The subject matter described herein includes an upgraded planetary gearbox including an input support provided with an input transmission element axially rotatable and connectable to an external appliance, an output support provided with an output transmission element axially rotatable and connectable to an external appliance or to an external tool, at least one planetary wheelwork operationally placed between the input transmission element and the output transmission element, and a static coupling member between the planetary wheelwork and at least one of either the input support or the output support, wherein at least one of the static coupling member, the input support and the output support includes a measuring sensor for measuring the drive torque transmitted by the output transmission element.

A semiconductor device is detachably mountable on a measurement target that includes sensors provided on a predetermined surface thereof. The semiconductor device includes a wiring board having a first surface, and a second surface opposite to the first surface, a semiconductor integrated circuit mounted on the first surface of the wiring board, measuring spring terminals mounted on the second surface of the wiring board, and projections provided on the second surface of the wiring board. Each of the measuring spring terminals makes contact with a terminal connecting to a corresponding one of the sensors to electrically connect the terminal and the corresponding one of the sensors, and each of the projections makes contact with the measurement target, in a state where the semiconductor device is mounted on the measurement target so that the predetermined surface of the measurement target opposes the second surface of the wiring board.

A torque sensor system for a pedelec includes an annular gear (6), a planetary gear train (5), a sun gear output shaft (2), a pressure conversion device (9) and a signal processing component (8). The annular gear (6), the planetary gear train (5), and the sun gear output shaft (2) are engaged in turn. The annular gear (6) is driven by the planetary gear train (5), and an applied force signal is transmitted to the signal processing component (8) via the pressure conversion device (9) at an edge of the annular gear (6). The applied force signal is converted to an electric signal by the signal processing component (8) and transmitted to a controller, so as to realize a torque feedback. As a result, a problem that a speed sensor is not applicable to a pedelec when climbing is solved; and a user will feel real and comfortable when riding.

A wireless power supply device includes an electrically-conductive case that accommodates a power transmitting circuit board and a power receiving LC circuit in a resonant cavity formed therein and surrounded by an electrically-conductive plate with both ends of a power transmitting LC circuit being connected to the electrically-conductive plate. In the resonant cavity, a power transmitting coil and a power receiving coil resonate magnetically so as to supply power of an AC voltage signal to a load. The both ends of the power transmitting LC circuit are electrically connected to the electrically-conductive case using a pair of electrically-conductive attachment units configured to attach the power transmitting circuit board to an inner wall surface of the electrically-conductive case.

A method and a device (1) are provided for determining a torque of a transmission, in particular of an actuating drive (14), in which an elastically deformable bending element (4) that deforms as a function of the torque is arranged in a transmission path of the torque, and a sensor unit (8) with which deformation of the bending element can be detected forms a structural unit which can be mounted as a whole.

The subject matter described herein includes an upgraded planetary gearbox including an input support provided with an input transmission element axially rotatable and connectable to an external appliance, an output support provided with an output transmission element axially rotatable and connectable to an external appliance or to an external tool, at least one planetary wheelwork operationally placed between the input transmission element and the output transmission element, and a static coupling member between the planetary wheelwork and at least one of either the input support or the output support, wherein at least one of the static coupling member, the input support and the output support includes a measuring sensor for measuring the drive torque transmitted by the output transmission element.

A method and a device (1) are provided for determining a torque of a transmission, in particular of an actuating drive (14), in which an elastically deformable bending element (4) that deforms as a function of the torque is arranged in a transmission path of the torque, and a sensor unit (8) with which deformation of the bending element can be detected forms a structural unit which can be mounted as a whole.

A semiconductor device is detachably mountable on a measurement target that includes sensors provided on a predetermined surface thereof. The semiconductor device includes a wiring board having a first surface, and a second surface opposite to the first surface, a semiconductor integrated circuit mounted on the first surface of the wiring board, measuring spring terminals mounted on the second surface of the wiring board, and projections provided on the second surface of the wiring board. Each of the measuring spring terminals makes contact with a terminal connecting to a corresponding one of the sensors to electrically connect the terminal and the corresponding one of the sensors, and each of the projections makes contact with the measurement target, in a state where the semiconductor device is mounted on the measurement target so that the predetermined surface of the measurement target opposes the second surface of the wiring board.

A torque sensor system for a pedelec includes an annular gear (6), a planetary gear train (5), a sun gear output shaft (2), a pressure conversion device (9) and a signal processing component (8). The annular gear (6), the planetary gear train (5), and the sun gear output shaft (2) are engaged in turn. The annular gear (6) is driven by the planetary gear train (5), and an applied force signal is transmitted to the signal processing component (8) via the pressure conversion device (9) at an edge of the annular gear (6). The applied force signal is converted to an electric signal by the signal processing component (8) and transmitted to a controller, so as to realize a torque feedback. As a result, a problem that a speed sensor is not applicable to a pedelec when climbing is solved; and a user will feel real and comfortable when riding.

A torque sensor system, a torque signal measuring method and an electric power-assisted bicycle, related to the technical field of transportation, solving the technical problem of current torque sensor systems generally needing a power input shaft to rotate in order to accurately measure stepping force provided by a rider. The torque sensor system comprises: a planetary gear mechanism (1), the planetary gear mechanism (1) comprising a power input component, a power output component and a torque detecting component; the torque detecting component is provided with an elastomer (2), a torque sensor (3) being provided on the elastomer (2); when external force is input via the power input component and output via the power output component of the planetary gear mechanism (1), the reaction force of the output power of the planetary gear mechanism (1) can be transmitted to the elastomer (2) of the torque detecting component, initiating deformation of the elastomer (2), while the torque sensor (3) obtains the magnitude of input torque by means of measuring the deformation of the elastomer (2).