Diaphragms, air conduction speakers, and wearable electronic devices

An air conduction speaker, comprising a frame, a drive assembly, and a diaphragm, wherein the diaphragm includes:

• a center main body;
• and
• a folded ring connected to an outer peripheral edge of the center main body, wherein the folded ring includes two arcuate segments and two connecting segments, the two arcuate segments are spaced apart and disposed opposite to each other, and the two connecting segments are disposed spaced apart side-by-side and connected one-to-one between two pairs of opposite ends of the two arcuate segments, wherein
• each arcuate segment of the two arcuate segments is provided with a plurality of first pattern grooves spaced apart from each other in an extension direction of the arcuate segment,
• two ends of each first pattern groove extend towards an inner ring and an outer ring of the folded ring, respectively, and
• the plurality of first pattern grooves are arranged in a radial arrangement along a same spiral direction,
• the drive assembly is at least partially surrounded by the frame,
• the folded ring is fixed on the frame, and
• the drive assembly is coupled to the center main body.

A wearable electronic device, comprising a housing and an air conduction speaker, the air conduction speaker being provided in an interior of the housing, wherein the air conduction speaker includes a frame, a drive assembly, and a diaphragm, wherein the diaphragm includes:

• a center main body;
• and
• a folded ring connected to an outer peripheral edge of the center main body, wherein the folded ring includes two arcuate segments and two connecting segments, the two arcuate segments are spaced apart and disposed opposite to each other, and the two connecting segments are disposed spaced apart side-by-side and connected one-to-one between two pairs of opposite ends of the two arcuate segments, wherein
• each arcuate segment of the two arcuate segments is provided with a plurality of first pattern grooves spaced apart from each other in an extension direction of the arcuate segment,
• two ends of each first pattern groove extend towards an inner ring and an outer ring of the folded ring, respectively, and
• the plurality of first pattern grooves are arranged in a radial arrangement along a same spiral direction,
• the drive assembly is at least partially surrounded by the frame,
• the folded ring is fixed on the frame, and
• the drive assembly is coupled to the center main body.