Damper of a voice coil plate for a plate speaker

Abstract

The present invention relates to a plate speaker, and more particularly, to a guide damper intended for a plate speaker and made of a flexible synthetic resin material. The guide damper for a voice coil plate for a plate speaker includes: a coil plate bonding part made of a flexible synthetic resin material and having an integrated structure, wherein the coil plate bonding part has a groove in the lengthwise direction thereof such that the voice coil plate is seated on the central portion thereof; an outer frame having a closed loop shape and adhering to a base frame defining the outer shape of the plate speaker, wherein the outer frame defines the outer shape of the damper; and a damper bridge connecting each of the left and right sides of the coil plate bonding part to the outer frame, wherein the damper bridge provides damping between the coil plate bonding part and the outer frame.

The invention claimed is: 
     
       1. A guide damper of a voice coil plate for a plate type speaker, the guide damper comprising:
 an outer frame adhered on a base frame defining an outer appearance of the plate type speaker and formed in a closed loop shape configuring an outer appearance of the damper, the outer frame having:
 a first side; 
 a second side extending parallel to the first side; 
 a third side extending transverse to the first side; and 
 a fourth side extending parallel to the third side; 
 
 a coil plate bonding part made of a flexible synthetic resin material, having an integrated structure, the coil plate extending parallel to the first side and second side, the coil plate including a groove formed at a central portion thereof and extending the length of the coil plate bonding part so that the voice coil plate may be seated and bonded to the coil plate bonding part; 
 and 
 a damper bridge extending in parallel with the third side and the fourth side, the damper bridge extending between the coil plate bonding part and the outer frame to provide damping between the coil plate bonding part and the outer frame. 
 
     
     
       2. The guide damper according to  claim 1 , wherein the damper bridge has a predetermined width and includes a wrinkle part having wrinkles formed in a widthwise direction. 
     
     
       3. The guide damper according to  claim 1 , wherein the damper bridge is formed with as many as three to five bridge portions. 
     
     
       4. The guide damper according to  claim 1 , wherein the synthetic resin material is rubber. 
     
     
       5. The guide damper according to  claim 1 , comprising a plurality of damper bridges, a first damper bridge and a second damper bridge disposed at first distal end and a second distal end, respectively of the coil plate bonding part. 
     
     
       6. The guide damper according to  claim 5 , further comprising a third damper bridge disposed between the first damper bridge and the second damper bridge. 
     
     
       7. The guide damper according to  claim 1 , wherein the coil plate bonding part includes:
 a first wall having a first end and a second end; 
 a second wall connected to the first end of the first wall and extending transverse to the first wall; 
 a third wall connected to the second end of the first wall and extending transverse to the first wall; 
 wherein the first wall, second wall and third wall defining the groove. 
 
     
     
       8. The guide damper according to  claim 7 , wherein the coil plate bonding part includes:
 a first wing part extending in transverse direction from a distal end of the second wall and towards the outer frame; and 
 a second wing part extending in transverse direction from a distal end of the third wall and towards the outer frame. 
 
     
     
       9. A speaker comprising:
 a diaphragm; 
 a voice coil plate; and 
 a guide damper of a voice coil plate for a plate type speaker, the guide damper including:
 an outer frame adhered on a base frame defining an outer appearance of the plate type speaker and formed in a closed loop shape configuring an outer appearance of the damper, the outer frame having:
 a first side; 
 a second side extending parallel to the first side; 
 a third side extending transverse to the first side; and 
 a fourth side extending parallel to the third side; 
 
 a coil plate bonding part made of a flexible synthetic resin material, having an integrated structure, the coil plate extending parallel to the first side and second side, the coil plate including a groove formed at a central portion thereof and extending the length of the coil plate bonding part so that the voice coil plate may be seated and bonded to the coil plate bonding part; and 
 a damper bridge extending in parallel with the third side and the fourth side, the damper bridge extending between the coil plate bonding part and the outer frame to provide damping between the coil plate bonding part and the outer frame. 
 
 
     
     
       10. The speaker according to  claim 9 , wherein the voice coil plate includes a pair of magnetic bodies spaced apart from each other. 
     
     
       11. The speaker according to  claim 9 , wherein the damper bridge has a predetermined width and includes a wrinkle part having wrinkles formed in a widthwise direction. 
     
     
       12. The speaker according to  claim 9 , wherein the damper bridge is formed with as many as three to five bridge portions. 
     
     
       13. The speaker according to  claim 9 , wherein the synthetic resin material is rubber. 
     
     
       14. The speaker according to  claim 9 , wherein the guide damper further comprises a plurality of damper bridges, a first damper bridge and a second damper bridge disposed at first distal end and a second distal end, respectively of the coil plate bonding part. 
     
     
       15. The speaker according to  claim 14 , wherein the guide damper further comprises a third damper bridge disposed between the first damper bridge and the second damper bridge. 
     
     
       16. The speaker according to  claim 9 , wherein the coil plate bonding part includes:
 a first wall having a first end and a second end; 
 a second wall connected to the first end of the first wall and extending transverse to the first wall; 
 a third wall connected to the second end of the first wall and extending transverse to the first wall; 
 wherein the first wall, second wall and third wall defining the groove. 
 
     
     
       17. The speaker according to  claim 16 , wherein the coil plate bonding part includes:
 a first wing part extending in transverse direction from a distal end of the second wall and towards the outer frame; and 
 
       a second wing part extending in transverse direction from a distal end of the third wall and towards the outer frame.