Diaphragm and suspension edge having elastic ribs, and speaker

A diaphragm for a speaker which comprises a voice coil and a supporting frame, comprising:

• a vibration unit, which is being moved in its axial direction for sound production, comprising a first center portion and a second surrounding portion provided around said first center portion on one side of said vibration unit and a mounting groove is formed between an outer periphery of said first center portion and an inner periphery of said second surrounding portion for mounting to the voice coil;
• and
• a suspension edge, coupled around said vibration unit for connecting to the supporting frame, comprising:
• an inner suspension edge portion for connecting with the vibration unit, wherein said inner suspension edge portion comprises an inner suspension edge body and one or more inner side elastic ribs radially protruded from said inner suspension edge body, wherein each of said inner side elastic ribs is configured in a convex shape, wherein
• each of said inner side elastic ribs forms a bulge on a first side of said inner suspension edge portion and a flute on an opposite side of thereof;
• and
• an outer suspension edge portion for connecting with the supporting frame, wherein said outer suspension edge portion comprises an outer suspension edge body and one or more outer side elastic ribs radially protruded from said outer suspension edge body, wherein each of said outer side elastic ribs forms a protrusion on a first side of said outer suspension edge portion and a groove on an opposite side thereof, wherein said inner side elastic ribs are aligned with said outer side elastic ribs along a radial direction respectively, such that said bulges of said inner side elastic ribs are aligned with said protrusion of said outer side elastic ribs respectively while said flutes of said inner side elastic ribs are aligned with said grooves of said outer side elastic ribs respectively.

A speaker, comprising:

• a magnetic coil unit;
• a voice coil reciprocatingly moving driven by said magnetic coil unit;
• a vibration unit coupling with said voice coil and being moved in its axial direction for sound production, wherein said vibration unit comprises a plurality of wave-shaped convex teeth outwardly extended along a circumferential direction and a notch formed between two adjacent convex teeth;
• a supporting frame, and
• a suspension edge provided around said vibration unit and connected to said supporting frame, wherein said suspension comprises:
• an inner suspension edge portion for connecting with the vibration unit, wherein said inner suspension edge portion comprises an inner suspension edge body and one or more inner side elastic ribs radially protruded from said inner suspension edge body, wherein each of said inner side elastic ribs forms a bulge on a first side of said inner suspension edge portion and a flute on an opposite side thereof;
• and
• an outer suspension edge portion for connecting with the supporting frame, wherein said outer suspension edge portion comprises an outer suspension edge body and one or more outer side elastic ribs radially protruded from said outer suspension edge body, wherein each of said outer side elastic ribs forms a protrusion on a first side of said outer suspension edge portion and a groove on an opposite side thereof.