３４を通るため、導入線１ｂをコイル端子４に半田付けした際、半田が案内溝３１側へ流れようとした場合であっても、半田の表面張力により当該半田が隙間３４に入り込まない。そのため、半田が、コイル１ａまで到達することを防止でき、被膜剥離がコイル１ａに達することを防止することができる。   Since the lead-in wire 1b passes through the gap 34 formed between the coil terminal 4 and the guide groove 31 with a width substantially equal to that of the lead-in wire 1b, when the lead-in wire 1b is soldered to the coil terminal 4, the solder wire Even when the solder is about to flow toward the guide groove 31, the solder does not enter the gap 34 due to the surface tension of the solder. Therefore, the solder can be prevented from reaching the coil 1a, and the film peeling can be prevented from reaching the coil 1a.

またに従来は、図５（ａ）に示すように、導入線１ｂが案内溝３１に達するまでに鍔部３表面に密着していないのに対して、上記本実施形態の別形態では、図５（ｂ）に示すように、鍔部３の端子配設面において、コイル端子４と案内溝３１との間に傾斜面３６を形成することで、導入線１ｂが、コイル端子４から案内溝３１へ向かう間に傾斜面３６に密着する。そうすることによって、導入線１ｂをコイル端子４に半田付けした際の熱が、傾斜面３６を介してボビン側へ放熱される。加えて、傾斜面３６が形成されることでコイル端子４に半田付けされる導入線１ｂの端部からコイル１ａまでの距離が傾斜面３６の長さＬ２だけ長くなり、半田の熱がコイル１ａまで到達することを抑制できる。従って、半田の熱に起因する被膜剥離が、コイル１ａに達することを一層抑制することができる。なお、傾斜面３６を形成する箇所は、コイル端子４と案内溝３１との間に限定されず、配線経路３４内等であってもよい。   Further, conventionally, as shown in FIG. 5A, the lead-in wire 1b is not in close contact with the surface of the collar portion 3 until it reaches the guide groove 31, whereas in the other embodiment of the present embodiment, As shown in FIG. 5 (b), by forming an inclined surface 36 between the coil terminal 4 and the guide groove 31 on the terminal arrangement surface of the flange portion 3, the lead-in wire 1 b extends from the coil terminal 4 to the guide groove. In close contact with the inclined surface 36 toward 31. By doing so, the heat when soldering the lead-in wire 1b to the coil terminal 4 is radiated to the bobbin side via the inclined surface 36. In addition, since the inclined surface 36 is formed, the distance from the end of the lead-in wire 1b soldered to the coil terminal 4 to the coil 1a is increased by the length L2 of the inclined surface 36, and the heat of the solder is reduced to the coil 1a. It is possible to suppress reaching up to. Therefore, it is possible to further suppress the film peeling due to the heat of the solder from reaching the coil 1a. The location where the inclined surface 36 is formed is not limited between the coil terminal 4 and the guide groove 31 and may be in the wiring path 34 or the like.

１ 電線
２ 巻胴部
３ 鍔部
３Ａ 当接面
５ コイル端子
２１ 溝部（第一の溝部）
３１ 案内溝
３４ 隙間（配線経路）
３６ 傾斜面 DESCRIPTION OF SYMBOLS 1 Electric wire 2 Winding drum part 3 Collar part 3A Contact surface 5 Coil terminal 21 Groove part (1st groove part)
31 Guide groove 34 Clearance (wiring route)
36 Inclined surface

Claims (4)

電線が巻回される巻胴部と、
巻胴部における軸方向の端部に形成され、巻胴部の外周面よりも外側へ突出する鍔部とを備え、
前記鍔部は、当該鍔部の周縁から少なくとも巻胴部の外周面までの深さを有する案内溝が、巻胴部の軸方向に沿って形成され、
前記巻胴部は、案内溝の端部に対向する箇所に外周面の周方向に沿って第一の溝部が形成され、電線は、案内溝の底面及び第一の溝部の底面に沿って配設されることを特徴とするボビン。 A winding drum portion around which the electric wire is wound;
It is formed at an end portion in the axial direction of the winding drum portion, and includes a collar portion protruding outward from the outer peripheral surface of the winding drum portion,
In the collar part, a guide groove having a depth from the periphery of the collar part to at least the outer peripheral surface of the winding drum part is formed along the axial direction of the winding drum part,
The winding drum has a first groove formed along the circumferential direction of the outer peripheral surface at a location facing the end of the guide groove, and the electric wire is arranged along the bottom surface of the guide groove and the bottom surface of the first groove. A bobbin characterized by being installed. 前記鍔部は、電線の巻回方向に略平行で巻胴部の端部に巻回される電線が当接する当接面と案内溝の側壁とが鈍角を形成し、電線が案内溝の側壁及び第一の溝部の底面に沿って配設されることを特徴とする請求項１記載のボビン。   The abutment portion is substantially parallel to the winding direction of the electric wire, and an abutment surface on which an electric wire wound around the end of the winding body abuts and a side wall of the guide groove form an obtuse angle, and the electric wire is a side wall of the guide groove The bobbin according to claim 1, wherein the bobbin is disposed along a bottom surface of the first groove portion. 前記鍔部は、当接面と対向する外面に電線の端部が接続されるコイル端子が設けられ、コイル端子と前記案内溝との間には、案内溝に連続する傾斜面が形成され、当該斜面に沿って電線が配設されることを特徴とする請求項１または２記載のボビン。   The flange portion is provided with a coil terminal to which an end portion of the electric wire is connected to an outer surface facing the contact surface, and an inclined surface continuous to the guide groove is formed between the coil terminal and the guide groove, The bobbin according to claim 1, wherein an electric wire is disposed along the slope. 前記鍔部は、当接面と対向する外面に電線の端部が接続されるコイル端子が設けられ、コイル端子と前記案内溝との間には、電線の太さに略等しい幅を有する配線経路が設けられ、電線は前記配線経路を通ることを特徴とする請求項１乃至３いずれか記載のボビン。
The flange is provided with a coil terminal connected to the end of the electric wire on the outer surface facing the contact surface, and a wiring having a width substantially equal to the thickness of the electric wire between the coil terminal and the guide groove. The bobbin according to any one of claims 1 to 3, wherein a path is provided, and the electric wire passes through the wiring path.

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