JPS63142203A - Apparatus for detecting angle of rotation and rotary position of engine - Google Patents
Apparatus for detecting angle of rotation and rotary position of engineInfo
- Publication number
- JPS63142203A JPS63142203A JP28898186A JP28898186A JPS63142203A JP S63142203 A JPS63142203 A JP S63142203A JP 28898186 A JP28898186 A JP 28898186A JP 28898186 A JP28898186 A JP 28898186A JP S63142203 A JPS63142203 A JP S63142203A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- light emitting
- engine
- rotary plate
- light receiving
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 10
- 239000000057 synthetic resin Substances 0.000 claims abstract description 10
- 239000004697 Polyetherimide Substances 0.000 claims description 2
- 229920001601 polyetherimide Polymers 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
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配電器に内蔵される回転角度及び回
転位置の検出装置に係り、特に部品点数が少なくて済む
ように改良した回転角度・回転位置検出装置の構造に関
するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a rotation angle and rotation position detection device built into a power distribution device for an internal combustion engine, and in particular to a rotation angle and rotation position detection device that is improved so as to reduce the number of parts. -Relates to the structure of the rotational position detection device.
エンジンの電子制御システムにおいて、エンジン回転と
同期して回転する配電器に内蔵した回転角度及び回転位
置検出装置としては、発明協会発行の公開技報８３−１
２６３５号に記載の技術が公知である。この公知の検出
装置は、発光素子と受光素子とを対向させ、その間にス
リットを有する円板が回転するように配置し、光の明暗
変化を電圧変化に変換し、所定の信号を出力するように
した構造である。In an engine electronic control system, a rotational angle and rotational position detection device built into a power distributor that rotates in synchronization with the engine rotation is disclosed in Technical Report 83-1 published by Japan Institute of Invention and Innovation.
The technique described in No. 2635 is known. This known detection device has a light-emitting element and a light-receiving element facing each other, and a disk having a slit is placed between them so as to rotate, converting changes in brightness of light into changes in voltage, and outputting a predetermined signal. The structure is as follows.
前記発光素子と受光素子とが互いに対向する面の側には
、回転板に設けたスリットに近似したスリットを有する
板を設置し、光の散乱を防止するようにしている。On the side of the surface where the light emitting element and the light receiving element face each other, a plate having slits similar to the slits provided in the rotating plate is installed to prevent scattering of light.
前述の公知例においては、要するにエンジンのクランク
軸と同期して回転する回転板にスリットを設けると共に
、上記スリットの回転軌跡を介して対向する発光素子、
受光素子を設け、かつ、上記発光素子の発光面と回転板
との間に、前記回転板のスリットに対応するスリットを
設けるとともに、前記受光素子の受光面と回転板との間
に同様のスリットを設けた構造が用いられ、回転板のス
リットに対応するスリットを設けた１対のスリット板を
別体に構成するとともに、このスリット板をケーシング
に対して位置決めして取り付けている。In the above-mentioned known example, in short, a slit is provided in a rotary plate that rotates in synchronization with the crankshaft of the engine, and a light emitting element that faces across the rotation locus of the slit,
A light receiving element is provided, and a slit corresponding to the slit of the rotating plate is provided between the light emitting surface of the light emitting element and the rotating plate, and a similar slit is provided between the light receiving surface of the light receiving element and the rotating plate. A structure in which a pair of slit plates with slits corresponding to the slits of the rotary plate are provided is constructed separately, and the slit plates are positioned and attached to the casing.
上記の公知例においては、別体の部材に構成されたスリ
ット板をホルダ及びケースの一部にそれぞれ接着しなけ
ればならず、またスリット板の位置決めビンが必要であ
り、さらにホルダを固定するねじ締め作業が必要となる
等、部品点数が多いこともあってコスト高の要因となっ
ていた。In the above-mentioned known example, the slit plate constituted as a separate member must be glued to the holder and a part of the case, a positioning pin for the slit plate is required, and a screw for fixing the holder is required. The large number of parts required tightening work, which led to high costs.
本発明の目的は１部品点数が少なく２作業性の良いピッ
クアップを形成できる構造の回転角度検出装置を提供す
ることにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a rotation angle detection device having a structure in which a pickup with a small number of parts and good workability can be formed.
上記目的は、成形時に流動性の良い合成樹脂材料を用い
、ホルダとケースとを一体成形することにより達成され
る。この原理を実用面に適用するための具体的な構成と
して、本発明の回転角度。The above object is achieved by integrally molding the holder and the case using a synthetic resin material with good fluidity during molding. The rotation angle of the present invention is a specific configuration for applying this principle to practical use.
位置検出装置は、前記の発光素子、及び受光素子を収納
する合成樹脂ケースに、前記回転板のスリットに対応す
るスリットを一体に成形したことを特徴とする。The position detection device is characterized in that a slit corresponding to the slit of the rotary plate is integrally molded into a synthetic resin case that houses the light emitting element and the light receiving element.
上述の構成によれば、回転板のスリットに対応するスリ
ット（静止部材であるスリット）をケースと一体に成形
するため（即ち、別体のスリット板を用いないため、構
成部品点数が少ない、更に、スリット板の組付作業を必
要としないので組立所要工数が少なり、シかも組付誤差
を生じない。According to the above configuration, since the slits corresponding to the slits of the rotating plate (slits that are stationary members) are integrally molded with the case (that is, a separate slit plate is not used), the number of component parts is small, and Since there is no need to assemble the slit plate, the number of man-hours required for assembly is reduced, and no assembly errors occur.
以下１本発明の一実施例を第１図〜第８図により説明す
る。An embodiment of the present invention will be described below with reference to FIGS. 1 to 8.
第１＠は本発明が適用される配電器の断面図である。The first @ is a sectional view of a power distributor to which the present invention is applied.
１はエンジンと同期し、その半分の回転速度で回転する
シャフト、２はハウジング、３はベアリングである。1 is a shaft that rotates at half the rotational speed of the engine in synchronization with the engine, 2 is a housing, and 3 is a bearing.
シャフト１の一端には第１のカラー４が装着され、この
カラー４のフランジ部４ａにビン５が圧入されている。A first collar 4 is attached to one end of the shaft 1, and a bottle 5 is press-fitted into a flange portion 4a of the collar 4.
ビン５は第２のカラー６のフランジ部６ａに設けた孔７
に嵌合している。The bottle 5 has a hole 7 provided in the flange portion 6a of the second collar 6.
is fitted.
フランジ部４ａと同６ａとの間には回転板８が装着され
、ねじ９で第２のカラー６と第１のカラー４とをシャフ
ト１の段部１ａに圧接するようにし、回転板８゛をフラ
ンジ部４ａと同６ａとで挟持している。A rotary plate 8 is installed between the flange portion 4a and the flange 6a, and the second collar 6 and the first collar 4 are pressed against the stepped portion 1a of the shaft 1 with screws 9, and the rotary plate 8 is held between the flange portion 4a and the flange portion 6a.
１０は合成樹脂で作られたケースで、外部への信号取出
し用コネクタ（第６図について後述）と一体成形されて
いる。また、ハイブリッド集積回路１２で形成された電
子回路がケース１０に設置されている。Reference numeral 10 denotes a case made of synthetic resin, which is integrally molded with a connector for extracting signals to the outside (described later with reference to FIG. 6). Further, an electronic circuit formed of a hybrid integrated circuit 12 is installed in the case 10.
光電式ピックアップ１３はケース１０とで一体成形され
た形状をなしく詳細は第３図について後述）、ケース１
０はハウジング２の底面にねじ１４で固定されている。The photoelectric pickup 13 is not integrally molded with the case 10 (details will be described later with reference to FIG. 3), case 1
0 is fixed to the bottom surface of the housing 2 with screws 14.
以下、ケース１０に設置されたハイブリッド集積回路１
２．光電式ピックアップ１３の集合体を電子回路ユニッ
ト１５と呼ぶ。Below, the hybrid integrated circuit 1 installed in the case 10
2. The assembly of the photoelectric pickups 13 is called an electronic circuit unit 15.
第２図は電子回路ユニットの詳細を示す平面図、第３図
はその断面図、第４図は■部拡大図、第５図は底面図、
第６図は分解図である。Fig. 2 is a plan view showing details of the electronic circuit unit, Fig. 3 is a cross-sectional view thereof, Fig. 4 is an enlarged view of the ■ section, Fig. 5 is a bottom view,
FIG. 6 is an exploded view.
ケース１０には孔２１を有した金属ブツシュ２８が３個
埋設してあり、第１図に示したねじ１４が貫通する。Three metal bushings 28 having holes 21 are embedded in the case 10, through which the screws 14 shown in FIG. 1 pass.
光電式ピックアップ１３は１発光索子２３と受光素子２
４と（第３図、第４図参照）からなり。The photoelectric pickup 13 has one light emitting element 23 and a light receiving element 2.
4 (see Figures 3 and 4).
それぞれホルダ部２２に固定されている。Each is fixed to the holder part 22.
発光素子２３のリード２３ａはリードフレーム２６．２
７に、受光素子２４のリードはリードフレーム２７にそ
れぞれ溶接されている。The lead 23a of the light emitting element 23 is connected to the lead frame 26.2.
7, the leads of the light receiving element 24 are welded to the lead frame 27, respectively.
（第５図参照）コネクタ１１の端子１１ａはす−ドフレ
ーム２９に溶接され、ハイブリッド集積回路１２と電気
的に接続されている。(See FIG. 5) Terminals 11a of the connector 11 are welded to the steel frame 29 and electrically connected to the hybrid integrated circuit 12.
前記リードフレーム２６，２７．２９は例えば黄銅、燐
青銅、ニッケル、鉄ニツケル合金等の内の何れかの材料
からなり、比較的可撓性に富み、かつはんだ付は性の良
いものが選定される。The lead frames 26, 27, and 29 are made of, for example, brass, phosphor bronze, nickel, iron-nickel alloy, etc., and are selected from materials that are relatively flexible and have good soldering properties. Ru.
２５（第３図、第６図）は合成樹脂で成形した位置決め
部材で、リード２３ａ、２４ｂを挿通する孔を有すると
共に、リードフレーム２６を保持している。Reference numeral 25 (FIGS. 3 and 6) is a positioning member molded from synthetic resin, which has holes through which the leads 23a and 24b are inserted, and holds the lead frame 26.
ハイブリッド集積回路１２は（第６図参照）、セラミッ
ク基板１２ａの載置された素子１２ｂと、リードフレー
ム２７．２９とからなり、これらの部品ははんだで接合
される。The hybrid integrated circuit 12 (see FIG. 6) consists of an element 12b on which a ceramic substrate 12a is mounted and lead frames 27 and 29, and these parts are joined by solder.
ケース１０は端子１１ａを埋設してコネクタ１１が形成
され、一部に突起３１が形成される。A connector 11 is formed by embedding a terminal 11a in the case 10, and a protrusion 31 is formed in a part.
位置決め部材２５の孔２５ｂに突起３１を貫通し、その
頭部を熱かしめすることによってケース１０に固定され
る。The protrusion 31 is inserted into the hole 25b of the positioning member 25 and fixed to the case 10 by hot caulking its head.
次に、ハイブリッド集積回路１２がケース１０に載置さ
れ、接着固定される。載置された時、リードフレーム２
７．２９は発光素子のり−ド２３ａ。Next, the hybrid integrated circuit 12 is placed on the case 10 and fixed with adhesive. When placed, lead frame 2
7.29 is a light emitting element board 23a.
受光素子のリード２４ａ、端子１１ａに対向するよう配
置される。そして次の工程で、溶接によってそれぞれ接
続される。It is arranged to face the lead 24a and terminal 11a of the light receiving element. In the next step, they are connected by welding.
第７！！Ｉは、光電子ピックアップ１３の一部をなすス
リット部分の詳細を示す為の平面図、第８図はその断面
図である。Seventh! ! I is a plan view showing details of a slit portion forming a part of the photoelectronic pickup 13, and FIG. 8 is a sectional view thereof.
スリット２２ｂは、第１図の回転板８に設けたスリット
に近似した形状のものである。The slit 22b has a shape similar to the slit provided in the rotating plate 8 of FIG.
第８図に示す如く、発光素子挿入穴２２ａと回転板８と
の間に、静止部分であるスリット２２ｂをホルダ部２２
と共に一体成形する。このホルダ部は第３図に示したケ
ース１０に対して一体的に成形された部材である。この
ようにして、スリット２２ｂをケース１０（発、受光素
子２３．２４を収納している）と一体に成形する。As shown in FIG. 8, a slit 22b, which is a stationary part, is provided in the holder part 22 between the light emitting element insertion hole 22a and the rotating plate 8.
It is integrally molded with. This holder portion is a member integrally molded with the case 10 shown in FIG. In this way, the slit 22b is formed integrally with the case 10 (which houses the light emitting and light receiving elements 23 and 24).
一方、受光素子挿入穴１００ａと回転板８との間にスリ
ット１００ｂを設ける。On the other hand, a slit 100b is provided between the light receiving element insertion hole 100a and the rotating plate 8.
従って、平面図である第７図においてはスリット２２ｂ
と同１００ｂとが重なっている。Therefore, in FIG. 7 which is a plan view, the slit 22b
and 100b overlap.
第７図においては、スリット２２ｃとスリット１００ｃ
とも、同様に重なっている。これらのスリット２２ｏ、
１００ｃを含む面で切断した断面は前述の第８図と類似
の形状（厳密に同一ではない）となる、従って、第８図
にはスリットの図面参照番号２２ｃ、１００ｃに括弧を
付して記した。In FIG. 7, slit 22c and slit 100c
Both overlap in the same way. These slits 22o,
A cross section cut along a plane including 100c has a similar shape (but not exactly the same) as that in FIG. 8 described above. Therefore, in FIG. did.
上記のスリット２２ｂ、同１００ｂは基準位置信号用の
もので、０．５ｍ＋程度の幅で形成され、クランク回転
位置の内の特定の基準位置（一般に上死点）を検出する
。The slits 22b and 100b are for reference position signals and are formed with a width of about 0.5 m+ to detect a specific reference position (generally the top dead center) among the crank rotational positions.
スリット２２ｃ、同１００ｃは角度位置信号用のもので
、０．２画以下の幅で複数個形成される。The slits 22c and 100c are for angular position signals, and are formed in plural numbers with a width of 0.2 strokes or less.
前記のスリット２２ｂ、２２ｃ、１００ｂ。The aforementioned slits 22b, 22c, 100b.
１００ｃを有するケース１０を一体成形する場合。When the case 10 having 100c is integrally molded.
成形操作を容易ならしめるため、成形時に流動性が良く
、かつ耐熱性の高い非品性熱可塑性ポリエーテルイミド
樹脂を用いるのが好適である。In order to facilitate the molding operation, it is preferable to use a non-grade thermoplastic polyetherimide resin that has good fluidity and high heat resistance during molding.
また、上記のスリット２２ｂと同１００ｂとの間に、回
転板８を位置せしめる溝状部２２ｄを形成する為に、成
形型に可動型を連動して設けておく、これにより、いわ
ゆるアンダーカット形状でも容易に一体成形できる。In addition, in order to form a groove-shaped portion 22d in which the rotary plate 8 is positioned between the slit 22b and the slit 100b, a movable mold is provided in conjunction with the molding die, thereby forming a so-called undercut shape. However, it can be easily molded into one piece.
本発明を実施する際、成形用の合成樹脂に顔料を入れて
黒色とすることは容易であり、これによつτスリット部
を通過する光の散乱を防止できる。When carrying out the present invention, it is easy to add a pigment to the synthetic resin for molding to make it black, thereby preventing scattering of light passing through the τ slit portion.
本発明によれば、ホルダとケースとを合成樹脂で一体成
形したことにより、従来使用していたスリット板９位置
決めピンが不要になると同時に、これらを接合する作業
を必要としない為、コスト低減効果を奏する。According to the present invention, by integrally molding the holder and the case with synthetic resin, the slit plate 9 positioning pins used in the past are no longer necessary, and at the same time, there is no need to join them together, resulting in a cost reduction effect. play.
さらに１発光素子側と受光素子側とに形成されるスリッ
トの対向位置精度、即ち第７図で示した平面から見たス
リットのずれ誤差は、合成樹脂成形の型精度のみで決ま
る為、誤差を少なくできるという効果も奏する。Furthermore, the accuracy of the facing positions of the slits formed on the light-emitting element side and the light-receiving element side, that is, the misalignment error of the slits when viewed from the plane shown in Fig. 7, is determined only by the mold accuracy of the synthetic resin molding. It also has the effect of reducing the amount.
第１図乃至第８図は本発明の実施例を示し、第１図は本
発明を適用した配電器の全体的断面図。
第２図は電子回路ユニットの詳細を示す平面図、第３図
はその断面図、第４図は要部拡大図、第５図は底面図、
第６図は分解図、第７図はピックアップの一部を形成す
る部材の平面図、第８図はその断面図である。
８・・・回転板、１３・・・光電式ピックアップ、２２
ｂ。
２２ｃ・・・スリット、２３・・・発光素子、２４・・
・受光素子、１００ｂ、１００ｃ・・・スリット。1 to 8 show embodiments of the present invention, and FIG. 1 is an overall sectional view of a power distributor to which the present invention is applied. Figure 2 is a plan view showing details of the electronic circuit unit, Figure 3 is its sectional view, Figure 4 is an enlarged view of the main parts, Figure 5 is a bottom view,
FIG. 6 is an exploded view, FIG. 7 is a plan view of a member forming a part of the pickup, and FIG. 8 is a sectional view thereof. 8... Rotating plate, 13... Photoelectric pickup, 22
b. 22c...Slit, 23...Light emitting element, 24...
- Light receiving element, 100b, 100c... slit.
Claims (1)
スリットを設けると共に、上記スリットの回転軌跡を介
して対向する発光素子、受光素子を設け、かつ、上記発
光素子の発光面と回転板との間に、前記回転板のスリッ
トに対応するスリットを設けるとともに、前記受光素子
の受光面と回転板との間に同様のスリットを設けたエン
ジンの回転状態検出装置において、前記の発光素子、及
び受光素子を収納する合成樹脂ケースに、前記回転板の
スリットに対応するスリットを一体に成形したことを特
徴とする、エンジンの回転角度及び回転位置検出装置。 ２、前記の合成樹脂ケースはポリエーテルイミド樹脂で
あることを特徴とする特許請求の範囲第１項に記載のエ
ンジンの回転角度及び回転位置検出装置。[Scope of Claims] 1. A slit is provided in a rotary plate that rotates in synchronization with the crankshaft of the engine, and a light emitting element and a light receiving element are provided facing each other across the rotation locus of the slit, and the light emitting element is In an engine rotation state detection device, a slit corresponding to the slit of the rotary plate is provided between the light emitting surface and the rotary plate, and a similar slit is provided between the light receiving surface of the light receiving element and the rotary plate, A rotational angle and rotational position detection device for an engine, characterized in that a slit corresponding to the slit of the rotary plate is integrally molded into a synthetic resin case that houses the light emitting element and the light receiving element. 2. The engine rotational angle and rotational position detection device according to claim 1, wherein the synthetic resin case is made of polyetherimide resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28898186A JPS63142203A (en) | 1986-12-05 | 1986-12-05 | Apparatus for detecting angle of rotation and rotary position of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28898186A JPS63142203A (en) | 1986-12-05 | 1986-12-05 | Apparatus for detecting angle of rotation and rotary position of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63142203A true JPS63142203A (en) | 1988-06-14 |
| JPH0473731B2 JPH0473731B2 (en) | 1992-11-24 |
Family
ID=17737297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28898186A Granted JPS63142203A (en) | 1986-12-05 | 1986-12-05 | Apparatus for detecting angle of rotation and rotary position of engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63142203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113693A (en) * | 1989-09-22 | 1992-05-19 | Mitsubishi Denki Kabushiki Kaisha | Rotational position detecting apparatus with a signal generator |
-
1986
- 1986-12-05 JP JP28898186A patent/JPS63142203A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113693A (en) * | 1989-09-22 | 1992-05-19 | Mitsubishi Denki Kabushiki Kaisha | Rotational position detecting apparatus with a signal generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0473731B2 (en) | 1992-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |