JPH11111534A - Bobbin for transformer and the transformer - Google Patents
Bobbin for transformer and the transformerInfo
- Publication number
- JPH11111534A JPH11111534A JP9284491A JP28449197A JPH11111534A JP H11111534 A JPH11111534 A JP H11111534A JP 9284491 A JP9284491 A JP 9284491A JP 28449197 A JP28449197 A JP 28449197A JP H11111534 A JPH11111534 A JP H11111534A
- Authority
- JP
- Japan
- Prior art keywords
- transformer
- coil
- flange
- contact
- bobbin
- 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.)
- Withdrawn
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、データ通信用変成
器に関し、特に、ネットワーク制御装置に用いて好適な
表面実装（ＳＭＤ）用の変成器に関する。The present invention relates to a transformer for data communication, and more particularly to a transformer for surface mount (SMD) suitable for use in a network control device.
【０００２】[0002]
【従来の技術】データ通信の分野では、現在、アナログ
通信のＦＡＸや変復調器（モデム）が、重要な役割を果
たしている。アナログ通信のＦＡＸやモデムから出た搬
送波は、ネットワーク制御装置に設けられた変成器でイ
ンピーダンス整合されてから電話回線に乗せられる。2. Description of the Related Art In the field of data communication, FAX and modem (modem) for analog communication play an important role at present. A carrier wave output from a facsimile or a modem for analog communication is impedance-matched by a transformer provided in a network control device, and then is put on a telephone line.
【０００３】図３に、従来の変成器を示す。図３（ａ）
は変成器の外観を示し、図３（ｂ）は変成器の断面を示
し、図３（ｃ）は変成器に用いたボビンの外観を示す。FIG. 3 shows a conventional transformer. FIG. 3 (a)
3 shows the appearance of the transformer, FIG. 3B shows a cross section of the transformer, and FIG. 3C shows the appearance of the bobbin used in the transformer.
【０００４】図３に示すように、従来の変成器に用いる
ボビン６は、筒状の巻芯６３の両端に鍔６１、６２を有
している［図３（ｃ）］。そして、従来の変成器は、巻
芯６３と鍔６１、６２によって形成される領域に巻線を
施して内側コイル６４とし、内側コイル６４の外周に絶
縁層５を設け、絶縁層５と鍔６１、６２によって形成さ
れる領域に巻線を施して外側コイル６５とし、内側コイ
ル６４と外側コイル６５のいずれか一方を一次コイル、
他方を二次コイルとしている［図３（ｂ）］。また、両
コイルの端末は、端子６６に接続されている。As shown in FIG. 3, a bobbin 6 used in a conventional transformer has flanges 61 and 62 at both ends of a cylindrical core 63 [FIG. 3 (c)]. In the conventional transformer, a winding is applied to a region formed by the core 63 and the flanges 61 and 62 to form an inner coil 64, the insulating layer 5 is provided on the outer periphery of the inner coil 64, , 62 are wound to form an outer coil 65, and one of the inner coil 64 and the outer coil 65 is a primary coil,
The other is a secondary coil [FIG. 3 (b)]. The terminals of both coils are connected to a terminal 66.
【０００５】そして、図３（ａ）に示すように、磁性材
料よりなるＥ型コア１０を、筒状の巻芯の内側に、交互
に差し込んで組立て、磁気回路を構成し、変成器として
いる。[0005] Then, as shown in FIG. 3 (a), an E-shaped core 10 made of a magnetic material is alternately inserted inside a cylindrical winding core and assembled to form a magnetic circuit, which is a transformer. .
【０００６】[0006]
【発明が解決しようとする課題】モデムやＦＡＸのネッ
トワーク制御装置に使用されている変成器は、電話回線
と直接接続されるため、リンガ等の比較的大きな電圧
（例：７５Ｖ）がかかったり、サージによる突入電圧が
加わる可能性がある。このため、変成器には、１５００
Ｖ以上の絶縁耐圧が要求される場合が多い。さらに、Ｕ
Ｌ等の製品安全規格では、絶縁耐圧以外にも絶縁距離と
して沿面距離および空間距離が規定されている。例え
ば、米国の電話機（TELEPHONE EQUIPMENT）の製品安全
規格ＵＬ１４５９は、汚染度（使用環境条件による区
分）２の事務機器が、比較トラッキング指数（ＣＴＩ）
６００Ｖ以上に区分される絶縁材料を用いていても、絶
縁距離として０.８ｍｍ以上の沿面距離と、０.７ｍｍ以
上の空間距離を要求している。Since a transformer used in a modem or a facsimile network controller is directly connected to a telephone line, a relatively large voltage (for example, 75 V) such as a ringer is applied to the transformer. Inrush voltage due to surge may be applied. For this reason, the transformer includes 1500
In many cases, a withstand voltage of V or more is required. Furthermore, U
In product safety standards such as L, a creepage distance and a space distance are defined as insulation distances in addition to withstand voltage. For example, UL1459, a product safety standard for telephones in the United States (TELEPHONE EQUIPMENT), states that office equipment with a pollution degree of 2 (category according to environmental conditions of use) has a comparative tracking index (CTI).
Even if an insulating material classified into 600 V or more is used, a creepage distance of 0.8 mm or more and a space distance of 0.7 mm or more are required as the insulation distance.
【０００７】一方、通信用機器の小型化の要求は留まる
ところを知らぬ状況にある。[0007] On the other hand, the demand for miniaturization of communication equipment remains unknown.
【０００８】そこで、本発明の課題は、絶縁距離と絶縁
耐圧を確保し得る小型のＳＭＤ用変成器、および変成器
に用いるボビンを提供することである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a small-sized SMD transformer capable of ensuring an insulation distance and a withstand voltage, and a bobbin used for the transformer.
【０００９】[0009]
【課題を解決するための手段】本発明は、筒状の巻芯の
両端に鍔を有し、前記鍔と前記巻芯が形成する巻線領域
に、前記鍔の一方の鍔に接すると共に前記巻芯の外周に
沿った段差部を有することを特徴とする変成器用ボビン
である。According to the present invention, there is provided a cylindrical core having flanges at both ends thereof, and a winding region formed by the flange and the core is in contact with one of the flanges. A transformer bobbin having a stepped portion along the outer periphery of a winding core.
【００１０】また、本発明は、上記変成器用ボビンを用
い、変成器の一次コイルの側面が二次コイルの側面と同
一面を形成しないように変成器の一次コイルと二次コイ
ルを構成することを特徴とする変成器である。Further, the present invention uses the transformer bobbin to constitute the primary coil and the secondary coil of the transformer so that the side of the primary coil of the transformer does not form the same plane as the side of the secondary coil. A transformer characterized by the following.
【００１１】さらに、本発明は、上記の変成器用ボビン
を用い、前記段差部と段差部に接していない方の鍔とに
挟まれる領域で、一次コイルと二次コイルのいずれか一
方のコイルを前記巻芯に巻回してなる内側コイルと、前
記内側コイルの外周に絶縁層を設け、前記段差部に接し
ていない方の鍔に接するとともに前記絶縁層に沿ってス
ペーサを設け、前記段差部に接している鍔と前記スペー
サとに挟まれる領域で前記絶縁層の外周に、一次コイル
と二次コイルのいずれかで未巻線のコイルを巻回して形
成した外側コイルとからなることを特徴とする変成器で
ある。Further, the present invention uses the above-described transformer bobbin, and uses one of the primary coil and the secondary coil in a region sandwiched between the step portion and the flange not in contact with the step portion. An inner coil wound around the core and an insulating layer provided on the outer periphery of the inner coil, a spacer is provided along the insulating layer while being in contact with a flange not in contact with the step portion, and a spacer is provided on the step portion. An outer coil formed by winding an unwound coil with one of a primary coil and a secondary coil on the outer periphery of the insulating layer in a region sandwiched between the contacting flange and the spacer. Transformer.
【００１２】さらに、本発明は、前記内側コイルの端末
部を前記内側コイルの段差部に接していない鍔側から引
き出してなることを特徴とする変成器である。Further, the present invention is the transformer, wherein a terminal portion of the inner coil is drawn out from a flange side not in contact with a step portion of the inner coil.
【００１３】また、本発明は、前記外側コイルの端末部
を前記外側コイルの段差部に接している鍔側から引き出
してなることを特徴とする変成器である。Further, the present invention is the transformer, wherein a terminal portion of the outer coil is drawn out from a flange side which is in contact with a step portion of the outer coil.
【００１４】[0014]
【発明の実施の形態】本発明の実施の形態を図を参照し
て説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings.
【００１５】図１は、本発明の変成器用ボビンと変成器
を示し、図１（ａ）は変成器用ボビンの外観を示し、図
１（ｂ）は変成器の断面を示す。図２は、本発明の変成
器の部分拡大断面を示す説明図である。FIG. 1 shows a transformer bobbin and a transformer according to the present invention. FIG. 1 (a) shows an appearance of the transformer bobbin, and FIG. 1 (b) shows a cross section of the transformer. FIG. 2 is an explanatory view showing a partially enlarged cross section of the transformer according to the present invention.
【００１６】図１（ａ）に示すように、本発明の変成器
用ボビン１は、筒状の巻芯１４の両端に鍔１１、１２を
有し、鍔１１、１２と巻芯１４が形成する巻線領域に、
鍔１１に接すると共に、巻芯１４の外周に沿った段差部
１３が設けられてある。As shown in FIG. 1A, the transformer bobbin 1 of the present invention has flanges 11 and 12 at both ends of a cylindrical winding core 14, and the flanges 11 and 12 and the winding core 14 are formed. In the winding area,
A step 13 is provided in contact with the flange 11 and along the outer periphery of the winding core 14.
【００１７】そして、本発明の変成器では、図１（ｂ）
に示すように、変成器用ボビンが用いられ、段差部１３
と段差部１３に接していない方の鍔１２とに挟まれる領
域で、一次コイルと二次コイルのいずれか一方のコイル
が巻芯１４に巻回されて内側コイル３となり、内側コイ
ル３の外周に絶縁層５が設けられ、段差部１３に接して
いない方の鍔１２に接すると共に、絶縁層５に沿ってス
ペーサ５１が設けられ、段差部１３に接している鍔１１
とスペーサ５１とに挟まれる領域で絶縁層５の外周に、
一次コイルと二次コイルのいずれかで未巻線のコイルが
巻回されて外側コイル２となり、内側コイル３と外側コ
イル２をもって一次コイルと二次コイルが構成される。In the transformer according to the present invention, FIG.
As shown in the figure, a transformer bobbin is used,
In a region sandwiched between the first coil and the flange 12 which is not in contact with the step portion 13, one of the primary coil and the secondary coil is wound around the core 14 to form the inner coil 3, and the outer periphery of the inner coil 3 Is provided with an insulating layer 5, which is in contact with the flange 12 which is not in contact with the stepped portion 13, and a spacer 51 is provided along the insulating layer 5 so that the flange 11 is in contact with the stepped portion 13.
Around the outer periphery of the insulating layer 5 in a region sandwiched by the
An unwound coil is wound by either the primary coil or the secondary coil to become the outer coil 2, and the inner coil 3 and the outer coil 2 constitute a primary coil and a secondary coil.
【００１８】上記のように構成される本発明の変成器で
は、図２に示すように、内側コイル３（変成器の一次コ
イル）の側面３１と外側コイル２（二次コイル）の側面
２１、および、内側コイル３の側面３２と外側コイル２
の側面２２がずれる（同一面を形成しない）ように、変
成器の一次コイルと二次コイルが構成される。In the transformer of the present invention configured as described above, as shown in FIG. 2, the side surface 31 of the inner coil 3 (primary coil of the transformer) and the side surface 21 of the outer coil 2 (secondary coil), And the side surface 32 of the inner coil 3 and the outer coil 2
The primary coil and the secondary coil of the transformer are configured such that the side surfaces 22 of the transformer are shifted (not forming the same surface).
【００１９】また、本発明の変成器の内側コイル３の端
末部３３は、段差部に接していない鍔１２側から引き出
され、鍔１２に設けられた溝１６を通して端子４２に接
続されてある。The terminal portion 33 of the inner coil 3 of the transformer according to the present invention is drawn from the side of the flange 12 not in contact with the step, and is connected to the terminal 42 through the groove 16 provided in the flange 12.
【００２０】また、外側コイル２の端末部２３は、段差
部に接している鍔１１側から引き出され、鍔１１に設け
られた溝１５を通して端子４１に接続されてある。The terminal 23 of the outer coil 2 is pulled out from the side of the flange 11 in contact with the step, and is connected to the terminal 41 through the groove 15 provided in the flange 11.
【００２１】そして、図１（ｂ）に示すように、磁性材
料よりなるＥ型コア１０を、筒状の巻芯の内側に、交互
に差し込んで組立て磁気回路を構成し、本発明の変成器
を得た。Then, as shown in FIG. 1 (b), an E-shaped core 10 made of a magnetic material is alternately inserted inside a cylindrical winding core to form a magnetic circuit. I got
【００２２】本実施の形態の変成器は、挿入損失３.２
ｄＢ、高調波歪−８３ｄＢで、絶縁耐圧１５００Ｖ、絶
縁距離である沿面距離０.８ｍｍが確保されていて、そ
の大きさは、従来の変成器に比べて、高さで数％の小型
化ができた。The transformer according to the present embodiment has an insertion loss of 3.2.
With a dB and harmonic distortion of -83 dB, a withstand voltage of 1500 V and a creepage distance of 0.8 mm, which is an insulation distance, are secured, and the size is several percent smaller than a conventional transformer. did it.
【００２３】また、本発明の変成器用ボビンの段差部
は、ボビン成形時に一体成形しても、段差部なしに成形
して後に、接着等で付加しても、その効果に変わりはな
い。The effect of the stepped portion of the transformer bobbin of the present invention is not changed even if the stepped portion is integrally formed at the time of bobbin molding, or is formed without a stepped portion and then added by bonding or the like.
【００２４】また、本発明の変成器用ボビンに用いるス
ペーサは、絶縁テープを巻いて構成しても、絶縁性を有
するブロックを組み付け、あるいは貼付けても、絶縁材
料をもって構成すれば、その効果に変わりはない。Further, the spacer used for the transformer bobbin of the present invention is not limited to the effect of being formed by using an insulating material regardless of whether it is formed by winding an insulating tape, assembling or attaching an insulating block. There is no.
【００２５】[0025]
【発明の効果】本発明によれば、絶縁距離と絶縁耐圧を
確保し得る小型のＳＭＤ用変成器、および変成器に用い
るボビンが得られる。According to the present invention, it is possible to obtain a small-sized SMD transformer capable of ensuring an insulation distance and a dielectric strength, and a bobbin used for the transformer.
【図１】本発明の変成器用ボビンと変成器を示す説明
図、図１（ａ）は変成器用ボビンの外観斜視図、図１
（ｂ）は変成器の断面図。FIG. 1 is an explanatory view showing a transformer bobbin and a transformer according to the present invention; FIG. 1A is an external perspective view of the transformer bobbin;
(B) is sectional drawing of a transformer.
【図２】本発明の変成器の部分拡大断面を示す説明図。FIG. 2 is an explanatory view showing a partially enlarged cross section of the transformer of the present invention.
【図３】従来の変成器を示す説明図、図３（ａ）は変成
器の外観を示す説明図、図３（ｂ）は変成器の断面図、
図３（ｃ）は変成器に用いたボビンの外観を示す説明
図。3A and 3B are explanatory views showing a conventional transformer, FIG. 3A is an explanatory view showing an appearance of the transformer, FIG. 3B is a sectional view of the transformer,
FIG. 3C is an explanatory diagram illustrating an appearance of a bobbin used in the transformer.
１ （本発明の変成器用）ボビン １１、１２ 鍔 １３ 段差部 １４ （筒状の）巻芯 １５ （鍔に設けられた）溝 １６ （鍔に設けられた）溝 ２ 外側コイル ２１，２２ （外側コイルの）側面 ２３ （外側コイルの）端末部 ３ 内側コイル ３１，３２ （内側コイルの）側面 ３３ （内側コイルの）端末部 ４１、４２ 端子 ５ 絶縁層 ５１ スペーサ ６ （従来の変成器に用いる）ボビン ６１、６２ （ボビンの）鍔 ６３ （ボビンの）巻芯 ６４ （従来の変成器の）内側コイル ６５ （従来の変成器の）外側コイル ６６ （従来の変成器の）端子 １０ Ｅ型コア Reference Signs List 1 bobbin (for transformer of the present invention) 11, 12 flange 13 stepped portion 14 (cylindrical) winding core 15 groove (provided on flange) 16 groove (provided on flange) 2 outside coil 21, 22 (outside) Side surface (of coil) 23 Terminal portion (of outer coil) 3 Inner coil 31, 32 Side surface (of inner coil) 33 Terminal portion (of inner coil) 41, 42 Terminal 5 Insulating layer 51 Spacer 6 (used in conventional transformer) Bobbin 61, 62 (bobbin) collar 63 (bobbin) core 64 inner coil (of conventional transformer) 65 outer coil (of conventional transformer) terminal 10 (of conventional transformer) 10E core
Claims (5)
前記巻芯が形成する巻線領域に、前記鍔の一方の鍔に接
すると共に前記巻芯の外周に沿った段差部を有すること
を特徴とする変成器用ボビン。A step having a flange at both ends of a cylindrical core and a step formed along the outer periphery of the core in contact with one of the flanges in a winding region formed by the flange and the core. A bobbin for a transformer characterized by having a portion.
変成器の一次コイルの側面が二次コイルの側面と同一面
を形成しないように変成器の一次コイルと二次コイルを
構成することを特徴とする変成器。2. A transformer bobbin according to claim 1,
A transformer comprising a primary coil and a secondary coil of a transformer such that a side surface of a primary coil of the transformer does not form the same plane as a side surface of a secondary coil.
を用い、前記段差部と段差部に接していない方の鍔とに
挟まれる領域で、一次コイルと二次コイルのいずれか一
方のコイルを前記巻芯に巻回してなる内側コイルと、前
記内側コイルの外周に絶縁層を設け、前記段差部に接し
ていない方の鍔に接するとともに前記絶縁層に沿ってス
ペーサを設け、前記段差部に接している鍔と前記スペー
サとに挟まれる領域で前記絶縁層の外周に、一次コイル
と二次コイルのいずれかで未巻線のコイルを巻回して形
成した外側コイルとからなることを特徴とする変成器。3. A coil of one of a primary coil and a secondary coil in a region sandwiched between the step portion and a flange that is not in contact with the step portion, using the transformer bobbin according to claim 1 or 2. An inner coil wound around the core, an insulating layer provided on the outer periphery of the inner coil, a spacer in contact with a flange not in contact with the step portion and a spacer provided along the insulating layer, And an outer coil formed by winding an unwound coil with either a primary coil or a secondary coil on the outer periphery of the insulating layer in a region sandwiched between the flange contacting the spacer and the spacer. And transformer.
ルの段差部に接していない鍔側から引き出してなること
を特徴とする請求項３記載の変成器。4. The transformer according to claim 3, wherein a terminal portion of the inner coil is drawn out from a flange side not in contact with a step portion of the inner coil.
ルの段差部に接している鍔側から引き出してなることを
特徴とする請求項３または４記載の変成器。5. The transformer according to claim 3, wherein a terminal portion of the outer coil is pulled out from a flange side in contact with a step portion of the outer coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9284491A JPH11111534A (en) | 1997-09-30 | 1997-09-30 | Bobbin for transformer and the transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9284491A JPH11111534A (en) | 1997-09-30 | 1997-09-30 | Bobbin for transformer and the transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11111534A true JPH11111534A (en) | 1999-04-23 |
Family
ID=17679213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9284491A Withdrawn JPH11111534A (en) | 1997-09-30 | 1997-09-30 | Bobbin for transformer and the transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11111534A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019010732A1 (en) * | 2017-07-13 | 2019-01-17 | 深圳市艾尔曼医疗电子仪器有限公司 | Insulated encapsulated transformer and high voltage winding bobbin thereof |
| WO2022149314A1 (en) * | 2021-01-08 | 2022-07-14 | 株式会社日立製作所 | Transformer |
-
1997
- 1997-09-30 JP JP9284491A patent/JPH11111534A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019010732A1 (en) * | 2017-07-13 | 2019-01-17 | 深圳市艾尔曼医疗电子仪器有限公司 | Insulated encapsulated transformer and high voltage winding bobbin thereof |
| WO2022149314A1 (en) * | 2021-01-08 | 2022-07-14 | 株式会社日立製作所 | Transformer |
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