JP2017059813A - Coil component - Google Patents

Coil component Download PDF

Info

Publication number
JP2017059813A
JP2017059813A JP2016111660A JP2016111660A JP2017059813A JP 2017059813 A JP2017059813 A JP 2017059813A JP 2016111660 A JP2016111660 A JP 2016111660A JP 2016111660 A JP2016111660 A JP 2016111660A JP 2017059813 A JP2017059813 A JP 2017059813A
Authority
JP
Japan
Prior art keywords
winding
core
groove
start line
winding start
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2016111660A
Other languages
Japanese (ja)
Other versions
JP6706148B2 (en
Inventor
一彰 朝倉
Kazuaki Asakura
一彰 朝倉
敏洋 成田
Toshihiro Narita
敏洋 成田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Parts Ind Co Ltd
Original Assignee
Tokyo Parts Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Parts Ind Co Ltd filed Critical Tokyo Parts Ind Co Ltd
Priority to CN201610825900.9A priority Critical patent/CN106816265B/en
Publication of JP2017059813A publication Critical patent/JP2017059813A/en
Application granted granted Critical
Publication of JP6706148B2 publication Critical patent/JP6706148B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulating Of Coils (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

PROBLEM TO BE SOLVED: To allow for automation of winding while ensuring the insulation distance of the winding of start line and a coil, and to facilitate fine-tuning of the inductance characteristics with one bobbin.SOLUTION: Housing grooves 31-34 for housing the winding of start lines 73 are formed in several places in the winding direction of a wound core 11. First guide grooves 61 for guiding the winding of start lines 73 from a connection terminal 77 to the housing grooves 31-34 are formed in several places of a first outer flange 51, contiguously to the housing grooves 31-34. A third guide groove 65 for extending the winding of start lines 73 outward of the bobbin is formed in a second outer flange 52 contiguously to the housing grooves 31-34. The winding of start lines 73 is placed in the first guide groove, the housing groove and the third guide groove, in order, and a first insulation tape is wound around the wound core 11.SELECTED DRAWING: Figure 3

Description

本発明は、例えば、電子機器に使用するコイル部品に関する。   The present invention relates to a coil component used for an electronic device, for example.

例えば、特許文献１には、巻線を巻回する巻芯部と、この巻線の巻幅を規制する両鍔部と、一方の鍔部に固定された端子と、巻き始め線を挿入する絶縁チューブを備えた絶縁トランスが記載されている。この絶縁チューブは、端子と巻き始め線との半田付け時において、皮膜の剥がれた巻き始め線と、コイル内周との絶縁を確保している。このトランスでは、巻き始め線を挿入する絶縁チューブがあるため、巻線の自動化ができなかった。   For example, in Patent Document 1, a winding core portion for winding a winding wire, both flange portions for regulating the winding width of the winding wire, a terminal fixed to one flange portion, and a winding start line are inserted. An insulation transformer with an insulation tube is described. This insulation tube ensures insulation between the winding start line from which the film has been peeled off and the inner circumference of the coil when the terminal and the winding start line are soldered. In this transformer, since there is an insulating tube into which the winding start wire is inserted, the winding cannot be automated.

一方、特許文献２には、巻線を巻回する巻線部と、この巻線の巻幅を規制する両鍔部を備えた巻線用ボビンが記載されている。この巻線用ボビンでは、両鍔部に、巻き始め線の線輪引き込み部と線輪引き出し部が１箇所に形成されており、巻線部には、巻き始め線の線輪引き込み部と線輪引き出し部に連接した溝が１箇所に形成されている。この溝に巻き始め線が配置されると、巻き始め線に絶縁チューブを挿入することなく巻き始め線とコイル内周との絶縁距離を確保して、巻線の自動化ができる可能性がある。   On the other hand, Patent Document 2 describes a winding bobbin provided with a winding portion for winding a winding and both flange portions for regulating the winding width of the winding. In this bobbin for winding, the winding wire drawing portion and the drawing wire drawing portion of the winding start wire are formed at one place on both flange portions, and the winding wire drawing portion and wire drawing portion of the winding start wire are formed on the winding portion. A groove connected to the ring drawer is formed in one place. If the winding start line is arranged in this groove, there is a possibility that the winding can be automated by securing an insulation distance between the winding start line and the coil inner circumference without inserting an insulating tube into the winding start line.

実開平５−７２１１５号公報Japanese Utility Model Publication No. 5-72115 特開平８−３１６０５８号公報JP-A-8-316058

特許文献２のような構成では、この巻線用ボビンの外周にコアが配置されてコイル外形がコアに近接して巻線の積層ができない場合、巻き始め線の線輪引き込み部と線輪引き出し部と、これらに連接した溝が１箇所に形成されているため、インダクタンス特性の微調整が難しかった。   In the configuration as disclosed in Patent Document 2, when the core is disposed on the outer periphery of the bobbin for winding and the outer shape of the coil is close to the core and the winding cannot be stacked, the wire ring drawing portion and the wire ring drawing of the winding start line Since the portion and the groove connected to these portions are formed at one place, it is difficult to finely adjust the inductance characteristics.

そこで本発明は、巻線の自動化をできつつインダクタンスの微調整をできるコイル部品を提供しようとするものである。   Accordingly, the present invention is intended to provide a coil component that can finely adjust the inductance while automating the winding.

上記の課題を解決するため、第１の本発明のコイル部品は、
コアと、
前記コアの一部が挿入された巻芯部と、前記巻芯部の巻軸方向両端に設けられた第１外鍔部と第２外鍔部を有するボビンと、
前記巻芯部の外周に巻回された、巻き始め線と巻き終わり線を有するコイルと、
前記第１外鍔部に固定された複数の接続端子と、を備え、
前記巻き始め線を収容するための収容溝が、前記巻芯部の外周に前記巻芯部の巻軸方向に沿って形成されていると共に、前記巻芯部の巻回方向に沿って複数箇所に形成されており、
前記巻き始め線を前記接続端子から前記収容溝に案内するための第１案内溝が、前記収容溝に連接して、前記第１外鍔部に複数箇所に形成されており、
前記収容溝に配置された前記巻き始め線を前記ボビン外方に引き延ばすための第３案内溝が、前記収容溝に連接して前記第２外鍔部に形成されており、
前記収容溝に収容された前記巻き始め線を覆うように、前記巻芯部に第１絶縁テープが巻回されており、
前記巻き始め線は、前記第２外鍔部側の前記第１絶縁テープの周縁を支点として巻軸方向と略直角方向に折り曲げられていることを特徴とする。 In order to solve the above problem, the coil component of the first aspect of the present invention is:
The core,
A core part into which a part of the core is inserted, a bobbin having a first outer collar part and a second outer collar part provided at both ends in the winding axis direction of the core part,
A coil having a winding start line and a winding end line wound around the outer periphery of the winding core part;
A plurality of connection terminals fixed to the first outer casing,
The housing groove for housing the winding start line is formed along the winding axis direction of the core portion on the outer periphery of the core portion, and a plurality of locations along the winding direction of the core portion. Is formed,
A first guide groove for guiding the winding start line from the connection terminal to the accommodation groove is connected to the accommodation groove and formed at a plurality of locations in the first outer flange portion,
A third guide groove for extending the winding start line disposed in the housing groove to the outside of the bobbin is formed in the second outer flange portion so as to be connected to the housing groove;
A first insulating tape is wound around the core portion so as to cover the winding start line housed in the housing groove,
The winding start line is bent in a direction substantially perpendicular to the winding axis direction with the periphery of the first insulating tape on the second outer flange side as a fulcrum.

第１の本発明は、更なる特徴として、
「前記巻軸方向と垂直な面における前記巻芯部の断面は四角形状であり、
前記収容溝は、前記断面の外形において隣接する二辺の外形包絡線から内側に凹に形成されたものであり、前記断面の外形の四隅の少なくとも２箇所に形成されていること」、
「前記収容溝は、前記断面の外形の四隅全てに形成されていること」、
「前記巻き終わり線を前記コイル外周から前記接続端子に案内するための第２案内溝が、前記第１外鍔部に複数箇所に形成されており、
前記巻き終わり線が前記第２案内溝に配置されていること」、
「前記コイル外周に第２絶縁テープが少なくとも巻回方向に１周巻回されていること」、を含む。 The first aspect of the present invention is as a further feature,
“A cross section of the core portion in a plane perpendicular to the winding axis direction is a square shape,
The storage groove is formed inwardly from the outer envelope of two sides adjacent to each other in the outer shape of the cross section, and is formed in at least two places of the four corners of the outer shape of the cross section. ''
"The receiving groove is formed in all four corners of the outer shape of the cross section",
“Second guide grooves for guiding the winding end wire from the outer periphery of the coil to the connection terminal are formed at a plurality of locations in the first outer flange portion,
The winding end line is disposed in the second guide groove ",
“The second insulating tape is wound around the coil outer circumference at least once in the winding direction”.

また、第２の本発明のコイル部品は、
コアと、
前記コアの一部が挿入された巻芯部と、前記巻芯部の巻軸方向両端に設けられた第１外鍔部と第２外鍔部を有するボビンと、
前記巻芯部の外周に巻回された、巻き始め線と巻き終わり線を有するコイルと、
前記第１外鍔部に固定された複数の接続端子と、を備え、
前記巻き始め線を収容するための収容溝が、前記巻芯部の外周に前記巻芯部の巻軸方向に沿って形成されていると共に、前記巻芯部の巻回方向に沿って複数箇所に形成されており、
前記巻き始め線を前記接続端子から前記収容溝に案内するための第１案内溝が、前記収容溝に連接して、前記第１外鍔部に複数箇所に形成されており、
前記収容溝に配置された前記巻き始め線を前記ボビン外方に引き延ばすための第３案内溝が、前記収容溝に連接して前記第２外鍔部に形成されており、
前記第３案内溝に突部が設けられており、
前記巻き始め線は、前記突部を支点として巻軸方向と略直角方向に折り曲げられている
ことを特徴とする。 The coil component of the second invention is
The core,
A core part into which a part of the core is inserted, a bobbin having a first outer collar part and a second outer collar part provided at both ends in the winding axis direction of the core part,
A coil having a winding start line and a winding end line wound around the outer periphery of the winding core part;
A plurality of connection terminals fixed to the first outer casing,
The housing groove for housing the winding start line is formed along the winding axis direction of the core portion on the outer periphery of the core portion, and a plurality of locations along the winding direction of the core portion. Is formed,
A first guide groove for guiding the winding start line from the connection terminal to the accommodation groove is connected to the accommodation groove and formed at a plurality of locations in the first outer flange portion,
A third guide groove for extending the winding start line disposed in the housing groove to the outside of the bobbin is formed in the second outer flange portion so as to be connected to the housing groove;
A protrusion is provided in the third guide groove,
The winding start line is bent in a direction substantially perpendicular to the winding axis direction with the protrusion as a fulcrum.

第２の本発明は、更なる特徴として、
「前記収容溝に収容された前記巻き始め線を覆うように、第１絶縁テープが前記第１外鍔部のみに接しながら前記巻芯部に巻回されていること」を含む。 The second aspect of the present invention is as a further feature,
“The first insulating tape is wound around the core portion so as to cover only the first outer flange portion so as to cover the winding start line accommodated in the accommodation groove”.

本発明によれば、巻線の自動化をできつつ、巻芯部の巻回方向にある複数の収容溝に巻き始め線が選択的に配置されると、巻芯部外周での巻き始めの位置が変わるため、１ターン未満の巻数を調整できて、インダクタンス特性の微調整が容易にできる。   According to the present invention, when the winding start line is selectively disposed in the plurality of receiving grooves in the winding direction of the core portion while the winding can be automated, the winding start position on the outer periphery of the core portion Therefore, the number of turns of less than one turn can be adjusted, and fine adjustment of the inductance characteristics can be easily performed.

本発明の実施形態に係るコイル部品の分解斜視図であって、コイルを省略して示している。It is a disassembled perspective view of the coil components which concern on embodiment of this invention, Comprising: The coil is abbreviate | omitted and shown. 本発明の実施形態に係るコイル部品の完成斜視図である。It is a completion perspective view of the coil component which concerns on embodiment of this invention. 本発明の実施形態に係るコイル部品の組立手順を説明するためにあり、（ａ）は立面図、（ｂ）は、（ａ）のＡ−Ａ線の矢視断面図である。It is for demonstrating the assembly procedure of the coil components which concern on embodiment of this invention, (a) is an elevation, (b) is the arrow sectional drawing of the AA line of (a). 本発明の実施形態に係るコイル部品の組立手順を説明するためにあり、（ａ）は立面図、（ｂ）は、（ａ）のＢ−Ｂ線の矢視断面図である。It is for demonstrating the assembly procedure of the coil components which concern on embodiment of this invention, (a) is an elevation view, (b) is arrow sectional drawing of the BB line of (a). 本発明の実施形態に係るコイル部品の組立手順を説明するためにあり、（ａ）は立面図、（ｂ）は、（ａ）のＣ−Ｃ線の矢視断面図である。It is for demonstrating the assembly procedure of the coil components which concern on embodiment of this invention, (a) is an elevation view, (b) is arrow sectional drawing of CC line of (a). 図５（ｂ）の矢視Ｄの拡大図を示す。The enlarged view of the arrow D of FIG.5 (b) is shown. 本発明の実施形態の変形例１に係るコイル部品の特徴を説明するための立面図である。It is an elevation for demonstrating the characteristic of the coil component which concerns on the modification 1 of embodiment of this invention. 本発明の実施形態の変形例２に係るコイル部品の特徴を説明するための立面図である。It is an elevation for demonstrating the characteristic of the coil component which concerns on the modification 2 of embodiment of this invention.

以下、図面に基づいて本発明の実施の形態を例示的に説明する。   Hereinafter, embodiments of the present invention will be exemplarily described based on the drawings.

（実施形態）
まず、本発明の実施形態に係るコイル部品１の構成を図１〜図６により説明する。 (Embodiment)
First, the structure of the coil component 1 which concerns on embodiment of this invention is demonstrated with reference to FIGS.

実施形態におけるコイル部品１は、縦型のチョークコイルであり、ボビン１０と、コイル７０と、接続端子７７と、コア８０を備えている。   The coil component 1 in the embodiment is a vertical choke coil, and includes a bobbin 10, a coil 70, a connection terminal 77, and a core 80.

ボビン１０は、絶縁性樹脂により成形されており、巻芯部１１と第１外鍔部５１と第２外鍔部５２を有する。
巻芯部１１は筒状に形成されており、巻芯部１１の筒軸方向は巻軸方向（図３（ａ）のＺ方向）となっている。
第１外鍔部５１は、巻芯部１１の巻軸方向の一端に一体成形されている。
第２外鍔部５２は、巻芯部１１の巻軸方向の他端に一体成形されている。 The bobbin 10 is formed of an insulating resin and includes a core part 11, a first outer flange part 51, and a second outer flange part 52.
The core part 11 is formed in a cylindrical shape, and the cylinder axis direction of the core part 11 is the winding axis direction (Z direction in FIG. 3A).
The first outer flange portion 51 is integrally formed at one end of the winding core portion 11 in the winding axis direction.
The second outer flange portion 52 is integrally formed with the other end of the winding core portion 11 in the winding axis direction.

コイル７０は、巻芯部１１の外周に単線の線材で積層された巻回部７５と、巻き始め線７３と、巻き終わり線７４を有する。   The coil 70 includes a winding portion 75, a winding start wire 73, and a winding end wire 74 that are laminated on the outer periphery of the winding core portion 11 with a single wire.

巻軸方向と垂直な面における巻芯部１１の断面の外形は、短辺１２と長辺１３を有する長方形状に形成されており、巻芯部１１は、第１面〜第４面２１〜２４を有する。この断面の外形は長方形状のみならず、正方形状、菱形形状、平行四辺形状、台形状の四角形状であればよい。
第１面２１は、短辺１２を有し、平面状に形成されている。巻軸方向に垂直な面における第１面２１の両端には巻軸方向と並行に形成された第１収容溝３１と第２収容溝３２が形成されている。
第２面２２は、短辺１２を有し、平面状に形成されて、第１面２１と互いに対向して並行に配されており、巻軸方向に垂直な面における第２面２２の両端には巻軸方向と並行に形成された第３収容溝３３と第４収容溝３４が形成されている。
第３面２３と第４面２４は、長辺１３を有し、平面状に形成されており、第１面２１と第２面２２の間にあって互いに対向して並行に配されている。
第１〜第４収容溝３１〜３４は巻き始め線７３を収容するためにある。第１〜第４収容溝３１〜３４は、巻軸方向に沿って第１外鍔部側の巻芯部１１の一端から第２外鍔部５２側の巻芯部の他端まで連続して並行に形成されており、巻芯部の巻回方向（Ｚ方向を中心とする周回方向）に沿って巻芯部１１の断面外形の四隅全てに形成されている。
つまり、巻き始め線７３を収容するための収容溝３１〜３４は、巻芯部１１の外周に巻芯部１１の巻軸方向に沿って形成されていると共に、巻芯部１１の巻回方向に沿って４箇所に形成されている。 The outer shape of the cross section of the core part 11 in a plane perpendicular to the winding axis direction is formed in a rectangular shape having a short side 12 and a long side 13, and the core part 11 includes the first surface to the fourth surface 21 to 21. 24. The outer shape of the cross section is not limited to a rectangular shape, but may be a square shape, a rhombus shape, a parallelogram shape, or a trapezoidal square shape.
The first surface 21 has a short side 12 and is formed in a planar shape. A first accommodation groove 31 and a second accommodation groove 32 formed in parallel with the winding axis direction are formed at both ends of the first surface 21 in a plane perpendicular to the winding axis direction.
The second surface 22 has a short side 12, is formed in a planar shape, and is arranged in parallel to face the first surface 21. Both ends of the second surface 22 are perpendicular to the winding axis direction. A third housing groove 33 and a fourth housing groove 34 are formed in parallel with the winding axis direction.
The 3rd surface 23 and the 4th surface 24 have the long side 13, are formed in planar shape, and are distribute | arranged in parallel between the 1st surface 21 and the 2nd surface 22, mutually opposing.
The first to fourth accommodation grooves 31 to 34 are for accommodating the winding start wire 73. The 1st-4th accommodation grooves 31-34 continue from the one end of the core part 11 by the side of the 1st outer collar part to the other end of the core part by the side of the 2nd outer collar part 52 along the winding-axis direction. They are formed in parallel, and are formed at all four corners of the cross-sectional outer shape of the core part 11 along the winding direction of the core part (circumferential direction centering on the Z direction).
That is, the housing grooves 31 to 34 for housing the winding start wire 73 are formed along the winding axis direction of the core portion 11 on the outer periphery of the core portion 11 and the winding direction of the core portion 11. Are formed at four locations.

第１〜第４収容溝３１〜３４について説明する。
例えば、第１収容溝３１は、図６に示すように、巻芯部１１の断面外形の四隅の１つにおいて隣接する短辺１２と長辺１３との外形包絡線３６から内側に凹んで形成されている。この第１収容溝３１は、巻軸方向に垂直な断面において、巻き始め線の断面の外形を全て内包できる大きさである。つまり、巻き始め線の断面外形の全てが、第１収容溝３１に収容できる。
本例の第１収容溝３１は、断面直角三角形状に形成されており、２つの直線部３５と、外形包絡線３６を有する。２つの直線部３５は直角に形成されており、巻き始め線７３は２つの直線部３５に接して配され、外形包絡線３６に非接触となっている。
このように第１収容溝３１が巻芯部１１に形成されており、第２〜第４収容溝３２〜３４も、第１収容溝３１と同じように、巻芯部１１の断面外形の四隅の残り３箇所にそれぞれ形成されている。
また、本例では、図６に示すように、第１収容溝３１に巻き始め線７３が配置されると、第２〜第４収容溝３２〜３４には巻き始め線７３が配置されないものである。つまり、第１〜第４収容溝３１〜３４のいずれか１箇所のみに巻き始め線７３が配置されるものである。 The first to fourth accommodation grooves 31 to 34 will be described.
For example, as shown in FIG. 6, the first receiving groove 31 is formed inwardly from the outer envelope 36 of the short side 12 and the long side 13 adjacent to each other at one of the four corners of the cross-sectional outer shape of the core 11. Has been. The first receiving groove 31 has a size capable of including the entire outer shape of the cross section of the winding start line in a cross section perpendicular to the winding axis direction. That is, the entire cross-sectional outline of the winding start line can be accommodated in the first accommodation groove 31.
The first accommodation groove 31 of this example is formed in a right-angled triangular section, and has two straight portions 35 and an outer envelope 36. The two straight portions 35 are formed at right angles, and the winding start line 73 is disposed in contact with the two straight portions 35 and is not in contact with the outer envelope 36.
Thus, the 1st accommodation groove 31 is formed in the core part 11, and the 2nd-4th accommodation grooves 32-34 are the four corners of the cross-sectional external shape of the core part 11 similarly to the 1st accommodation groove 31. Are formed at the remaining three locations.
Further, in this example, as shown in FIG. 6, when the winding start line 73 is arranged in the first accommodation groove 31, the winding start line 73 is not arranged in the second to fourth accommodation grooves 32 to 34. is there. That is, the winding start line 73 is disposed only in any one of the first to fourth housing grooves 31 to 34.

第１外鍔部５１は、巻芯部１１の巻軸方向と垂直な方向となる径方向外側へ向けて突出する略矩形板状に形成されている。この第１外鍔部５１は、巻き始め線７３を接続端子７７から第１〜第４収容溝３１〜３４に案内するための第１案内溝６１と、巻き終わり線７４をコイル外周から接続端子７７に案内にするための第２案内溝６２を有する。
第１案内溝６１は、第１〜第４収容溝３１〜３４にそれぞれ連接する案内溝となっており４箇所有する。
第２案内溝６２は、巻き終わり線７４をコイル外周から接続端子７７に案内するためにある。第２案内溝６２は、８箇所形成されており、第１案内溝６１の４箇所と、前記第１案内溝６１以外の４箇所有している。
なお、巻き始め線と巻き終わり線は、第１案内溝６１と第２案内溝６２に、それぞれ別々の溝に配置されてもよいし、１つの溝に一緒に配置されてもよい。
第２外鍔部５２は、巻芯部１１の巻軸方向と垂直な方向となる径方向外側へ向けて突出する略矩形板状に形成されている。第２外鍔部５２には、第１〜第４収容溝３１〜３４に連接する第３案内溝６５が４箇所形成されている。第３案内溝６５は、巻き始め線７３を接続端子７７から、第１案内溝６１と、第１〜第４収容溝３１〜３４のどれか１箇所に配置した際に、巻き始め線７３を図３（ａ）の図面上方向であるボビン外方に引き延ばすために形成されている。 The first outer flange portion 51 is formed in a substantially rectangular plate shape that protrudes outward in the radial direction, which is a direction perpendicular to the winding axis direction of the core portion 11. The first outer flange 51 includes a first guide groove 61 for guiding the winding start wire 73 from the connection terminal 77 to the first to fourth housing grooves 31 to 34, and a winding end wire 74 from the outer periphery of the coil to the connection terminal. 77 has a second guide groove 62 for guiding.
The first guide groove 61 is a guide groove connected to each of the first to fourth accommodation grooves 31 to 34 and has four locations.
The second guide groove 62 is provided to guide the winding end wire 74 from the outer periphery of the coil to the connection terminal 77. The second guide groove 62 is formed at eight places, and has four places of the first guide groove 61 and four places other than the first guide groove 61.
Note that the winding start line and the winding end line may be arranged in separate grooves in the first guide groove 61 and the second guide groove 62, or may be arranged together in one groove.
The second outer flange portion 52 is formed in a substantially rectangular plate shape that protrudes outward in the radial direction, which is a direction perpendicular to the winding axis direction of the core portion 11. The second outer flange portion 52 has four third guide grooves 65 connected to the first to fourth housing grooves 31 to 34. The third guide groove 65 has a winding start line 73 when the winding start line 73 is arranged at any one of the first guide groove 61 and the first to fourth accommodation grooves 31 to 34 from the connection terminal 77. It is formed to extend outward from the bobbin, which is the upward direction of the drawing in FIG.

コア８０は、中脚８１と側脚８４を有するＥ型コアより形成されている。中脚８１は、巻芯部１１に挿入されて固定されている。中脚８１の巻芯部１１への挿入方向は、巻軸方向と並行であり、挿入方向と垂直な面における中脚８１の断面外形は、短辺８２と長辺８３を有する長方形状に形成されている。   The core 80 is formed of an E-type core having a middle leg 81 and a side leg 84. The middle leg 81 is inserted into the core part 11 and fixed. The insertion direction of the middle leg 81 into the core part 11 is parallel to the winding axis direction, and the cross-sectional outer shape of the middle leg 81 in a plane perpendicular to the insertion direction is formed in a rectangular shape having a short side 82 and a long side 83. Has been.

コア８０の中脚８１の挿入方向に垂直な面における断面の外形は、巻軸方向に垂直な面における巻芯部１１の断面の内形とほぼ同形に形成されている。   The outer shape of the cross section in the plane perpendicular to the insertion direction of the middle leg 81 of the core 80 is formed substantially the same as the inner shape of the cross section of the core portion 11 in the plane perpendicular to the winding axis direction.

接続端子７７は、図３（ａ）に示すように、第１外鍔部５１の巻軸方向下端に下方に向けて１０本固定されており、この接続端子７７には巻き始め線７３と巻き終わり線７４が電気的に接続されている。   As shown in FIG. 3A, ten connection terminals 77 are fixed downward at the lower end in the winding axis direction of the first outer flange portion 51, and the winding start line 73 and the winding wire are wound around the connection terminals 77. End line 74 is electrically connected.

次に、上記構成からなる実施形態のコイル部品１の組立方法について説明する。   Next, a method for assembling the coil component 1 according to the embodiment having the above configuration will be described.

まず、線材と、接続端子７７が固定されたボビン１０と、絶縁テープを用意して、これらを自動巻線機にセットする。図３に示すように、自動巻線機により、巻き始め線７３の先端部が１つの接続端子７７に絡げられて仮固定される。そして、巻き始め線７３が、例えば、第１案内溝６１、第１収容溝３１、第３案内溝６５の順に、配置されて、図３（ａ）の図面上方向に引き延ばされる。つまり、巻き始め線７３が、ある第１案内溝６１と、この第１案内溝６１に連接する収容溝と、この収容溝と連接する第３案内溝の順に配置される。
その後、図４（ａ）に示すように、第１絶縁テープ９１が、巻芯部１１に全周少なくとも巻回方向に１回、巻回される。この第１絶縁テープ９１は、第１外鍔部側の巻芯部の一端から第２外鍔部側の巻芯部の他端まで、巻軸方向に沿って連続して巻回されている。すると、巻き始め線が収容された第１収容溝３１の開口は、第１絶縁テープ９１に覆われる。この第１絶縁テープ９１は、第１収容溝３１に収容された巻き始め線７３に接しない。
そして、図５（ａ）に示すように、第１絶縁テープ９１が巻芯部１１に巻回された後に、第１収容溝３１に収容された巻き始め線７３は、第２外鍔部側の第１絶縁テープ９１の周縁を支点として巻軸方向と略直角方向に折り曲げられる。 First, the wire rod, the bobbin 10 to which the connection terminal 77 is fixed, and the insulating tape are prepared, and these are set in the automatic winding machine. As shown in FIG. 3, the leading end of the winding start wire 73 is entangled with one connection terminal 77 and temporarily fixed by an automatic winding machine. And the winding start line 73 is arrange | positioned in order of the 1st guide groove 61, the 1st accommodating groove 31, and the 3rd guide groove 65, for example, and is extended in drawing upper direction of Fig.3 (a). That is, the winding start line 73 is arranged in the order of a certain first guide groove 61, an accommodation groove connected to the first guide groove 61, and a third guide groove connected to the accommodation groove.
Thereafter, as shown in FIG. 4A, the first insulating tape 91 is wound around the winding core portion 11 at least once in the entire winding direction. The first insulating tape 91 is continuously wound along the winding axis direction from one end of the core portion on the first outer flange side to the other end of the core portion on the second outer flange side. . Then, the opening of the first accommodation groove 31 in which the winding start line is accommodated is covered with the first insulating tape 91. The first insulating tape 91 does not contact the winding start line 73 accommodated in the first accommodation groove 31.
Then, as shown in FIG. 5A, after the first insulating tape 91 is wound around the core portion 11, the winding start line 73 accommodated in the first accommodation groove 31 is on the second outer flange side. The first insulating tape 91 is bent in a direction substantially perpendicular to the winding axis direction with the periphery of the first insulating tape 91 as a fulcrum.

その後、巻き始め線７３が、巻芯部１１の他端から一端に向かうように巻軸方向に巻き始められて、線材が巻芯部１１に所定数積層されて、コイル７０の巻回部７５が巻回される。
また、巻き終わり線７４が、コイル外周から第２案内溝６２のどれか１つに案内されて、巻き始め線が絡げられた接続端子とは別の接続端子に絡げられて仮固定される。 Thereafter, the winding start wire 73 starts to be wound in the winding axis direction from the other end of the core portion 11 toward one end, and a predetermined number of wires are stacked on the core portion 11, so that the winding portion 75 of the coil 70 is wound. Is wound.
In addition, the winding end wire 74 is guided from the outer periphery of the coil to one of the second guide grooves 62, and is temporarily entangled with a connection terminal different from the connection terminal with which the winding start wire is entangled. The

その後、コイル外周には第２絶縁テープ９２が巻回される。第２絶縁テープ９２は、コイル７０の全周、巻回方向に少なくとも１回、巻回される。この第２絶縁テープ９２は、巻芯部の一端から巻芯部の他端まで巻軸方向に沿って連続して巻回される。
その後、接続端子７７が半田層に浸されることにより、巻き始め線７３と巻き終わり線７４が接続端子７７に半田接続される。 Thereafter, the second insulating tape 92 is wound around the outer periphery of the coil. The second insulating tape 92 is wound at least once in the entire winding direction of the coil 70. The second insulating tape 92 is continuously wound along the winding axis direction from one end of the core portion to the other end of the core portion.
Thereafter, the connection terminal 77 is immersed in the solder layer, so that the winding start line 73 and the winding end line 74 are solder-connected to the connection terminal 77.

次に、２つのＥ型コアを用意する。図１に示すように、ボビンの巻芯部１１の筒状内に２つＥ型コアの中脚８１が挿入される。すると、中脚８１の断面外形の短辺８２と長辺８３は、それぞれ巻芯部１１の断面内形の短辺１４と長辺１５に対向して配置されて、巻芯部１１の長辺１３は、コア８０の側脚８４にコイル７０を介して対向して配置される。この２つＥ型コアは、ボビン１０に接着剤により固定される。そして、図２に示すように、日の字型コアが形成されて閉磁路を形成して、コイル部品１となる。
なお、必要に応じて、コイル７０を１次巻線としてコイル外周と第２絶縁テープ９２との間に、第３絶縁テープと２次巻線が巻回されてもいい。
また、コア８０は、日の字型コアとなっているが、ロの字型コアでもよい。またコア８０は、分割された複数のコアが組み合わされて日の字型コアあるいはロの字型コアになるものを含む。 Next, two E-type cores are prepared. As shown in FIG. 1, two E-core middle legs 81 are inserted into the cylindrical shape of the bobbin core 11. Then, the short side 82 and the long side 83 of the cross-sectional outer shape of the middle leg 81 are arranged to face the short side 14 and the long side 15 of the inner cross-section of the core part 11, respectively, and the long side of the core part 11 13 is arranged to face the side leg 84 of the core 80 with the coil 70 interposed therebetween. The two E-type cores are fixed to the bobbin 10 with an adhesive. Then, as shown in FIG. 2, a Japanese-shaped core is formed to form a closed magnetic circuit, and the coil component 1 is obtained.
If necessary, the third insulating tape and the secondary winding may be wound between the outer periphery of the coil and the second insulating tape 92 with the coil 70 as the primary winding.
The core 80 is a Japanese character core, but may be a square core. The core 80 includes one in which a plurality of divided cores are combined to form a Japanese character core or a square character core.

特許文献１では、接続端子に接続された巻き始め線とコイル内周との絶縁距離を確保する絶縁チューブを必要とするため巻線の自動化ができなかった。
また、特許文献２のような構成では、巻線の自動化ができる可能性があるものの、この巻線用ボビンの外周に配置されたコアにコイル外形が近接して巻回できない場合に、インダクタンス特性の微調整が難しかった。
そこで、上記構成からなる実施形態のコイル部品１は、コア８０と、コア８０の一部が挿入された巻芯部１１と、巻芯部１１の巻軸方向両端に設けられた第１外鍔部５１と第２外鍔部５２を有するボビン１０と、巻芯部１１の外周に巻回された、巻き始め線７３と巻き終わり線７４を有するコイル７０と、第１外鍔部５１に固定された接続端子７７と、を備えている。
そして、巻き始め線７３を収容するための収容溝３１〜３４が、巻芯部１１の外周に巻芯部１１の巻軸方向に沿って形成されていると共に、巻芯部１１の巻回方向に沿って複数箇所に形成されている。
また、巻き始め線７３を接続端子７７から収容溝３１〜３４に案内するための第１案内溝６１が、第１外鍔部５１に複数箇所に形成されている。
また、収容溝３１〜３４に収容された巻き始め線７３を覆うように、巻芯部１１に第１絶縁テープ９１が巻回されている。
また、巻き始め線７３は、第２外鍔部側の第１絶縁テープ９１の周縁を支点として巻軸方向と略直角方向に折り曲げられている。 In patent document 1, since the insulation tube which ensures the insulation distance of the winding start wire | line connected to the connection terminal and a coil inner periphery is needed, automation of winding was not able to be performed.
Further, in the configuration as disclosed in Patent Document 2, although there is a possibility that the winding can be automated, when the coil outer shape cannot be wound close to the core disposed on the outer periphery of the bobbin for winding, the inductance characteristics It was difficult to make fine adjustments.
Therefore, the coil component 1 of the embodiment having the above-described configuration includes the core 80, the core part 11 into which a part of the core 80 is inserted, and the first outer casing provided at both ends in the winding axis direction of the core part 11. The bobbin 10 having the portion 51 and the second outer flange portion 52, the coil 70 having the winding start wire 73 and the winding end wire 74 wound around the outer periphery of the core portion 11, and the first outer flange portion 51 are fixed. Connection terminal 77 is provided.
And the accommodation grooves 31-34 for accommodating the winding start line 73 are formed in the outer periphery of the core part 11 along the winding-axis direction of the core part 11, and the winding direction of the core part 11 is provided. Are formed at a plurality of locations.
In addition, first guide grooves 61 for guiding the winding start wire 73 from the connection terminal 77 to the housing grooves 31 to 34 are formed in the first outer flange portion 51 at a plurality of locations.
Moreover, the 1st insulating tape 91 is wound around the core part 11 so that the winding start line 73 accommodated in the accommodation grooves 31-34 may be covered.
The winding start line 73 is bent in a direction substantially perpendicular to the winding axis direction with the peripheral edge of the first insulating tape 91 on the second outer flange side as a fulcrum.

よって、巻き始め線７３が収容溝に配置されることにより、絶縁チューブを用いることなく、巻き始め線とコイルとの絶縁距離を確保できると共に、巻き始め線は第２外鍔部側の第１絶縁テープの周縁を支点として巻軸方向と略直角方向に折り曲げられるため、線材の巻線工程において自動化できて、作業効率が向上できる。
また、線材の巻線時において、巻き始め線が巻芯部の巻回方向にある複数の収容溝３１〜３４に選択的に配置されると、巻芯部外周での巻き始めの位置が変わるため、１ターン未満の調整ができて、インダクタンス特性の微調整が容易にできる。
このように、巻き始め線とコイル内周との絶縁距離を確保できると共に巻線の自動化ができて、さらに、１個のボビンでインダクタンス特性を容易に微調整できる。 Therefore, by arranging the winding start wire 73 in the accommodation groove, it is possible to secure an insulation distance between the winding start wire and the coil without using an insulating tube, and the winding start wire is the first on the second outer flange side. Since it can be bent in a direction substantially perpendicular to the winding axis direction with the peripheral edge of the insulating tape as a fulcrum, it can be automated in the wire winding process and work efficiency can be improved.
Further, when the winding start wire is selectively disposed in the plurality of receiving grooves 31 to 34 in the winding direction of the core portion during winding of the wire rod, the winding start position on the outer periphery of the core portion changes. Therefore, adjustment of less than one turn can be performed, and fine adjustment of inductance characteristics can be easily performed.
Thus, the insulation distance between the winding start line and the inner circumference of the coil can be secured, the winding can be automated, and the inductance characteristic can be easily finely adjusted with one bobbin.

また、巻軸方向と垂直な面における巻芯部の断面は四角形状であり、収容溝３１〜３４は、前記断面の外形において隣接する二辺の外形包絡線３６から内側に凹に形成されたものであり、前記断面の外形の四隅の少なくとも２箇所に形成されている。
よって、巻軸方向と垂直な面における巻芯部１１の断面の外形の四隅において少なくとも２箇所で線材の折り曲げ角度が緩やかになり線材の巻回時に線材の皮膜に傷が付きにくく、線材を巻きやすくできて、線材の潰れ防止や巻き膨らみ防止ができる。 Moreover, the cross section of the core part in a plane perpendicular to the winding axis direction is a quadrangular shape, and the receiving grooves 31 to 34 are formed inwardly from the two outer envelopes 36 adjacent to each other in the outer shape of the cross section. It is formed in at least two places of the four corners of the outer shape of the cross section.
Therefore, the bending angle of the wire becomes gentle at at least two locations in the four corners of the outer shape of the cross section of the core part 11 in the plane perpendicular to the winding axis direction, and the wire film is not easily damaged when winding the wire. This makes it easy to prevent the wire rod from being crushed or curled up.

また、収容溝３１〜３４は、前記断面の外形の四隅全てに形成されている。
よって、巻軸方向と垂直な面における巻芯部１１の断面の外形の四隅全てで線材の折り曲げ角度が緩やかになり線材の巻回時に線材の皮膜に傷が付きにくく、線材を巻きやすくできて、線材の潰れ防止や巻き膨らみ防止ができる。 The receiving grooves 31 to 34 are formed at all four corners of the outer shape of the cross section.
Accordingly, the bending angle of the wire becomes gentle at all four corners of the outer shape of the cross section of the core part 11 in the plane perpendicular to the winding axis direction, so that the wire film is not easily damaged when winding the wire, and the wire can be easily wound. The wire can be prevented from being crushed and swelled.

また、巻き終わり線をコイル外周から接続端子に案内するための第２案内溝が、第１外鍔部に複数箇所に形成されている。
また、巻き終わり線が第２案内溝に配置されている。
このため、巻き終わり線がボビンの巻回方向にある複数の第２案内溝６２に選択的に配置されると、コイル外周での巻き終わりの位置が変わるため、１ターン未満の調整ができて、インダクタンス特性の微調整が容易にできる。
また、コイル外周に第２絶縁テープ９２が少なくとも巻回方向に１周巻回されている。
なお、インダクタンス特性の微調整は、巻き始め線が巻芯部の巻回方向にある複数の収容溝に選択的に配置されること、あるいは、巻き終わり線がボビンの巻回方向にある複数の第２案内溝に選択的に配置されることのどちらか一方あるいは両方の組み合わせによってできる。 Moreover, the 2nd guide groove for guiding a winding end wire | line from a coil outer periphery to a connection terminal is formed in the 1st outer collar part in multiple places.
Moreover, the winding end line is arrange | positioned at the 2nd guide groove.
For this reason, when the winding end line is selectively disposed in the plurality of second guide grooves 62 in the bobbin winding direction, the position of the winding end on the outer periphery of the coil changes, so that adjustment of less than one turn can be performed. In addition, fine adjustment of the inductance characteristics can be easily performed.
Further, the second insulating tape 92 is wound around the outer periphery of the coil at least once in the winding direction.
The fine adjustment of the inductance characteristic is performed by selectively arranging the winding start line in the plurality of receiving grooves in the winding direction of the winding core part, or the winding end line in the winding direction of the bobbin. This can be selectively arranged in the second guide groove or by a combination of both.

（変形例１）
上記実施形態では、第１絶縁テープ９１は、巻芯部１１の一端から他端まで、巻軸方向に沿って連続して形成されて、巻芯部に少なくとも巻回方向に１周巻回されていることにより、第１絶縁テープ９１の周縁が、巻き始め線の折り曲げ支点となり、また、収容溝に収容された巻き始め線とコイル内周との絶縁距離が確保できるが、これに限らない。
図７に示すように、巻き始め線の折り曲げ支点となる突部９６が第２外鍔部５２の第３案内溝６５に設けられて、また、収容溝に収容された巻き始め線７３とコイル内周との絶縁距離を確保できるならば、第１絶縁テープ９１は、第１外鍔部５１に接しながら（巻芯部１１の一端から）巻軸方向に沿って第２外鍔部５２に接しない形状であればよく、つまり、第１絶縁テープ９１は、巻軸方向の巻芯部１１の第１外鍔部のみに接して設けられていればよい。詳述すれば、接続端子が半田層に浸された際に、巻き始め線は、接続端子付近で皮膜が剥がれるため、その皮膜の剥がれた巻き始め線が、第１絶縁テープにより巻軸方向の巻芯部１１の一端から一部覆われることで、収容溝に収容された巻き始め線７３とコイル内周との絶縁距離を確保するものである。
この場合、第２外鍔部５２の第３案内溝６５に突部９６が設けられるため、巻き始め線は、突部９６を支点として巻軸方向と略直角方向に折り曲げられている。また、収容溝に収容された巻き始め線を覆うように、第１絶縁テープ９１が第１外鍔部５１のみに接しながら巻芯部に巻回されている。
よって、巻き始め線とコイル内周との絶縁距離を確保できると共に巻線の自動化ができて、さらに、１個のボビンでインダクタンス特性を容易に微調整できて、さらにまた、第１絶縁テープの使用量を減らすことができる。 (Modification 1)
In the above embodiment, the first insulating tape 91 is continuously formed along the winding axis direction from one end to the other end of the core portion 11 and is wound around the winding core portion at least once in the winding direction. Accordingly, the peripheral edge of the first insulating tape 91 serves as a bending fulcrum of the winding start line, and an insulation distance between the winding start line accommodated in the accommodation groove and the coil inner circumference can be ensured, but this is not restrictive. .
As shown in FIG. 7, a projection 96 serving as a bending fulcrum of the winding start line is provided in the third guide groove 65 of the second outer flange 52, and the winding start wire 73 and the coil housed in the housing groove If the insulation distance from the inner periphery can be secured, the first insulating tape 91 is in contact with the first outer flange portion 51 (from one end of the core portion 11) to the second outer flange portion 52 along the winding axis direction. That is, the first insulating tape 91 only needs to be in contact with only the first outer flange portion of the core portion 11 in the winding axis direction. Specifically, when the connection terminal is immersed in the solder layer, the winding start line is peeled off in the vicinity of the connection terminal, so that the winding start line from which the coating has been peeled is removed in the winding axis direction by the first insulating tape. By covering a part from one end of the core part 11, the insulation distance between the winding start wire 73 accommodated in the accommodation groove and the inner circumference of the coil is ensured.
In this case, since the protrusion 96 is provided in the third guide groove 65 of the second outer flange 52, the winding start line is bent in a direction substantially perpendicular to the winding axis direction with the protrusion 96 as a fulcrum. Further, the first insulating tape 91 is wound around the winding core portion so as to cover only the first outer flange portion 51 so as to cover the winding start line accommodated in the accommodation groove.
Therefore, the insulation distance between the winding start line and the coil inner circumference can be secured, the winding can be automated, and the inductance characteristic can be easily fine-tuned with one bobbin. The amount used can be reduced.

（変形例２）
また、上記実施形態では、巻き始め線７３の断面外形の全てが、第１収容溝３１内に収容されて、第１絶縁テープ９１が巻芯部１１に巻回されているが、収容溝が実施形態よりさらに深く形成されて、巻き始め線とコイル内周との絶縁距離を十分に確保できるならば、第１絶縁テープ９１は巻芯部１１に巻回される必要はない。この場合、収容溝に収容された巻き始め線７３が、巻芯部１１での巻き始めの始点して、巻軸方向と略直角方向に折り曲げられるように、第２外鍔部の第３案内溝に、図８に示すような突部９６が設けられている。
この構成によるコイル部品の組立工程では、まず、巻き始め線７３が接続端子７７に絡げられて仮固定されて、巻き始め線７３が、例えば、第１案内溝６１、第１収容溝３１、第３案内溝６５の順に、配置される。その後、第１絶縁テープ９１が巻芯部１１に巻回されることなく、巻き始め線７３が、突部９６に係止されて突部９６を支点に巻軸方向と略直角方向に折り曲げられる。そして、巻き始め線７３が、巻芯部の他端から一端に沿って巻芯部１１に巻回され、巻芯部１１にコイル７０が巻回される。この構成においても、巻き始め線７３は突部９６を巻芯部の巻き始めの始点として、線材が巻芯部に弛むことなく巻回される。そして、巻き終わり線７４が、コイル外周から第２案内溝６２に配されて、巻き始め線が絡げられた接続端子とは別の接続端子に絡げられて仮固定される。そして、コイル外周に第２絶縁テープ９２が巻回される。各接続端子が半田層に浸されることにより、巻き始め線と巻き終わり線が各接続端子に半田接続される。
その後、ボビンの巻芯部１１の筒状内にはＥ型コアの中脚８１が組み込まれて日の字型コアが形成され、コイル部品１となる。
この場合、巻き始め線とコイル内周との絶縁距離を確保できると共に巻線の自動化ができて、さらに、１個のボビンでインダクタンス特性を容易に微調整できて、さらにまた、部品点数を少なくできる。 (Modification 2)
Moreover, in the said embodiment, all the cross-sectional external shapes of the winding start line 73 are accommodated in the 1st accommodating groove 31, and the 1st insulating tape 91 is wound around the core part 11, but an accommodating groove is The first insulating tape 91 does not need to be wound around the core 11 as long as it is formed deeper than the embodiment and a sufficient insulation distance between the winding start line and the coil inner periphery can be secured. In this case, the third guide of the second outer flange portion is formed such that the winding start line 73 accommodated in the accommodation groove is bent in a direction substantially perpendicular to the winding axis direction from the starting point of the winding start at the core portion 11. A protrusion 96 as shown in FIG. 8 is provided in the groove.
In the assembly process of the coil component with this configuration, first, the winding start wire 73 is entangled with the connection terminal 77 and temporarily fixed, and the winding start wire 73 is, for example, the first guide groove 61, the first receiving groove 31, The third guide grooves 65 are arranged in this order. Thereafter, without winding the first insulating tape 91 around the core part 11, the winding start line 73 is locked to the protrusion 96 and is bent in a direction substantially perpendicular to the winding axis with the protrusion 96 as a fulcrum. . Then, the winding start wire 73 is wound around the core portion 11 along one end from the other end of the core portion, and the coil 70 is wound around the core portion 11. Also in this configuration, the winding start wire 73 is wound around the winding core portion without the slackening of the wire rod, with the protrusion 96 as the starting point of the winding start of the winding core portion. Then, the winding end wire 74 is arranged in the second guide groove 62 from the outer periphery of the coil, and is temporarily fixed by being entangled with a connection terminal different from the connection terminal with which the winding start wire is entangled. Then, the second insulating tape 92 is wound around the coil outer periphery. By immersing each connection terminal in the solder layer, the winding start line and the winding end line are solder-connected to each connection terminal.
Thereafter, the middle leg 81 of the E-shaped core is incorporated into the cylindrical shape of the bobbin core 11 to form a Japanese-shaped core, and the coil component 1 is obtained.
In this case, the insulation distance between the winding start wire and the inner circumference of the coil can be secured, the winding can be automated, the inductance characteristics can be easily fine-tuned with one bobbin, and the number of parts can be reduced. it can.

（変形例３）
また、上記実施形態では、絶縁テープ９１は、巻芯部１１に少なくとも巻回方向に１周巻回されており、巻軸方向の巻芯部１１の一端から他端まで、巻軸方向に沿って連続して巻回されているが、これに限らない。
第１絶縁テープ９１が、巻芯部１１の一端から他端まで、巻軸方向に沿って連続して巻回されているならば、巻芯部１１に巻回方向に１周巻回されずに、巻き始め線７３を収容した収容溝のみに、巻回方向に１周未満で巻回されたものでもよい。具体的には、第１絶縁テープ９１が、巻軸方向の巻芯部１１の一端から他端まで、巻軸方向に沿って連続して巻回されていると共に、巻回方向に例えば１／４周分巻回されて、巻き始め線７３を収容した収容溝の上面を覆ってその収容溝を閉塞しているものである。
この場合、巻き始め線とコイル内周との絶縁距離を確保できると共に巻線の自動化ができて、さらに、１個のボビンでインダクタンス特性を容易に微調整できて、さらにまた、部品の使用量を少なくできる。 (Modification 3)
Further, in the above embodiment, the insulating tape 91 is wound around the winding core portion 11 at least once in the winding direction, and extends from one end to the other end of the winding core portion 11 along the winding axis direction. However, the present invention is not limited to this.
If the first insulating tape 91 is continuously wound along the winding axis direction from one end to the other end of the winding core portion 11, it is not wound around the winding core portion 11 in the winding direction. In addition, it may be wound only in the accommodating groove that accommodates the winding start line 73 in less than one turn in the winding direction. Specifically, the first insulating tape 91 is continuously wound along the winding axis direction from one end to the other end of the winding core portion 11 in the winding axis direction. It is wound four times and covers the upper surface of the accommodation groove that accommodates the winding start wire 73 to close the accommodation groove.
In this case, the insulation distance between the winding start line and the inner circumference of the coil can be secured, the winding can be automated, and the inductance characteristics can be easily fine-tuned with one bobbin. Can be reduced.

（変形例４）
また、上記実施形態では、第１〜第４収容溝３１〜３４は、巻き始め線７３を収容できて、巻芯部の断面外形の四隅全てに巻芯部の巻軸方向に沿って形成されているが、この収容溝は、巻芯部の断面外形の四隅のうち２箇所ないし３箇所に形成された構成でもよい。この場合、線材の巻回時に、巻芯部の断面外形の四隅の内、２箇所ないし３箇所の線材の折り曲げ角度が直角から緩やかになるため、上記実施形態には僅かに及ばないものの、線材の巻回時に線材の皮膜に傷が付きにくく、線材を巻きやすくできる。
この場合、前記収容溝に配置された巻き始め線をボビン外方に引き延ばすための第３案内溝が、前記収容溝のみに連接して第２外鍔部に形成される。 (Modification 4)
Moreover, in the said embodiment, the 1st-4th accommodation grooves 31-34 can accommodate the winding start line 73, and are formed along the winding-axis direction of a core part in all the four corners of the cross-sectional external shape of a core part. However, the receiving groove may have a configuration formed at two or three positions among the four corners of the cross-sectional outer shape of the core portion. In this case, when winding the wire, the bending angle of the wire rods at two or three of the four corners of the cross-sectional outer shape of the core portion becomes gentle from a right angle. When the wire is wound, the film of the wire is hardly damaged, and the wire can be easily wound.
In this case, the 3rd guide groove for extending the winding start line arrange | positioned in the said accommodation groove to a bobbin outward is formed in a 2nd outer collar part connected only to the said accommodation groove.

（変形例５）
また、上記のコイル部品１は、縦型であり、接続端子７７は、２つある外鍔部のうち第１外鍔部のみに固定されていたが、これに限定されるものではない。本発明のコイル部品は横型でもよく、この場合の接続端子は２つある第１外鍔部と第２外鍔部にそれぞれ設けられる。
縦型のコイル部品（実施形態）では、巻き始め線７７を収容溝３１〜３４に案内するための第１案内溝６１が第１外鍔部５１のみに複数箇所に形成されていたが、横型のコイル部品では、巻き始め線７３を接続端子７７から収容溝に案内するための第１案内溝が、収容溝に連接して、第１外鍔部と第２外鍔部にそれぞれ複数箇所に形成される。
また縦型のコイル部品（実施形態）では、巻き終わり線をコイル外周から接続端子に案内するための第２案内溝が第１外鍔部のみに複数箇所に形成されていたが、横型のコイル部品では、巻き終わり線をコイル外周から接続端子に案内するための第２案内溝が第１外鍔部と第２外鍔部にそれぞれ複数箇所に形成される。 (Modification 5)
Moreover, although said coil component 1 is a vertical type and the connection terminal 77 was being fixed only to the 1st outer casing part among the two outer casing parts, it is not limited to this. The coil component of the present invention may be a horizontal type. In this case, two connection terminals are provided on the first outer casing portion and the second outer casing portion, respectively.
In the vertical coil component (embodiment), the first guide groove 61 for guiding the winding start wire 77 to the housing grooves 31 to 34 is formed only at the first outer flange portion 51 at a plurality of locations. In the coil component, the first guide groove for guiding the winding start wire 73 from the connection terminal 77 to the receiving groove is connected to the receiving groove, and the first outer flange portion and the second outer flange portion are respectively provided at a plurality of positions. It is formed.
In the vertical coil component (embodiment), the second guide groove for guiding the winding end line from the outer periphery of the coil to the connection terminal is formed at a plurality of locations only in the first outer flange portion. In the component, the second guide groove for guiding the winding end line from the outer periphery of the coil to the connection terminal is formed at a plurality of locations on the first outer flange portion and the second outer flange portion, respectively.

（変形例６）
また、上記の収容溝は、外形包絡線３６を有する断面直角三角形状に形成されているがこれに限定されない。例えば、巻き始め線の断面外形の全てが、収容溝内に収容されて、第１絶縁テープが、収容溝に収容された巻き始め線に接しなければ、収容溝は、上記外形包絡線３６を一辺とする多角形状でも、上記外形包絡線を円の一部を切断した部分とする変形断面円形状でもよい（変形例２は除く）。 (Modification 6)
Moreover, although the above-mentioned accommodation groove is formed in the cross-sectional right triangle shape which has the external envelope 36, it is not limited to this. For example, if all of the cross-sectional outline of the winding start line is accommodated in the accommodation groove and the first insulating tape does not contact the winding start line accommodated in the accommodation groove, the accommodation groove has the outer envelope 36 described above. It may be a polygonal shape having one side, or a deformed circular shape having the outer envelope as a portion obtained by cutting a part of a circle (except for Modification 2).

（変形例７）
また、上記の説明では、巻き始め線７３と収容溝との関係において、巻き始め線７３の断面外形の全てが、第１収容溝３１内に収容されて、第１絶縁テープ９１は、巻き始め線７３に接しないように構成されているが、巻き始め線の断面外形の大きさはこれに限定されない。第１絶縁テープ９１が巻芯部１１に巻回されていれば、第１収容溝に収容された巻き始め線が、第１収容溝３１から僅かにはみ出す大きさであり、第１絶縁テープ９１に接してもよい。（変形例１、２は除く）。 (Modification 7)
In the above description, in the relationship between the winding start line 73 and the housing groove, the entire cross-sectional outline of the winding start line 73 is housed in the first housing groove 31, and the first insulating tape 91 starts to wind. Although it is configured not to contact the wire 73, the size of the cross-sectional outer shape of the winding start line is not limited to this. If the first insulating tape 91 is wound around the core portion 11, the winding start line accommodated in the first accommodation groove has a size that slightly protrudes from the first accommodation groove 31. You may touch. (Excluding Modifications 1 and 2).

（変形例８）
また、上述の説明では、第１〜第４収容溝３１〜３４は、巻芯部１１の第１面〜第４面２１〜２４の内、第１〜第２面のみに形成されていたが、この形態に限らない。第１〜第４収容溝３１〜３４は、巻芯部１１の第１面〜第４面２１〜２４の内、第３〜第４面のみに形成されてもよい。 (Modification 8)
In the above description, the first to fourth accommodation grooves 31 to 34 are formed only on the first and second surfaces of the first surface to the fourth surfaces 21 to 24 of the core part 11. However, the present invention is not limited to this form. The first to fourth accommodation grooves 31 to 34 may be formed only on the third to fourth surfaces of the first surface to the fourth surfaces 21 to 24 of the core part 11.

１ コイル部品
１０ ボビン
１１ 巻芯部
１２ 巻芯部の断面外形の短辺
１３ 巻芯部の断面外形の長辺
１４ 巻芯部の断面内形の短辺
１５ 巻芯部の断面内形の長辺
２１ 第１面
２２ 第２面
２３ 第３面
２４ 第４面
３１ 第１収容溝
３２ 第２収容溝
３３ 第３収容溝
３４ 第４収容溝
３５ 直線部
３６ 外形包絡線
５１ 第１外鍔部
５２ 第２外鍔部
６１ 第１案内溝
６２ 第２案内溝
６５ 第３案内溝
７０ コイル
７３ 巻き始め線
７４ 巻き終わり線
７５ 巻回部
７７ 接続端子
８０ コア
８１ 中脚
８２ 中脚の断面外形の短辺
８３ 中脚の断面外形の長辺
８４ 側脚
９１ 第１絶縁テープ
９２ 第２絶縁テープ
９６ 突部 DESCRIPTION OF SYMBOLS 1 Coil components 10 Bobbin 11 Core part 12 Short side of cross-sectional outline of core part 13 Long side of cross-sectional outline of core part 14 Short side of cross-sectional shape of core part 15 Long length of cross-sectional form of core part Side 21 1st surface 22 2nd surface 23 3rd surface 24 4th surface 31 1st accommodating groove 32 2nd accommodating groove 33 3rd accommodating groove 34 4th accommodating groove 35 Linear part 36 Outer envelope 51 First outer collar part 52 Second outer flange 61 First guide groove 62 Second guide groove 65 Third guide groove 70 Coil 73 Winding start line 74 Winding end line 75 Winding part 77 Connection terminal 80 Core 81 Middle leg 82 Short side 83 Long side of cross-sectional outline of middle leg 84 Side leg 91 First insulating tape 92 Second insulating tape 96 Projection

Claims (7)

コアと、
前記コアの一部が挿入された巻芯部と、前記巻芯部の巻軸方向両端に設けられた第１外鍔部と第２外鍔部を有するボビンと、
前記巻芯部の外周に巻回された、巻き始め線と巻き終わり線を有するコイルと、
前記第１外鍔部に固定された複数の接続端子と、を備え、
前記巻き始め線を収容するための収容溝が、前記巻芯部の外周に前記巻芯部の巻軸方向に沿って形成されていると共に、前記巻芯部の巻回方向に沿って複数箇所に形成されており、
前記巻き始め線を前記接続端子から前記収容溝に案内するための第１案内溝が、前記収容溝に連接して、前記第１外鍔部に複数箇所に形成されており、
前記収容溝に配置された前記巻き始め線を前記ボビン外方に引き延ばすための第３案内溝が、前記収容溝に連接して前記第２外鍔部に形成されており、
前記収容溝に収容された前記巻き始め線を覆うように、前記巻芯部に第１絶縁テープが巻回されており、
前記巻き始め線は、前記第２外鍔部側の前記第１絶縁テープの周縁を支点として巻軸方向と略直角方向に折り曲げられていることを特徴とするコイル部品。 The core,
A core part into which a part of the core is inserted, a bobbin having a first outer collar part and a second outer collar part provided at both ends in the winding axis direction of the core part,
A coil having a winding start line and a winding end line wound around the outer periphery of the winding core part;
A plurality of connection terminals fixed to the first outer casing,
The housing groove for housing the winding start line is formed along the winding axis direction of the core portion on the outer periphery of the core portion, and a plurality of locations along the winding direction of the core portion. Is formed,
A first guide groove for guiding the winding start line from the connection terminal to the accommodation groove is connected to the accommodation groove and formed at a plurality of locations in the first outer flange portion,
A third guide groove for extending the winding start line disposed in the housing groove to the outside of the bobbin is formed in the second outer flange portion so as to be connected to the housing groove;
A first insulating tape is wound around the core portion so as to cover the winding start line housed in the housing groove,
The coil component, wherein the winding start line is bent in a direction substantially perpendicular to the winding axis direction with the periphery of the first insulating tape on the second outer flange side as a fulcrum. 前記巻軸方向と垂直な面における前記巻芯部の断面は四角形状であり、
前記収容溝は、前記断面の外形において隣接する二辺の外形包絡線から内側に凹に形成されたものであり、前記断面の外形の四隅の少なくとも２箇所に形成されていることを特徴とする請求項１に記載のコイル部品。 A cross section of the core portion in a plane perpendicular to the winding axis direction is a square shape,
The receiving groove is formed inwardly from two outer envelopes adjacent to each other in the outer shape of the cross section, and is formed in at least two corners of the outer shape of the cross section. The coil component according to claim 1. 前記収容溝は、前記断面の外形の四隅全てに形成されていることを特徴とする請求項２に記載のコイル部品。   The coil component according to claim 2, wherein the receiving groove is formed at all four corners of the outer shape of the cross section. 前記巻き終わり線を前記コイル外周から前記接続端子に案内するための第２案内溝が、前記第１外鍔部に複数箇所に形成されており、
前記巻き終わり線が前記第２案内溝に配置されていることを特徴とする請求項１ないし３のいずれかに記載のコイル部品。 Second guide grooves for guiding the winding end wire from the outer periphery of the coil to the connection terminal are formed at a plurality of locations in the first outer flange portion,
The coil component according to any one of claims 1 to 3, wherein the winding end line is disposed in the second guide groove. 前記コイル外周に第２絶縁テープが少なくとも巻回方向に１周巻回されていることを特徴とする請求項１ないし４のいずれかに記載のコイル部品。   The coil component according to any one of claims 1 to 4, wherein the second insulating tape is wound at least once in the winding direction on the outer periphery of the coil. コアと、
前記コアの一部が挿入された巻芯部と、前記巻芯部の巻軸方向両端に設けられた第１外鍔部と第２外鍔部を有するボビンと、
前記巻芯部の外周に巻回された、巻き始め線と巻き終わり線を有するコイルと、
前記第１外鍔部に固定された複数の接続端子と、を備え、
前記巻き始め線を収容するための収容溝が、前記巻芯部の外周に前記巻芯部の巻軸方向に沿って形成されていると共に、前記巻芯部の巻回方向に沿って複数箇所に形成されており、
前記巻き始め線を前記接続端子から前記収容溝に案内するための第１案内溝が、前記収容溝に連接して、前記第１外鍔部に複数箇所に形成されており、
前記収容溝に配置された前記巻き始め線を前記ボビン外方に引き延ばすための第３案内溝が、前記収容溝に連接して前記第２外鍔部に形成されており、
前記第３案内溝に突部が設けられており、
前記巻き始め線は、前記突部を支点として巻軸方向と略直角方向に折り曲げられていることを特徴とするコイル部品。 The core,
A core part into which a part of the core is inserted, a bobbin having a first outer collar part and a second outer collar part provided at both ends in the winding axis direction of the core part,
A coil having a winding start line and a winding end line wound around the outer periphery of the winding core part;
A plurality of connection terminals fixed to the first outer casing,
The housing groove for housing the winding start line is formed along the winding axis direction of the core portion on the outer periphery of the core portion, and a plurality of locations along the winding direction of the core portion. Is formed,
A first guide groove for guiding the winding start line from the connection terminal to the accommodation groove is connected to the accommodation groove and formed at a plurality of locations in the first outer flange portion,
A third guide groove for extending the winding start line disposed in the housing groove to the outside of the bobbin is formed in the second outer flange portion so as to be connected to the housing groove;
A protrusion is provided in the third guide groove,
The coil component, wherein the winding start line is bent in a direction substantially perpendicular to the winding axis direction with the protrusion as a fulcrum. 前記収容溝に収容された前記巻き始め線を覆うように、第１絶縁テープが前記第１外鍔部のみに接しながら前記巻芯部に巻回されていることを特徴とする請求項６に記載のコイル部品。   The first insulating tape is wound around the winding core part so as to cover only the first outer flange part so as to cover the winding start line accommodated in the accommodation groove. The coil component described.
JP2016111660A 2015-09-17 2016-06-03 Coil parts Active JP6706148B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610825900.9A CN106816265B (en) 2015-09-17 2016-09-14 Coil component

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015184173 2015-09-17
JP2015184173 2015-09-17

Publications (2)

Publication Number Publication Date
JP2017059813A true JP2017059813A (en) 2017-03-23
JP6706148B2 JP6706148B2 (en) 2020-06-03

Family

ID=58391887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016111660A Active JP6706148B2 (en) 2015-09-17 2016-06-03 Coil parts

Country Status (2)

Country Link
JP (1) JP6706148B2 (en)
CN (1) CN106816265B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108053971A (en) * 2018-01-04 2018-05-18 深圳盈通电子科技实业有限公司 A kind of filter inductor structure and its manufacturing method
CN110323042A (en) * 2018-03-29 2019-10-11 Tdk株式会社 Coil device
CN110867292A (en) * 2018-08-28 2020-03-06 马勒国际有限公司 Coil carrier for electromagnetic switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108831715A (en) * 2018-07-23 2018-11-16 苏州欧普照明有限公司 inductance framework and inductance device
JP6591031B1 (en) * 2018-12-06 2019-10-16 三菱電機株式会社 Coil device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575864Y2 (en) * 1977-03-30 1982-02-03
US4745388A (en) * 1987-02-02 1988-05-17 American Telephone And Telegraph Company, At&T Bell Laboratories Transformer with wire lead isolation slots
DE4120771A1 (en) * 1991-06-24 1993-01-07 Philips Patentverwaltung TRANSFORMER WITH A SPOOL BODY MADE OF PLASTIC
JPH08316058A (en) * 1995-05-19 1996-11-29 Diamond Electric Mfg Co Ltd Winding bobbin
JPH0992548A (en) * 1995-09-27 1997-04-04 Tec Corp Coil bobbin
JP2008004906A (en) * 2006-06-20 2008-01-10 Taiyo Yuden Co Ltd Radial-lead type inductor
WO2014021138A1 (en) * 2012-08-01 2014-02-06 株式会社村田製作所 Transformer coil
JP2014053453A (en) * 2012-09-07 2014-03-20 Tabuchi Electric Co Ltd Electromagnetic inductor
CN202887952U (en) * 2012-11-08 2013-04-17 一诺科技股份有限公司 Combination type transformer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108053971A (en) * 2018-01-04 2018-05-18 深圳盈通电子科技实业有限公司 A kind of filter inductor structure and its manufacturing method
CN110323042A (en) * 2018-03-29 2019-10-11 Tdk株式会社 Coil device
CN110867292A (en) * 2018-08-28 2020-03-06 马勒国际有限公司 Coil carrier for electromagnetic switch
CN110867292B (en) * 2018-08-28 2022-09-27 马勒国际有限公司 Coil carrier for electromagnetic switch

Also Published As

Publication number Publication date
CN106816265B (en) 2020-10-16
CN106816265A (en) 2017-06-09
JP6706148B2 (en) 2020-06-03

Similar Documents

Publication Publication Date Title
JP2017059813A (en) Coil component
TWI379327B (en) Transformer structure
US9202621B2 (en) Slotted bobbin magnetic component devices and methods
US9424979B2 (en) Magnetic element with multiple air gaps
KR101475677B1 (en) Coil component and power supply unit including the same
US20090309686A1 (en) Low profile coil-wound bobbin
JP2010050153A (en) Coil component
WO2014021138A1 (en) Transformer coil
US8791786B2 (en) Coil device
US20110115594A1 (en) Magnetic element, fabricating process thereof, and assembly of magnetic element and circuit carrier
KR101124003B1 (en) Transformer and flat panel display device using the same
US8773234B2 (en) Transformer
KR101240854B1 (en) Transformer
JP6471489B2 (en) Bobbin for coil component and method for manufacturing coil component
JP6930177B2 (en) Transformers and transformer manufacturing methods
US9004389B2 (en) Bobbin and method of using the same
KR101153515B1 (en) Transformer, Power module and Flat panel display device using the same
KR101153521B1 (en) Transformer, Power module and Flat panel display device using the same
JP2014053453A (en) Electromagnetic inductor
JP2011091136A (en) Coil
KR101610337B1 (en) Coil component and manufacturing method there of
JP2018107244A (en) Transformer and bobbin
JP5729405B2 (en) Coil parts
JP5464733B2 (en) Trance
JP2011014683A (en) Transformer

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190508

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20191213

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20191219

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200129

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20200507

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20200515

R150 Certificate of patent or registration of utility model

Ref document number: 6706148

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250