Dynamic micro speaker of composite mode of vibration and sound

摘要

The present invention is made of the upper and lower vibration through without a direct-current power supply as a separate driving circuit, is always not a progressive decrease vibration phenomena arising from vibration at the resonance point, relates to a dynamic micro-speaker is a broadband reproducible, vibration generating portion and a sound generation in the vibration and the composite mode micro speaker of a sound comprising a first magnetic and first yoke fixed coupled to the hole formed in the center of the sound generation portion, the lower cover, the first permanent magnet and, with a first plate circuit; Primary suspension with integrated diaphragm; A first coil; And a restoring force is produced with excellent material, comprising: a secondary suspension provided between the first plate and the diaphragm, wherein the first coil is attached to the secondary suspension to be located in a lower portion of the secondary suspension, the vibration plate this is attached to the secondary suspension to be located in an upper portion of the secondary suspension, the extended portion from the edge of the secondary suspension is connected to the electrode terminal of the printed circuit board, wherein the vibration generating portion, the outer side of the first yoke the second yoke and the second magnetic circuit including a second permanent magnet, and a second plate provided on; A ring-shaped leaf spring to support the flow possibly the second yoke in the vertical direction; Located between the second yoke and the second plate, the second coil is fixedly coupled; And wherein a switching means for switching the direct current power supply to the second coil. ; Micro, vibration, sound, a speaker, a composite, a plate spring, a spring, a switching, the dynamic