To enhance freedom in laying out components in a drive unit.SOLUTION: A drive unit (20) according to an embodiment is employed in a power-assisted bicycle (10). The drive unit (20) includes an electric motor (25), a housing (21) accommodating a part or the whole of the electric motor (25), a pedal crank shaft (22) that pierces the housing (21) and is rotatively supported by the housing (21), a transmission mechanism (40) that transmits a torque of the electric motor (25) to the pedal crank shaft (22), a rigid substrate (110) including an electric circuit (111) for use in activating the electric motor (25), and a flexible printed board (120) that electrically connects the rigid substrate (110) to predetermined components (110 and 130) other than the rigid substrate (110).SELECTED DRAWING: Figure 4

    【課題】駆動ユニット内の部品の配置の自由度を高める。【解決手段】ある実施形態に係る駆動ユニット(20)は、電動補助自転車(10)に用いられる駆動ユニット(20)であって、電動モータ(25)と、電動モータ(25)の一部または全部を収容するハウジング(21)と、ハウジング(21)を貫通し、ハウジング(21)によって回転可能に支持されるペダルクランク軸(22)と、電動モータ(25)のトルクをペダルクランク軸(22)に伝達する伝達機構(40)と、電動モータ(25)を動作させるための電気回路(111)が設けられたリジッド基板(110)と、リジッド基板(110)とリジッド基板(110)とは別の所定の部品(110、130)とを電気的に接続するフレキシブルプリント基板(120)とを備える。【選択図】図4


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    Title :

    DRIVE UNIT AND POWER-ASSISTED BICYCLE


    Additional title:

    駆動ユニットおよび電動補助自転車


    Contributors:

    Publication date :

    2024-08-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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