JPS63502149A - A magnetic circuit with a small leakage magnetic field, mainly used in high-voltage transformers to supply power to cathode ray tubes. - Google Patents
A magnetic circuit with a small leakage magnetic field, mainly used in high-voltage transformers to supply power to cathode ray tubes.Info
- Publication number
- JPS63502149A JPS63502149A JP50637886A JP50637886A JPS63502149A JP S63502149 A JPS63502149 A JP S63502149A JP 50637886 A JP50637886 A JP 50637886A JP 50637886 A JP50637886 A JP 50637886A JP S63502149 A JPS63502149 A JP S63502149A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic circuit
- magnetic
- air gap
- circuits
- cathode ray
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
Landscapes
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Soft Magnetic Materials (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 陰極線管に電力を供給するための高圧変圧器に主として利用される漏れ磁場が小 さな磁気回路本発明は漏れ磁場が小さな磁気回路に関するものである。[Detailed description of the invention] The leakage magnetic field is small, which is mainly used in the high-voltage transformer that supplies power to cathode ray tubes. TECHNICAL FIELD The present invention relates to a magnetic circuit with a small leakage magnetic field.
この磁気回路は、特に、陰極線管に電力を供給するための高圧変圧器に利用され る。This magnetic circuit is especially used in high-voltage transformers to power cathode ray tubes. Ru.
陰極線管等に電力を供給するのに使用される高圧変圧器のフェライト磁気回路内 のエアギャップの値は厳密に決まっているのが普通である。このエアギャップか ら発生するぼす。というのは、他の回路はアンテナ効果によりこの磁場を拾うか らである。In the ferrite magnetic circuit of a high-voltage transformer used to power cathode ray tubes, etc. The value of the air gap is usually strictly determined. Is this an air gap? A fire that occurs from This is because other circuits pick up this magnetic field due to the antenna effect. It is et al.
本発明が目的とするのは、エアギャップから発生する磁場の値が最小であり、周 囲の素子または回路に対する影響が無視できるぐらい小さい高圧変圧器用磁気回 路である。The purpose of the present invention is to minimize the value of the magnetic field generated from the air gap and Magnetic circuit for high voltage transformers with negligible effect on surrounding elements or circuits. It is a road.
この磁気回路は、大量生産する場合に特に製造が簡単でコストが安くてすむ。と いうのは、インダクタンス、特にこの変圧器の１次コイルのインダクタンスの値 の精度が低くてよいからである。This magnetic circuit is particularly simple and inexpensive to manufacture when mass produced. and That is, the value of inductance, especially the inductance of the primary coil of this transformer. This is because the accuracy of the calculation may be low.
本発明の磁気回路はＵ字型の２つの半回路で構成されるタイプの磁気回路である 。この磁気回路はコイル内にエアギャップを備えている。このエアギャップの厚 さはこの磁気回路を製造するときに２つの半回路のアーム部の先端部を正確に揃 えることにより決定する。次いで、この２つの半回路を、エアギャップ側にこの エアギャップの望ましい値とほぼ等しい厚さの非磁性材料からなるシミング部材 （介挿部材）を介在させて接合する。エアギャップとは逆の側ではこの２つの半 回路を互いに直接に接合する。The magnetic circuit of the present invention is a type of magnetic circuit composed of two U-shaped half circuits. . This magnetic circuit has an air gap within the coil. The thickness of this air gap When manufacturing this magnetic circuit, the tips of the arms of the two half circuits must be aligned accurately. Determined by Then connect these two half circuits to the air gap side. A shimming member made of non-magnetic material with a thickness approximately equal to the desired value of the air gap. (insertion member) to join. On the side opposite the air gap, these two halves Connect circuits directly to each other.
本発明は、添付の図面を参照して行う以下の実施例についての詳しい説明により さらによく理解できよう。なお、本発明がこの実施例に限定されることはない。The invention will be understood by way of the following detailed description of the embodiments, given with reference to the accompanying drawings. Let's understand it better. Note that the present invention is not limited to this example.
添付の図面めの高圧変圧器用である。しかし、本発明にこのような用途に限定さ れるものではなく、変圧器またはインダクタから漏れる磁場を減らしたい場合や 、磁気回路のコイルのインダクタンスの値を正確に設定したい場合に本発明を応 用することができる。This is for the high voltage transformer shown in the attached drawing. However, the present invention is not limited to such applications. If you want to reduce the magnetic field leaking from a transformer or inductor, or The present invention can be applied when it is desired to accurately set the inductance value of a coil in a magnetic circuit. can be used.
図面に示した磁気回路１は２つのフェライト製Ｕ字形半回路２と３を備えている 。両方の半回路２と３のアーム部の先端部にはそれぞれ参照番号４．５および６ ．７が付されている。半回路２と３のアーム部の先端部４と６は互いに密着させ てエアギャップが非常に小さくなるようにしなくてはならない。両アーム部を接 合すると、このエアギャップは厚さが０．１ｍｍ未満になる。The magnetic circuit 1 shown in the drawing comprises two ferrite U-shaped half-circuits 2 and 3. . The ends of the arms of both half-circuits 2 and 3 are marked with reference numbers 4.5 and 6 respectively. ．． 7 is attached. The tips 4 and 6 of the arm parts of the half circuits 2 and 3 are brought into close contact with each other. The air gap must be very small. Connect both arms. When combined, this air gap has a thickness of less than 0.1 mm.
先端部５と７の間に必要とされるエアギャップは、この先端部５と７を有するア ーム部を短くすることにより作り出す。両アーム部とも同じ長さ、すなわちエア ギャップの距離の半分の距離だけ短くすることが好ましい（両方のＵ字形半回路 の２本のアーム部はもともと同じ長さであることを仮定している）。先端部４． ５．６．７は以下のようにして揃える。すなわち、まず第１に先端部４と６に残 るエアギャップが平らで最小になるようにし、次いで、先端部５と７の間に所望 の値のエアギャップを形成する。The air gap required between tips 5 and 7 is Created by shortening the arm part. Both arms have the same length, i.e. air It is preferable to shorten by half the distance of the gap (both U-shaped halves It is assumed that the two arms are originally the same length). Tip 4. 5.6.7 are arranged as follows. That is, first of all, the remaining parts at the tips 4 and 6 are the air gap between tips 5 and 7 is flat and minimal, then the desired form an air gap with a value of .
堅固な磁気回路を構成するためには、非磁性材料からなるシミング部材８を先端 部５と７の間に接合する。このシミング部材８の厚さはエアギャップの望ましい 値とほぼ等しくして、接合用ジヨイントとしての機能をもたせる。このシミング 部材には機械的機能しかない。In order to construct a strong magnetic circuit, a shimming member 8 made of non-magnetic material must be attached to the tip. It is joined between parts 5 and 7. The thickness of this shimming member 8 is the desired thickness of the air gap. The value should be approximately equal to the value, so that it can function as a joining joint. This shimming The parts have only mechanical functions.
本発明の一変形例によれば、シミング部材８は磁性材料からなる。εの場合、磁 性特性が半回路２と３の磁性物性とは異なる磁性材料および／または断面積がこ の磁気回路のアーム部の断面積と異なる磁性材料をシミング部材の材料として用 いる。このような磁性材料を用いると、この磁気回路に取り付けるコイルのイン ダクタンスの値を変えることが可能である。１巻き以上の巻線（変圧器またはイ ンダクタの巻線）を有するコイル９が先端部５と７およびシミング部材８を取り 囲んでいる。According to a variant of the invention, the shimming member 8 consists of a magnetic material. For ε, magnetic This magnetic material and/or cross-sectional area have different magnetic properties from those of half circuits 2 and 3. A magnetic material different from the cross-sectional area of the arm part of the magnetic circuit is used as the material for the shimming member. There is. By using such magnetic materials, the coils installed in this magnetic circuit can be It is possible to change the value of the inductance. One or more turns of winding (transformer or A coil 9 with a winding of the conductor takes off the tips 5 and 7 and the shimming member 8. surrounding.
半回路２と３およびシミング部材８は急速硬化低温接合タイプの接合剤を用いて 接合して接合部の厚さが０．１ｍｍ未満となるようにすることが好ましい。コイ ルの枠は同じ接合剤を用いて先端部５と７に固定するとよい。The half circuits 2 and 3 and the shimming member 8 are made using a fast-curing low-temperature bonding agent. It is preferable to bond them so that the thickness of the bonded portion is less than 0.1 mm. Koi The frame of the frame is preferably fixed to the tips 5 and 7 using the same bonding agent.
陰極線管に電力を供給するための高圧変圧器を構成する際には、この高圧変圧器 の１次コイルのインダクタンスの値が極めて重要であることがわかっている。す なわち、このインダクタンスの値が８％以下の精度で決まっている必要がある。When configuring a high voltage transformer to power the cathode ray tube, this high voltage transformer It has been found that the value of the inductance of the primary coil of is extremely important. vinegar That is, the value of this inductance needs to be determined with an accuracy of 8% or less.
各変圧器のエアギャップの距離を個別に調整する従来法ではこの精度を得るのが 困難であった。It is difficult to achieve this accuracy using the conventional method of adjusting the air gap distance of each transformer individually. It was difficult.
これに対して本発明では、同一のバッチ中の変圧器またはインダクタに対して半 回路２と３のアーム部の長さが常に同じになるように加工し、この２つの半回路 をシミング部材８ならびにコイル９とともに自動的に接合するだけでよい。°こ の方法ではエアギャップの距離を半回路の接合後に調整する必要がない。それで いて、インダクタンスの値を容易に許容誤差範囲内に収めることができる。In contrast, in the present invention, half of the transformers or inductors in the same batch are Process so that the arm parts of circuits 2 and 3 are always the same length, and these two half circuits It is only necessary to automatically join together the shimming member 8 and the coil 9. °ko In the method described above, there is no need to adjust the air gap distance after joining the half circuits. So Therefore, the inductance value can be easily kept within the tolerance range.
さらに、本発明の磁気回路からの漏れ磁場は距離とともに急激に減少することが 観測された。例えば、漏れ磁場は、磁気回路の先端部４と６が接合した面に沿っ た方向にこの磁気回路から距離ｄ（例えば１ｃｍ）離れた地点で測定する。Furthermore, the leakage magnetic field from the magnetic circuit of the present invention decreases rapidly with distance. Observed. For example, the leakage magnetic field is generated along the surface where the tips 4 and 6 of the magnetic circuit are joined. Measurements are taken at a point a distance d (for example, 1 cm) from this magnetic circuit in the opposite direction.
この地点での磁場の値は磁気回路上の磁場の値の約１７３に減少している。The value of the magnetic field at this point has been reduced to about 173 of the value of the magnetic field on the magnetic circuit.
国際調査報告 ＡｈＪＮＥＸ Ｔｏ ’ｒｋ：＝ ｌ１ｆｒＥＲＮＡＴＩＯＮＡＬ ５ＥＡＲＣ ＨＲＥＰＯＲＴ ＯＮ■にヨ州ＡＴ工０ＮＡ１．．ＡＰＰＬＩＣＡＴＩＯＮ Ｎ ｏ、 ＰＣＴ／ＦＲ８６１００４１２（ＳＡ １５３４１）ＤＥ−Ａ−３４０２ ２７８０１１０８／８５ ＮｏｎｅＦＲ−Ａ−２５００６７９２７１０８／８２ ＮｏｎｅＤＥ−Ａ−３０４０３６１３２７１０Ｓ／８２ ＮｏｎｅＤＥ−Ａ− ２９２７１８２０８１０１／８１ Ｎｏｎｅinternational search report AhJNEX To’rk:=l1frERNATIONAL 5EARC HREPORT ON ．． APPLICATIONN o, PCT/FR86100412 (SA 15341) DE-A-3402 27801108/85 NoneFR-A-250067927108/82 NoneDE-A-304036132710S/82 NoneDE-A- 292718208101/81 None
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR85/17948 | 1985-12-04 | ||
| FR8517948A FR2591024B1 (en) | 1985-12-04 | 1985-12-04 | LOW MAGNETIC RADIUS MAGNETIC CIRCUIT, PARTICULARLY FOR A HIGH VOLTAGE TRANSFORMER SUPPLYING A CATHODE RAY TUBE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63502149A true JPS63502149A (en) | 1988-08-18 |
Family
ID=9325439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50637886A Pending JPS63502149A (en) | 1985-12-04 | 1986-12-02 | A magnetic circuit with a small leakage magnetic field, mainly used in high-voltage transformers to supply power to cathode ray tubes. |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0225830B1 (en) |
| JP (1) | JPS63502149A (en) |
| DE (1) | DE3688181T2 (en) |
| ES (1) | ES2039358T3 (en) |
| FR (1) | FR2591024B1 (en) |
| WO (1) | WO1987003736A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009064990A (en) * | 2007-09-07 | 2009-03-26 | Sht Corp Ltd | Coil unit |
| CN105719825A (en) * | 2016-01-22 | 2016-06-29 | 深圳顺络电子股份有限公司 | Inductor and fabrication method thereof |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0471864B1 (en) * | 1990-08-17 | 1994-07-27 | TDK Corporation | Coil device |
| DE19528185A1 (en) * | 1995-08-01 | 1997-02-06 | Thomson Brandt Gmbh | transformer |
| US8237530B2 (en) | 2009-08-10 | 2012-08-07 | Volterra Semiconductor Corporation | Coupled inductor with improved leakage inductance control |
| US7898379B1 (en) | 2002-12-13 | 2011-03-01 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
| US7352269B2 (en) | 2002-12-13 | 2008-04-01 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
| US8299885B2 (en) | 2002-12-13 | 2012-10-30 | Volterra Semiconductor Corporation | Method for making magnetic components with M-phase coupling, and related inductor structures |
| US7498920B2 (en) | 2002-12-13 | 2009-03-03 | Volterra Semiconductor Corporation | Method for making magnetic components with N-phase coupling, and related inductor structures |
| US7965165B2 (en) | 2002-12-13 | 2011-06-21 | Volterra Semiconductor Corporation | Method for making magnetic components with M-phase coupling, and related inductor structures |
| US8102233B2 (en) | 2009-08-10 | 2012-01-24 | Volterra Semiconductor Corporation | Coupled inductor with improved leakage inductance control |
| WO2009114872A1 (en) * | 2008-03-14 | 2009-09-17 | Volterra Semiconductor Corporation | Magnetic components with m-phase coupling, and related inductor structures |
| US9019063B2 (en) | 2009-08-10 | 2015-04-28 | Volterra Semiconductor Corporation | Coupled inductor with improved leakage inductance control |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952812A (en) * | 1982-09-20 | 1984-03-27 | Matsushita Electric Ind Co Ltd | Fly-back transformer |
| JPS59168608A (en) * | 1983-03-14 | 1984-09-22 | Murata Mfg Co Ltd | Manufacture of fly-back transformer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2927182C2 (en) * | 1979-07-05 | 1982-09-02 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for producing a transformer, in particular a line transformer for a television receiver |
| DE3040368A1 (en) * | 1980-10-25 | 1982-05-27 | Vogt Gmbh & Co Kg, 8391 Erlau | Ferromagnetic core with filled air gap - uses lower permeability compacted iron powder in gaps of ferromagnetic cores |
| FR2500679A3 (en) * | 1981-02-20 | 1982-08-27 | Orega Cifte | Transformer mfg. method for line scan circuit of TV receiver - has gap of magnetic core adjusted by use of predetermined amount of hardening glue and coil impedance measurement |
| DE3402278A1 (en) * | 1984-01-24 | 1985-08-01 | Vogt Gmbh & Co Kg, 8391 Erlau | Trimmable E-core for inductors |
-
1985
- 1985-12-04 FR FR8517948A patent/FR2591024B1/en not_active Expired
-
1986
- 1986-12-02 JP JP50637886A patent/JPS63502149A/en active Pending
- 1986-12-02 EP EP86402674A patent/EP0225830B1/en not_active Expired - Lifetime
- 1986-12-02 WO PCT/FR1986/000412 patent/WO1987003736A1/en unknown
- 1986-12-02 ES ES86402674T patent/ES2039358T3/en not_active Expired - Lifetime
- 1986-12-02 DE DE19863688181 patent/DE3688181T2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952812A (en) * | 1982-09-20 | 1984-03-27 | Matsushita Electric Ind Co Ltd | Fly-back transformer |
| JPS59168608A (en) * | 1983-03-14 | 1984-09-22 | Murata Mfg Co Ltd | Manufacture of fly-back transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009064990A (en) * | 2007-09-07 | 2009-03-26 | Sht Corp Ltd | Coil unit |
| CN105719825A (en) * | 2016-01-22 | 2016-06-29 | 深圳顺络电子股份有限公司 | Inductor and fabrication method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1987003736A1 (en) | 1987-06-18 |
| DE3688181D1 (en) | 1993-05-06 |
| FR2591024B1 (en) | 1988-01-08 |
| DE3688181T2 (en) | 1993-07-08 |
| ES2039358T3 (en) | 1993-10-01 |
| EP0225830B1 (en) | 1993-03-31 |
| FR2591024A1 (en) | 1987-06-05 |
| EP0225830A1 (en) | 1987-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63502149A (en) | A magnetic circuit with a small leakage magnetic field, mainly used in high-voltage transformers to supply power to cathode ray tubes. | |
| US4473811A (en) | Single bobbin transformer having multiple delink windings and method of making same | |
| TW392181B (en) | Inductive component and inductive component assembly | |
| JPH0799727B2 (en) | Electromagnetic device and electromagnetic core structure | |
| US7804390B2 (en) | Transformer for power supply | |
| US3238484A (en) | D-cores with associated windings for producing high q | |
| US20060006974A1 (en) | [transformer module] | |
| JPH1116751A (en) | Transformer | |
| JP2000269039A (en) | Low-height type surface mounting coil component | |
| JP2010212271A (en) | Low-profile inductor | |
| JPS59103316A (en) | Component part for electric coil winding | |
| JPH11340060A (en) | Inverter transformer | |
| JPH10135044A (en) | Inductance element | |
| JP2002025836A (en) | Long, narrow, and thin inverter transformer | |
| CN219832394U (en) | Low-loss high-DC bias magnetic core | |
| JPH075617Y2 (en) | Electromagnetic device | |
| US20240161965A1 (en) | Transmitter with non-closed magnet core | |
| JPH05267064A (en) | Inductor | |
| JP2540856Y2 (en) | Step-up transformer | |
| JPH0344908A (en) | High voltage output small-sized transformer | |
| JPH11273955A (en) | Winding component | |
| JP2003068535A (en) | Inductance part | |
| KR20040102525A (en) | Super-thin inductor and super-thin inductor making method using the same | |
| JPH10256060A (en) | High-frequency transformer for discharge lamp | |
| JPH0451448Y2 (en) |