JPS61110682A

JPS61110682A - Luminaire for bicycle

Info

Publication number: JPS61110682A
Application number: JP59232764A
Authority: JP
Inventors: 一弘友重
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 1984-11-05
Filing date: 1984-11-05
Publication date: 1986-05-28

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】（イ）　産業上の利用分野本発明は自転車用照明装置に関する。[Detailed description of the invention] (b) Industrial application fields The present invention relates to a bicycle lighting device.

（ロ）従来の技術従来自転車の前照灯の照明装置は■車輪の回転に伴い発
電する発電機の起電圧を利用して行なうもの、■乾電池
によるものが一般的である。しかしながら、■の方式は
停車時や低速走行時無灯火となり安全対策上問題がある
。この為、二次電池を設けて発電機により充電しておき
、−停車時や低速走行時に二次電池の放電電流により点
灯するものも提案きれているが、発電機の負荷が増大し
、ペダルの回転が重くなり走行性が悪いという欠点があ
る。(b) Prior Art Conventional bicycle headlight lighting devices are generally one that uses the electromotive force of a generator that generates electricity as the wheel rotates, and one that uses dry batteries. However, the method (■) has safety problems because the lights go off when the vehicle is stopped or when driving at low speeds. For this reason, some proposals have been made to install a secondary battery and charge it with a generator, and then turn on the battery using the discharge current of the secondary battery when the vehicle is stopped or driving at low speeds, but this increases the load on the generator and the pedal The disadvantage is that the rotation becomes heavy and running performance is poor.

又、■の方式は一時停車時や低速走行時に方式■のよう
に前照灯を点灯できないと共にペダルの回転が重くなる
といった欠点は無いが、自転＋ｌ［には電池収納スペー
スが少ないことから電池のＩＦ脳に制限を受け、頻繁に
電池を交換しなければならず、不経済であると共に電池
交換を忘れると無灯火走行をせざるを得なくなり、危険
であり、更には電池を切り忘れると電池の無駄な消費を
生ずる等の欠点がある。In addition, method ■ does not have the drawbacks of method ■, such as not being able to turn on the headlights and making the pedal rotation heavier when temporarily stopped or driving at low speeds, but since there is little battery storage space in the Due to the limitations of the IF brain, the battery must be replaced frequently, which is uneconomical, and if you forget to replace the battery, you will be forced to drive without lights, which is dangerous. There are drawbacks such as unnecessary consumption of batteries.

（ハ）本発明が解決しようとする問題点本発明は上記の
欠点に留意し、一時停車時や低速走行時の安全性を保ち
、走行性を向上させると共に経済的な自転車用照明装置
を提供することを目的とする。(c) Problems to be Solved by the Present Invention The present invention takes the above-mentioned drawbacks into consideration and provides an economical bicycle lighting device that maintains safety during temporary stops and low-speed running, improves drivability, and is economical. The purpose is to

（ニ）　　問題点を解決するための手段本発明は前照灯
と、車輪の回転に伴い発電する発電機と、太陽光を受け
て発電する太陽電池と、二次電池を互いに並列接続する
と共に、前照灯と−次電池との間にスイッチ手段を介在
したことにより、Ｌ記問題点を解決したものである。(d) Means for solving the problem The present invention connects a headlamp, a generator that generates power as the wheels rotate, a solar cell that generates power by receiving sunlight, and a secondary battery in parallel with each other. , problem L is solved by interposing a switch means between the headlamp and the secondary battery.

〈ホ）　作用１：記の手段により、昼間スイッチ手段を０ＦＦ１　ｒ
太陽電池に充電しておき夜間走行時にはスイッチ手段を
ＯＮして走行すると二次電池には既に充電されているの
で発電機の負荷が少なく、ペダルが軽く走行性が向上す
ると共に一時停車時や＋１（連走行時は二次電池により
前照灯が点灯され安全性が向ヒする。(E) Effect 1: By the means described below, the daytime switch means is set to 0FF1 r
If you charge the solar battery and turn on the switch when driving at night, the secondary battery is already charged, so there is less load on the generator, the pedal is lighter, and driving performance is improved, and when you stop temporarily or (During continuous driving, the headlights are turned on by the secondary battery, improving safety.

くべ）実施例本発明の−・実施例を第１図及び第２図に従い説１１１
１する。（１）は前部に電球からなる前照灯〈２〉を尾
部に発光ダイオードからなる尾灯（３）をそれぞれ具備
した自転車で、前ホークには起倒自在に１起」位置で発
電せず、「倒ｊ位置で前輪（４）の回転により発電する
交流発電機（５）を備え、後輪（６）の泥除１ｊ（７）
には尾灯（３）を後方に向けて設けると共に、太陽光（
Ｓ）により発電する太陽電池（８）を−１；方に向けて
設けた尾灯ユニット（９）を装着している。Example) Examples of the present invention are described in accordance with FIGS. 1 and 2.
Do 1. (1) is a bicycle equipped with a headlight (2) consisting of a light bulb at the front and a taillight (3) consisting of a light emitting diode at the tail. , "Equipped with an alternator (5) that generates electricity by the rotation of the front wheels (4) in the inverted position, and a mudguard (7) for the rear wheels (6).
A tail light (3) is installed facing rearward, and sunlight (
A tail light unit (9) is installed with a solar cell (8) that generates electricity from S) facing in the -1; direction.

上記の前照灯（２）、尾灯（３）等は第１図の電気回路
に組まれ、尾灯３ニツ１〈９）内又は制御箱（図示しな
い）内に装着される。このＩＴｉ気回路を説明する。前
記太陽電池（８）と、二次電池（１０）と、前照灯（２
）と、発電機（５）とは互いに並列接続きれている。そ
して、太陽電池（８）と二゛−次電池（ｌＯ）との間に
は逆流防止用ダイオード（Ｄｌ）が介設され、二次電池
〈１０）と前照灯（２）との間にはＮＰＮトランジスタ
からなる第１スイッチング手段（Ｔ１）が介設され、前
照灯〈２）と発電機〈５〉との間にはスイッチング手段
（Ｔ１）と過１を流防止用特性サーミスタ（１１）と、
逆流防止用ダイオード（Ｄ２）と、ブリッジに接続され
たダイオード（Ｄ４）〜（Ｄｌ）よりなる全波整流器（
１２）とが介設され、二次電池〈１０）と発電機〈５）
との間にはサーミスタ（１１）、ダイオード（Ｄ３）、
余波整流器（１２）が介設されている。前記サーミスタ
（１１）は高速走行時において前照灯〈２）及び二次電
池（１０）に過電圧が印加されないように作用する。The above-mentioned headlight (2), taillight (3), etc. are assembled into the electric circuit shown in FIG. 1, and installed in the taillight 3 (9) or a control box (not shown). This ITi circuit will be explained. The solar cell (8), the secondary battery (10), and the headlamp (2)
) and the generator (5) are connected in parallel to each other. A backflow prevention diode (Dl) is interposed between the solar cell (8) and the secondary battery (lO), and a backflow prevention diode (Dl) is interposed between the secondary battery (10) and the headlight (2). A first switching means (T1) consisting of an NPN transistor is interposed, and a characteristic thermistor (11) for preventing overcurrent is installed between the headlight (2) and the generator (5). )and,
A full-wave rectifier consisting of a backflow prevention diode (D2) and diodes (D4) to (Dl) connected to the bridge
12) are interposed, and a secondary battery <10) and a generator <5)
A thermistor (11), a diode (D3),
A aftermath rectifier (12) is provided. The thermistor (11) acts to prevent overvoltage from being applied to the headlight (2) and the secondary battery (10) during high-speed driving.

（１３）は前記スイッチング手段（Ｔ１）を走行時ＯＮ
すると共に走行停止後遅延してＯＦＦするスＣ・・・・
ｆング手段制御回路で、フレフタが第１抵抗（Ｒ１）、
尾灯（３）を介して二次電池（１０）の正極に　ｙ、　
ミッタがスイッチング手段（Ｔ１）のベースに接続され
るＮＰＮトランジスタよりなる増幅用第２ス４　ツチン
グ手段（Ｔ２）と、一端が二次電池（ｌＯ）の負極に他
端が第２抵抗（Ｒ２）を介して第２スイッチング手段（
Ｔ２）のベースに接続される遅延用コンデンサ（Ｃ）と
、エミッタが二次電池（１０）の正極にフレフタが抵抗
（Ｒ２）及びコンデンサ（Ｃ）の接続点に接続きれベー
スが第３抵抗（Ｒ１）、ダイオード（Ｄ３）、全波整流
器（１２）を介して発電機（５）に接続されるＰＮＰ　
ｌ−ランジスタよりなる第３スイッチング手段（Ｔ３）
とからなる。(13) turns on the switching means (T1) when driving.
At the same time, it turns off with a delay after the vehicle stops running...
In the f-ing means control circuit, the frefter is a first resistor (R1),
y to the positive electrode of the secondary battery (10) via the tail light (3),
A second amplifying switch (T2) consisting of an NPN transistor whose transmitter is connected to the base of the switching means (T1), one end of which is connected to the negative electrode of the secondary battery (IO), and the other end of which is connected to the second resistor (R2). via the second switching means (
The delay capacitor (C) is connected to the base of T2), the emitter is connected to the positive electrode of the secondary battery (10), the flap is connected to the connection point of the resistor (R2) and the capacitor (C), and the base is connected to the third resistor (C). R1), a PNP connected to the generator (5) via a diode (D3) and a full-wave rectifier (12).
Third switching means (T3) consisting of an l-transistor
It consists of

次にＬ記実施例の動作を説明する。昼間自転車（１）を
日射を受ける場所に置くと、太陽電池（８）にて発電し
、これにより二次電池（１０）に充電される。この時発
電機（５）出力が零であり、第３スイツチング手段（Ｔ
ａ）ＯＦＦ％第２スイッチング手段（Ｔ　２　）ＯＦ　
Ｆで、第１スイッチング手段（Ｔ１）がＯＦＦしている
為、前照灯（２）は消灯しており、二次電池（１０）の
放電は無い、尚、ダイオード（Ｄ２）により（１０）→
〈Ｔ３）→（Ｒ３）→（１０）なるベース電流が阻止さ
れスイッチング手段（Ｔ３）はＯＮＬ、ない。Next, the operation of the embodiment L will be explained. When the bicycle (1) is placed in a place that receives sunlight during the day, the solar cell (8) generates electricity, which charges the secondary battery (10). At this time, the output of the generator (5) is zero, and the third switching means (T
a) OFF% second switching means (T 2 ) OFF
At F, the first switching means (T1) is OFF, so the headlight (2) is off and the secondary battery (10) is not discharged. →
The base current of <T3)→(R3)→(10) is blocked and the switching means (T3) is ONL.

次に夜間走行に入ると、発電ｍ（５）にて発電し、この
起電圧が全波整流器（１２）Ｇこて１１流され、これが
第３スイッチング手段（Ｔ３）のベースに印加されてＯ
ＮＬ、コンデンサ（Ｃ）に瞬時充電きれると共に、第２
スイッチング手段（Ｔ２）がＯＮして尾灯（３）が点灯
し、第１スイッチング手段（Ｔ１）がＯＮＬ、て前照灯
（２）が点灯する。Next, when driving at night, the generator m(5) generates electricity, and this electromotive voltage is passed through the full-wave rectifier (12) and the iron 11, and is applied to the base of the third switching means (T3).
NL, the capacitor (C) can be charged instantaneously, and the second
The switching means (T2) is turned on and the taillight (3) is turned on, and the first switching means (T1) is turned on and the headlight (2) is turned on.

この前照灯（２）及び尾灯（３）の点灯は車速が十分で
なく発電機（５）電圧が二次電池（１０）電圧よりも低
い時は二次電池（１０）によりなきれ、高くなると発電
機く５）によりなされる、勿論、二次電池（ｌＯ）の充
電が不足の時には発電機（５）により充電される。When the vehicle speed is not sufficient and the voltage of the generator (5) is lower than the voltage of the secondary battery (10), the headlights (2) and taillights (3) are turned off by the secondary battery (10), and the lights turn on. Of course, when the secondary battery (lO) is insufficiently charged, the generator (5) charges the secondary battery (lO).

中速が低下するか、又は停車すると、第３スＣツグング
手段〈Ｔ３）がＯＦＦするが、二次電池（１０）が充′
！ｌｔされているのでコンデンサ（Ｃ）の充電電荷によ
り第２、第３スイッチング手段（Ｔ２）（Ｔｓ）をＩツ
ｒ定時間〈例えば１分程度＞ＯＮを継続し、尾灯〈３）
及び前照灯（２）が二次電池（１０）により点灯する。When the medium speed decreases or the vehicle stops, the third switching means (T3) is turned off, but the secondary battery (10) is not charged.
! Since the capacitor (C) is charged, the second and third switching means (T2) (Ts) are kept ON for a certain period of time (for example, about 1 minute), and the tail light is turned off (3).
And the headlight (2) is turned on by the secondary battery (10).

従って、信号等で停止した時も安全性が向トする。Therefore, safety is improved even when the vehicle stops at a traffic light or the like.

こうし丁放電した二次電池（ｌＯ）は自転車の走行によ
る発を機（５）起電圧により充電される。The discharged secondary battery (lO) is charged by the electromotive force (5) caused by the bicycle running.

上記のｌｈ作において、二次電池（１０）が充電されて
いる時は二次電池（ｌＯ）により前照灯（２）が点灯す
るので、発電機（５）の負荷が少なく、ペダル走行が容
易となる。又、第２スイッチング手段（Ｔ２）のフレフ
タ抵抗として尾灯（３）を用いているので、ｓｒ　ｌ−
クタ電流（例えば数ｍＡ〜数十ｍＡ）を無駄に使うこと
なく尾灯く３）点灯に有効利用できる。又、低速走行又
は停車時の前照灯（２）の点灯時間が所定時間に限定さ
れているので、二次電池（１０）の無駄な消費がなく、
かつ過放電を防止できると共に、太陽電池（８）の小型
化及び二次電池（１０）の小型化が可能となる。In the above lh work, when the secondary battery (10) is charged, the headlight (2) is turned on by the secondary battery (10), so the load on the generator (5) is small and pedal running is reduced. It becomes easier. In addition, since the tail light (3) is used as the flap resistor of the second switching means (T2), sr l-
3) It is possible to effectively use the current (for example, several mA to several tens of mA) for lighting the taillight without wasting it. In addition, since the lighting time of the headlight (2) is limited to a predetermined time when driving at low speed or when the vehicle is stopped, there is no wasteful consumption of the secondary battery (10).
Moreover, over-discharge can be prevented, and the solar cell (8) and the secondary battery (10) can be made smaller.

尚、本発明は上記実施例に限定きれるものではなく、例
えば第３図の如くスイッチング手段（Ｔ）を手動スイッ
チ（Ｔｏ）に代えて手動操作するようにしても良い。即
ち、昼間はスイッチ（Ｔｏ）を０ＦＦＬ、て二次電池（
１０）に充電しておき、夜間走行時ＯＮする。又、第３
スイッチング手段〈Ｔ１）のＯＮ、ＯＦＦを発電機（５
）で行なっているが、別個に車速検出手段を設けてこれ
によりＯＮ、ＯＦＦするように構成できる。又、第１ス
イッチング手段（Ｔ１）のＯＮする車速は任意に設定可
能である。Incidentally, the present invention is not limited to the above-mentioned embodiment, and the switching means (T) may be manually operated instead of a manual switch (To) as shown in FIG. 3, for example. That is, during the day, the switch (To) is set to 0FFL, and the secondary battery (
10) Charge it and turn it on when driving at night. Also, the third
The ON/OFF of the switching means (T1) is controlled by the generator (5).
), but it is possible to provide a separate vehicle speed detection means and turn it on and off using this. Further, the vehicle speed at which the first switching means (T1) is turned on can be set arbitrarily.

（ト）効果上述の如く構成きれる本発明に依れば、太陽電池と発電
機により二次電池に充電して前照灯を点灯きせるので、
一時停止時や低速走行時も前照灯を点灯でき安全性を保
つことができると共に予め太陽電池により二次電池に充
電しておくことで発電機負荷を少なくして走行性を向上
きせることができる、又、太陽電池と二次電池のみで前
照灯を点灯さ七るものは前照灯を短時間しか点灯できな
いと共に長時間点灯による二次電池の過放電の虞れがあ
るのに対し、本発明によれば走行中は発電機により二次
電池を充電するので長時間点灯が可能となると共に二次
電池の過放電を減少できる等効果が大きい。(G) Effects According to the present invention configured as described above, the headlights can be turned on by charging the secondary battery using the solar cell and the generator.
The headlights can be turned on even when stopped or when driving at low speeds to maintain safety, and by pre-charging the secondary battery with solar cells, the load on the generator can be reduced and driving performance can be improved. In addition, if the headlights are turned on only by solar cells and secondary batteries, the headlights can only be turned on for a short period of time, and there is a risk of over-discharge of the secondary battery if the headlights are turned on for a long time. According to the present invention, since the secondary battery is charged by the generator while the vehicle is running, it is possible to turn on the vehicle for a long time, and the over-discharge of the secondary battery can be reduced.

【図面の簡単な説明】第１図は本発明一実施例の電気回路図、第２図は同実施
例を具備した自転車の側面図、第３図は本発明他の実施
例の電気回路図である。（２）・・前照灯、（５）・・・発電機、（８）・・・
太陽電池、〈１０）・・・二次電池、（Ｔ　１　）（Ｔ
　ｏ　）・・・スイッチング手段。[Brief Description of the Drawings] Fig. 1 is an electric circuit diagram of one embodiment of the present invention, Fig. 2 is a side view of a bicycle equipped with the same embodiment, and Fig. 3 is an electric circuit diagram of another embodiment of the present invention. It is. (2)...headlight, (5)...generator, (8)...
Solar cell, <10)... Secondary battery, (T 1 ) (T
o)...Switching means.

Claims

[Claims]

(1) A headlight and a generator that generates electricity as the wheels rotate,
A bicycle lighting device comprising a solar cell that generates electricity by receiving sunlight and a secondary battery connected in parallel with each other, and a switch means interposed between the headlamp and the secondary battery.