528697 五、發明說明（1) [發明所屬之技術領域] 本發明有關於電動輔助式腳踏車之電源裝置，特別有 關於在具有再生功能之電動輔助式腳踏車之使用有雙層 電容器之電源裝置。 [習知技術] 電動輔助式腳踏車被構建成爲具備有2個之驅動力， 其中之一個是利用來自踏板之驅動力，經由鍊條傳達到 箱體之旋轉側，用以使車輪旋轉之驅動力，另外一個是 檢測施加在踏板之轉矩，利用與該轉矩相同大小之轉矩 使馬達旋轉，經由減速機構驅動車輪。 此種電動輔助式腳踏車有各種提案，均是在驅動部設 置馬達，其目的是達成其構造之小型化和重量減輕，使 驅動馬達高速化，經由齒輪或滑輪進行減速，藉以獲得 所需要之轉矩。 另外，當驅動部和輪胎部經由鍊條和單向離合器連 結，和在輪胎部設有驅動馬達之情況時，亦設置減速機 構。 [發明所欲解決之問題] 習知之電動輔助式腳踏車因爲均需設置減速機構，所 以不能獲得簡潔之機構，需要大幅的變更一般腳踏車之 基本構造，所以成本變高，而且由於齒輪等之減速機構 使損失變大，所以電池之壽命變短，在沒有被充電在電 池之電壓之情況時，駕駛腳踏車變得費力。 因此，爲著要能夠長距離行走，電池容量需要很大等 528697 五、發明說明（2) 爲其問題。 本發明之目的是提供電源裝置’可以使電池之重量減 輕，和壽命變長，可以在短時間內充電完成。 [解決問題之手段] 本發明之第1態樣是一種電動輔助式腳踏車之電源裝 置，具備有電力變換裝置’被構建成爲可以使電源和驅 動馬達之間之電流方向’正逆方向的流動’其特徵是： 使該驅動馬達成爲外轉子型之永久磁鐵式同步馬達’ 和使該電源成爲電雙層電容器。 本發明之第2態樣是使備用電源與該電雙層電容器並 聯連接，該備用電源容量小於電雙層電容器容量’作爲 輔助電源，在該輔助電源和該電雙層電容器之間’設有 由電抗器和開關元件構成之升壓電路。 本發明之第3態樣是使該腳踏車至少在5km/h以下速 度其輔助率爲1 . 0以上。 [發明之實施例] 第1圖表示本發明之實施例1。符號1是成爲腳踏車 之電源之電雙層電容器，2是充電裝置，該充電裝置2 由整流器3 (由二極體D1〜D4構成）、平滑用電容器4 、開關元件5、電抗器6和二極體7構成。在充電時， 將該充電裝置2連接在商用之交流電源AC和雙層電容 器1之兩端C、C間，用來使充電電流經由整流器3、 開關元件5、和電抗器6流入到電雙層電容器1，藉以 使電容器1被充電。電容器1之兩端經由圖中未顯示之 528697 五、發明說明（3) 電力變換裝置連接到輔助馬達。 電雙層電容器1例如積層12片之300F，2.7V者構成 爲25F，32.4V，充電在電容器之直流電壓被電力變換裝 置變換成爲交流後，成爲24V交流電壓施加到輔助馬 達。 符號8是備用電源，該電源8不是必要者，具有：補 助電源9，由鉛電池構成，所具有之容量小於電容器1 之電壓；電抗器1 0 ;開關元件1 1、1 2 ;二極體D，成爲 與開關元件1 2反並聯連接；和分流電阻S Η。另外，其 中之電抗器1 0和開關元件1 1形成升壓電路。該升壓電 路在補助電源9爲24V時可以不需要，但是當使補助電 源9之容量減小藉以使重量減輕時，最好具備有有該升 壓電路較有利。 在腳踏車一起裝載電雙層電容器i和該備用電源8以 及後面所述之馬達，在充電時於連接器C、C之部份， 與充電裝置2連接藉以進行充電，在行走時利用該連接 器C、C之部份互相分離。 在電容器1被充電之狀態，使電動輔助式腳踏車運轉 行走時’在平地或爬坡時等，馬達變成爲驅動狀態，在 馬達驅動時，利用電雙層電容器1對馬達供給電力。當 電容器1之電壓降低時，經由Ο N / 0 F F控制形成升壓電 路之開關元件，可以使2 A之電流從電池9流入到電容 器1用來進行充電’藉以使電容器1之電壓保持在24〜 30V。 528697 五、 發明說明 ( 4) 當 腳 踏 車 下 坡 時 ，或施加制動之狀態時，馬達變成爲 發 電 機 > 用 來 產 生 電壓。在馬達成爲再生狀態時，電流 流 入 到 電 雙 層 電 容 器1，對該電容器1進行充電。 亦 即 電 雙 層 電 谷益1在馬達驅動時供給電力，在再 生 時 被 充 電 但 是 一般是供給狀態較多，所以電容器1 之 電 壓 逐 漸 下 降 y 變成爲要求充電之狀態。 在 充 電 時 使 電 容 器1經由連接器C、C連接到100V 之 交 流 電 源 AC 使開關元件5進行ON用來對雙層電容 器 1 充 電 〇 這 時 當電谷益1之谷星成爲上述之25F/ 32 .4V時 ，經 由施加100V電壓，以5A對電容器充電， 當 開 關 元 件 5 之 開 關頻率爲大約40kHZ，以30V之充電 電 壓 進 行 充 電 時 達到30V之時間可以成爲150sec程 度 ， 在 短 時 間 內 完 成充電。 在 此 處 當 連 接 有 備用電源8之情況時，利用圖中未顯 示 之 檢 測 器 檢 測 電雙層電容器1之電壓之變成爲30V 控 制 該 開 關 元 件 1 2，經由電抗器1 0對輔助電源9進 行 充 電 〇 這 時 之 充 電電流爲2A程度，以定電流充電， 例 如 在 達 到 28 V 時 結束充電。 另 外 y 輔 助 電 源 8之充放電電流之積利用與鉛電池串 聯 連 接 之 分 流 電 阻 SH檢測，用來進行放電率監視。 在 連 接 有 該 備 用 電源8之情況，腳踏車之行走中電雙 層 電 容 器 1 進 行 放 電，當其電位降低時，經由ON/OFF 控 制 與 電 抗 器 10 - -起形成升壓電路之開關元件1 1，用 來 對 電 容 器 1 充 電 ，藉以使該電容器電壓保持在24〜30 -6 - 528697 五、發明說明（5)v 〇 亦即，經由使開關元件1 1進行ON，利用輔助電源9 ，使電流在電抗器1 〇、開關元件1 1和分流電阻S Η之 路徑流動。在該放電途中經由使開關元件11進行OFF ，利用被儲存在電抗器1 0之能量升壓，使電流在電抗 器1 〇、二極體D1、電雙層電容器1、分流電阻SH和輔 助電源9之路徑流動，藉以對電容器1充電。 第2圖表示另一實施例，在第1圖之電路追加電壓保 持電路1 3。該電壓保持電路1 3具有電抗器1 4、開關元 件1 5、1 6、與開關元件1 6反並聯連接之二極體D和電 容器18。 另外，利用電抗器1 4和開關元件1 5構成升壓電路， 具有與備用電源8之升壓電路同樣之功能。 在本實施例中，當電雙層電容器1之充電時，經由控 制開關元件1 6用來進行充電。 在電雙層電容器1和電容器1 8被充電之狀態，當對 電動輔助馬達供給電力時，由於電容器1 8之電荷之放 電使電容器18之電壓降低。這時，爲著使電容器18之 電壓保持爲一定，經由對開關元件1 5進行ON控制，在 電抗器1 4使電流在電容器1、電抗器1 4、和開關元件 1 5之路徑流動。在有該電流流動之狀態，當使開關元件 1 5進行O F F時，利用被儲存在電抗器之能量，在電抗 器14、二極體17、電容器18和電容器1之路徑，對電 容器18進行充電，用來提高該電容器18之電壓使其保 528697 五、發明說明（6) 持在一定之値。該動作在驅動輔助馬達之期間進行。 當腳踏車變爲下坡，其行走速度被加速，超過腳踏車 之設定速度時，輔助馬達進行發電機之動作，電力變換 裝置進行變換器之動作，將交流變換成爲直流，對電容 器18進行充電，用來使電容器電壓上升。 當電容器電壓上升時，開關元件1 6進行ON動作，經 由電抗器14對電雙層電容器1充電。該動作進行至電 容器18之電壓成爲設定値，電容器1之充電電力成爲 電動腳踏車之制動力。 但是，此處是假定只利用電雙層電容器1之充電電壓 不能保持電容器1 8之電壓之情況。例如，在腳踏車於 長坡道進行爬坡行走之情況，電容器1之電壓變成極端 的降低，不能保持驅動力。在此種情況，與第1圖同樣 的經由控制開關元件1 1，用來對電容器1充電。 第3圖表示電動輔助腳踏車之輔助率和行走速度之關 係。如虛線所示，迄時速1 5 k m之輔助率爲1，在1 5〜 24km成爲漸減，在24km以上其輔助率變成爲零。 第4圖表示體重60kg之人以腳踏車在坡道行走時之 必要驅動力和在平坦路行走時之必要驅動力之比，坡道 行走時之必要驅動力大時，人之負擔就大當可理解。 在電動輔助腳踏車必需使該負擔減輕’和有效的消耗 電池能量。在此處之綜合驅動力以下式表示。 綜合驅動力=人力驅動力+輔助驅動力 二人力驅動力（1 +輔助率） 528697528697 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a power supply device for an electric-assisted bicycle, and more particularly to a power supply device having a double-layer capacitor in an electric-assisted bicycle with a regenerative function. [Known technology] The electric assisted bicycle is constructed to have two driving forces, one of which is the driving force transmitted from the pedal to the rotating side of the case via a chain, and the driving force for rotating the wheel, The other is to detect the torque applied to the pedal, use the same torque as the torque to rotate the motor, and drive the wheels through the reduction mechanism. There are various proposals for this type of electric assisted bicycle, which are provided with a motor in the driving part. The purpose is to achieve miniaturization and weight reduction of the structure, increase the speed of the driving motor, and reduce the speed through gears or pulleys to obtain the required rotation. Moment. In addition, when the driving part and the tire part are connected via a chain and a one-way clutch, and when a driving motor is provided in the tire part, a reduction mechanism is also provided. [Problems to be Solved by the Invention] Since the conventional electric assisted bicycles all need to be provided with a speed reduction mechanism, a simple mechanism cannot be obtained, and the basic structure of a general bicycle needs to be greatly changed, so the cost becomes high, and the speed reduction mechanism of gears and the like The loss is increased, so the battery life is shortened, and driving the bicycle becomes laborious when it is not charged to the battery voltage. Therefore, in order to be able to walk long distances, the battery capacity needs to be large. 528697 V. Description of the invention (2) is its problem. The object of the present invention is to provide a power supply device 'which can reduce the weight of the battery and have a longer life, and can be charged in a short time. [Means for Solving the Problem] A first aspect of the present invention is a power supply device for an electric-assisted bicycle, which is provided with a power conversion device 'constructed so that the direction of current flow between the power source and the drive motor is' forward and reverse flow' It is characterized by making the drive motor a permanent magnet synchronous motor of the outer rotor type and making the power source an electric double-layer capacitor. According to a second aspect of the present invention, a backup power source is connected in parallel with the electric double-layer capacitor, and the capacity of the backup power source is smaller than the capacity of the electric double-layer capacitor 'as an auxiliary power source, provided between the auxiliary power source and the electric double-layer capacitor' Booster circuit composed of reactor and switching element. A third aspect of the present invention is that the assist rate of the bicycle is 1.0 or more at a speed of at least 5 km / h. [Embodiment of Invention] Fig. 1 shows Embodiment 1 of the present invention. Reference numeral 1 is an electric double-layer capacitor serving as a power source for a bicycle, and 2 is a charging device. The charging device 2 is composed of a rectifier 3 (consisting of diodes D1 to D4), a smoothing capacitor 4, a switching element 5, a reactor 6, and two. The polar body 7 is formed. When charging, the charging device 2 is connected between the commercial AC power source AC and the two ends C and C of the double-layer capacitor 1 to make the charging current flow into the electric double via the rectifier 3, the switching element 5, and the reactor 6. The layer capacitor 1 is used to charge the capacitor 1. The two ends of the capacitor 1 are connected to the auxiliary motor via the 528697 which is not shown in the figure. 5. Description of the invention (3) The power conversion device. The electric double-layer capacitor 1 is composed of 12 sheets of 300F and 2.7V, which are constituted as 25F and 32.4V. The DC voltage charged in the capacitor is converted into AC by the power conversion device, and then a 24V AC voltage is applied to the auxiliary motor. Symbol 8 is a backup power source. This power source 8 is not necessary. It has: an auxiliary power source 9 composed of a lead battery with a capacity smaller than that of the capacitor 1; a reactor 1 0; a switching element 1 1 and 1 2; a diode. D is connected in antiparallel with the switching element 12; and the shunt resistor S Η. In addition, the reactor 10 and the switching element 11 form a booster circuit. This booster circuit may not be necessary when the auxiliary power source 9 is 24V, but it is advantageous to have the booster circuit when the capacity of the auxiliary power source 9 is reduced to reduce weight. The electric bicycle is equipped with an electric double-layer capacitor i, the backup power source 8 and a motor described later, and the connectors C and C are connected to the charging device 2 for charging during charging, and the connector is used when walking. C and C are separated from each other. When the capacitor 1 is charged, the electric-assisted bicycle is driven. The motor is driven when the vehicle is on a flat ground or a hill. When the motor is driven, the electric double-layer capacitor 1 is used to supply power to the motor. When the voltage of capacitor 1 decreases, the switching element of the boost circuit is controlled by 0 N / 0 FF, so that a current of 2 A can flow from battery 9 to capacitor 1 for charging, thereby keeping the voltage of capacitor 1 at 24 ~ 30V. 528697 V. Description of the invention (4) When the bicycle goes downhill or when the brake is applied, the motor becomes a generator > used to generate voltage. When the motor is in a regenerative state, a current flows into the electric double-layer capacitor 1 and the capacitor 1 is charged. That is, the electric double-layer electricity Gu Yi 1 supplies power when the motor is driven and is charged when it is regenerated, but generally there are many supply states, so the voltage of capacitor 1 gradually decreases and y becomes a state requiring charging. During charging, the capacitor 1 is connected to a 100V AC power source AC via the connectors C and C. The switching element 5 is turned on to charge the double-layer capacitor 1. At this time, the valley star of the electric valley 1 becomes the 25F / 32 described above. At 4V, the capacitor is charged at 5A by applying a voltage of 100V. When the switching frequency of the switching element 5 is about 40kHZ and the charging time is 30V, the time to reach 30V can become 150sec, and the charging can be completed in a short time. Here, when the backup power source 8 is connected, the voltage of the electric double-layer capacitor 1 is detected by a detector not shown in the figure to change the voltage of the electric double-layer capacitor 1 to 30V, and the switching element 12 is controlled, and the auxiliary power source 9 is conducted through the reactor 10 Charging: At this time, the charging current is about 2A, and the charging is performed at a constant current. For example, the charging is terminated when it reaches 28 V. In addition, the product of the charge and discharge current of the auxiliary power source 8 is detected by the shunt resistance SH connected in series with the lead battery for monitoring the discharge rate. When the backup power source 8 is connected, the electric double-layer capacitor 1 is discharged while the bicycle is running. When the potential decreases, the ON / OFF control and the reactor 10 are used to form a switching element 11 of the boost circuit. It is used to charge the capacitor 1 so as to keep the voltage of the capacitor between 24 and 30 -6-528697. 5. Description of the Invention (5) v 〇 That is, by turning on the switching element 11 and using the auxiliary power source 9 to make the current in The paths of the reactor 10, the switching element 11 and the shunt resistor S 流动 flow. During this discharge, the switching element 11 is turned off, and the energy stored in the reactor 10 is used to boost the current, so that the current in the reactor 10, the diode D1, the electric double-layer capacitor 1, the shunt resistor SH, and the auxiliary power source are increased. The path of 9 flows to charge the capacitor 1. Fig. 2 shows another embodiment in which a voltage holding circuit 13 is added to the circuit of Fig. 1. The voltage holding circuit 13 includes a reactor 14, switching elements 15, 16, a diode D connected in antiparallel to the switching element 16, and a capacitor 18. The booster circuit is constituted by the reactor 14 and the switching element 15, and has the same function as the booster circuit of the backup power source 8. In the present embodiment, when the electric double-layer capacitor 1 is charged, it is charged via the control switching element 16. In a state where the electric double-layer capacitor 1 and the capacitor 18 are being charged, when the electric auxiliary motor is supplied with electric power, the voltage of the capacitor 18 decreases due to the discharge of the electric charge of the capacitor 18. At this time, in order to keep the voltage of the capacitor 18 constant, the ON / OFF control of the switching element 15 causes a current to flow through the path of the capacitor 1, the reactor 14, and the switching element 15 through the reactor 14. In the state where this current flows, when the switching element 15 is turned off, the energy stored in the reactor is used to charge the capacitor 18 in the path of the reactor 14, the diode 17, the capacitor 18, and the capacitor 1. It is used to increase the voltage of the capacitor 18 to keep it 528697. V. Description of the invention (6) Keep it at a certain level. This operation is performed while the auxiliary motor is being driven. When the bicycle becomes downhill, its walking speed is accelerated and exceeds the set speed of the bicycle, the auxiliary motor performs the operation of the generator, the power conversion device performs the operation of the converter, converts AC to DC, and charges the capacitor 18 with To increase the capacitor voltage. When the capacitor voltage rises, the switching element 16 is turned on, and the electric double-layer capacitor 1 is charged by the reactor 14. This operation is performed until the voltage of the capacitor 18 becomes the set value, and the charging power of the capacitor 1 becomes the braking force of the electric bicycle. However, it is assumed here that the voltage of the capacitor 18 cannot be maintained using only the charging voltage of the electric double-layer capacitor 1. For example, when the bicycle is climbing up a long slope, the voltage of the capacitor 1 becomes extremely low, and the driving force cannot be maintained. In this case, the capacitor 1 is charged via the control switching element 11 as in the first figure. Fig. 3 shows the relationship between the assist rate and the walking speed of the electric assist bicycle. As shown by the dashed line, the assist rate at 15 km per hour is 1, which decreases gradually from 15 to 24 km, and the assist rate becomes zero above 24 km. Figure 4 shows the ratio of the necessary driving force of a person weighing 60kg when walking on a slope with a bicycle and the necessary driving force when walking on a flat road. When the necessary driving force when walking on a slope is large, the burden on the person is large. understanding. In electric assist bicycles, it is necessary to reduce this burden 'and to effectively consume battery energy. The overall driving force here is expressed by the following formula. Comprehensive driving force = human driving force + auxiliary driving force Two human driving forces (1 + auxiliary rate) 528697
五、發明說明（7) 使輔助馬達之驅動力成爲平坦路行走驅動力之6倍之 情況時之輔助率以第5圖表示。在此種情況，最大綜合 驅動力因爲可以使人力驅動力成爲平坦路驅動力之倍數 ，所以最大驅動力=2(1+3) = 8倍。 從第4圖變成爲利用平坦路行走時之倍數之踏入力可 以行走7.3度之坡道。 另外一方面，以電池之消耗量來看時，當馬達產生轉 矩爲r ’馬達轉速爲N時，馬達消耗能量p變成爲： P = k τ N 亦即，轉速變低時，消耗能量亦變小。考慮到此點的進 行控制時，利用第3圖之實線所示之輔助率之控制，可 以使電池之消耗能量有效的利用，特別是在上坡路之腳 踏車起動時，可以輕鬆的行走。 此處之使輔助率3之範圍成爲5 km/h以下之理由是考 慮到確保腳踏車之適用範圍時，在平坦路以1 5km/h之 速度行走時之消耗能量，可以在7.3度之坡道以5km/h 之速度進行爬坡。另外，在行走速度爲15 km/h以上之 減輔助區域，當使人力驅動力成爲零，進行制動操作時 ，保持其速度的進行再生運轉，以電池吸收制動能量的 進行充電，可以防止下坡之高速行走，藉以確保安全。 第6圖表示包含可再生制動之輔助馬達之驅動部，該 驅動部被設置在腳踏車之後輪。 在該圖中，符號2 0是車軸，2 1是嵌合在車軸之軸承 ，在其外側經由離合器22安裝有成爲一體之鏈輪23成5. Description of the invention (7) The assist rate when the driving force of the auxiliary motor is 6 times the driving force of the flat road is shown in Fig. 5. In this case, because the maximum comprehensive driving force can make the human driving force a multiple of the driving force of the flat road, the maximum driving force = 2 (1 + 3) = 8 times. From Figure 4, it is possible to walk on a slope of 7.3 degrees with multiple stepping forces when walking on a flat road. On the other hand, when looking at the consumption of the battery, when the motor generates torque r 'and the motor speed is N, the motor energy p becomes: P = k τ N That is, when the speed becomes low, the energy consumption also decreases. Get smaller. Considering this point, when using the assist ratio control shown in the solid line in Figure 3, you can effectively use the battery's energy consumption, especially when starting on a hill on a treadmill, you can easily walk. The reason for making the range of the assist rate 3 below 5 km / h is to consider the energy consumption when walking on a flat road at a speed of 15 km / h when ensuring the applicable range of the bicycle, which can be on a slope of 7.3 degrees Climbing at 5km / h. In addition, in the reduced assist area with a walking speed of 15 km / h or more, when the human driving force is made zero and the braking operation is performed, the regeneration operation is maintained at its speed, and the battery absorbs the braking energy for charging, which can prevent downhill High-speed walking to ensure safety. Fig. 6 shows a drive unit including an auxiliary motor for regenerative braking, and the drive unit is provided on the rear wheel of the bicycle. In the figure, reference numeral 20 is an axle, and 21 is a bearing fitted to the axle, and an integral sprocket 23% is mounted on the outside via a clutch 22
528697 五、發明說明（8) 爲可自由轉動之方式。在該鏈輪2 3張掛有與踏板連動 之鍊條（圖式省略）。符號24是第2接頭，形成爲圓 盤狀而且具有中空部，其一部份連結到離合器2 2，在其 外側設有輪輻孔2 5之安裝有車輪之輪輻。在接頭2 4之 中空部內設有延伸之支持板26被固定在車軸20，沿著 其前端圓周設置固定子鐵心2 7，在該固定子鐵心2 7捲 繞有線圈28。固定子鐵心27成爲轉子，經由間隙G， 沿著內周以N、S極交替之方式配置永久磁鐵2 9。利用 該27〜29構成外轉子型之永久磁鐵式同步馬達。 符號3 0是印刷電路板，在該印刷電路板3 0組裝有第 1圖或第2圖所示之備用電源或電壓保持電路和電力變 換裝置之電子零件，和被螺栓等固定在支持板26。符號 3 1是第1接頭，被固定在離合器22之側面，而且與第 2接頭24之間存在有彈性接頭32。33是被設在支持板 26之霍爾元件，在與該霍爾元件33面對之第1接頭31 設有磁鐵，用來進行A相用之位置檢測。3 4是B相用 位置檢測之磁鐵。3 5、3 6分別爲軸承。 以第6圖之方式構成之驅動部，經由踏入踏板用來將 驅動力傳達到鏈輪23，離合器22和第2接頭24，該等 被各個軸承2 1、3 5、3 6支承的進行旋轉。利用該旋轉 用來使被固定在接頭24之永久磁鐵29亦進行旋轉，利 用進行旋轉之永久磁鐵29和固定子線圈28之間所產生 之吸引力和排斥力，依照轉子位置用來變換在固定子線 圈2 8流動之電流方向，藉以使旋轉繼續。 -10- 528697 五、發明說明（9) [發明之效果] 如上所述，依照本發明時，電動輔助腳踏車之主電源 使用電雙層電容器，可以獲得重量變輕，壽命變長，而 且可以以短時間充電之輔助腳踏車。 經由使用作爲主電源之雙層電容器和輔助電源，可以 使該輔助電源之容量變小，這時充電裝置之充電間隔變 長，而且驅動馬達使用外轉子型之永久磁鐵式同步馬達 ，可以不需要減速機構，可以以極少之損失將驅動力傳 達到輪胎，而且以可再生制動之電源充電，所以即使是 小容量亦可以進行長距離之行走。 另外，腳踏車之行走範圍（至少爲5km/h以下）之輔 助率，經由成爲通常輔助率1 · 0以上，可以以低消耗能 量進行上坡路等之起動。 [圖面之簡單說明] 第1圖是電路構造圖，用來表示本發明之實施例。 第2圖是電路構造圖，用來表示本發明之另一實施 例。 第3圖是輔助率一特性圖。 第4圖是對平坦路驅動力比一坡度特性圖。 第5圖是輔助率一對平坦路驅動力比特性圖。 第6圖是驅動部之構造圖。 [元件編號之說明] 1···電雙層電容器 2···充電裝置 -11- 528697 五、發明說明（1〇) 3…整流器 4、 1 8…電容器 5、 1 1、12、15、16…開關元件 6、 10、14…電抗器 7…二極體 8…備用電源 9…輔助電源 13…電壓保持電路528697 V. Description of the invention (8) It is a freely rotating way. Two or three chain wheels are linked to the pedals (not shown). Numeral 24 is a second joint, which is formed in a disc shape and has a hollow portion, a part of which is connected to the clutch 22, and a spoke on which a wheel is mounted is provided with a spoke hole 25 on the outside. An extension supporting plate 26 is fixed to the axle 20 in the hollow portion of the joint 24, and a stator core 27 is provided along the circumference of the front end of the joint. A coil 28 is wound around the stator core 27. The stator core 27 serves as a rotor, and the permanent magnets 29 and 9 are alternately arranged along the inner periphery via the gap G along the inner periphery. These 27 to 29 constitute an outer rotor type permanent magnet synchronous motor. Reference numeral 30 denotes a printed circuit board. The printed circuit board 30 is assembled with a backup power source or voltage holding circuit and electronic components of the power conversion device shown in FIG. 1 or FIG. 2, and is fixed to the supporting board 26 by bolts or the like. . Reference numeral 31 is a first joint, which is fixed to the side of the clutch 22, and an elastic joint 32 is provided between the second joint 24. 33 is a Hall element provided on the support plate 26, and the Hall element 33 The facing first joint 31 is provided with a magnet for detecting the position of phase A. 34 is a magnet for position detection for phase B. 3 5, 3 6 are bearings. The driving unit configured as shown in FIG. 6 transmits the driving force to the sprocket 23, the clutch 22, and the second joint 24 by stepping on the pedal. These are supported by the bearings 2 1, 3 5, 3, 6 Spin. The rotation is used to rotate the permanent magnet 29 fixed to the joint 24, and the attractive force and repulsive force generated between the rotating permanent magnet 29 and the stator coil 28 are used to change the fixed position according to the rotor position. The direction of the current flowing through the sub-coils 28 causes rotation to continue. -10- 528697 V. Description of the invention (9) [Effect of the invention] As mentioned above, according to the present invention, the electric double-layer capacitor is used as the main power source of the electric auxiliary bicycle, which can reduce the weight, increase the life, and can A short-time charging auxiliary bicycle. By using double-layer capacitors and auxiliary power as the main power source, the capacity of the auxiliary power source can be reduced. At this time, the charging interval of the charging device becomes longer, and the drive motor uses an outer rotor type permanent magnet synchronous motor, which does not require deceleration The mechanism can transmit the driving force to the tire with very little loss, and it is charged with the power of regenerative braking, so it can carry long distance walking even with small capacity. In addition, the assist rate of the walking range of the bicycle (at least 5km / h or less) can be used to start uphill roads with low energy consumption through the normal assist rate of 1.0 or more. [Brief Description of the Drawings] FIG. 1 is a circuit configuration diagram showing an embodiment of the present invention. Fig. 2 is a circuit configuration diagram showing another embodiment of the present invention. Fig. 3 is a characteristic diagram of assist ratio. Fig. 4 is a graph showing a gradient characteristic of a driving force ratio to a flat road. FIG. 5 is a characteristic diagram of the driving force ratio of a flat road with an assist ratio. Fig. 6 is a structural diagram of a driving unit. [Explanation of component number] 1 ·· Electric double layer capacitor 2 ··· Charging device-11- 528697 V. Description of the invention (1〇) 3 ... Rectifier 4, 1 8 ... Capacitor 5, 1 1, 12, 15, 16 ... switching elements 6, 10, 14 ... reactor 7 ... diode 8 ... standby power source 9 ... auxiliary power source 13 ... voltage holding circuit
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