Lens driving device and camera module including same

Abstract

One embodiment of a camera module comprises: a lens barrel including at least one lens; a bobbin for accommodating the lens barrel; and a fixing part disposed between the lens barrel and the bobbin so as to inhibit the lens barrel from being separated from the bobbin, wherein one surface, which makes surface contact with the fixing part, of the bobbin can include a bobbin provided so as to protrude toward the lens barrel.

1 . A camera module comprising:
 a lens barrel comprising at least one lens;   a bobbin configured to accommodate the lens barrel therein; and   a fixing part disposed between the lens barrel and the bobbin to inhibit the lens barrel from being separated from the bobbin,   wherein one surface of the bobbin, which is in surface contact with the fixing part, comprises a bobbin rib provided so as to protrude toward the lens barrel.   
     
     
         2 . The camera module according to  claim 1 , wherein the bobbin rib comprises a plurality of bobbin ribs spaced apart from each other by a constant distance on an inner side surface of the bobbin. 
     
     
         3 . The camera module according to  claim 1 , wherein the bobbin rib is provided on an inner side surface of the bobbin so as to protrude. 
     
     
         4 . The camera module according to  claim 1 , wherein the fixing part comes into contact at one end surface thereof with an inner side surface of the bobbin, and also comes into contact at a remaining end surface thereof with an outer side surface of the lens barrel. 
     
     
         5 . The camera module according to  claim 1 , wherein the lens barrel comprises a lens barrel rib provided so as to protrude radially outwards. 
     
     
         6 . The camera module according to  claim 5 , wherein the lens barrel rib has a sinusoidal cross-sectional shape. 
     
     
         7 . The camera module according to  claim 1 , wherein the lens barrel comprises a lens barrel recess that is indented radially outwards. 
     
     
         8 . The camera module according to  claim 7 , wherein the lens barrel recess has a sinusoidal cross-sectional shape. 
     
     
         9 . The camera module according to  claim 1 , further comprising:
 a first coil provided on an outer peripheral surface of the bobbin;   a first magnet disposed so as to face the first coil;   a housing configured to support the first magnet;   upper and lower elastic members coupled to the bobbin and the housing;   a base disposed below the bobbin;   a plurality of support members configured to support the housing so as to be movable in second and third directions, which are orthogonal to a first direction, relative to the base; and   a printed circuit board seated on the base.   
     
     
         10 . The camera module according to  claim 1 , wherein the fixing part comprises ultraviolet (UV) curing epoxy. 
     
     
         11 . The camera module according to  claim 1 , wherein the fixing part comprises thermosetting epoxy. 
     
     
         12 . A camera module comprising:
 a lens barrel comprising at least one lens;   a bobbin configured to accommodate the lens barrel therein; and   a fixing part disposed between the lens barrel and the bobbin to inhibit the lens barrel from being separated from the bobbin,   wherein one surface of the bobbin, which is in surface contact with the fixing part, comprises a bobbin rib provided so as to protrude toward the lens barrel, and   wherein one surface of the lens barrel, which is in surface contact with the fixing part, comprises a lens barrel rib, which is provided so as to protrude, or a lens barrel recess, which is provided so as to be indented.   
     
     
         13 . The camera module according to  claim 12 , wherein the lens barrel rib or the lens barrel recess has a sinusoidal cross-sectional shape. 
     
     
         14 . The camera module according to  claim 12 , wherein the fixing part comprises ultraviolet curing epoxy or thermosetting epoxy. 
     
     
         15 . The camera module according to  claim 12 , wherein the bobbin rib comprises an inner peripheral surface defining a hollow cross-sectional shape. 
     
     
         16 . A camera module comprising:
 a lens barrel comprising at least one lens;   a bobbin configured to accommodate the lens barrel therein;   a fixing part disposed between the lens barrel and the bobbin to inhibit the lens barrel from being separated from the bobbin;   a first coil provided on an outer peripheral surface of the bobbin;   a first magnet disposed so as to face the first coil;   a housing configured to support the first magnet;   upper and lower elastic members coupled to the bobbin and the housing;   a base disposed below the bobbin;   a plurality of support members configured to support the housing so as to be movable in second and third directions, which are orthogonal to a first direction, relative to the base; and   a printed circuit board seated on the base,   wherein one surface of the bobbin, which is in surface contact with the fixing part, comprises a bobbin rib provided so as to protrude toward the lens barrel.   
     
     
         17 . The camera module according to  claim 16 , wherein one surface of the lens barrel, which is in surface contact with the fixing part, comprises a lens barrel rib, which is provided so as to protrude, or a lens barrel recess, which is provided so as to be indented. 
     
     
         18 . The camera module according to  claim 16 , wherein the lens barrel rib or the lens barrel recess has a sinusoidal cross-sectional shape. 
     
     
         19 . The camera module according to  claim 16 , wherein the fixing part comprises ultraviolet curing epoxy or thermosetting epoxy. 
     
     
         20 . The camera module according to  claim 16 , wherein the fixing part comes into contact at one end surface thereof with an inner side surface of the bobbin, and also comes into contact at a remaining end surface thereof with an outer side surface of the lens barrel.