JPS609425Y2 - Generator for controlling the ignition timing of non-contact ignition devices - Google Patents
Generator for controlling the ignition timing of non-contact ignition devicesInfo
- Publication number
- JPS609425Y2 JPS609425Y2 JP1976135543U JP13554376U JPS609425Y2 JP S609425 Y2 JPS609425 Y2 JP S609425Y2 JP 1976135543 U JP1976135543 U JP 1976135543U JP 13554376 U JP13554376 U JP 13554376U JP S609425 Y2 JPS609425 Y2 JP S609425Y2
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- Prior art keywords
- rotor
- ignition timing
- generator
- legs
- waveform
- 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.)
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- Electrical Control Of Ignition Timing (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
【考案の詳細な説明】
本考案は、内燃機関の無接点点火装置において、点火時
期を跳躍的に進角させる制御信号を発生する点火時期制
御用発電機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a generator for controlling ignition timing that generates a control signal for rapidly advancing ignition timing in a non-contact ignition system for an internal combustion engine.
第１図は、無接点点火装置の回路図の一例を示し、この
点火装置は、発電機に内蔵された点火用発電コイル１の
出力でコンデンサ２を充電し、同じく発電機に内蔵され
た信号コイル３の出力で制御整流器４を導通してコンデ
ンサ２の充電電荷を点火コイル５の１次コイル６及び制
御整流器４を介して放電し、点火コイル５の２次コイル
７に高電圧を発生させる、いわゆる容量放電式点火装置
である。FIG. 1 shows an example of a circuit diagram of a non-contact ignition device. This ignition device charges a capacitor 2 with the output of an ignition generating coil 1 built into a generator, and uses a signal built in the generator as well. The output of the coil 3 conducts the control rectifier 4 to discharge the charge in the capacitor 2 through the primary coil 6 of the ignition coil 5 and the control rectifier 4, and generates a high voltage in the secondary coil 7 of the ignition coil 5. This is a so-called capacitive discharge type ignition device.
このように制御整流器４は信号コイル３の出力信号によ
り導通するのであるが、この出力信号が制御整流器４の
トリガーレベルより低いときには導通しない。In this way, the controlled rectifier 4 is made conductive by the output signal of the signal coil 3, but is not made conductive when this output signal is lower than the trigger level of the controlled rectifier 4.
ところで自動２輪車用の内燃機関においては、始動時は
点火時期を遅らせて蹴り返しの防止を図り、始動後は点
火時期を進めて出力を向上させるのが望ましい。By the way, in an internal combustion engine for a two-wheeled motor vehicle, it is desirable to delay the ignition timing to prevent kickback when starting, and to advance the ignition timing after starting to improve output.
このため、従来信号コイル３の出力信号を整形し、第２
図に示すような三つ山の山形波形の信号として制御整流
器４に印加することが知られている。For this reason, the output signal of the conventional signal coil 3 is shaped and the second
It is known that the signal is applied to the control rectifier 4 as a signal having a three-crested mountain waveform as shown in the figure.
すなわち第２図において実線の波形は内燃機関の回転が
比較的低速のとき発生し、高速になるにしたがって点線
の波形のようにしだいに成長増大していくものである。That is, in FIG. 2, the solid line waveform occurs when the rotation speed of the internal combustion engine is relatively low, and as the rotation speed increases, it gradually increases as shown in the dotted line waveform.
Ｌは前記制御整流器１４のトリガーレベルを示す。L indicates the trigger level of the controlled rectifier 14.
而して実線波形においてはａ点でこのトリガーレベルＬ
を越し、点線波形においてはｂ点でトリガーレベルＬを
越す。Therefore, in the solid line waveform, this trigger level L is reached at point a.
, and exceeds the trigger level L at point b in the dotted line waveform.
すなわち点火時期制御信号がトリガーレベルＬを越す時
期をクランク角で比較すると、点線波形の方が実線波形
よりも角度Ｃだけ早い。That is, when comparing the timing at which the ignition timing control signal exceeds the trigger level L in terms of crank angle, the dotted line waveform is earlier than the solid line waveform by an angle C.
したがって角度Ｃだけ進角がなされるものである。Therefore, the angle is advanced by angle C.
しかも、この進角は跳躍的に行なわれ、大進角が可能で
ある。Moreover, this advance angle is performed in a jumping manner, and a large advance angle is possible.
しかるに、従来この山形の進角波形を得ようとすると発
電機の構造あるいは電気回路が複雑になるという欠点が
あった。However, in the past, when attempting to obtain this chevron-shaped advance angle waveform, there was a drawback that the structure of the generator or the electric circuit became complicated.
本考案は、この欠点を除去し、簡単な構成で山形の進角
波形を得ることを目的とするものである。The present invention aims to eliminate this drawback and obtain a chevron-shaped advance angle waveform with a simple configuration.
而して本考案は、内燃機関の出力軸に連動する回転子と
、この回転子に対向する信号コイルとから戊る点火時期
制御用発電機において、回転子に着磁方向の異なる複数
個の磁石を距離を隔てて交互に設は信号コイルを、回転
子の回転方向に沿って２本の脚部を有する略Ｕ字形の磁
芯とその脚部に施した和動的に作用する巻線とから構成
し、この巻線から点火時期制御信号を取り出すようにす
ることにより前記の目的を遠戚するものである。Therefore, the present invention provides a generator for controlling ignition timing, which consists of a rotor that is linked to the output shaft of an internal combustion engine, and a signal coil that faces the rotor. The magnets are arranged alternately at a distance, and the signal coils are arranged in a roughly U-shaped magnetic core with two legs along the direction of rotation of the rotor, and windings that act harmonically on the legs. The above-mentioned object is distantly related to the above-mentioned object by constructing the winding and extracting the ignition timing control signal from the winding.
以下、本考案の一実施例について詳細に説明する。Hereinafter, one embodiment of the present invention will be described in detail.
第３図は、点火時期制御用発電機の平面図であり、第４
図はそのＡ−Ａ断面図である。FIG. 3 is a plan view of the ignition timing control generator;
The figure is a sectional view taken along the line AA.
Ｒは回転子であって、内燃機関のクランク軸、すなわち
出力軸８に連動して回転する。R is a rotor that rotates in conjunction with the crankshaft of the internal combustion engine, that is, the output shaft 8.
９は回転子Ｒの枠体である。9 is a frame of the rotor R.
１０．．１０□、１０３，１０４は磁石（総称するとき
は１磁石１０．という）であって、回転子Ｒの周方向に
間隙１をおいて４個配置されている。10. ．． 10□, 103, and 104 are magnets (collectively referred to as 1 magnet 10.), and four magnets are arranged with a gap 1 in the circumferential direction of the rotor R.
本実施例では磁石の数を４個にしたが、複数個であれば
いくつでもよい。In this embodiment, the number of magnets is four, but any number may be used as long as there is a plurality of magnets.
これらの磁石の配置関係は、互いに隣り合う磁石の着磁
方向が異なるようにする。The arrangement of these magnets is such that adjacent magnets have different magnetization directions.
例えば、磁石１０１はＮＳの着磁がされ磁石１０゜はＳ
Ｎの着磁がされている。For example, magnet 101 is magnetized to NS, and magnet 10° is magnetized to S.
It is magnetized with N.
要は、回転子Ｒの回転時Ｎ極とＳ極とが交互にあられれ
るように配置しておけばよい。The point is that the rotor R should be arranged so that the north pole and the south pole alternate when the rotor R rotates.
なお１１は、鉄板である。Note that 11 is an iron plate.
回転子Ｒは従来の構成と同じであり、従来のものをその
まま流用することができる。The rotor R has the same configuration as the conventional one, and the conventional one can be used as is.
Ｆは基台で、内燃機関のクランクケースＧに取付部１２
で固定されている。F is a base, and a mounting part 12 is attached to the crankcase G of the internal combustion engine.
is fixed.
信号コイル３は、磁芯１４とこの磁芯１４に巻回された
巻線１５とから戊り、ねじ１３によって基台Ｆに固定さ
れる。The signal coil 3 is separated from the magnetic core 14 and the winding 15 wound around the magnetic core 14, and is fixed to the base F by screws 13.
磁芯１４は略Ｕ字状に形成され、その２本の脚部１４□
、１４゜が前記磁石１０に対向するとともに、それぞれ
の脚部１４．．１４゜が前記回転子Ｒの回転方向に並ぶ
ように置かれている。The magnetic core 14 is formed into a substantially U-shape, and its two legs 14□
, 14° are opposed to the magnet 10, and each leg 14. ．． 14 degrees are aligned with the rotational direction of the rotor R.
すなわち回転子Ｒの回転時、位相差をもって各々の脚部
１４、．１４２が磁石１０に対面するように配置されて
いる。That is, when the rotor R rotates, each leg 14, . 142 is arranged to face the magnet 10.
また各脚部１４．，１４□は所定間隔ｍをもって隔って
いる。Also, each leg 14. , 14□ are separated by a predetermined interval m.
巻線１５は磁芯１４の２本の脚部に施され、各部分１５
．．１５□から戊り、各々和動的に作用するよう結線さ
れて２個の端子１６．．１６□を有している。The winding 15 is applied to the two legs of the magnetic core 14, and each part 15
．． ．． 15□, and two terminals 16. ．． It has 16□.
ここで１和動的に作用するヨとは、それぞれの脚部に発
生する電圧が同一の方向にあられれることをいう。Here, the word "harmonically acting dynamically" means that the voltages generated in each leg are applied in the same direction.
すなわち各脚部は独立した１個の信号コイルと考えるこ
とができ、巻き方によって各発生電圧は同一方向にも逆
方向にも取り出すことが可能である。That is, each leg can be considered as one independent signal coil, and each generated voltage can be taken out in the same direction or in the opposite direction depending on the winding method.
而して、本考案の場合は、各発生電圧が同一方向となる
ように取り出すものである。Therefore, in the case of the present invention, each generated voltage is taken out in the same direction.
同一方向の出力電圧を取り出すには、第５図のように２
本の脚部をあたかも１本の脚部の如く取り扱い、両者に
共通１個の巻線を施してもよく、前記１和動的に作用す
るよう結線ヨとはこの場合も含むものである。To extract output voltages in the same direction, as shown in Figure 5,
The legs of the book may be handled as if they were one leg, and one common winding may be applied to both legs, and the above-mentioned connection to act dynamically also includes this case.
それぞれの巻数はほぼ同程度にするか、脚部１４□の方
を多めにしておく。The number of turns for each should be approximately the same, or the number of turns should be more for the leg 14□.
（ただし回転子Ｒが矢印ｎの方向に回転する場合であっ
て、逆に回転する場合には、脚部１４１の方を多めにし
ておく。(However, if the rotor R rotates in the direction of the arrow n, but not in the opposite direction, the number of legs 141 should be larger.
）なお１７は第１図における点火用発電コイルであり、
１８はランプ等の点灯するための補助電源コイルである
。) Note that 17 is the ignition generator coil in Fig. 1,
18 is an auxiliary power supply coil for lighting lamps and the like.
つまり本実施例の点火時期制御用発電機は通例と同様、
点火用発電機等を兼ねるよう構成されている。In other words, the ignition timing control generator of this embodiment is similar to the usual one,
It is configured to double as an ignition generator, etc.
次に作動を説明する。Next, the operation will be explained.
いま第３図示の状態にあって、回転子Ｒは矢印ｎの方向
に回転するものとする。Assume that the rotor R is now in the state shown in the third figure and rotates in the direction of the arrow n.
また各脚部１４１，１４゜の巻数は簡単のため同数とす
る。Further, the number of turns of each leg portion 141, 14° is set to be the same for simplicity.
脚部１４、．１４゜がともに磁石１０に対面している間
は磁束変化がないから電圧の発生はない。Legs 14, . While both 14 degrees face the magnet 10, there is no change in magnetic flux, so no voltage is generated.
次に磁石１０からはずれる場合について考察するが、各
脚部１４．，１４□はそれぞれ別個の信号コイルとして
作動するから、まず脚部１４□について考える。Next, we will consider the case where each leg 14. , 14□ each operate as a separate signal coil, so first consider the leg 14□.
回転子Ｒの回転により脚部、１４□が磁石１０１からは
ずれるとき磁束変化が生じ、次いで次の磁石１０゜に対
面するときにも磁束変化が生じる。As the rotor R rotates, a magnetic flux change occurs when the leg 14□ is separated from the magnet 101, and a magnetic flux change also occurs when it then faces the next magnet 10°.
磁束の状態は第６図イの実線のように推移する。The state of magnetic flux changes as shown by the solid line in FIG. 6A.
このとき隣り合う磁石１０１．１０□はそれぞれ着磁方
向が異なっているために、その変化分は同一方向にあら
れれる。At this time, since the adjacent magnets 101.10□ are magnetized in different directions, the changes are made in the same direction.
したがって第６図口の実線のように同一方向に２個の山
形波形の電圧が巻線１５１に誘起される。Therefore, two chevron waveform voltages are induced in the winding 151 in the same direction as shown by the solid line at the beginning of FIG.
この山形波形の間隔Ｐは磁石１０．．１０゜の間隔１に
対応している。The interval P of this chevron waveform is the magnet 10. ．． This corresponds to an interval 1 of 10°.
次に脚部１４□について考える。脚部１４□は脚部１４
１に対して位相差をもって磁石１０□からはずれ、次い
で次の磁石１０゜に対面する。Next, consider the leg portion 14□. Leg portion 14□ is leg portion 14
It leaves the magnet 10□ with a phase difference with respect to 1, and then faces the next magnet 10°.
このときに生ずる磁束の変化は、脚部１４１の場合と全
く同じであり、第６図イの点線のように推移する。The change in magnetic flux that occurs at this time is exactly the same as in the case of the leg portion 141, and changes as shown by the dotted line in FIG. 6A.
この点線波形により巻線１５゜に生ずる電圧は、第６図
口の点線のようにやはり２個の山形波形となり、実線波
形と同方向にあられれる。The voltage generated across the winding 15° due to this dotted line waveform also forms two chevron-shaped waveforms, as shown by the dotted line at the beginning of FIG. 6, and is in the same direction as the solid line waveform.
実線波形と点線波形との位相差ｑは各脚部間の間隔ｍに
対応している。The phase difference q between the solid line waveform and the dotted line waveform corresponds to the distance m between the legs.
これら実線波形と点線波形とは各々の脚部１４．．１４
゜を独立の信号コイルと考えた場合の波形であって、実
際には各巻線１５、．１５□が結線されているので端子
１６１．１６゜間には上記実線波形と点線波形とを重畳
した電圧波形があられれる。These solid line waveforms and dotted line waveforms correspond to the respective leg portions 14. ．． 14
This is a waveform when considering ゜ as an independent signal coil, and in reality each winding 15, . Since the terminals 15□ are connected, a voltage waveform obtained by superimposing the solid line waveform and the dotted line waveform is generated between the terminals 161 and 16°.
この電圧波形は第６図へのような三つ山の山形波形とな
り、この波形は、第２図の山形波形と同様の作用をする
。This voltage waveform becomes a three-peaked chevron waveform as shown in FIG. 6, and this waveform has the same effect as the chevron waveform shown in FIG.
したがって第２図の山形波形と同じく跳躍的な進角がな
されることは明らかである。Therefore, it is clear that the angle is advanced in a jumping manner, similar to the chevron waveform shown in FIG.
上記のように、本考案によれば、回転子に着磁方向の異
なる複数個の磁石を距離を隔てて交互に設けたので信号
コイルを構成する磁芯の各脚部（独立した１個の信号コ
イルとみなしうる）における巻線に二つ山の電圧波形が
生じ、磁芯を略Ｕ字状に形威し、その２本の脚部が回転
方向に沿うようにしたので前記二つ山の電圧波形が位相
差をもって２個生じ、更に巻線を和動的に作用するよう
施したので両波形が同一方向にあられれるとともに重畳
されて三つ山の波形が得られるものである。As described above, according to the present invention, a plurality of magnets with different magnetization directions are provided alternately at a distance from each other on the rotor, so that each leg of the magnetic core constituting the signal coil (one independent A two-peak voltage waveform occurs in the winding (which can be regarded as a signal coil), and the magnetic core is shaped into an approximately U-shape, with its two legs oriented along the direction of rotation. Two voltage waveforms are generated with a phase difference, and since the windings are arranged to act harmonically, both waveforms are directed in the same direction and are superimposed to obtain a three-peak waveform.
しかも本考案は、従来の回転子がそのまま流用できると
ともに波形を整形するための特別な電子回路を付加する
必要がなく、従来のものに対して磁芯の形状、巻線、配
置に若干の変更を加えるだけでよいので、極めて簡単な
構成で進角波形が得られ所期の目的が達成されるもので
ある。Moreover, with this invention, the conventional rotor can be used as is, there is no need to add a special electronic circuit for shaping the waveform, and there are slight changes in the shape, winding, and arrangement of the magnetic core compared to the conventional rotor. Since it is only necessary to add , an advanced angle waveform can be obtained with an extremely simple configuration, and the desired purpose can be achieved.
なお、第５図のように２本の脚部に共通１個の巻線を施
す場合には、巻線作業が極めて容易になる効果がある。Incidentally, when one common wire is applied to the two legs as shown in FIG. 5, there is an effect that the winding work becomes extremely easy.
第１図は無接点点火装置の回路図の一例を示す図、第２
図は山形の進角波形を示す図、第３図は本考案の点火時
期制御用発電機の平面図、第４図は第３図示点火時期制
御用発電機のＡ−Ａ断面図、第５図は信号コイルの他の
実施例を示す図、第６図イは各脚部に付与される磁束波
形を示す図、口は各巻線に発生する電圧波形を示す図、
ハはこの電圧波形を重畳して得られる山形の進角波形を
示す図である。
３・・・・・・信号コイル、４・・・・・・制御整流器
１ｏ・・・・・・磁石、１４・・・・・・磁芯、１４
．．１４□・・・・・・脚部、１５・・・・・・巻線、
Ｆ・・・・・・基台、Ｒ・・・・・・回転子、Ｌ・・・
・・・トリガーレベル、Ｃ・・・・・・進角幅、１・曲
・磁石間の距離、ｍ・・・・・・脚部間の距離、ｐ・・
・・・・二つ山の距離、ｑ・・・・・・位相差。Figure 1 is a diagram showing an example of a circuit diagram of a non-contact ignition device, Figure 2
3 is a plan view of the ignition timing control generator of the present invention; FIG. 4 is a sectional view taken along line A-A of the ignition timing control generator shown in FIG. 3; The figure shows another embodiment of the signal coil, Figure 6A shows the magnetic flux waveform applied to each leg, and the figure shows the voltage waveform generated in each winding.
C is a diagram showing a chevron-shaped advance angle waveform obtained by superimposing this voltage waveform. 3...Signal coil, 4...Control rectifier 1o...Magnet, 14...Magnetic core, 14
．． ．． 14□... Leg, 15... Winding wire,
F...base, R...rotor, L...
...Trigger level, C... Advance angle width, 1. Distance between song and magnet, m... Distance between legs, p...
...Distance between two peaks, q...Phase difference.
Claims (3)
子に対向する信号コイルとから戒り、前記回転子にはそ
の径方向に着磁された複数個の磁石を所定距離を隔てる
とともに、交互に着磁方向が異なるように設け、前記磁
石により回転子の径方向に発生する磁界を受ける前記信
号コイルを、所定間隔をもって隔てた２本の脚部が回転
子の回転方向に並ぶように配置した略Ｕ字形の磁芯とそ
の脚部に施した和動的に作用する巻線とから構威し、各
脚部に施した巻線で発生する電圧を重畳して中央の山が
最も高くなる三つ山の点火時期制御信号を前記和動的に
作用する巻線から取り出すようにした無接点点火装置の
点火時期制御用発電機。(1) A rotor that is interlocked with the output shaft of an internal combustion engine and a signal coil that faces the rotor are separated from each other, and a plurality of magnets magnetized in the radial direction of the rotor are placed at a predetermined distance from each other. The signal coils are arranged so that the magnetization directions are alternately different, and the signal coils receive the magnetic field generated in the radial direction of the rotor by the magnets, and two legs separated by a predetermined interval are arranged in the rotation direction of the rotor. It consists of a roughly U-shaped magnetic core arranged like this and windings that act harmonically on the legs, and the voltage generated by the windings on each leg is superimposed to generate a peak in the center. A generator for controlling ignition timing of a non-contact ignition device, wherein three peaks of ignition timing control signals having the highest value are extracted from the windings acting harmonically.
求の範囲第１項記載の点火時期制御用発電機。(2) The generator for ignition timing control according to claim 1, wherein each of the two legs is provided with a winding.
録請求の範囲第１項記載の点火時期制御用発電機。(3) A generator for ignition timing control according to claim 1 of the utility model registration claim, in which two legs are provided with one common winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976135543U JPS609425Y2 (en) | 1976-10-07 | 1976-10-07 | Generator for controlling the ignition timing of non-contact ignition devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976135543U JPS609425Y2 (en) | 1976-10-07 | 1976-10-07 | Generator for controlling the ignition timing of non-contact ignition devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5352314U JPS5352314U (en) | 1978-05-04 |
| JPS609425Y2 true JPS609425Y2 (en) | 1985-04-03 |
Family
ID=28744422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1976135543U Expired JPS609425Y2 (en) | 1976-10-07 | 1976-10-07 | Generator for controlling the ignition timing of non-contact ignition devices |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609425Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4815628U (en) * | 1971-06-30 | 1973-02-22 | ||
| JPS5175830A (en) * | 1974-12-27 | 1976-06-30 | Yamaha Motor Co Ltd | NAINENKIKANNOTENKASHINKAKUSEIGYOSOCHI |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5318500Y2 (en) * | 1973-12-06 | 1978-05-17 | ||
| JPS5325057Y2 (en) * | 1974-02-12 | 1978-06-27 | ||
| JPS5257326Y2 (en) * | 1974-06-18 | 1977-12-26 |
-
1976
- 1976-10-07 JP JP1976135543U patent/JPS609425Y2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4815628U (en) * | 1971-06-30 | 1973-02-22 | ||
| JPS5175830A (en) * | 1974-12-27 | 1976-06-30 | Yamaha Motor Co Ltd | NAINENKIKANNOTENKASHINKAKUSEIGYOSOCHI |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5352314U (en) | 1978-05-04 |
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