JPH0536260Y2 - - Google Patents
Info
- Publication number
- JPH0536260Y2 JPH0536260Y2 JP1987024672U JP2467287U JPH0536260Y2 JP H0536260 Y2 JPH0536260 Y2 JP H0536260Y2 JP 1987024672 U JP1987024672 U JP 1987024672U JP 2467287 U JP2467287 U JP 2467287U JP H0536260 Y2 JPH0536260 Y2 JP H0536260Y2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- coil bobbin
- insulating
- terminal
- core
- 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 43
- 239000004519 grease Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000010292 electrical insulation Methods 0.000 description 13
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 239000000758 substrate Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
Description
【考案の詳細な説明】
本考案は、基板に取り付けるコイルボビンの構
成部品間、コイルボビンに巻線を施したトランス
本体の巻線と磁性コアとの間の電気絶縁、ピン端
子相互間、及び周辺部品の間の電気絶縁特性を向
上させた事を特徴とするスイツチング電源用トラ
ンス、又はコモンモードチヨークコイル等（以下
コイルと称す）の、電気絶縁特性を向上した多巻
線インダクタの構成に関するものである。
従来、この種の多巻線インダクタの一つである
トランスは、第１図に示すコイルボビン２０の端
子板１５より、ピン端子５を端子板の下面に垂直
に巻芯１の軸芯方向に植設し、巻芯１に巻回した
巻線（図示せず）の引出し線をピン端子５に直接
巻き付ける為、引出し線と基板間の間隔が短くな
り、十分な電気絶縁が得られないという欠点があ
つた。更に隣接部品との電気絶縁にも問題が発生
することがしばしばあつた。
又、磁性コアと巻線相互間の電気絶縁は、巻線
の外周及び巻線間に電気絶縁テープを巻き付けて
行つていたが、電気絶縁が充分でない時には、巻
線間や、磁性コアを間にして巻線間で電気絶縁破
壊が生ずると云う問題が発生していた。
本考案は、従来のトランス、コイル等の多巻線
インダクタに生じていたこれらの欠点を除去する
為、第２図に示す様に巻線が巻回される巻芯１
と、その両端より張り出す鍔２と、基板へ取り付
ける端子板３の巻線が施される面上に横溝６と側
面のピン端子間に縦溝１８を設け、横溝６及び縦
軸１８に、電気絶縁材よりなる底面に設けた絶縁
板８と下面に設けた小型絶縁板９を取り付けた２
つの絶縁カバーにより巻線を施したコイルボビン
を包み込み、コイルボビンの両側より絶縁カバー
を組み合わせ、巻線と、磁性コアと、巻線の引き
出し線を接続したピン端子間を絶縁するものであ
る。
絶縁カバー１２の側壁７に設けた接合凸部１１
は、他方の絶縁カバーの対向位置に設けた接合凹
部１７と嵌合し、２つの絶縁カバー１２を組み合
わせる。絶縁カバー１２夫々の底面の両側には２
枚の大型の絶縁板８と、下面には端子板３に植設
したピン端子５の相互間を絶縁するためピン端子
５の間の縦溝１８には小型絶縁板９を、ピン端子
に挿入する切込み１０を設ける事により、２つの
絶縁カバーを組み合せることにより、ピン端子
間、及び巻線間の電気絶縁特性に優れたスイツチ
ング電源用トランス、或はコモンモードチヨーク
コイル等の多巻線インダクタを得る事を目的とす
る。
以下、本考案の一実施例について、図面を参照
しながら詳細に説明する。
第２図は、本考案の一実施例を示す磁性コア１
４、コイルボビン２０、絶縁カバー１２の組合せ
を示す分解斜視図であり、磁性コア１４をコイル
ボビン２０の本体に組込み、コアホルダー（図示
せず）により分割された磁性コア１４を組みつけ
固定した後、絶縁カバー１２によつてコイルボビ
ンに巻線（図示せず）を施したトランス、又はコ
イルを包む形状を示すものである。コイルボビン
２０に磁性コア１４を組み込み、予めコイルボビ
ン２０の端子板３の巻線を施す面上に設けた横溝
６に、絶縁カバー１２の底面の両側に設けた絶縁
板８を、コイルボビン２０の巻芯１に巻回した巻
線（図示せず）と、磁性コア１４との間に挿入
し、又端子板３の縦溝１８に絶縁カバー１２の下
面に設けてある小型絶縁板９を、ピン端子５には
切込み１０が組合うように相対し組み合わせ接合
し、絶縁カバー１２の接合凸部１１と接合凹部１
７をかん合し固定する。
第３図は、第２図Ａ−Ａ線で上下方向に切断し
た断面図を示し、絶縁カバー１２を組合せた本考
案による多巻線インダクタを直接基板に挿入した
状態を示す断面図である。１はコイルボビン２０
の巻芯、１４は磁性コア、１６は基板、３は端子
板、８は絶縁カバー１２の絶縁板を示し、１３は
巻芯１に巻回された巻線を示している。
端子板３には巻線の引き出し線を接続するピン
端子を植設し、磁性コア１４と基板１６との電気
絶縁をはかる為、端子板３の上面に横溝６と側面
のピン端子間に縦溝１８が設けてある。
以上に述べた如く、本考案によるトランス、コ
イル等の多巻線インダクタは、コイルボビン２０
の巻芯１に巻回した巻線１３の引出し線をピン端
子５に巻き付け半田付けした後、巻線を施したコ
イルボビンの外周に絶縁カバー１２を組み合せる
事により、磁性コアと巻線間、ピン端子の相互
間、トランスコイル等の多巻線インダクタと周辺
の部品間の電気絶縁を更に確実に行うもので、従
来構造のトランス、コイルの多巻線インダクタに
比べ電気絶縁特性は格段に向上し、更に絶縁カバ
ーの絶縁板８とコイルボビンの端子板３の両側上
面に設けた横溝６、絶縁カバー１２の組合せ時の
接合凸部と接合凹部、又はピン端子間に設けた縦
溝と小型絶縁板との隙間部に電気絶縁用シリコン
グリースを塗布するか、電気絶縁用樹脂を塗布
し、巻線、引き出し線、ピン端子間の空気層を完
全に遮断することにより、電気絶縁の完全なトラ
ンス、コモンモードチヨークコイル等の多巻線イ
ンダクタとすることが出来る。 [Detailed description of the invention] This invention provides electrical insulation between the components of the coil bobbin attached to the board, between the windings of the transformer body and the magnetic core, between the pin terminals, and surrounding parts. This relates to the structure of a multi-winding inductor with improved electrical insulation properties, such as a switching power supply transformer characterized by improved electrical insulation properties between be. Conventionally, a transformer, which is one of this type of multi-winding inductor, has a terminal plate 15 of a coil bobbin 20 shown in FIG. Since the lead wire of the winding (not shown) wound around the winding core 1 is directly wound around the pin terminal 5, the distance between the lead wire and the board becomes short and sufficient electrical insulation cannot be obtained. It was hot. Additionally, problems often occurred with electrical insulation from adjacent components. In addition, electrical insulation between the magnetic core and the windings was achieved by wrapping electrical insulating tape around the outer circumference of the windings and between the windings, but if the electrical insulation was not sufficient, the electrical insulation between the windings or between the magnetic cores was performed. During this time, a problem occurred in which electrical insulation breakdown occurred between the windings. In order to eliminate these drawbacks that have occurred in conventional multi-winding inductors such as transformers and coils, the present invention has developed a winding core 1 on which windings are wound as shown in Figure 2.
A collar 2 protrudes from both ends thereof, and a vertical groove 18 is provided between the horizontal groove 6 and the pin terminal on the side surface on the surface where the winding of the terminal plate 3 to be attached to the board is performed, and the horizontal groove 6 and the vertical axis 18 are provided with a vertical groove 18. 2, which has an insulating plate 8 on the bottom made of electrically insulating material and a small insulating plate 9 on the bottom.
The coil bobbin with the winding wire is wrapped in two insulating covers, and the insulating covers are assembled from both sides of the coil bobbin to insulate the winding wire, the magnetic core, and the pin terminals connected to the lead wires of the winding wire. Joint convex portion 11 provided on side wall 7 of insulating cover 12
is fitted into the joining recess 17 provided at the opposing position of the other insulating cover, thereby combining the two insulating covers 12. 2 on both sides of the bottom of each insulating cover 12.
A small insulating plate 9 is inserted into the vertical groove 18 between the pin terminals 5 in order to insulate between the two large insulating plates 8 and the pin terminals 5 embedded in the terminal board 3 on the bottom surface. By combining the two insulating covers, it is possible to create switching power transformers with excellent electrical insulation properties between pin terminals and between windings, or multi-winding wires such as common mode choke coils. The purpose is to obtain an inductor. Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. FIG. 2 shows a magnetic core 1 showing an embodiment of the present invention.
4. It is an exploded perspective view showing the combination of the coil bobbin 20 and the insulating cover 12. After the magnetic core 14 is assembled into the main body of the coil bobbin 20 , and the divided magnetic core 14 is assembled and fixed by a core holder (not shown), This figure shows a transformer in which a coil bobbin is wound (not shown) or a coil is wrapped with an insulating cover 12. The magnetic core 14 is assembled into the coil bobbin 20 , and the insulating plates 8 provided on both sides of the bottom surface of the insulating cover 12 are inserted into the horizontal grooves 6 provided in advance on the surface of the terminal plate 3 of the coil bobbin 20 on which the winding is to be performed. A small insulating plate 9 is inserted between the winding (not shown) wound around the pin terminal 1 and the magnetic core 14, and is also provided on the lower surface of the insulating cover 12 in the vertical groove 18 of the terminal plate 3. 5 and 5 are combined and joined so that the notches 10 are aligned, and the joining protrusion 11 and the joining recess 1 of the insulating cover 12 are connected.
7 and secure it. FIG. 3 is a cross-sectional view taken along the line A--A in FIG. 2 in the vertical direction, and is a cross-sectional view showing the state in which the multi-winding inductor according to the present invention combined with the insulating cover 12 is directly inserted into a substrate. 1 is coil bobbin 20
14 is a magnetic core, 16 is a substrate, 3 is a terminal plate, 8 is an insulating plate of the insulating cover 12, and 13 is a wire wound around the winding core 1. A pin terminal for connecting the lead wire of the winding is planted on the terminal board 3, and in order to electrically insulate the magnetic core 14 and the board 16, a vertical groove is installed on the top surface of the terminal board 3 between the horizontal groove 6 and the pin terminal on the side surface. A groove 18 is provided. As described above, the multi-winding inductor such as a transformer or coil according to the present invention has a coil bobbin 20
After winding the lead wire of the winding 13 wound around the winding core 1 around the pin terminal 5 and soldering it, the insulating cover 12 is assembled around the outer periphery of the coil bobbin on which the winding is applied. This ensures more reliable electrical insulation between pin terminals and between multi-wound inductors such as transformer coils and surrounding parts, and the electrical insulation properties are significantly improved compared to multi-wound inductors with conventional structures such as transformers and coils. In addition, the horizontal grooves 6 provided on the upper surfaces of both sides of the insulating plate 8 of the insulating cover and the terminal plate 3 of the coil bobbin, the joint protrusions and joint recesses when the insulating cover 12 is combined, or the vertical grooves and small insulators provided between the pin terminals. A transformer with complete electrical insulation can be created by applying electrically insulating silicone grease or electrically insulating resin to the gap between the plate and completely blocking the air space between the windings, lead wires, and pin terminals. , a multi-winding inductor such as a common mode York coil.
第１図は、従来の多巻線インダクタのコイルボ
ビンの構造を示す図。第２図は、本考案の一実施
例を示す磁性コア及び絶縁カバーを組合せる時の
多巻線インダクタを示す分解斜視図。第３図は、
第２図のＡ−Ａ線に沿う上下切断面に於ける断面
図。
１……巻芯、２……鍔、３……端子板、４……
巻枠、５……ピン端子、６……横溝、７……側
壁、８……絶縁板、９……小型絶縁板、１０……
切込み、１１……接合凸部、１２……絶縁カバ
ー、１３……巻線、１４……磁性コア、１５……
端子板、１６……回路基板、１７……接合凹部、
１８……縦溝、２０……コイルボビン。
FIG. 1 is a diagram showing the structure of a coil bobbin of a conventional multi-winding inductor. FIG. 2 is an exploded perspective view showing a multi-winding inductor when a magnetic core and an insulating cover are combined, showing one embodiment of the present invention. Figure 3 shows
FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2; 1... Winding core, 2... Tsuba, 3... Terminal board, 4...
Winding frame, 5...Pin terminal, 6...Horizontal groove, 7...Side wall, 8...Insulating plate, 9...Small insulating plate, 10...
Notch, 11... Joint convex portion, 12... Insulating cover, 13... Winding wire, 14... Magnetic core, 15...
Terminal board, 16... circuit board, 17... joint recess,
18...Vertical groove, 20 ...Coil bobbin.
Claims (1)
ン端子を植設した端子板とからなるコイルボビ
ンの前記ピン端子を植設した端子板の側面のピ
ン端子の間に設けた縦溝と、端子板の面上に巻
線と磁性コアとの間を隔絶する絶縁板を通す巻
芯の両側に設けた横溝とを有するコイルボビン
と、一方が開口し開口側の両側に互いに嵌合す
る接合凸部と接合凹部と、巻線と磁性コアとを
隔絶する底面から開口方向に取りつけた前記コ
イルボビンの横溝に挿入される絶縁板と、開口
の下面に前記コイルボビンの縦溝に挿入される
小型絶縁板と、前記コイルボビンのピン端子を
挿入する切込みとを設けた対向する絶縁カバー
とからなり、前記絶縁カバーを巻芯に巻線を施
した前記コイルボビンを間に両側から組み込み
嵌合してなることを特徴とする多巻線インダク
タ。 ２ 請求項１記載の実用新案登録請求の範囲にお
いて、ピン端子と切込みとの間の空隙、端子板
の縦溝と小型絶縁板との間の空隙、絶縁板と巻
線と磁性コアとの間の空隙、及び巻線を施した
コイルボビンを包む絶縁カバーの内部に、電気
絶縁用グリース、又は樹脂を充填してなること
を特徴とする多巻線インダクタ。[Claims for Utility Model Registration] 1. A coil bobbin consisting of a core around which a winding is wound and a terminal plate with pin terminals implanted in one of both ends of the core, on the side surface of the terminal plate with the pin terminal implanted therein A coil bobbin has vertical grooves provided between pin terminals, horizontal grooves provided on both sides of the winding core through which an insulating plate is passed between the winding wire and the magnetic core on the surface of the terminal plate, and one side is open. A joint protrusion and a joint recess that fit into each other on both sides of the opening, an insulating plate inserted into the horizontal groove of the coil bobbin attached from the bottom surface toward the opening to isolate the winding and the magnetic core, and the It consists of a small insulating plate inserted into the longitudinal groove of the coil bobbin, and an opposing insulating cover provided with a notch into which the pin terminal of the coil bobbin is inserted. A multi-winding inductor characterized by being assembled and mated from both sides. 2. In the scope of the utility model registration claim described in claim 1, the gap between the pin terminal and the notch, the gap between the longitudinal groove of the terminal board and the small insulating plate, and the gap between the insulating plate, the winding, and the magnetic core. 1. A multi-winding inductor characterized in that an electrical insulating grease or resin is filled in the gap between the two and the inside of an insulating cover that encloses a coil bobbin with a wound wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987024672U JPH0536260Y2 (en) | 1987-02-20 | 1987-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987024672U JPH0536260Y2 (en) | 1987-02-20 | 1987-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63132413U JPS63132413U (en) | 1988-08-30 |
| JPH0536260Y2 true JPH0536260Y2 (en) | 1993-09-14 |
Family
ID=30824116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987024672U Expired - Lifetime JPH0536260Y2 (en) | 1987-02-20 | 1987-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0536260Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0747850Y2 (en) * | 1991-01-30 | 1995-11-01 | 太陽誘電株式会社 | Transformer cover |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347525B2 (en) * | 1972-12-05 | 1978-12-21 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347525U (en) * | 1976-09-28 | 1978-04-22 |
-
1987
- 1987-02-20 JP JP1987024672U patent/JPH0536260Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347525B2 (en) * | 1972-12-05 | 1978-12-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63132413U (en) | 1988-08-30 |
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