JPS59144112A - Core assembly for leakage transformer - Google Patents
Core assembly for leakage transformerInfo
- Publication number
- JPS59144112A JPS59144112A JP58019109A JP1910983A JPS59144112A JP S59144112 A JPS59144112 A JP S59144112A JP 58019109 A JP58019109 A JP 58019109A JP 1910983 A JP1910983 A JP 1910983A JP S59144112 A JPS59144112 A JP S59144112A
- Authority
- JP
- Japan
- Prior art keywords
- core
- ring core
- leg
- legs
- center leg
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/08—High-leakage transformers or inductances
- H01F38/10—Ballasts, e.g. for discharge lamps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
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用の
コア 組立体に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a core assembly for a leaky transformer used in a ballast for a discharge lamp or the like.
従来から1次コイルおよび2次コイルを、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次コイルノ間ニバスコアあるいはシャン
トコアと称する板状あるいは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を積層した形式のもので
あって、製造がやっかいであシ、また全体形状が比較的
大きく、鉄損も大きい。特に高い周波数で使用する場合
は鉄損の影響が大きく、効率低下となる欠点がある。Conventionally, a primary coil and a secondary coil are wound around a bobbin or core so that the coil axes coincide, and a plate-shaped or rod-shaped core called a niva core or shunt core is placed between the primary coil and the secondary coil. A leaky transformer is known. However, the conventional core for this type of transformer is of a type in which silicon steel plates are laminated, which is cumbersome to manufacture, has a relatively large overall shape, and has a large core loss. Particularly when used at high frequencies, the influence of iron loss is large, resulting in a reduction in efficiency.
これを解決するために全体をフェライトコアで構成した
第1図のような変圧器用コア組立体が提案されている。In order to solve this problem, a transformer core assembly as shown in FIG. 1, which is entirely composed of a ferrite core, has been proposed.
この#構成を簡単に説明すれば、E形フェライトコアl
は長方形の背柱壁2の両端に角形の外側脚3,4が連接
され、また背柱壁2の中央に外側脚3.4と#1は同じ
長さの円柱形の中央N5が形成されている。中空の7エ
ライトコア即ちリングコア6は中心に貫通孔7を有する
円筒形のコアである。2個のE形フェライトコア1゜1
′がそれらの脚部3と3′、4と4′および5と5′を
互いに向き合うように全体として日字形に組み合せられ
、その中央脚5,5′先端付近にリングコア6が挿入さ
、れ、第2図に示す如く、各中央脚5゜5′にそれぞれ
1次コイル8.2次コイル9が巻き付けられ、これによ
って漏洩変圧器が構成される。To briefly explain this # configuration, E type ferrite core l
The square outer legs 3 and 4 are connected to both ends of the rectangular back column wall 2, and in the center of the back column wall 2, the outer legs 3.4 and #1 form a cylindrical center N5 of the same length. ing. The hollow 7-elite core or ring core 6 is a cylindrical core with a through hole 7 in the center. 2 E-type ferrite cores 1゜1
' are combined in a Japanese-shape as a whole with their legs 3 and 3', 4 and 4', and 5 and 5' facing each other, and a ring core 6 is inserted near the tips of the central legs 5 and 5'. As shown in FIG. 2, a primary coil 8 and a secondary coil 9 are wound around each central leg 5° 5', thereby forming a leakage transformer.
第1図に示すようなE形フェライトコア1を成形によ)
製造するには、第3図に示す如くコア1の素材を横にし
て上型10,10′、10″および下mll、11’、
11“によシ上下方向に加圧して各部を成形する。この
場合、中央脚5は完全な円形断面となっているので成形
完了時に該中央脚の部分の上下屋10’、11’の先端
10a、llaが互いに干渉し、型を毀損する危険があ
るとともに、円柱形中央脚5の寸法誤差が生じるという
不具合があった。By molding an E-type ferrite core 1 as shown in Figure 1)
To manufacture, as shown in FIG.
11", pressurize in the vertical direction to mold each part. In this case, since the central leg 5 has a completely circular cross section, when molding is completed, the tips of the upper and lower chambers 10' and 11' of the central leg part 10a and lla interfere with each other, causing a risk of damaging the mold and causing a dimensional error in the cylindrical central leg 5.
本発明は上述の不具合をなくすとともに中央脚に装着さ
れるリングコアを所定位置に保持することができるよう
にした漏洩変圧器用コア組立体を提供することを目的と
する。SUMMARY OF THE INVENTION It is an object of the present invention to provide a core assembly for a leaky transformer which eliminates the above-mentioned disadvantages and which is capable of holding a ring core attached to a central leg in a predetermined position.
以下、本発明を図面を診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4図は本発明に係るE形7エライトコア1の脚部側か
らみた側面図、第5図はこのE形フェライトコア1の中
央脚5に装着されるリングコア6の端面図である。板状
の背柱壁2の両端に板状の外側脚3,4が連接されてい
るところは第1図で説明した従来例と同じであるが、第
4図の実施例では中央脚5が小判貨幣の断面となってい
る。即ち外側脚3,4に対面する両側部分が外側脚の板
面と平行な平坦面5a+5bに形成されている。FIG. 4 is a side view of the E-type 7 ferrite core 1 according to the present invention as seen from the leg side, and FIG. 5 is an end view of the ring core 6 attached to the center leg 5 of the E-type ferrite core 1. The plate-shaped outer legs 3 and 4 are connected to both ends of the plate-shaped back column wall 2, which is the same as the conventional example explained in FIG. 1, but in the embodiment shown in FIG. This is a cross section of a small coin. That is, both side portions facing the outer legs 3 and 4 are formed into flat surfaces 5a+5b parallel to the plate surfaces of the outer legs.
またリングコア6も、第5図に示すように、前記中央脚
5に対応した一対の平坦面7a、7bをもつ貫通孔7が
形成されている。第6図は第゛4図に示したようなE形
フェライトコア1,1′を日字形に組み合せ、その中央
脚5,5′の間に第5図の如きリングコア6を装着した
コア組立体の側面図であ、る。中央脚5または5′の平
坦面5aiたは5bとリン夛コア6の孔7の平坦面7a
+7b部分とが接触することによシリングコア6が中央
脚に対して回転することがなく、これによってリングコ
ア6の位置すれが防止される。Further, the ring core 6 is also formed with a through hole 7 having a pair of flat surfaces 7a and 7b corresponding to the central leg 5, as shown in FIG. FIG. 6 shows a core assembly in which E-type ferrite cores 1 and 1' as shown in FIG. 4 are combined in a Japanese letter shape, and a ring core 6 as shown in FIG. It is a side view of. The flat surface 5ai or 5b of the central leg 5 or 5' and the flat surface 7a of the hole 7 of the phosphor core 6
Due to the contact with the +7b portion, the ring core 6 does not rotate relative to the center leg, thereby preventing the ring core 6 from being misaligned.
第7図は本発明に係るE形7エ2イトコア1を成形する
ときの成形型を示した断面図である。この場合中央脚5
は平坦面5aj5bを有しているので上下金型の先端1
0b、Ilbは互いに干渉することがなく、成形品の形
状、寸法精度が向上する。FIG. 7 is a sectional view showing a mold for molding the E-type 7-eight core 1 according to the present invention. In this case center leg 5
has a flat surface 5aj5b, so the tip 1 of the upper and lower molds
0b and Ilb do not interfere with each other, improving the shape and dimensional accuracy of the molded product.
第1図は従来の変圧器用コア組立体の胴視図、第2図は
第1図のコア組立体を用いた漏洩変圧器の平面図、第3
図は第1図のコア組立体の成形状態を示した概略図、第
4図は本発明の実施例に係るE形フェライトコアを脚部
側からみた側面図、茅5図は本発明の実施例に適用され
るリングコアの端面図、第6図は本発明に係る変圧器用
コア組立体の千1m図、第7図は本発明に係るE形フェ
ライトコアの成形型を、その動作中の状態で示した断面
図である。
1.1′・・・E形フェライトコア、
3.4・・・外側脚、5・・・中央脚、6・・・リング
コア、
5 a + 5 bs 7 a # 7 b ”’平
坦面、7−・負通孔、10. 10’、 1 (1’
−・・上型、11.11’、11“・・・下型。
代理人 弁理士 染 川 利 吉
第1図
1゜
第2図
第3図
第4図 第5図
第7図
第1頁の続き
0発 明 者 小野寺義伸
川崎市幸区堀用町72番地東芝電
材株式会社堀川町事業場内
0発 明 者 青地南城
川崎市幸区堀用町72番地東芝電
材株式会社堀川町事業場内
■出 願 人 東芝電材株式会社
東京都港区芝浦1丁目1番43号Fig. 1 is a trunk view of a conventional transformer core assembly, Fig. 2 is a plan view of a leaky transformer using the core assembly of Fig. 1, and Fig. 3 is a top view of a leaky transformer using the core assembly of Fig. 1.
The figure is a schematic view showing the molded state of the core assembly in Figure 1, Figure 4 is a side view of the E-type ferrite core according to the embodiment of the present invention, seen from the leg side, and Figure 5 is a diagram showing the embodiment of the present invention. FIG. 6 is an end view of a ring core applied to the example, FIG. 6 is a 1,000-meter view of a transformer core assembly according to the present invention, and FIG. 7 is a mold for an E-type ferrite core according to the present invention, in its operating state. FIG. 1.1'... E-type ferrite core, 3.4... Outer leg, 5... Center leg, 6... Ring core, 5 a + 5 bs 7 a #7 b ''' flat surface, 7 -・Negative through hole, 10. 10', 1 (1'
-...Top mold, 11.11', 11"...Bottom mold. Agent Patent Attorney Rikichi Kawa Figure 1 1° Figure 2 Figure 3 Figure 4 Figure 5 Figure 7 Page 1 Continued 0 Author: Yoshinobu Onodera Inside Toshiba Electric Materials Corporation's Horikawa-cho Plant, 72 Horiyo-cho, Saiwai-ku, Kawasaki City0 Author: Aochi Minamijo Inside Toshiba Electric Materials Corporation's Horikawa-cho Plant, 72 Horiyo-cho, Saiwai-ku, Kawasaki City■ Applicant Toshiba Electric Materials Corporation 1-1-43 Shibaura, Minato-ku, Tokyo
Claims (1)
た一対のフェライトコアと、前記中央脚が挿入されるリ
ングコアとを有し、前記一対のフェライトコアをその脚
部が向き合うように日字形に配置し、前記リングコアを
前記中央脚のほぼ先端付近に装着して成る漏洩変圧器用
コア組立体において、前記中央脚の両側部を平坦面に形
成し、前記リングコアの内周部に前記中央脚の外周形状
に適合するように部分的な平坦面を形成したことを%徴
とする漏洩変圧器用コア組立体。It has a pair of ferrite cores in which two outer legs and a roughly cylindrical central leg are connected by a dorsal wall, and a ring core into which the central legs are inserted, and the pair of ferrite cores are arranged so that the legs face each other. In the core assembly for a leaky transformer, the ring core is arranged in a Japanese character shape, and the ring core is attached almost near the tip of the center leg, wherein both sides of the center leg are formed into flat surfaces, and the ring core has a ring core attached to the inner circumference of the ring core. A core assembly for a leaky transformer characterized by forming a partial flat surface to match the outer peripheral shape of the central leg.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58019109A JPS59144112A (en) | 1983-02-08 | 1983-02-08 | Core assembly for leakage transformer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58019109A JPS59144112A (en) | 1983-02-08 | 1983-02-08 | Core assembly for leakage transformer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59144112A true JPS59144112A (en) | 1984-08-18 |
JPH059928B2 JPH059928B2 (en) | 1993-02-08 |
Family
ID=11990306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58019109A Granted JPS59144112A (en) | 1983-02-08 | 1983-02-08 | Core assembly for leakage transformer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59144112A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013172135A (en) * | 2012-02-23 | 2013-09-02 | Fdk Corp | Transformer |
CN107195446A (en) * | 2017-07-26 | 2017-09-22 | 南通壹选工业设计有限公司 | A kind of magnetic core of transformer and transformer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08323894A (en) * | 1995-06-02 | 1996-12-10 | Toho Kikai Kogyo Kk | Bag making machine |
-
1983
- 1983-02-08 JP JP58019109A patent/JPS59144112A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013172135A (en) * | 2012-02-23 | 2013-09-02 | Fdk Corp | Transformer |
CN107195446A (en) * | 2017-07-26 | 2017-09-22 | 南通壹选工业设计有限公司 | A kind of magnetic core of transformer and transformer |
CN107195446B (en) * | 2017-07-26 | 2019-06-14 | 南通鑫源电器制造有限公司 | A kind of magnetic core of transformer and transformer |
Also Published As
Publication number | Publication date |
---|---|
JPH059928B2 (en) | 1993-02-08 |
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