JPS58147249A - Signal transmitter of rotary part - Google Patents
Signal transmitter of rotary partInfo
- Publication number
- JPS58147249A JPS58147249A JP57028825A JP2882582A JPS58147249A JP S58147249 A JPS58147249 A JP S58147249A JP 57028825 A JP57028825 A JP 57028825A JP 2882582 A JP2882582 A JP 2882582A JP S58147249 A JPS58147249 A JP S58147249A
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- ring
- emitting element
- fixed
- signal transmission
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/027—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Steering Controls (AREA)
- Optical Communication System (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、回転部分の光通信装置に係り、特にステアリ
ング部に使用するに好適な光通信装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical communication device for a rotating part, and particularly to an optical communication device suitable for use in a steering part.
ステアリングと車体間の信号伝送方法、電力供給方法は
ブラシを用い次スリップリングによる方法と有線による
方法が６つ次。前者は摩擦による電気ノイズが発生し誤
動作の原因となつ九。またブラシの耐久性にも問題がめ
った。後者では、ステアリングを回転し九際、信号線に
ねじフカが加えられるため、信号線の断線または摩耗と
いう問題がめった。There are 6 methods for transmitting signals and power supply between the steering wheel and the car body: using a brush, using a slip ring, and using wires. The former causes electrical noise due to friction, which causes malfunctions. There were also problems with the durability of the brushes. In the latter case, when the steering wheel is rotated, a screw hook is added to the signal line, which often causes problems such as breakage or wear of the signal line.
本発明の目的は、電気ノイズによる誤動作がなく伝送路
の摩耗、損傷が極めて少なく、シかも製造する際に非常
に加工の容易な、自動車内のステアリングと車体との閣
の光通信装置を提供することにるる。An object of the present invention is to provide an optical communication device between a steering wheel and a vehicle body in an automobile, which is free from malfunctions caused by electrical noise, has very little wear and damage on the transmission path, and is extremely easy to process when manufacturing the vehicle. I'm going to do it.
本発明装置は、ステアリングと車体の間の信号伝送を光
によって行ない、ステアリング側への電力供給を電磁誘
導によって行なうものである。ステアリング側と車体側
にはそれぞれリングがはめ込まれ、リング状の光伝送路
を形成しておシ、発光素子と受光素子を前記光伝送路に
当接するように配置したものである。また、ステアリン
グ側と車体間にはそれぞれコイルを対向させてはめ込ん
だものである。The device of the present invention transmits signals between the steering wheel and the vehicle body using light, and supplies power to the steering wheel side using electromagnetic induction. Rings are fitted into the steering side and the vehicle body side, respectively, to form a ring-shaped optical transmission path, and a light emitting element and a light receiving element are arranged so as to be in contact with the optical transmission path. In addition, coils are fitted on the steering side and between the vehicle body so as to face each other.
以下、本発明について図面を用いて詳細に説明する。第
１図において、回転部２はステアリングシャフト１にボ
ルト１７で固定されている。固定部３は車体側に固定さ
れている。回転部２はそれ自身と一体に回転可能に取付
けられ九強磁性体からなる円筒状ヨーク４（以下ロータ
コアと呼ぶ）を有してお〕、固定部３はロータコア４と
わずかの隙間をおいて対向する強磁性体からなる円筒状
ヨーク５（以下ステータコアと呼ぶ）を有している。ロ
ータコア４とステータコア５はかみ合うように対向して
いるが、これは外乱光の侵入を防ぎ誤動作を防止すると
ともに、埃などから遮断するという働きをしている。回
転部２への電力供給のために樹脂性ボビン１０．ＩＩＫ
巷かれたコイル８．９がステータコア５．ロータコア４
の内側にそれぞれはめ込まれている。ロータコア４の内
側にはリング状溝１４を有するリング状部材６（以下Ｌ
ＥＤリングと呼ぶ）がはめ込まれ固定されておシ、リン
グ状溝１４の一部に面して発光素子１３が取付けられて
いる。Ｌ Ｅ Ｄ ９ング６にわずかの隙間をおいてリ
ング状部材７（以下ＰＴリングと呼ぶ）がステータコア
５の内側にはめ込まれてお、９．ＰＴリング７の一部に
は発光素子１３と対向するように受光素子１２が取付け
られている。Hereinafter, the present invention will be explained in detail using the drawings. In FIG. 1, the rotating part 2 is fixed to the steering shaft 1 with a bolt 17. The fixed part 3 is fixed to the vehicle body side. The rotating part 2 has a cylindrical yoke 4 (hereinafter referred to as the rotor core) made of a nine-ferromagnetic material which is rotatably attached to itself, and the fixed part 3 is connected to the rotor core 4 with a slight gap therebetween. It has opposing cylindrical yokes 5 (hereinafter referred to as stator cores) made of ferromagnetic material. The rotor core 4 and stator core 5 face each other so as to mesh with each other, and this serves to prevent the intrusion of ambient light and prevent malfunctions, as well as to block out dust and the like. A resin bobbin 10 is used to supply power to the rotating part 2. IIK
The twisted coil 8.9 is attached to the stator core 5. rotor core 4
are fitted inside each. A ring-shaped member 6 (hereinafter referred to as L) having a ring-shaped groove 14 is provided inside the rotor core 4.
An ED ring (referred to as an ED ring) is fitted and fixed, and a light emitting element 13 is attached facing a part of the ring-shaped groove 14. 9. A ring-shaped member 7 (hereinafter referred to as PT ring) is fitted inside the stator core 5 with a slight gap between the L E D 9 ring 6; A light receiving element 12 is attached to a part of the PT ring 7 so as to face the light emitting element 13.
ＬＥＤリング６とＰＴリング７によってリング状＃＄１
４は光伝送路となる０両リング６．７は切削または成形
後、光伝送路を形成する部分に反射材料を塗布して製造
される０回転部２にはエンコーダ１９を有するプリント
配線板１６が固定されており、固定部３には、デコーダ
２０を有するプリント配線板１５が固定されている。Ring shape #$1 by LED ring 6 and PT ring 7
Reference numeral 4 denotes a zero ring 6 which becomes an optical transmission path.7 is manufactured by applying a reflective material to the part that forms the optical transmission path after cutting or molding.The zero rotation part 2 includes a printed wiring board 16 having an encoder 19. is fixed, and a printed wiring board 15 having a decoder 20 is fixed to the fixed part 3.
第３図、第４図、第５図は他の実施例である。FIGS. 3, 4, and 5 show other embodiments.
第３図において、回転側リング状部材２３と固定側リン
グ状部＝材２４との形状によシ回転軸方向へのずれが少
ないという特徴がある。また、リング状部材２３．２４
は板材をプレスするか、樹脂を成形して造られるので光
伝送線を形成する部分の仕上精度を高くすることが可能
であシ、その分だけ光伝送路内での光の減衰が少なくな
るという特徴がある。In FIG. 3, the shape of the rotating ring-shaped member 23 and the stationary ring-shaped member 24 is characterized in that there is little deviation in the direction of the rotation axis. In addition, ring-shaped members 23 and 24
Since it is made by pressing plate material or molding resin, it is possible to improve the finishing precision of the part that forms the optical transmission line, and the attenuation of light within the optical transmission line is reduced accordingly. There is a characteristic that
第４図はリング状部材２５．２６を回転面方向に形成す
ることによってコイル４５．４６の大型化を図ったもの
であシ、コイルの結合が良く効率よく回転側に電力を供
給できるという特徴がある。Fig. 4 shows a coil 45, 46 made larger by forming ring-shaped members 25, 26 in the direction of the rotating surface, which has a feature that the coils are well coupled and power can be efficiently supplied to the rotating side. There is.
第５図はリング状部材２１．２２をコイル４０゜４１の
外側に取付ることにより、さらにコイル４０．４１の大
型化を図った実施例であシ、前記第４図の実施例以上に
高い効率で回転部に電力を供給できるという特徴がある
。FIG. 5 shows an embodiment in which the coils 40 and 41 are further enlarged by attaching ring-shaped members 21 and 22 to the outside of the coils 40 and 41, and are higher than the embodiment shown in FIG. 4. It is characterized by being able to efficiently supply power to rotating parts.
第６図は本発明の回路構成である。車載バッテリ３８の
電力はプリント配線板１５に取゛付けられた発振回路２
７により交流に変換され同定側のコイル８に供給される
。ライン４７には回転側のコイル９に誘起した交流電流
を整流して得られた直流電流が現れ、これを回転側の電
源としている。FIG. 6 shows the circuit configuration of the present invention. The power of the vehicle battery 38 is supplied to the oscillation circuit 2 attached to the printed wiring board 15.
7 converts it into alternating current and supplies it to the identification side coil 8. A direct current obtained by rectifying the alternating current induced in the rotating coil 9 appears in the line 47, and this is used as a power source for the rotating side.
回転部２に取付けられたスイッチ１８ａ、１８ｂ。Switches 18a and 18b attached to the rotating part 2.
・・・・・・はエンコーダ１９に接続されておシ、エン
コーダ１９はスイッチ１８ａ、１８ｂ、・・・・・・の
ＮＲＺ信号をパルス変調によシスブリットフェーズ信号
に変換し、発光素子１３を駆動する。発光素子１３の放
った光は光伝送路用溝１４の中を進み、受光素子１２に
よシ受光される。受光素子１２の受けた信号はデコーダ
２０によ、ｊｉ）ＮＲＺ信号に復調され、負荷３７１，
３７ｂ、・・・・・・を駆動する。. . . are connected to an encoder 19, which converts the NRZ signals of the switches 18a, 18b, . drive The light emitted by the light emitting element 13 travels through the optical transmission line groove 14 and is received by the light receiving element 12. The signal received by the light receiving element 12 is demodulated into a NRZ signal by the decoder 20, and then sent to the load 371,
37b, . . . are driven.
第７図は各部のパルス波形を示したものである。FIG. 7 shows pulse waveforms at various parts.
Ａはクロック信号であシ、これにより回路は動作してい
る。Ｂはエンコーダ１９においてパルス変調される前の
ＮＲＺ信号であシ、この場合＠０１１００１α・・”を
示している。即ちスイッチ１８ｂ、１８Ｃ。A is a clock signal, by which the circuit operates. B is the NRZ signal before being pulse-modulated by the encoder 19, in this case it indicates "@011001α...". That is, the switches 18b and 18C.
１８ｆがＯＮの場合である。Ｃは発光素子１３の出力信
号であシ、ＢのＮＲＺ信号をパルス変調しスプリット７
工−ズ信号に変換したものである。This is the case when 18f is ON. C is the output signal of the light emitting element 13, and the NRZ signal of B is pulse-modulated and sent to the split 7.
It is converted into a factory signal.
Ｄはライン４８に現れる信号波形であるが、パルスのピ
ーク値ＶＰは発光素子１３と受光素子１２との相対的な
位置関係によって変化する。Ｖｐの変化の影響を受けな
いように、Ｄの信号をコンパレータ３１に入力する。Ｅ
はコンパレータ３１の出力波形である。Ｄにおいて破１
ａＶｓ−はコンパレータ３１への入力であるリファレン
ス電圧Ｖｔ−であ”）、Ｖｐの変化にかかわらずＥにお
ける波形のデユーティ比が約５０％となるように設定さ
れている。D is a signal waveform appearing on the line 48, and the peak value VP of the pulse changes depending on the relative positional relationship between the light emitting element 13 and the light receiving element 12. The D signal is input to the comparator 31 so as not to be affected by changes in Vp. E
is the output waveform of the comparator 31. Break 1 in D
aVs- is a reference voltage Vt- which is input to the comparator 31), and is set so that the duty ratio of the waveform at E is approximately 50% regardless of changes in Vp.
本発明装置は、ステアリングと車体側にはめ込まれｈｖ
リングよって光伝送路を形成し信号の送受を行なうもの
であるから、信号伝送路は周囲から影響を受けることも
、周囲に影響を及ぼすことも全くなく、摩耗や損傷も皆
無に等しい。また、コイル、光伝送路を形成するリング
は、はめ込み式になっているので加工が非常に容易であ
シ、高い品質の光伝送路を形成することができる。以上
のことから信頼性が極めて高いと言える。The device of the present invention is fitted into the steering wheel and the vehicle body side.
Since the ring forms an optical transmission path and transmits and receives signals, the signal transmission path is not affected by or affects the surroundings at all, and there is virtually no wear or damage. Further, since the coil and the ring forming the optical transmission line are of a fitting type, processing is very easy, and a high quality optical transmission line can be formed. Based on the above, it can be said that the reliability is extremely high.
第１図は本発明装置のステアリング部への一実施例を示
す構造図、第２図は第１図のＡＡ’部分断面図、第３図
、第４図、第５図は他の実施例を示す構造図、第６図は
回路構成図、第７図は信号波形図である。
２・・・回転部、３・・・固定部、４・・・ロータコア
、５・・・ステータコア、６・・・ＬＥＤリング、７・
・・ＰＴクリング８．９・・・コイル、１２・・・受光
素子、１３・・・発光素子、１４・・・溝、１９・・・
エンコーダ、２０・・・デコーダ、ン７・・・発振回路
、３０・・・変調回路、３１第 ２１
６
４−
第 ３０
第 ４−躬
％５Ｉ２１Ｉ
第 ６ ロ
ー直
寮 ７ 図Fig. 1 is a structural diagram showing one embodiment of the steering unit of the device of the present invention, Fig. 2 is a partial sectional view along line AA' in Fig. 1, and Figs. 3, 4, and 5 are other embodiments. FIG. 6 is a circuit configuration diagram, and FIG. 7 is a signal waveform diagram. 2... Rotating part, 3... Fixed part, 4... Rotor core, 5... Stator core, 6... LED ring, 7...
...PT Kling 8.9... Coil, 12... Light receiving element, 13... Light emitting element, 14... Groove, 19...
Encoder, 20...Decoder, N7...Oscillation circuit, 30...Modulation circuit, 31st 21st 6 4-th 30th 4th % 5I21I 6th low direct charger 7 Fig.
Claims (1)
部は軸と一体に回転可能に取付けられ次磁性体からなる
ｂ筒状のヨークを令し、固定部は前記回転部とわずかの
隙間をおいて前記円筒状ヨークと対向する磁性体からな
る円筒状のヨークを有しており、前記回転部、固定部の
ヨーク内にそれぞれコイルを固定し、かつリング状＃１
１−有するリング状部材を前記回転部ま友は固定部の一
方のヨーク内にはめ込み、＃記すング状部材の溝に微小
の隙間をおいて対向するリング状部材を前記他方のヨー
ク内にはめ込み、前記回転部ヨーク内にはめ込んだリン
グ状部材の一部に発光素子を取付け、前記他方のヨーク
内にはめ込んだリング状部材の一部に前記発光素子と対
向するように受光素子を取付けたことｔ％黴とする回転
部の信号伝送装置。 ２、前記特許請求の範囲第１項において、前記リング状
部材をはめ込み方式にし、プレスまたは成形によシ製造
することを％黴とする回転部の信号伝送装置。[Claims] 1. In a signal transmission device between a rotating part and a fixed part, the rotating part has a cylindrical yoke made of a magnetic material that is rotatably attached to the shaft, and the fixed part has a cylindrical yoke made of a magnetic material. It has a cylindrical yoke made of a magnetic material that faces the cylindrical yoke with a slight gap from the rotating part, and a coil is fixed in the yoke of the rotating part and the fixed part, respectively, and a ring-shaped yoke is provided. #1
1- Fit the ring-shaped member having the rotating part into one yoke of the fixed part, and fit the opposing ring-shaped member with a small gap in the groove of the ring-shaped member marked with # into the other yoke. , a light-emitting element is attached to a part of the ring-shaped member fitted into the rotating part yoke, and a light-receiving element is attached to a part of the ring-shaped member fitted into the other yoke so as to face the light-emitting element. Signal transmission device for rotating parts with t% mold. 2. The signal transmission device for a rotating part according to claim 1, wherein the ring-shaped member is an inset type and manufactured by pressing or molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57028825A JPS58147249A (en) | 1982-02-26 | 1982-02-26 | Signal transmitter of rotary part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57028825A JPS58147249A (en) | 1982-02-26 | 1982-02-26 | Signal transmitter of rotary part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58147249A true JPS58147249A (en) | 1983-09-02 |
Family
ID=12259165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57028825A Pending JPS58147249A (en) | 1982-02-26 | 1982-02-26 | Signal transmitter of rotary part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58147249A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60142151U (en) * | 1984-03-02 | 1985-09-20 | 株式会社東海理化電機製作所 | Steering signal transmission device |
| JPS60206334A (en) * | 1984-03-30 | 1985-10-17 | Agency Of Ind Science & Technol | Signal transmitting device between rotating body and stationary body |
| JPS60254400A (en) * | 1984-05-31 | 1985-12-16 | 株式会社豊田中央研究所 | Telemetering unit |
| FR2567082A1 (en) * | 1984-07-06 | 1986-01-10 | Honda Motor Co Ltd | SWITCHING DEVICE ON THE STEERING WHEEL OF A VEHICLE |
| JPS62223710A (en) * | 1986-03-26 | 1987-10-01 | Ocean Cable Co Ltd | Rotary connector for optical fiber cable |
| JPS63124009A (en) * | 1986-11-13 | 1988-05-27 | Tatsuta Electric Wire & Cable Co Ltd | Multicore optical rotary connector |
| JPH0478699U (en) * | 1990-11-16 | 1992-07-09 |
-
1982
- 1982-02-26 JP JP57028825A patent/JPS58147249A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60142151U (en) * | 1984-03-02 | 1985-09-20 | 株式会社東海理化電機製作所 | Steering signal transmission device |
| JPS60206334A (en) * | 1984-03-30 | 1985-10-17 | Agency Of Ind Science & Technol | Signal transmitting device between rotating body and stationary body |
| JPH0316050B2 (en) * | 1984-03-30 | 1991-03-04 | Kogyo Gijutsuin | |
| JPS60254400A (en) * | 1984-05-31 | 1985-12-16 | 株式会社豊田中央研究所 | Telemetering unit |
| FR2567082A1 (en) * | 1984-07-06 | 1986-01-10 | Honda Motor Co Ltd | SWITCHING DEVICE ON THE STEERING WHEEL OF A VEHICLE |
| JPS62223710A (en) * | 1986-03-26 | 1987-10-01 | Ocean Cable Co Ltd | Rotary connector for optical fiber cable |
| JPH0435729B2 (en) * | 1986-03-26 | 1992-06-12 | Ocean Cable Co Ltd | |
| JPS63124009A (en) * | 1986-11-13 | 1988-05-27 | Tatsuta Electric Wire & Cable Co Ltd | Multicore optical rotary connector |
| JPH0478699U (en) * | 1990-11-16 | 1992-07-09 |
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