JPH0132727Y2

JPH0132727Y2 -

Info

Publication number: JPH0132727Y2
Application number: JP1983059838U
Authority: JP
Priority date: 1983-04-21
Filing date: 1983-04-21
Publication date: 1989-10-05
Also published as: JPS59166417U

Description

【考案の詳細な説明】技術分野本考案はフエライト等の磁心の端面にリード線
を固着し、磁心に巻回された巻線の端末をリード
線にからげる方式の小型インダクタンス素子に関
する。[Detailed Description of the Invention] Technical Field The present invention relates to a small inductance element in which a lead wire is fixed to the end face of a magnetic core made of ferrite or the like, and the end of the winding wound around the magnetic core is tied to the lead wire.

従来技術従来のインダクタンス素子は、第１図に示す如
く、両端面１ａ，１ｂに結合孔２，３を有するド
ラム型フエライト磁心１と、この結合孔２，３に
おいて接着剤４，５で磁心１に結合された一対の
リード線６，７と、磁心１に巻回され、その端末
８ａ，８ｂがリード線６，７に夫々からげられ半
田９，１０で固着された巻線８とから成る。尚リ
ード線６，７は磁心１に対する結合を強固に達成
するために、釘頭状の抜け止め頭部１１，１２を
夫々有する。Prior Art As shown in FIG. 1, a conventional inductance element includes a drum-shaped ferrite magnetic core 1 having coupling holes 2 and 3 on both end faces 1a and 1b, and a magnetic core 1 bonded to the coupling holes 2 and 3 with adhesives 4 and 5. It consists of a pair of lead wires 6, 7 coupled to the magnetic core 1, and a winding 8 which is wound around the magnetic core 1, and whose terminals 8a, 8b are tied to the lead wires 6, 7, respectively, and fixed with solders 9, 10. . The lead wires 6 and 7 have nail-shaped retaining heads 11 and 12, respectively, in order to achieve strong coupling to the magnetic core 1.

ところで、他の電子部品と同様に第１図に示す
形式のインダクタンス素子も小型化が要求されて
いる。この要求に応えるためにリード線６，７及
び磁心１を小さくすることが考えられる。然し、
リード線６，７の径は、加工上又は用途上小さく
できない場合が多い。また、磁心１を小さくする
と、磁心１が破損し易くなる。即ち、リード線
６，７を固着するための結合用孔２，３が占める
割合が大きくなり、磁心１の巻装部１ａとフラン
ジ状端部１ｂ，１ｃとの境界近傍が破損し易くな
る。 Incidentally, like other electronic components, the inductance element of the type shown in FIG. 1 is also required to be miniaturized. In order to meet this demand, it is conceivable to make the lead wires 6, 7 and the magnetic core 1 smaller. However,
The diameters of the lead wires 6 and 7 cannot be reduced in many cases due to processing or usage reasons. Furthermore, if the magnetic core 1 is made smaller, the magnetic core 1 becomes more likely to be damaged. That is, the proportion occupied by the coupling holes 2 and 3 for fixing the lead wires 6 and 7 becomes large, and the vicinity of the boundary between the winding portion 1a and the flange-shaped ends 1b and 1c of the magnetic core 1 becomes easily damaged.

一方、小型インダクタンス素子を高い量産性を
有して製造する為には、巻線８の端末８ａ，８ｂ
がリード線６，７の所定の場所に容易且つ確実に
からげられなければならない。 On the other hand, in order to manufacture small inductance elements with high mass productivity, it is necessary to
must be easily and reliably tied to predetermined locations on the lead wires 6 and 7.

考案の目的そこで、本考案の目的は小型化が可能で且つ製
造が容易であるインダクタンス素子を提供するこ
とにある。Purpose of the invention Therefore, the purpose of the present invention is to provide an inductance element that can be miniaturized and easily manufactured.

考案の構成上記目的を達成するための本考案は、理解を容
易にするために、実施例を示す図面の符号を参照
して説明すると、端面に結合孔２，３を有する磁
心１と、前記結合孔２，３に固着されたリード線
６，７と、前記磁心１に巻回され且つその端末８
ａ，８ｂが前記リード線６，７にからげられた巻
線８とから成るインダクタンス素子に於いて、前
記リード線６，７の一端部に前記リード線の本体
部６ａ，７ａよりも細い先細部分６ｂ，７ｂを設
け、前記先細部分６ｂ，７ｂの先端に前記リード
線６，７の本体部６ａ，７ａの太さ以下の頭部１
１，１２を設け、前記頭部１１，１２及び前記先
細部分６ｂ，７ｂを前記結合孔２，３に挿入して
接着剤４，５で前記磁心１に固着し、前記先細部
分６ｂ，７ｂ又は前記リード線６，７の一部にほ
ぼ断面四角形の端末からげ部分を設け、該端末か
らげ部分に前記端末８ａ，８ｂをからげ、前記結
合孔２，３には前記リード線の本体部６ａ，７ａ
の太さ以下の部分のみを挿入したことを特徴とす
るインダクタンス素子に係わるものである。Structure of the Invention To achieve the above object, the present invention will be explained with reference to the reference numerals in the drawings showing the embodiments for ease of understanding. Lead wires 6 and 7 fixed to the coupling holes 2 and 3 and terminals 8 wound around the magnetic core 1
In the inductance element, a and 8b are windings 8 which are wound around the lead wires 6 and 7, and one end of the lead wires 6 and 7 has a tapered shape that is thinner than the main body portions 6a and 7a of the lead wires. portions 6b, 7b are provided, and a head portion 1 having a thickness equal to or smaller than the main body portions 6a, 7a of the lead wires 6, 7 is provided at the tips of the tapered portions 6b, 7b.
1, 12 are provided, the heads 11, 12 and the tapered portions 6b, 7b are inserted into the coupling holes 2, 3 and fixed to the magnetic core 1 with adhesives 4, 5, and the tapered portions 6b, 7b or Parts of the lead wires 6 and 7 are provided with terminal barbed portions having a substantially rectangular cross section, the terminal ends 8a and 8b are tied to the terminal barbed portions, and the main body portions of the lead wires are provided in the coupling holes 2 and 3. 6a, 7a
This relates to an inductance element characterized by inserting only a portion having a thickness equal to or less than .

考案の作用効果上記考案によれば次の作用効果を得ることが出
来る。Effects of the invention According to the above invention, the following effects can be obtained.

(イ) リード線６，７の磁心１の結合孔２，３に挿
入する部分を、リード線の本体部６ａ，７ａよ
りも細い先細部分６ｂ，７ｂとし、且つリード
線先端の頭部１１，１２もリード線の本体部６
ａ，７ａの太さ以下としたので、結合孔２，３
を小さく形成することが可能になる。従つて磁
心１を小型にすることが出来る。(a) The parts of the lead wires 6, 7 to be inserted into the coupling holes 2, 3 of the magnetic core 1 are tapered parts 6b, 7b which are thinner than the main body parts 6a, 7a of the lead wires, and the heads 11, 12 is also the main body part 6 of the lead wire
Since the thickness is less than that of a and 7a, the connecting holes 2 and 3
It becomes possible to form a small size. Therefore, the magnetic core 1 can be made smaller.

(ロ) 端末８ａ，８ｂをからげる部分が断面四角形
であるので、ほぐれの少ない状態で端末８ａ，
８ｂをリード線６，７にからげることが出来
る。(b) Since the part that binds the terminals 8a and 8b has a rectangular cross section, the terminals 8a and 8b can be tied together with little loosening.
8b can be tied to the lead wires 6 and 7.

(ハ) 先細部分６ｂ，７ｂを結合孔２，３に挿入す
るので、結合孔２，３が小さくとも接着剤４，
５を収容するための比較的大きな空間を得るこ
とが出来る。(c) Since the tapered parts 6b and 7b are inserted into the bonding holes 2 and 3, even if the bonding holes 2 and 3 are small, the adhesive 4,
A relatively large space can be obtained for accommodating 5.

実施例次に第２図〜第４図を参照して本考案の実施例
に係わるインダクタンス素子について述べる。但
し、第２図〜第４図で符号１〜１２で示す部分は
第１図で同一符号で示す部分と実質的に同一であ
るので、その説明を省略する。Embodiment Next, an inductance element according to an embodiment of the present invention will be described with reference to FIGS. 2 to 4. However, since the parts indicated by reference numerals 1 to 12 in FIGS. 2 to 4 are substantially the same as the parts indicated by the same reference numerals in FIG. 1, their explanation will be omitted.

本実施例のリード線６，７は、本体部６ａ，７
ａの一端部に断面形状四角形の先細部分６ｂ，７
ｂを有する。この先細部分９ｂ，７ｂは、第４図
に示す如く断面四角形で且つ本体部６ａ，７ａよ
りも細く形成されている。先細部分６ｂ，７ｂの
先端に設けられた頭部１１，１２は円板状に形成
され、リード線本体部６ａ，７ａの径と同一又は
これ以下の径を有する。磁心１の凹部２，３に
は、リード線６，７の頭部１１，１２及び先細部
分６ｂ，７ｂの一部が挿入され、接着剤４，５で
固着されている。巻線８の端末８ａ，８ｂはリー
ド線６，７の断面四角形のからげ部分即ち結合孔
２，３からはみ出した先細部分６ｂ，７ｂにから
げられ、半田９，１０で固着されている。 The lead wires 6 and 7 of this embodiment are the main body parts 6a and 7.
A tapered part 6b, 7 having a rectangular cross section is provided at one end of a.
It has b. As shown in FIG. 4, the tapered portions 9b, 7b have a rectangular cross section and are formed thinner than the main body portions 6a, 7a. The heads 11, 12 provided at the tips of the tapered portions 6b, 7b are formed in a disk shape, and have a diameter that is the same as or smaller than the diameter of the lead wire body portions 6a, 7a. The heads 11, 12 and part of the tapered portions 6b, 7b of the lead wires 6, 7 are inserted into the recesses 2, 3 of the magnetic core 1, and are fixed with adhesives 4, 5. Terminals 8a and 8b of the winding 8 are tied to the tapered portions 6b and 7b of the lead wires 6 and 7 having a square cross section, that is, the tapered portions 6b and 7b protruding from the coupling holes 2 and 3, and are fixed with solders 9 and 10.

上述の如くインダクタンス素子を形成すれば、
上記(イ)，(ロ)，(ハ)項に示した作用効果を得ることが
出来る。更に、端末８ａ，８ｂをからげる部分が
先細に形成されているので、端末８ａ，８ｂが磁
心１側に集まるようにからげることが可能にな
る。従つて、端末８ａ，８ｂの所定場所への巻回
しが可能になり且つリード線６，７を折り曲げて
も巻線８の切断が生じにくいインダクタンス素子
を提供することが出来る。 If the inductance element is formed as described above,
The effects shown in items (a), (b), and (c) above can be obtained. Furthermore, since the portions that bind the terminals 8a and 8b are tapered, it is possible to bind the terminals 8a and 8b so that they are gathered on the magnetic core 1 side. Therefore, it is possible to provide an inductance element in which the terminals 8a, 8b can be wound at predetermined locations, and the winding 8 is less likely to be cut even if the lead wires 6, 7 are bent.

以上、本考案の実施例について述べたが、本考
案はこの実施例に限定されるものではなく、更に
変形可能なものである。例えば頭部１１，１２を
釘頭状以外の、リード線を引つ張つた時に接着剤
４，５に抑えられて抜け止めされるように拡がつ
た種々の形状にすることが出来る。また、結合孔
２，３に挿入されないリード線６，７の部分に、
第５図に示すように先細にならない断面四角形の
端末からげ部分１３を設けてもよい。 Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment and can be further modified. For example, the heads 11 and 12 can be made into various shapes other than the shape of a nail head, which expand so that when the lead wires are pulled, they are suppressed by the adhesives 4 and 5 and prevented from coming off. Also, in the parts of the lead wires 6 and 7 that are not inserted into the coupling holes 2 and 3,
As shown in FIG. 5, a terminal barb 13 having a rectangular cross section that does not taper may be provided.

[Brief explanation of the drawing]

第１図は従来のインダクタンス素子の一部切欠
正面図、第２図は本考案の実施例に係わるインダ
クタンス素子の一部切欠正面図、第３図は第２図
のリード線を示す一部切欠正面図、第４図は第３
図のリード線の−線断面図である。第５図は
変形例のインダクタンス素子の一部切欠正面図で
ある。１……磁心、２，３……結合孔、４，５……接
着剤、６，７……リード線、６ａ，７ａ……本体
部、６ｂ，７ｂ……先細部分、８……巻線、８
ａ，８ｂ……端末、９，１０……半田、１１，１
２……頭部。 Fig. 1 is a partially cutaway front view of a conventional inductance element, Fig. 2 is a partially cutaway front view of an inductance element according to an embodiment of the present invention, and Fig. 3 is a partially cutaway front view showing the lead wire of Fig. 2. Front view, Figure 4 is the 3rd
FIG. 3 is a cross-sectional view of the lead wire shown in FIG. FIG. 5 is a partially cutaway front view of a modified inductance element. 1...Magnetic core, 2,3...Coupling hole, 4,5...Adhesive, 6,7...Lead wire, 6a, 7a...Body part, 6b, 7b...Tapered part, 8...Winding wire , 8
a, 8b... terminal, 9, 10... solder, 11, 1
2...Head.

Claims

[Claims for Utility Model Registration] A magnetic core 1 having coupling holes 2 and 3 on the end face, lead wires 6 and 7 fixed to the coupling holes 2 and 3, and a terminal 8a of the magnetic core 1 wound around the magnetic core 1. 8b is an inductance element consisting of a winding 8 wound around the lead wires 6, 7, and one end of the lead wires 6, 7 has a tapered portion 6b that is thinner than the main body portions 6a, 7a of the lead wire. ,7b
are provided, and heads 11, 12 having a thickness equal to or smaller than the main body portions 6a, 7a of the lead wires 6, 7 are provided at the tips of the tapered portions 6b, 7b;
2 and the tapered portions 6b, 7b are the coupling holes 2,
3 and is fixed to the magnetic core 1 with adhesives 4 and 5, and a part of the tapered portions 6b and 7b or the lead wires 6 and 7 is provided with a terminal barbage portion having a substantially rectangular cross section. The terminal 8a,
8b, and only the portions of the lead wires having a thickness equal to or smaller than the main body portions 6a, 7a are inserted into the coupling holes 2, 3.