JPH072000B2 - Magnet generator for internal combustion engine ignition device - Google Patents
Magnet generator for internal combustion engine ignition deviceInfo
- Publication number
- JPH072000B2 JPH072000B2 JP59163098A JP16309884A JPH072000B2 JP H072000 B2 JPH072000 B2 JP H072000B2 JP 59163098 A JP59163098 A JP 59163098A JP 16309884 A JP16309884 A JP 16309884A JP H072000 B2 JPH072000 B2 JP H072000B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- poles
- ignition
- coil
- combustion engine
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
- F02P1/08—Layout of circuits
- F02P1/086—Layout of circuits for generating sparks by discharging a capacitor into a coil circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/48—Generators with two or more outputs
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は内燃機関用コンデンサ放電式点火装置の点火電
極として用いられる磁石発電機に関する。Description: TECHNICAL FIELD The present invention relates to a magnet generator used as an ignition electrode of a capacitor discharge ignition device for an internal combustion engine.
（従来の技術） 従来この種の磁石発電機としては、コアの巻線部の表面
に0.6〜1.0mmの絶縁層（ボビン）を設け、その上にコン
デンサ充電コイルを巻線するのが一般的であった。（例
えば、日本電装公開技報、整理番号24-020、1981年10月
20日発行）。(Prior Art) Conventionally, in this type of magnet generator, it is general to provide an insulation layer (bobbin) of 0.6 to 1.0 mm on the surface of the winding part of the core, and to wind the capacitor charging coil on it. Met. (For example, Nippon Denso Public Technical Report, reference number 24-020, October 1981.
Issued on the 20th).
（発明が解決すべき問題点） ところが、上述した従来のものでは、内燃機関の回転数
の上昇に伴って、コンデンサ充電コイルのインピーダン
スが、そのインダクタンスの影響により増大し、中速回
転以上でのコンデンサ充電コイル発生電圧が低下し、コ
ンデンサ充電電圧が低下するという問題があった。(Problems to be solved by the invention) However, in the above-described conventional one, the impedance of the capacitor charging coil increases due to the influence of the inductance thereof as the number of revolutions of the internal combustion engine increases, so There is a problem that the voltage generated in the capacitor charging coil is lowered and the capacitor charging voltage is lowered.
そのため従来、磁石の磁力を強くしたり、コアの積厚を
増加したりして磁石発電機の出力を増大させたり、イン
ダクタンスの小さい高速用コンデンサ充電コイルを追加
したりして、中速回転以上でのコンデンサの充電電圧の
低下を補うようにしていたが、コストアップとなるばか
りでなく、体格も大きくなるという問題がある。Therefore, conventionally, by increasing the magnetic force of the magnet, increasing the laminated thickness of the core to increase the output of the magnet generator, and adding a high-speed capacitor charging coil with small inductance, it is possible to However, there is a problem that not only the cost increases but also the size increases.
（問題点を解決するための手段） そのため本発明は、 円周上の所定範囲内に所定間隔毎に設けられ、各々に出
力コイル（５）が巻線された複数の突極（3b〜3k）と、
前記突極と同一円周上の残りの範囲に、前記突極の数極
分の範囲をもって設けられ、コンデンサ充電コイル
（４）が巻線された点火用突極（3a）とを備える固定子
と、 前記突極および前記点火用突極と対向して回転移動する
複数の磁極を形成し、該複数の磁極を、所定間隔毎に交
互に異なる極性（2f〜2l）に表れるように所定範囲にわ
たり配置するとともに、残りの範囲に、前記交互に表れ
る磁極の数個分に相当して連続して同一極性（2a〜2e）
が表れるように配置した回転子とを備え、 前記コンデンサ充電コイルが巻線された前記点火用突極
の巻線部に、磁束方向と直交する断面積が、磁性体部
（3a1、3a2、3a3）より大きい非磁性体部（6a、6b）を設
けてなる内燃機関点火装置用磁石発電機という技術的手
段を採用する。(Means for Solving Problems) Therefore, according to the present invention, a plurality of salient poles (3b to 3k) are provided at predetermined intervals within a predetermined range on the circumference, and each has an output coil (5) wound therein. )When,
A stator provided with an ignition salient pole (3a) provided with a range of several salient poles in the remaining range on the same circumference as the salient pole, and winding a capacitor charging coil (4). And a plurality of magnetic poles that rotate in opposition to the salient poles and the ignition salient poles are formed, and the plurality of magnetic poles are arranged in a predetermined range so as to appear in different polarities (2f to 2l) alternately at predetermined intervals. And the same polarity (2a to 2e) continuously in the remaining range corresponding to several magnetic poles that appear alternately.
And a rotor arranged so that the capacitor charging coil is wound, the winding portion of the ignition salient pole has a cross-sectional area orthogonal to the magnetic flux direction, and the magnetic body portions (3a 1 , 3a 2). , 3a 3 ) of the non-magnetic material (6a, 6b) which is larger than the magnetic material for the internal combustion engine ignition device.
なお、括弧内の符号は後述する実施例の対応部分の符号
である。The reference numerals in parentheses are the reference numerals of corresponding parts in the embodiments described later.
（作用） 以上に述べた本発明による作用を説明する。(Operation) The operation according to the present invention described above will be described.
本発明では、円周上の所定範囲内に所定間隔毎に複数の
突極が設けられ、円周上の残りの範囲に、数個の突極に
相当する範囲にわたる点火用突極が設けられるため、多
くの磁束を点火用突極に集めることができる。According to the present invention, a plurality of salient poles are provided at predetermined intervals within a predetermined range on the circumference, and ignition salient poles are provided in the remaining range on the circumference, which range is equivalent to several salient poles. Therefore, a large amount of magnetic flux can be collected in the salient pole for ignition.
さらに、巻線部に磁束方向と直交する断面積がコアの磁
性体部より大きい非磁性体部を設けているため、コンデ
ンサ充電コイルのインダクタンスによるインピーダンス
（リアクタンス分）を小さくすることができる。Further, since the non-magnetic material portion whose cross-sectional area orthogonal to the magnetic flux direction is larger than the magnetic material portion of the core is provided in the winding portion, the impedance (reactance) due to the inductance of the capacitor charging coil can be reduced.
（実施例） 以下本発明を図に示す実施例について説明する。(Examples) Hereinafter, examples of the present invention shown in the drawings will be described.
第１図は本発明の第１実施例を示す多極磁石発電機の部
分断面の平面図で、１は磁性体よりなる椀状のロータ、
２は一部分2a〜2eでは同一極性（Ｎ極）が２極以上連続
するように変則着磁され、残りの部分2f〜2lがＮ、Ｓ交
互に着磁された12極のリング状磁石でロータ１の内周に
固定してある。これらロータ１とリング状磁石２とによ
り回転子が構成されている。３は磁気回路を形成する星
型コアで外径方向に略等間隔で突出する10個の突極3b〜
3kと１つの点火用突極3aとを有する。４は点火用突極3a
に巻線したコンデンサ充電コイル、５はランプやバッテ
リ充電等に使用する出力コイルで、残りの10個の各突極
3b〜3kに巻線され互いに直接接続されている。FIG. 1 is a partial cross-sectional plan view of a multi-pole magnet generator showing a first embodiment of the present invention, in which 1 is a bowl-shaped rotor made of a magnetic material,
In part 2, 2a to 2e are magnetized irregularly so that two or more poles of the same polarity (N poles) continue, and the remaining parts 2f to 2l are ring magnets of 12 poles magnetized in alternating N and S rotors. It is fixed to the inner circumference of 1. The rotor is composed of the rotor 1 and the ring-shaped magnet 2. 3 is a star-shaped core that forms a magnetic circuit, and has 10 salient poles 3b that project in the outer diameter direction at substantially equal intervals.
3k and one ignition salient pole 3a. 4 is an ignition salient pole 3a
Capacitor charging coil wound around 5 is an output coil used for charging a lamp or battery, and the remaining 10 salient poles
Windings 3b-3k are connected directly to each other.
そして点火用突極3aのコンデンサ充電コイル用巻線部
は、間隔を置いて形成された磁性体部としての２つの磁
路部3a1,3a2と、この磁路部3a1,3a2間に設けた合成樹脂
製の非磁性体部6aとを有しており、さらに、点火用突極
3aの巻線部周囲には、他の各突極3b〜3kの巻線部周囲と
一体に絶縁層（ボビン）が形成されている。ここで、非
磁性体部6aと絶縁層６とは形成樹脂や粉体樹脂で一体的
に成形するのが好適である。さらに、本実施例において
は絶縁層６の厚さは0.6〜1.0mmであり、２つの磁路部3a
1,3a2の各幅は、約2mmで合わせて約4mmであり、さら
に、非磁性体部6aの幅Ａは約8mmとなしてある。これら
コア3,コイル4,5,非磁性体部6a,絶縁層６により固定子
が構成されている。The winding wire for the capacitor charging coil of the salient pole 3a for ignition is provided between two magnetic path portions 3a 1 and 3a 2 as magnetic portions formed at intervals and between the magnetic path portions 3a 1 and 3a 2. And a non-magnetic material portion 6a made of synthetic resin provided on the
An insulating layer (bobbin) is formed around the winding part of 3a integrally with the surroundings of the winding parts of the other salient poles 3b to 3k. Here, it is preferable that the non-magnetic material portion 6a and the insulating layer 6 are integrally molded with a forming resin or powder resin. Further, in this embodiment, the thickness of the insulating layer 6 is 0.6 to 1.0 mm, and the two magnetic path portions 3a are
The width of each of 1 and 3a 2 is about 2 mm, which is about 4 mm in total, and the width A of the non-magnetic body portion 6 a is about 8 mm. The core 3, the coils 4, 5, the non-magnetic material portion 6a, and the insulating layer 6 constitute a stator.
そして、ロータ１および磁石２は図示されていない内燃
機関のクランクシャフトに連結され回転駆動される。ま
た、コア３は穴31を介して図示されていない内燃機関ク
ランクケースにネジ締め等で固定されている。ここで、
磁石２は半径方向に着磁された円弧状の12個の等間隔
（磁極１極当りの角度θｐが30°）の磁石部分2a〜2lを
円周方向につらねてリング状になしたものであり、その
うち５個の磁石部分2a〜2eの内周面が連続してＮ極に着
磁されており、残りの７個の磁石部分2f〜2lの内周面は
S,N極に交互に着磁されている。この磁石２は１つのリ
ング状の磁石によって形成することもできるが、複数個
に分割された円弧状の磁石をリング状につらねて構成す
るようにしてもよい。The rotor 1 and the magnet 2 are connected to a crankshaft of an internal combustion engine (not shown) and driven to rotate. The core 3 is fixed to the internal combustion engine crankcase (not shown) through a hole 31 by screwing or the like. here,
The magnet 2 is a ring-shaped magnet part 2a to 2l that is magnetized in the radial direction and has 12 equally spaced arcs (angle θp per magnetic pole is 30 °). The inner peripheral surfaces of the five magnet portions 2a to 2e are continuously magnetized to the N pole, and the inner peripheral surfaces of the remaining seven magnet portions 2f to 2l are
The S and N poles are magnetized alternately. The magnet 2 can be formed by one ring-shaped magnet, but may be formed by forming a plurality of arc-shaped magnets into a ring shape.
また、コア３の各突極3a〜3kのうち、等間隔で設けられ
た10個の突極3b〜3kは磁石２の磁極角度ピッチと同じ30
°の角度間隔で設けられており、これら各突極3d〜3k先
端の磁石２の磁極と対向する磁極片の角度は、磁石２の
磁極１極当りの角度θｐ＝30°より小さい18°程度の大
きさにしてある。また、点火用突極3aは他の各突極3b〜
3kの２極分で１つとなるようにその両隣りの突極3b,3k
の中間部分に、これら両突極3b,3kに対し45°の角度ピ
ッチで形成されており、この点火用突極3a先端の磁石２
の磁極と対向する磁極片の角度θｃは、磁石２の磁極１
極当りの角度θｐ＝30°より大きい53°程度の大きさに
してある。Further, among the salient poles 3a to 3k of the core 3, ten salient poles 3b to 3k provided at equal intervals have the same magnetic pole angle pitch of the magnet 30.
The angle of the magnetic pole pieces facing the magnetic poles of the magnet 2 at the tips of the salient poles 3d to 3k is 18 °, which is smaller than the angle θp = 30 ° per magnetic pole of the magnet 2. It is the size of. Further, the salient pole 3a for ignition is connected to the other salient poles 3b to
The salient poles 3b and 3k on both sides of the pole so that the two poles of 3k become one
The salient poles 3b and 3k are formed at an angle pitch of 45 ° with respect to the salient poles 3b and 3k.
The angle θc of the pole piece facing the magnetic pole of
The angle per pole θp is about 53 °, which is larger than 30 °.
また、第１図中の矢印はロータ１の回転方向を示す。The arrow in FIG. 1 indicates the rotation direction of the rotor 1.
第２図は上記実施例における各部の波形を示し、（Ａ）
はコンデンサ充電コイル４に鎖交する磁束波形，（Ｂ）
はこのコイル４の発生電圧，（Ｃ）は後述する点火用コ
ンデンサの充電電圧，（Ｄ）は出力コイル５の１ポール
分（突極3kに対応する部分）に鎖交する磁束波形，
（Ｅ）はこのコイル５の１ポール部（突極3kに対応する
部分）の発生電圧を各々示す。FIG. 2 shows the waveform of each part in the above embodiment, (A)
Is the magnetic flux waveform interlinking with the capacitor charging coil 4, (B)
Is a voltage generated by the coil 4, (C) is a charging voltage of an ignition capacitor described later, (D) is a magnetic flux waveform interlinking one pole of the output coil 5 (a portion corresponding to the salient pole 3k),
(E) shows the generated voltage of one pole portion of the coil 5 (the portion corresponding to the salient pole 3k).
第３図は電気回路図で、10,13,15は整流用ダイオード,1
1は点火用コンデンサ,12は点火コイルで、12aはその１
次コイル,12bはその２次コイル,14は抵抗,16は点火用サ
イリスタ、17は点火プラグを各々示す。Fig. 3 is an electric circuit diagram, and 10, 13, 15 are rectifying diodes, 1
1 is an ignition capacitor, 12 is an ignition coil, and 12a is 1
The secondary coil, 12b is its secondary coil, 14 is a resistor, 16 is an ignition thyristor, and 17 is an ignition plug.
第４図は、ロータの回転数に対するコンデンサ電圧の関
係を示し、（ａ）は非磁性体部6aが8mm時の特性を示
し、（ｂ）は非磁性体部6aが0mmでコンデンサ充電コイ
ル４の巻回数だけを変更して500rpmのコンデンサ電圧を
（ａ）特性と同じにした時の特性（従来例），（ｃ）は
巻回数だけを変更して10000rpmのコンデンサ電圧を
（ａ）を特性と同じにした時の特性を各々示す。また、
第５図は非磁性体部6aの幅Ａとコンデンサ電圧との関係
を示し、（ａ）は10000rpm,（ｂ）は500rpm時のコンデ
ンサ電圧を各々示す。FIG. 4 shows the relationship of the capacitor voltage with respect to the rotation speed of the rotor. (A) shows the characteristics when the non-magnetic material portion 6a is 8 mm, and (b) shows the non-magnetic material portion 6a with 0 mm, and the capacitor charging coil 4 Characteristics when changing the number of windings to make the capacitor voltage of 500 rpm the same as (a) characteristics (conventional example), (c) shows the characteristics of a capacitor voltage of 10000 rpm as (a) The characteristics when they are the same are shown below. Also,
FIG. 5 shows the relationship between the width A of the non-magnetic member portion 6a and the capacitor voltage. (A) shows the capacitor voltage at 10000 rpm, and (b) shows the capacitor voltage at 500 rpm.
なお、本実施例の磁石２の着磁は連続する同一極数が５
極の場合を示してあるが、この極数にすればコイル４に
発生する電圧の第２図（Ｂ）図示の正方向電圧B1と負方
向電圧B2との間に適当な休止部ができるため、正方向電
圧B1の電機子反作用によって負方向電圧B2が遅らされる
ことが少なくなり、従って、この負方向電圧B2によって
決定される点火時期パターンが漸進進角になるという優
れた効果がある。It should be noted that the magnet 2 of this embodiment is magnetized such that the number of consecutive same poles is five.
The case of poles is shown, but if this number of poles is used, an appropriate pause portion is provided between the positive direction voltage B 1 and the negative direction voltage B 2 shown in FIG. 2 (B) of the voltage generated in the coil 4. that since it, positive voltage B negative voltage B 2 is it is less that delayed by armature reaction of 1, therefore, the ignition timing pattern determined by the negative voltage B 2 becomes progressively advance It has an excellent effect.
上記構成において、ロータ１が回転すると、コンデンサ
充電コイル４の突極3aは出力コイル５の各突極3b〜3kの
ほぼ２極分が１極となるように設定してあり、かつその
磁極片が磁石２の磁極１極当りの角度より広くしてある
ため、コイル４には、磁石２の同一極性が２極以上連続
する磁極に対向した時だけ有効磁束が鎖交し、N,S交互
に極性変化がある部分ではこれら隣接磁極同士が幅の広
い磁極片で短絡されるので、有効磁束にはならず、従っ
て、第２図（Ａ）に示す磁束変化が点火用突極3aに起こ
り、第２図（Ｂ）に示す電圧がコンデンサ充電コイル４
に発生する。ここで、コイル４に第２図（Ｂ）のB1で示
す正方向電圧が発生すると、第３図のダイオード10→コ
ンデンサ11→点火コイル12の１次コイル12a→ダイオー
ド13→アース→コイル４の回路で点火用コンデンサ11は
第２図（Ｃ）のように充電される。更に、ロータが回転
してコイル４に第２図（Ｂ）のB2で示す負方向電圧が発
生すると、アース→抵抗14→ダイオード15→コイル４の
回路で電流が流れ、抵抗14の端子間電圧、即ち、点火用
サイリスタ16のゲート・カソード間電圧が所定値になる
とサイリスタ16が導通する。このようにしてサイリスタ
16が導通すると、コンデンサ11に充電されている電荷が
サイリスタ16→点火コイル12の１次コイル12a→コンデ
ンサ11の回路で急激に放電され、点火コイル12の２次コ
イル12bに高電圧が発生し、点火プラグ17に点火する。
以上の動作を繰り返してロータ１の１回転つき１発火の
無接点点火装置を得ることができる。In the above configuration, when the rotor 1 rotates, the salient poles 3a of the capacitor charging coil 4 are set such that approximately two salient poles 3b to 3k of the output coil 5 become one pole, and the pole pieces thereof are arranged. Is wider than the angle per pole of the magnet 2, so that the effective magnetic flux is linked to the coil 4 only when the poles of the same polarity of the magnet 2 face two or more consecutive poles, and N and S alternate. In the part where the polarity changes, the adjacent magnetic poles are short-circuited by the wide pole piece, so that it does not become an effective magnetic flux, and therefore the magnetic flux change shown in FIG. 2 (A) occurs in the ignition salient pole 3a. , The voltage shown in FIG.
Occurs in. Here, when a forward voltage indicated by B 1 in FIG. 2B is generated in the coil 4, the diode 10 in FIG. 3 → the capacitor 11 → the primary coil 12a of the ignition coil 12 → the diode 13 → ground → the coil 4 In this circuit, the ignition capacitor 11 is charged as shown in FIG. Furthermore, when the rotor rotates and a negative voltage is generated in the coil 4 as indicated by B 2 in FIG. 2 (B), a current flows through the circuit of ground → resistor 14 → diode 15 → coil 4 and between the terminals of the resistor 14. When the voltage, that is, the gate-cathode voltage of the ignition thyristor 16 reaches a predetermined value, the thyristor 16 becomes conductive. In this way the thyristor
When 16 becomes conductive, the electric charge stored in the capacitor 11 is rapidly discharged in the circuit of the thyristor 16 → the primary coil 12a of the ignition coil 12 → the capacitor 11 and a high voltage is generated in the secondary coil 12b of the ignition coil 12. , The ignition plug 17 is ignited.
By repeating the above operation, it is possible to obtain a non-contact ignition device with one rotation and one ignition of the rotor 1.
ここで、従来の特公昭49-46163号公報に示されるごとき
のものでは、１つ飛びの２つの突起に分割巻きしたコイ
ルに発生する互いに逆極性の電圧でもって相殺して不要
部分における出力電圧を零にするようにしているので、
このコイルをコンデンサ充電コイルに使用する場合、高
速回転域でコイルの両分割部分に数KVの大きな無負荷電
圧が発生してコイルが絶縁破壊する恐れがあるが、本実
施例のごとく隣接する異極性の磁極間を点火用突極3aの
磁極片で短絡して不要な部分における、出力電圧の発生
を阻止することにより、コンデンサ充電コイルが無負荷
電圧により絶縁破壊することはない。Here, in the case of the conventional Japanese Patent Publication No. 49-46163, the output voltage in the unnecessary portion is canceled by the voltages of opposite polarities generated in the coil divided and wound into two protrusions jumping one by one. Is set to zero, so
When this coil is used as a capacitor charging coil, a large no-load voltage of several KV may occur in both split parts of the coil in the high-speed rotation range, resulting in dielectric breakdown of the coil. By preventing the generation of the output voltage in the unnecessary portion by short-circuiting between the magnetic poles of the polarity by the magnetic pole piece of the salient pole 3a for ignition, the capacitor charging coil will not be dielectrically broken down by the no-load voltage.
また、点火用突極3a以外の他の突極3b〜3kの各１つの磁
極片は磁石２の磁極角度θｐより小さくしてあるため、
ロータ１の回転に伴なって、磁石の異極性の磁極と対向
するごとに磁束の流れる方向が切換わる第２図（Ｄ）に
示すごとき磁束が30°の位相差でもって順次流れ、これ
ら各突極3b〜3jに巻線された出力コイル５の各コイル部
分に第２図（Ｅ）に示すごとき不連続の出力電圧が30°
の位相差でもって順次発生し、従って出力コイル５の端
子間にはこれらの電圧が加算された波高値の高い連続的
な出力電圧が発生し、ランプやバッテリ充電等に充分な
出力を供給することができる。Further, since each of the magnetic pole pieces of the salient poles 3b to 3k other than the ignition salient pole 3a is smaller than the magnetic pole angle θp of the magnet 2,
As the rotor 1 rotates, the magnetic flux flows sequentially with a magnetic pole of different polarity facing each other as shown in FIG. 2 (D). The magnetic flux sequentially flows with a phase difference of 30 °. A discontinuous output voltage of 30 ° as shown in Fig. 2 (E) is applied to each coil portion of the output coil 5 wound on the salient poles 3b to 3j.
Are sequentially generated due to the phase difference, and a continuous output voltage having a high peak value, which is a sum of these voltages, is generated between the terminals of the output coil 5, and a sufficient output is supplied for a lamp, battery charging, etc. be able to.
また、本実施例のコンデンサ電圧は、コンデンサ充電コ
イル４の巻線部に比較的大きな非磁性体部6aが設けてあ
るため、コンデンサ充電コイル４のインダクタンスによ
るインピーダンス（リアタンス分）が小さく出来るた
め、従来の様にコアの表面に0.6〜1mmの絶縁層（非磁性
体）のみ設け、その上に巻線を行ったコンデンサ充電コ
イルとコンデンサ電圧を比較すると、巻回数だけを変更
して低速回転の500rpmの時のコンデンサ電圧を同じにし
た時は、第４図（ａ）と（ｂ）の様に、本実施例は中速
回転数以上で約10V高く出来、また、高速回転の10000rp
mのときのコンデンサ電圧を同じにした時は、第４図
（ａ）と（ｂ）の様に本実施例は低速回転以下で７〜18
V高く出来る。Further, in the capacitor voltage of the present embodiment, the relatively large non-magnetic material portion 6a is provided on the winding portion of the capacitor charging coil 4, so that the impedance (reatance amount) due to the inductance of the capacitor charging coil 4 can be reduced. As in the past, only the insulation layer (non-magnetic material) of 0.6 to 1 mm was provided on the surface of the core, and the capacitor charging coil wound on it was compared with the capacitor voltage. When the capacitor voltage at 500 rpm is the same, as shown in FIGS. 4 (a) and 4 (b), this embodiment can increase the speed by about 10 V at a medium speed or higher, and at a high speed of 10,000 rpm.
When the capacitor voltage at m is the same, this embodiment is 7 to 18 at low speed rotation or less as shown in FIGS. 4 (a) and 4 (b).
V can be increased.
以上の様に従来コンデンサ電圧の改善には磁石のパワー
アップやコア積厚増加やインダクタンスの小さいコイル
を追加する必要があるが、本実施例では、コイル巻線部
に非磁性体部6aを設け、コイルのインダクタンスによる
インピーダンス（リアクタンス分）を小さくすることに
より、中速回転数以上でのコンデンサ電圧の低下を小さ
くして磁石のパワーアップやコア積厚アップ等を行わな
くともコンデンサ電圧の改善が可能である。As described above, in order to improve the conventional capacitor voltage, it is necessary to increase the power of the magnet, increase the core product thickness, and add a coil with a small inductance, but in this embodiment, the non-magnetic body portion 6a is provided in the coil winding portion. By reducing the impedance (reactance) due to the inductance of the coil, it is possible to improve the capacitor voltage without increasing the power of the magnet or increasing the thickness of the core by reducing the decrease in the capacitor voltage at medium speeds and above. It is possible.
さらに、本実施例の様に非磁性体部6aをコア３の取付面
と略平行な方向だけに設ければ、コンデンサ充電コイル
４の軸方向寸法の増加はなく、磁石発電機の体格をアッ
プする必要もない。Further, if the non-magnetic material portion 6a is provided only in the direction substantially parallel to the mounting surface of the core 3 as in this embodiment, the axial dimension of the capacitor charging coil 4 does not increase, and the physique of the magnet generator is improved. You don't even have to.
また、本実施例の様に２つの磁路部3a1,3a2間に非磁性
体部6aを設けるようにすれば、点火用突極3aの機械的強
度として充分大きなものが得られる。Further, if the non-magnetic material portion 6a is provided between the two magnetic path portions 3a 1 and 3a 2 as in this embodiment, the ignition salient pole 3a has a sufficiently high mechanical strength.
なお、上述した第１実施例においては、点火用突極3aの
２つの磁路部3a1,3a2の間を合成樹脂製の非磁性体部6a
により埋めたが、空気（空間）により非磁性体部6aを構
成するようにしてもよく、２つの磁路部3a1,3a2の内側
の非磁性体部6aと外側の絶縁層６との量の組せは、適宜
変えてもよい（例えば、非磁性体部6aの幅6mm,絶縁層６
の厚さ2mm等）。In the first embodiment described above, the non-magnetic material portion 6a made of synthetic resin is provided between the two magnetic path portions 3a 1 and 3a 2 of the salient pole 3a for ignition.
However, the non-magnetic material portion 6a may be constituted by air (space), and the non-magnetic material portion 6a inside the two magnetic path portions 3a 1 and 3a 2 and the insulating layer 6 outside may be formed. The combination of amounts may be changed as appropriate (for example, the width of the nonmagnetic portion 6a is 6 mm, the insulating layer 6 is
Thickness 2 mm etc.).
第６図は本発明の第２実施例を示すもので、点火用突極
3aの１つの磁路部3a3の両側に、絶縁層６と一体の非磁
性体部6bを設けたものである。FIG. 6 shows a second embodiment of the present invention, in which the salient pole for ignition is used.
A non-magnetic material portion 6b integral with the insulating layer 6 is provided on both sides of one magnetic path portion 3a 3 of 3a.
なお、上述した各実施例においては、コア３の取付面と
ほぼ平行な方向（水平方向）だけに主に非磁性体部6a,6
bを設けたが、コア３の取付面とほぼ直角方向（垂直方
向）だけ、あるいは、水平方向と直角方向との双方に、
非磁性体部6a,6bを設けるようにしてもよい。In each of the above-described embodiments, the non-magnetic material portions 6a, 6 are mainly formed only in the direction (horizontal direction) substantially parallel to the mounting surface of the core 3.
Although b is provided, only in a direction substantially perpendicular to the mounting surface of the core 3 (vertical direction), or in both a horizontal direction and a perpendicular direction,
You may make it provide the nonmagnetic material part 6a, 6b.
（発明の効果） 以上述べたように本発明においては、円周上の一部分に
出力コイル用の突極の数個分に相当するコンデンサ充電
コイル用の点火用突極を設け、多くの磁束を点火用突極
に集めることができ、さらに、巻線部に設けられたコア
の磁性体部より断面積が大きい非磁性体部によって、コ
ンデンサ充電コイルのインダクタンスによるインピーダ
ンス（リアクタンス分）を小さくすることができるた
め、これら２つの作用効果が相まって、磁石発電機の出
力を増大させたり、インダクタンスの小さい高速用コン
デンサ充電コイルを追加することなく、中高速以上での
コンデンサの充電電圧の低下を防止することができると
いう優れた効果がある。(Effects of the Invention) As described above, in the present invention, ignition salient poles for the capacitor charging coil corresponding to several salient poles for the output coil are provided in a part of the circumference, and many magnetic fluxes are generated. The non-magnetic material part that can be collected in the ignition salient pole and has a larger cross-sectional area than the magnetic material part of the core provided in the winding part reduces the impedance (reactance) due to the inductance of the capacitor charging coil. Therefore, these two effects are combined to prevent the output of the magnet generator from increasing and prevent the charging voltage of the capacitor from decreasing at medium and high speeds without adding a high-speed capacitor charging coil with small inductance. It has the excellent effect of being able to.
第１図は本発明発電機の第１実施例を示す一部断面平面
図、第２図は上記実施例の作動説明に供する各部波形
図、第３図は上記発電機を適用した点火装置の一実施例
を示す電気回路図、第４図および第５図は上記第１実施
例におけるコンデンサ電圧特性図、第６図は本発明発電
機の第２実施例を示す一部断面平面図である。 １……ロータ、２……磁石、３……コア、3a1〜3a3……
磁路部、４……コンデンサ充電コイル、6a,6b……非磁
性体部。FIG. 1 is a partial cross-sectional plan view showing a first embodiment of a generator of the present invention, FIG. 2 is a waveform diagram of each part used for explaining the operation of the above-mentioned embodiment, and FIG. 3 is an ignition device to which the above-mentioned generator is applied. An electric circuit diagram showing an embodiment, FIGS. 4 and 5 are capacitor voltage characteristic diagrams in the first embodiment, and FIG. 6 is a partial sectional plan view showing a second embodiment of the generator of the present invention. . 1 ...... rotor, 2 ...... magnets, 3 ...... core, 3a 1 to 3 A 3 ......
Magnetic path part, 4 ... Capacitor charging coil, 6a, 6b ... Non-magnetic part.
Claims (4)
れ、各々に出力コイル（５）が巻線された複数の突極
（3b〜3k）と、前記突極と同一円周上の残りの範囲に、
前記突極の数極分の範囲をもって設けられ、コンデンサ
充電コイル（４）が巻線された点火用突極（3a）とを備
える固定子と、 前記突極および前記点火用突極と対向して回転移動する
複数の磁極を形成し、該複数の磁極を、所定間隔毎に交
互に異なる極性（2f〜2l）が表れるように所定範囲にわ
たり配置するとともに、残りの範囲に、前記交互に表れ
る磁極の数個分に相当して連続して同一極性（2a〜2e）
が表れるように配置した回転子とを備え、 前記コンデンサ充電コイルが巻線された前記点火用突極
の巻線部に、磁束方向と直交する断面積が、磁性体部
（3a1、3a2、3a3）より大きい非磁性体部（6a、6b）を設
けてなる内燃機関点火装置用磁石発電機。1. A plurality of salient poles (3b to 3k), which are provided in a predetermined range on a circumference at predetermined intervals and each of which has an output coil (5) wound thereon, and the same circumference as the salient pole. In the remaining range above,
A stator provided with an ignition salient pole (3a) around which a capacitor charging coil (4) is wound, the stator being provided within a range of several salient poles, and facing the salient pole and the ignition salient pole. Forming a plurality of magnetic poles that rotate and move, and arranging the plurality of magnetic poles over a predetermined range so that different polarities (2f to 2l) alternately appear at predetermined intervals, and alternately appear in the remaining range. Continuously same polarity (2a to 2e) corresponding to several magnetic poles
And a rotor arranged so that the capacitor charging coil is wound, the winding portion of the ignition salient pole has a cross-sectional area orthogonal to the magnetic flux direction, and the magnetic body portions (3a 1 , 3a 2). , 3a 3 ) and a non-magnetic material portion (6a, 6b) larger than the magnet generator for an internal combustion engine ignition device.
な方向だけに設けてなる特許請求の範囲第１項記載の内
燃機関点火装置用磁石発電機。2. The magnet generator for an internal combustion engine ignition device according to claim 1, wherein the non-magnetic member is provided only in a direction parallel to the mounting surface of the core.
の磁路部（3a1、3a2）の内側に、これらに挟まれて設け
られてなる特許請求の範囲第１項または第２項記載の内
燃機関点火装置用磁石発電機。3. The non-magnetic material portion is provided inside two magnetic path portions (3a 1 , 3a 2 ) extending in the magnetic flux direction so as to be sandwiched between them. A magnet generator for an internal combustion engine ignition device according to claim 2.
部（3a3）の外側に、これを挟んで設けられてなる特許
請求の範囲第１項または第２項記載の内燃機関点火装置
用磁石発電機。4. The internal combustion engine according to claim 1 or 2, wherein the non-magnetic body portion is provided outside the magnetic path portion (3a 3 ) extending in the magnetic flux direction with the non-magnetic body portion sandwiched therebetween. Magnet generator for ignition device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59163098A JPH072000B2 (en) | 1984-08-01 | 1984-08-01 | Magnet generator for internal combustion engine ignition device |
| US06/680,512 US4636671A (en) | 1983-12-23 | 1984-12-11 | Magneto generator for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59163098A JPH072000B2 (en) | 1984-08-01 | 1984-08-01 | Magnet generator for internal combustion engine ignition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6142253A JPS6142253A (en) | 1986-02-28 |
| JPH072000B2 true JPH072000B2 (en) | 1995-01-11 |
Family
ID=15767138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59163098A Expired - Lifetime JPH072000B2 (en) | 1983-12-23 | 1984-08-01 | Magnet generator for internal combustion engine ignition device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072000B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6210470Y2 (en) * | 1980-12-16 | 1987-03-11 |
-
1984
- 1984-08-01 JP JP59163098A patent/JPH072000B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6142253A (en) | 1986-02-28 |
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| EXPY | Cancellation because of completion of term |