Flat type speaker having damper-lead plate of PCB voice coil plate

Abstract

A flat-type speaker having a damper-lead plate of a PCB voice coil plate includes a pair of magnetic bodies having a magnet and a yoke formed side-by-side, separated at a predetermined interval; a voice coil plate inserted between the magnetic bodies, and having printed thereon a voice coil with a spiral pattern; a first damper-lead plate physically separated from a second damper-lead plate, each having +, − terminals formed on the front ends thereof, the first and the second damper-lead plates each equipped with a coil plate spline, which adheres to the upper end of the voice coil plate, and at least one wing spline having one end thereof connected to the coil plate spline and the other end connected to the terminals; and a vibration plate, which vibrates from the vibration received from the voice coil plate, while being contacted to the upper end portion of the damper-lead plate.

The invention claimed is: 
     
       1. A flat type speaker having damper-lead plates for a PCB voice coil plate, comprising:
 a pair of magnetic bodies spaced apart from each other at a specific interval, formed side by side, and each having a magnet and yokes formed therein; 
 a voice coil plate inserted into an interval between the magnetic bodies and having a voice coil spirally patterned and printed formed therein; 
 damper-lead plates comprising first and second damper-lead plates physically separated and having + and − terminals formed at respective front ends of the damper-lead plates, wherein each of the first and the second damper-lead plates comprises a coil plate spline adhered to a top of the voice coil plate and one or more wing splines having one end connected to the coil plate spline and the other end connected to the + or − terminal; and 
 a vibration plate vibrated in response to a vibration of the voice coil plate with the vibration plate coming in contact with a top of the damper-lead plates. 
 
     
     
       2. The flat type speaker of  claim 1 , wherein the wing splines are brought in contact with a bottom of the vibration plate. 
     
     
       3. The flat type speaker of  claim 1 , wherein:
 the first and the second damper-lead plates are made of conductive and metallic materials, and 
 the second damper-lead plate is symmetrical to the first damper-lead plate and rotated by 180 degrees from the first damper-lead plate. 
 
     
     
       4. The flat type speaker of  claim 1 , wherein:
 the first and the second damper-lead plates are made of insulating materials and formed of one body, and 
 the first and the second damper-lead plates are coated with conductive materials in such a way as to be electrically separated. 
 
     
     
       5. The flat type speaker of  claim 1 , wherein each of the first and the second damper-lead plates comprises a lead block connected to a front end of the voice coil by soldering at a front end on one or the other side of the coil plate spline or at front ends on both sides of the coil plate spline. 
     
     
       6. The flat type speaker of  claim 5 , wherein:
 a width of the coil plate spline is smaller than or equal to a thickness of the voice coil plate, and 
 a width of the lead block is greater than the width of the coil plate spline.