Vibration output apparatus and portable electronic device comprising vibration output apparatus

Abstract

The present invention relates to an apparatus for outputting vibration, and an exemplary embodiment of the present invention may provide an apparatus for outputting vibration, the apparatus including: a magnetic circuit which generates vibration; a yoke which is in contact with an upper surface of the magnetic circuit and has a raised spot with different heights in a height direction in at least one of lateral surfaces of the yoke such that one or more spaces are formed in an upper surface of the yoke; and an elastic body which is in contact with at least a part of the upper surface of the yoke, and vibratorily moves in the one or more spaces.

1 . An apparatus for outputting vibration, the apparatus comprising:
 a magnetic circuit having an upper surface, the magnetic circuit generating vibration;   a yoke having an upper surface, the yoke being in contact with the upper surface of the magnetic circuit and having raised spots with different heights, the raised spots being in a height direction in at least one lateral surface of the yoke such that one or more spaces are formed in the upper surface of the yoke; and   an elastic body being in contact with at least a part of the upper surface of the yoke and vibratorily moving in the one or more spaces of the yoke.   
     
     
         2 . The apparatus of  claim 1 , further comprising:
 a frame, which includes a bottom, a first height and a second height provided on lateral surfaces of the bottom of the frame, and a coil that receives an alternating current signal provided from the outside on an upper surface of the bottom of the frame,   wherein the magnetic circuit vibrates according to a change in a magnetic field provided by the coil.   
     
     
         3 . The apparatus of  claim 2 , wherein the elastic body includes:
 a vibrating mechanism being in contact with the upper surface of the yoke and vibrates according to the vibration of the magnetic circuit; and   a fixed region being in contact with at least one of the first height and the second height of the frame and provides a reference point to allow the vibrating mechanism to vibrate.   
     
     
         4 . The apparatus of  claim 3 , further comprising:
 a plurality of elastic bodies, at least one elastic body of the plurality of elastic bodies, which is in contact with the first height of the frame, being physically separated from another elastic body of the plurality of elastic bodies, which is in contact with the second height of the frame.   
     
     
         5 . The apparatus of  claim 1 , wherein at least a part of the one or more spaces of the yoke is formed by contact of the yoke and the elastic body and is exposed to the outside. 
     
     
         6 . The apparatus of  claim 1 , further comprising:
 a vibration plate being in contact with the upper surface of the yoke,   wherein the vibration plate outputs the vibration to the outside of the yoke.   
     
     
         7 . The apparatus of  claim 1 , wherein the vibration is in the vertical direction. 
     
     
         8 . (canceled) 
     
     
         9 . An apparatus for outputting vibration; the apparatus comprising:
 a magnetic circuit having an upper surface, the magnetic circuit generating vibration;   a yoke having an upper surface and a lower surface, the yoke being in contact with the upper surface of the magnetic circuit; and   an elastic body being in contact with at least a part of an upper surface of the yoke,   wherein at least one of lengths of corners of the upper surface of the yoke is smaller than a length of a corner of the lower surface of the yoke so that a space, in which at least a part of the elastic body vertically vibrates, is formed.   
     
     
         10 . The apparatus of  claim 9 , wherein at least a part of the space is formed to be exposed to the outside, and a height of the space is increased from one cross-section of the space in an outward direction. 
     
     
         11 . The apparatus of  claim 9 , wherein the length of the corner of the lower surface of the yoke is the length of the largest corner among lengths of corners of the lower surface of the yoke. 
     
     
         12 . An apparatus for outputting vibration, the apparatus comprising:
 a magnetic circuit that generates vibration;   an elastic body that vibratorily moves based on the vibration of the magnetic circuit;   a yoke having an upper surface and a lower surface, the yoke being positioned to be in contact between the magnetic circuit and the elastic body, a surface area of one of the upper surface and the lower surface of the yoke being the largest surface area of the apparatus; and   a vibration plate being in contact with the upper surface of the yoke and outputting the vibration to the outside of the yoke.   
     
     
         13 . The apparatus of  claim 12 , wherein the elastic body has a lower surface that is in contact with a part of the upper surface of the yoke. 
     
     
         14 . The apparatus of  claim 12 , wherein an opened recess, of which at least a part is exposed to the outside, is formed in the upper surface of the yoke so that a surface area of the upper surface of the yoke is larger than a surface area of the lower surface of the yoke. 
     
     
         15 . (canceled) 
     
     
         16 . An apparatus for outputting vibration, the apparatus comprising:
 a magnetic circuit having an upper surface, the magnetic circuit generating vibration;   a yoke having an upper surface, the yoke being in contact with the upper surface of the magnetic circuit and transmitting the vibration;   an elastic body being in contact with at least a part of the upper surface of the yoke; and   a vibration plate being in contact with the at least a part of the upper surface of the yoke,   wherein the vibration of the magnetic circuit is transmitted to the yoke, which is transmitted to the vibration plate, which is then outputted to the outside.   
     
     
         17 . (canceled)