Abstract: The disclosure is related to an electric wheel, adapted to a wheel shaft. The electric wheel includes a wheel body, a battery holder, and at least one battery module. The wheel body has a wheel hub configured to be rotatably disposed on the wheel shaft. The battery holder includes a base and at least one first electrical connector connected to each other. The base is configured to be connected to the wheel shaft and disposed side by side to the wheel hub. The base has an outer surface facing away from the wheel shaft. The at least one battery module includes at least one battery storage and at least one second electrical connector. The at least one battery storage has an inner surface in contact with the outer surface of the base. The at least one second electrical connector is detachably mounted on the at least one first electrical connector.

Abstract: A cooling structure integrated with an electric motor and a controller includes a shell and a rear water jacket. The controller includes a power module and a control module. The electric motor has a rotor and a stator. The shell, shaped as a cylinder, is to sleeve the stator. The rear water jacket includes at least one assembly hole. The assembly hole is to allow at least one conductive pillar to penetrate therethrough. The rear water jacket, mounted to an axial end of the shell, is furnished with a plurality of rear water-jacket waterways. The stator electrically couples one end of the conductive pillar, while another end of the conductive pillar is connected with the power module.

Abstract: A cooling structure integrated with an electric motor and a controller includes a shell and a rear water jacket. The controller includes a power module and a control module. The electric motor has a rotor and a stator. The shell, shaped as a cylinder, is to sleeve the stator. The rear water jacket includes at least one assembly hole. The assembly hole is to allow at least one conductive pillar to penetrate therethrough. The rear water jacket, mounted to an axial end of the shell, is furnished with a plurality of rear water-jacket waterways. The stator electrically couples one end of the conductive pillar, while another end of the conductive pillar is connected with the power module.

Abstract: An integrated power-connected apparatus having a driving controller and an electric motor includes an electric motor, a driving controller, at least one conductive pillar, a cooler and at least one electric insulating tube. The electric motor has a rotor and a stator. The driving controller includes a power module and a control module. The at least one conductive pillar has one end thereof to electrically couple the stator, while another end thereof connects the power module. The cooler, located between the electric motor and the power module, allows the at least one conductive pillar to penetrate therethrough. The at least one electric insulating tube sleeves the at least one conductive pillar and isolates electrically the at least one conductive pillar from the control module and the cooler.

Abstract: An electric rotating machine includes a stator housing, a rotor set, a stator set, at least one controlling room, and at least one drive controller. The rotor set is located inside the stator housing. The stator set is located inside the stator housing by surrounding the rotor set. The at least one controlling room is located aside to the stator housing. The at least one drive controller is located inside the controlling room.

Abstract: The disclosure is related to an electric wheel, adapted to a wheel shaft. The electric wheel includes a wheel body, a battery holder, and at least one battery module. The wheel body has a wheel hub configured to be rotatably disposed on the wheel shaft. The battery holder includes a base and at least one first electrical connector connected to each other. The base is configured to be connected to the wheel shaft and disposed side by side to the wheel hub. The base has an outer surface facing away from the wheel shaft. The at least one battery module includes at least one battery storage and at least one second electrical connector. The at least one battery storage has an inner surface in contact with the outer surface of the base. The at least one second electrical connector is detachably mounted on the at least one first electrical connector.

Abstract: An optical sensing device for a wheel set is provided. The optical sensing device comprises a first grating, a second grating, an elastic object and two optical sensors. The first grating is set in a first wheel of the wheel set. The second grating is set in a second wheel of the wheel set. The elastic object is connected between the first wheel and the second wheel, and is adapted to sustain a force applied when an angle difference is formed by a rotation of the second wheel with respect to the first wheel. The two optical sensors are set in a power module of the wheel set and provided respectively in correspondence to the first and the second gratings. The two optical sensors receive two optical signals reflected by the first and the second gratings, and the two optical sensors are used to calculate the angle difference.

Abstract: A transmission unit comprises a planet carrier, a first hollow planet gear, a second hollow planet gear, a first ring gear, and a second ring gear. The first hollow planet gear with a first module is coupled to the planet carrier through a bearing. The second hollow planet gear with a second module different from the first module is fixed to and moving in synchronization with the first hollow planet gear. The first ring gear encircles and meshes with the first hollow planet gear. The second ring gear encircles and meshes with the second follow planet gear.

Abstract: An electric motor includes a casing, a stator, a rotor and a first coolant guiding structure. The stator is stored in a storage space of the casing. The stator includes a stator yoke and winding sets. The stator yoke has first side, second side, annular external surface and guiding channel. The first coolant guiding structure is disposed close to the winding sets and an inlet channel. The first coolant guiding structure has first radially guiding channel and first axially guiding channel. Two ends of the first radially guiding channel respectively have a first radial inlet and a first radial outlet. The first radial inlet is connected to the first axially guiding channel in order to receive coolant from the first axially guiding channel. The first radial outlet is aligned with at least one of the winding sets in order to supply coolant to the winding sets.

Abstract: A transmission unit comprises a planet carrier, a first hollow planet gear, a second hollow planet gear, a first ring gear, and a second ring gear. The first hollow planet gear with a first module is coupled to the planet carrier through a bearing. The second hollow planet gear with a second module different from the first module is fixed to and moving in synchronization with the first hollow planet gear. The first ring gear encircles and meshes with the first hollow planet gear. The second ring gear encircles and meshes with the second follow planet gear.

Abstract: A sensing device and a driving module for an electric bicycle having a spindle are provided. The sensing device includes a torque sensor, a slip ring, a grating, and a cadence sensor. The driving module includes a motor, a reducer and the sensing device. The present disclosure combines the slip ring with the grating to integrate the cadence sensor and the torque sensor into one sensing device, such that the sizes of the sensing device and the driving module are reduced.

Abstract: A hybrid motor structure is provided; the motor may include a stator, a rotor, a first coil, a first magnet set, a second coil and a second magnet set. The stator may include a plurality of stator teeth. The rotor may be installed on the stator. The first coil may be wound on the stator teeth. The first magnet set may include a plurality of first magnet blocks; the first magnet blocks may be disposed around the rotor and corresponding to the first coil. The second magnet set may include a plurality of second magnet blocks disposed around the rotor and corresponding to the second coil. The hybrid motor structure can be applied to various kinds of motors, such as radial motor and axial motor, etc.