JPH0414487B2 - - Google Patents
Info
- Publication number
- JPH0414487B2 JPH0414487B2 JP57155063A JP15506382A JPH0414487B2 JP H0414487 B2 JPH0414487 B2 JP H0414487B2 JP 57155063 A JP57155063 A JP 57155063A JP 15506382 A JP15506382 A JP 15506382A JP H0414487 B2 JPH0414487 B2 JP H0414487B2
- Authority
- JP
- Japan
- Prior art keywords
- core
- bobbin
- leg
- bobbins
- hollow 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
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
Description
【発明の詳細な説明】
本発明は放電灯用安定器等に使用される漏洩変
圧器に関する。従来から、１次コイルと２次コイ
ルとを、コイル軸線が一致するようにして、ボビ
ンまたはコアに巻き付け、この１次コイルと２次
コイルとの間にパスコアあるいはシヤントコア
（例えば特公昭44−13885、特開昭56−115512）と
称する板状ないし棒状のコアを配置して、漏洩変
圧器を構成したものが知られている。しかし従来
のこの種の変圧器用コアは珪素鋼板等の薄板を積
層した形態のものであつて、製造がやつかいであ
り、また全体形状が比較的大形となり、鉄損も大
きい。特に高い周波数で使用する場合は鉄損が大
きく効率低下をきたす欠点があつた。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a leaky transformer used in a ballast for a discharge lamp or the like. Conventionally, a primary coil and a secondary coil are wound around a bobbin or core so that the coil axes coincide, and a pass core or shunt core (for example, a pass core or a shunt core (for example, A leakage transformer is known in which a plate-shaped or rod-shaped core is arranged, which is referred to as JP-A-56-115512). However, conventional cores for transformers of this type have a form in which thin plates such as silicon steel plates are laminated, and are difficult to manufacture, and the overall shape is relatively large, resulting in large iron loss. Particularly when used at high frequencies, it had the disadvantage of high iron loss and reduced efficiency.
これを解決するために本出願人は、別に、２本
の外側脚と中央脚とを背側壁で連結した一対のフ
エライトコアを、前記外側脚および中央脚とが相
手方の脚部と互いに対向するように向き合せて接
合し、この両中央脚の接合部付近で該中央脚の外
周に中空フエライトコアを配置した漏洩変圧器用
コア組立体を開示した。 In order to solve this problem, the applicant separately provided a pair of ferrite cores in which two lateral legs and a central leg were connected by a dorsal wall, so that the lateral legs and the central leg faced the other leg. A core assembly for a leaky transformer has been disclosed in which both central legs are joined together facing each other, and a hollow ferrite core is disposed around the outer periphery of the central leg in the vicinity of the joint between the two central legs.
本発明は、この漏洩変圧器用コア組立体と筒状
部両端につば部を形成した一対のボビンを組み合
せて使用されかつ該コア組立体の中空フエライト
コアを確実かつ容易に位置決め保持することので
きる漏洩変圧器を提供することを目的とする。 The present invention is used in combination with this leaky transformer core assembly and a pair of bobbins having flanges formed at both ends of the cylindrical part, and is capable of reliably and easily positioning and holding the hollow ferrite core of the core assembly. The purpose is to provide a leaky transformer.
本発明に係る漏洩変圧器は、筒状部両端につば
部を形成した一対のボビンを互いに同芯状に向き
合せて隔置し、それぞれ２本の外側脚および１本
の円柱形の中央脚をもつ一対のＥ形フエライトコ
アを前記一対のボビンの軸方向外側から、前記中
央脚が前記ボビンの筒状部に挿入される如くして
前記ボビンに装着し、さらに各ボビンの対向した
つば部の間に中空コアを挟み、かつ前記Ｅ形フエ
ライトコアの中央脚を前記中央脚どおしおよび外
側脚どおしを直接または絶縁板を介して接当させ
た漏洩変圧器において、前記各ボビンの対向した
つば部の端面に、互いに略等間隔で周方向に離隔
しかつ前記中空コアの外周面または内周面と係合
する複数個の略三角形の爪状突起部を前記つば部
の半径方向に若干変形し得るように形成し、前記
爪状突起部の略三角形の頂部が前記中空コアの外
周面または内周面と係合して該中空コアの位置決
め保持を行うようにしたものである。 A leaky transformer according to the present invention includes a pair of bobbins having flanges formed at both ends of a cylindrical part, facing each other concentrically and spaced apart, each having two outer legs and one cylindrical central leg. A pair of E-shaped ferrite cores having a diameter are attached to the bobbin from the axial outside of the bobbin so that the central leg is inserted into the cylindrical part of the bobbin, and the opposing collar part of each bobbin is attached to the bobbin. A leaky transformer in which a hollow core is sandwiched between each bobbin, and the central leg of the E-type ferrite core is brought into contact with both the central legs and the outer legs directly or through an insulating plate. A plurality of approximately triangular claw-like protrusions are provided on the end faces of the opposing flange portions at approximately equal intervals in the circumferential direction and engage with the outer circumferential surface or inner circumferential surface of the hollow core. The hollow core is formed so that it can be slightly deformed in the direction, and the substantially triangular top of the claw-like protrusion engages with the outer circumferential surface or inner circumferential surface of the hollow core to position and hold the hollow core. be.
以下、本発明を、図面を参照しながら、実施例
について説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明に係る漏洩変圧器用ボビンおよ
びこれに組み合されるコアを組立順に分解して示
した斜視図である。この実施例のコアは一対のＥ
形フエライトコア１，１′と円筒形の中空フエラ
イトコア（中空コア）２とから成る。Ｅ形フエラ
イトコア１は矩形の背柱３の両端に矩形の外側脚
４，５が連接され、また背柱３の中央に外側脚
４，５とほぼ同じ長さの例えば断面円形の中央脚
６が形成されている。中空コア２はその中心に貫
通孔７を有する。後述する如く、この貫通孔７に
Ｅ形フエライトコア１の中央脚６が挿入され、一
対のＥ形フエライトコア１，１′がそれらの脚部
を互いに向き合うようにして組み付けられ、これ
によつて漏洩変圧器用コア組立体が構成される。
このコア組立体に対して一対のつば付きボビン
（コイル巻枠）１０，１０′が組み付けられる。 FIG. 1 is a perspective view showing a leaky transformer bobbin according to the present invention and a core assembled therein, disassembled in the order of assembly. The core of this example is a pair of E
It consists of shaped ferrite cores 1, 1' and a cylindrical hollow ferrite core (hollow core) 2. In the E-shaped ferrite core 1, rectangular outer legs 4 and 5 are connected to both ends of a rectangular back column 3, and a center leg 6 having approximately the same length as the outer legs 4 and 5 and having a circular cross section, for example, is provided at the center of the back column 3. is formed. The hollow core 2 has a through hole 7 at its center. As will be described later, the central leg 6 of the E-type ferrite core 1 is inserted into the through hole 7, and the pair of E-type ferrite cores 1, 1' are assembled with their legs facing each other. A leaky transformer core assembly is constructed.
A pair of flanged bobbins (coil winding frames) 10, 10' are assembled to this core assembly.
ボビン１０は、筒状部１１の両端につば１２，
１３が形成されかつその一方のつば１３に連接し
て基台部１４が設けられこれによつて筒状部１１
が片持ばり状の形態に保持されている。基台部１
４には端子１５が取り付けられている。 The bobbin 10 has a collar 12 at both ends of the cylindrical part 11,
13 is formed, and a base portion 14 is provided in connection with one of the brim 13, whereby the cylindrical portion 11
is held in a cantilever shape. Base part 1
A terminal 15 is attached to the terminal 4.
第１図の実施例では、先端のつば１２の外端面
の外周近くに、周方向に離隔して複数個の爪状の
突起１６が形成されている。中空コア２の外径を
a1、つば１２の爪状突起１６の内端部におけるボ
ビン中心まわりの直径を、図示の如くa2とすれ
ば、a1≧a2（a1をa2と等しいか若干大きくする）
となつている。 In the embodiment shown in FIG. 1, a plurality of claw-like protrusions 16 are formed near the outer periphery of the outer end surface of the tip collar 12 and spaced apart in the circumferential direction. The outer diameter of hollow core 2 is
a 1 , if the diameter around the center of the bobbin at the inner end of the claw-like projection 16 of the collar 12 is a 2 as shown in the figure, then a 1 ≧ a 2 (a 1 is equal to or slightly larger than a 2 )
It is becoming.
このような構成において、一対のＥ形フエライ
トコア１，１′の背柱下部をボビン１０，１０′の
基台部１４，１４′に載置するようにしてその中
央脚６，６′をボビン１０，１０′の筒状部１１，
１１′に挿入する。この実施例では、第２図ａ，
ｂに示す如く、Ｅ形フエライトコア１，１′の中
央脚６，６′の先端とボビン片端のつば１２′の端
面とが等しくなる様な寸法関係にしてある。中空
コア２をつば１２端面の爪状突起１６に係合させ
て保持し、その両側からボビン１０，１０′のつ
ば１２，１２′ではさみつける。この場合、中空
コア２の外径a1と突起１６の内端直径a2とが上述
の寸法関係にあることから、爪状突起１６を若干
外方へ押し拡げるようにして該突起に中空コア２
を嵌合させる。Ｅ形フエライトコア１の外側脚
４，５は相手側のＥ形コア１′の外側脚４′，５′
と接合し、同様に中央脚６は中空コア２の貫通孔
７を通つて相手側の中央脚６′と接合する。ボビ
ン１０，１０′の筒状部外周に１次コイル１７お
よび２次コイル１８を巻き付けると第２図ａ，ｂ
に示すような漏洩変圧器が得られる。第３図は本
発明の他の実施例に係るボビンのつば端面を示し
た図である。この実施例ではつば１２の端面の爪
状突起１６は、該つばの内周近傍位置の端面に形
成してある。この場合は、同図中に破線で示す中
空コア２の内径をa3、爪状突起１６の外径をa4と
して、a3≦a4（a3はa4と等しいか若干小さ目にす
る）の寸法関係に構成し、これによつて中空コア
２の貫通孔７の内周部を爪状突起１６の外径部
に、該爪状突起部を内側に押し縮めるようにし
て、嵌合させる。 In such a configuration, the lower portions of the spines of the pair of E-shaped ferrite cores 1, 1' are placed on the base portions 14, 14' of the bobbins 10, 10', and the central legs 6, 6' are attached to the bobbins. 10, 10' cylindrical part 11,
11'. In this embodiment, FIG.
As shown in Fig. b, the dimensional relationship is such that the tips of the central legs 6, 6' of the E-shaped ferrite cores 1, 1' are equal to the end surface of the collar 12' at one end of the bobbin. The hollow core 2 is held by engaging with the claw-like protrusion 16 on the end face of the collar 12, and is sandwiched between the collars 12, 12' of the bobbins 10, 10' from both sides. In this case, since the outer diameter a 1 of the hollow core 2 and the inner diameter a 2 of the protrusion 16 have the above-mentioned dimensional relationship, the hollow core is attached to the protrusion by pushing the claw-like protrusion 16 outward slightly. 2
mate. The outer legs 4, 5 of the E-type ferrite core 1 are the outer legs 4', 5' of the E-type core 1' on the other side.
Similarly, the central leg 6 passes through the through hole 7 of the hollow core 2 and connects with the mating central leg 6'. When the primary coil 17 and the secondary coil 18 are wound around the outer periphery of the cylindrical part of the bobbin 10, 10', Fig. 2 a and b
A leaky transformer as shown in is obtained. FIG. 3 is a diagram showing a collar end face of a bobbin according to another embodiment of the present invention. In this embodiment, the claw-like protrusions 16 on the end surface of the collar 12 are formed on the end surface near the inner circumference of the collar. In this case, a 3 is the inner diameter of the hollow core 2 shown by the broken line in the figure, and a 4 is the outer diameter of the claw-like protrusion 16, so that a 3 ≦a 4 (a 3 is equal to or slightly smaller than a 4 ). ), so that the inner periphery of the through hole 7 of the hollow core 2 is fitted to the outer diameter of the claw-like protrusion 16 by compressing the claw-like protrusion inward. let
なお、本発明では両側のボビンについてその対
向したつば端にそれぞれ爪状突起を形成してもよ
く、あるいはいずれか一方のボビン１０または１
０′のつばにのみ上述の爪状突起を形成して中空
コア２の片側のみを該爪状突起に嵌合させるよう
にしてもよい。さらに図示の実施例では片側のＥ
形フエライトコア１の中央脚６を他方のコア１′
の中央脚６′よりも長目に形成し、この片側中央
脚６を中空コア２に深く挿通し、該コア２の端面
近傍で相手方の中央脚６′と接合させるようにし
たが、両方のＥ形フエライトコア１の中央脚６，
６′をともに等しい長さで中空コア２に挿通し、
該コア２内の中央部分で両中央脚６，６′を接合
するようにしてもよい。なお、本発明の実施例に
示したＥ形コアないしボビンの筒状部の形状は実
施例のみに限定されることなく適宜変更し得るも
のである。上記実施例では各ボビンの片側に端子
付きの基台部をもつ構成としたが、本発明はこれ
に限定されるものでなく、端子のない基台部をも
つもの、あるいは基台部のない例えば第４図に示
すような筒状部両端につば１２，１３のみをもつ
構造にしてもよい。 Note that in the present invention, claw-like protrusions may be formed on the opposing flange ends of both bobbins, or on either one of the bobbins 10 or 1.
The above-described claw-like projection may be formed only on the collar 0', and only one side of the hollow core 2 may be fitted into the claw-like projection. Furthermore, in the illustrated embodiment, one side of E
The central leg 6 of the shaped ferrite core 1 is connected to the other core 1'
The center leg 6 on one side is formed to be longer than the center leg 6' of the core 2, and the center leg 6 on one side is deeply inserted into the hollow core 2 and joined to the other center leg 6' near the end surface of the core 2. Central leg 6 of E-type ferrite core 1,
6′ are both inserted into the hollow core 2 with the same length,
Both central legs 6, 6' may be joined at a central portion within the core 2. Note that the shape of the E-shaped core or the cylindrical portion of the bobbin shown in the embodiments of the present invention is not limited to the embodiments and can be changed as appropriate. In the above embodiment, each bobbin has a base portion with a terminal on one side, but the present invention is not limited to this. For example, the structure may be such that the cylindrical portion has only flanges 12 and 13 at both ends as shown in FIG.
本発明の漏洩変圧器によれば、パスコアをもつ
コア組立体を確実に位置決めして保持することが
できる。本発明においてはボビンと併せて使用す
るコア組立体はフエライトコアを用いているの
で、高い周波数で使用しても熱損の発生が少な
く、全体として小形かつ効率のよい、放電灯装置
等に用いて好適な漏洩変圧器を得ることができ
る。 According to the leaky transformer of the present invention, a core assembly having a pass core can be reliably positioned and held. In the present invention, since the core assembly used in conjunction with the bobbin uses a ferrite core, there is little heat loss even when used at high frequencies, and the overall size is small and efficient, making it suitable for use in discharge lamp devices, etc. Thus, a suitable leakage transformer can be obtained.
第１図は本発明に係る放電灯トランス用ボビン
およびコア組立体を分解して示した斜視図、第２
図ａは本発明を適用した放電灯トランスの概略的
な平面図、第２図ｂは第２図ａのＡ−Ａ線に沿つ
た側面断面図、第３図は本発明の他の実施例を示
したボビンのつばの端面図、第４図は本発明のさ
らに他の実施例になるボビンの斜視図である。
１，１′…Ｅ形フエライトコア、２…中空コア、
１０，１０′…ボビン、１１…筒状部、１２…つ
ば部、１４…基台部、１６…爪状突起。
FIG. 1 is an exploded perspective view of a bobbin and core assembly for a discharge lamp transformer according to the present invention, and FIG.
Figure a is a schematic plan view of a discharge lamp transformer to which the present invention is applied, Figure 2 b is a side sectional view taken along line A-A in Figure 2 a, and Figure 3 is another embodiment of the present invention. FIG. 4 is a perspective view of a bobbin according to still another embodiment of the present invention. 1, 1′...E type ferrite core, 2...Hollow core,
DESCRIPTION OF SYMBOLS 10, 10'... Bobbin, 11... Cylindrical part, 12... Collar part, 14... Base part, 16... Claw-shaped projection.
Claims (1)
を互いに同芯状に向き合せて隔置し、それぞれ２
本の外側脚および１本の円柱形の中央脚をもつ一
対のＥ形フエライトコアを前記一対のボビンの軸
方向外側から、前記中央脚が前記ボビンの筒状部
に挿入される如くして前記ボビンに装着し、さら
に各ボビンの対向したつば部の間に中空コアを挟
み、かつ前記Ｅ形フエライトコアの中央脚を前記
中央脚どおしおよび外側脚どおしを直接または絶
縁板を介して接当させた漏洩変圧器において、前
記各ボビンの対向したつば部の端面に、互いに略
等間隔で周方向に離隔しかつ前記中空コアの外周
面または内周面と係合する複数個の略三角形の爪
状突起部を前記つば部の半径方向に若干変形し得
るように形成し、前記爪状突起部の略三角形の頂
部が前記中空コアの外周面または内周面と係合し
て該中空コアの位置決め保持を行うようにしたこ
とを特徴とする漏洩変圧器。1. A pair of bobbins with flanges formed at both ends of the cylindrical portion are spaced concentrically facing each other, and each
A pair of E-shaped ferrite cores each having an outer leg and a cylindrical center leg are inserted from the axially outer side of the pair of bobbins such that the center leg is inserted into the cylindrical portion of the bobbin. The central leg of the E-type ferrite core is attached to the bobbin, and the hollow core is sandwiched between the opposing flanges of each bobbin, and the central leg and the outer leg of the E-shaped ferrite core are connected directly or through an insulating plate. In the leaky transformer in which the bobbins are brought into contact with each other, a plurality of pieces are provided on the end surfaces of the opposed collars of each of the bobbins, spaced apart from each other in the circumferential direction at approximately equal intervals, and engaged with the outer circumferential surface or the inner circumferential surface of the hollow core. A substantially triangular claw-like protrusion is formed so as to be slightly deformable in the radial direction of the collar, and the substantially triangular top of the claw-like protrusion engages with the outer peripheral surface or inner peripheral surface of the hollow core. A leaky transformer characterized in that the hollow core is positioned and held.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57155063A JPS5944811A (en) | 1982-09-06 | 1982-09-06 | Bobbin structure for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57155063A JPS5944811A (en) | 1982-09-06 | 1982-09-06 | Bobbin structure for transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5944811A JPS5944811A (en) | 1984-03-13 |
| JPH0414487B2 true JPH0414487B2 (en) | 1992-03-13 |
Family
ID=15597852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57155063A Granted JPS5944811A (en) | 1982-09-06 | 1982-09-06 | Bobbin structure for transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5944811A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7373119B2 (en) * | 2020-02-19 | 2023-11-02 | スミダコーポレーション株式会社 | magnetically coupled inductor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56162608U (en) * | 1980-04-30 | 1981-12-03 |
-
1982
- 1982-09-06 JP JP57155063A patent/JPS5944811A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5944811A (en) | 1984-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH06105471A (en) | Electromagentic power supply | |
| JPH0414487B2 (en) | ||
| JPS5944812A (en) | Core composing members for leakage transformer | |
| US4394636A (en) | Structure of a transformer | |
| JPS6239524B2 (en) | ||
| JPS59144112A (en) | Core assembly for leakage transformer | |
| JPH0227546Y2 (en) | ||
| JPH046185Y2 (en) | ||
| JPS5895804A (en) | Iron core of small-sized transformer | |
| JPH0416411Y2 (en) | ||
| JPS6342498Y2 (en) | ||
| JPS5820527U (en) | discharge lamp ballast | |
| JPS5940740Y2 (en) | Trance | |
| JPH08153634A (en) | Transformer for inverter | |
| JPS6312809U (en) | ||
| JPS5940743Y2 (en) | flyback transformer | |
| JPS6112643Y2 (en) | ||
| KR100326600B1 (en) | Structure for assembling Transformer | |
| JPS6015293Y2 (en) | flyback transformer | |
| JPH03109319U (en) | ||
| JPH10189352A (en) | Transformer | |
| JPS582014Y2 (en) | Small transformer coil bobbin | |
| JPS5810346Y2 (en) | Transformer insulation spacer | |
| JPH029526Y2 (en) | ||
| JPS63922B2 (en) |