Abstract: The present disclosure relates to a swing bearing and a wearable device. The swing bearing includes an inner ring, an outer ring, and a plurality of rolling elements, a plurality of first grooves arranged at intervals along a circumferential direction being formed on an outer circumferential surface of the inner ring, a plurality of second grooves arranged at intervals along a circumferential direction being formed on an inner circumferential surface of the outer ring, each rolling element being disposed between the corresponding first groove and the second groove, and the rolling element, the first groove, and the second groove being configured to restrict relative rotational movement between the inner ring and the outer ring and allow the inner ring and the outer ring to produce shaft axis deflection movement.

Abstract: The present disclosure relates to a swing bearing and a wearable device. The swing bearing includes an inner ring, an outer ring, and a plurality of rolling elements, a plurality of first grooves arranged at intervals along a circumferential direction being formed on an outer circumferential surface of the inner ring, a plurality of second grooves arranged at intervals along a circumferential direction being formed on an inner circumferential surface of the outer ring, each rolling element being disposed between the corresponding first groove and the second groove, and the rolling element, the first groove, and the second groove being configured to restrict relative rotational movement between the inner ring and the outer ring and allow the inner ring and the outer ring to produce shaft axis deflection movement.

Abstract: A circuit includes: a power generation module a low-frequency motion energy harvesting module, configured to harvest a direct current output by the power generation module when the human body is in a low-frequency motion state; a high-frequency motion energy harvesting module, configured to harvest a direct current output by the power generation module when the human body is in a high-frequency motion state; an energyrespectively connected to the low frequency motion cncrgy harvesting modulo configured to store electrical energy; and a motion switching module, respectively connected to the power generation module, the low-frequency motion energy harvesting module and the high-frequency motion energy harvesting module, and configured to monitor a human body motion state, and control, according to the human body motion state, switching between operation of the low-frequency motion energy harvesting module and operation of the high-frequency motion energy harvesting module, to respectively charge the energy stor

Abstract: A device for generating electricity includes a support; a driving element rotatably mounted on the support; an electricity generator disposed on the support; a circuit board connected to the electricity generator; and a drive assembly disposed on the support and including an input gear and an output gear. The driving element is coupled with the input gear to drive the input gear to rotate, and the output gear is coupled with the electricity generator and driven to rotate by the input gear.

Abstract: A device for generating electricity includes a support; a driving element rotatably mounted on the support; an electricity generator disposed on the support; a circuit board connected to the electricity generator; and a drive assembly disposed on the support and including an input gear and an output gear. The driving element is coupled with the input gear to drive the input gear to rotate, and the output gear is coupled with the electricity generator and driven to rotate by the input gear.