Integrated disk driving module including a lateral surface plate bent from an upper plate

Abstract

An integrated disk driving module is disclosed, the module including a base unit including a spindle motor fixture including an opening-formed upper plate, a lateral surface plate bent from the upper plate to form an accommodation space, and a spindle motor fixture concavely formed from the upper plate toward the accommodation space, wherein the spindle motor fixture is integrally formed with the upper plate; and a spindle motor fixed inside the spindle motor fixture to rotate a disk.

What is claimed is: 
     
         1 . An integrated disk driving module, the module comprising:
 a base unit including a spindle motor fixture including an opening-formed upper plate,   a lateral surface plate bent from the upper plate to form an accommodation space, and   a spindle motor fixture concavely formed from the upper plate toward the accommodation space,   wherein the spindle motor fixture is integrally formed with the upper plate; and   a spindle motor fixed inside the spindle motor fixture to rotate a disk.   
     
     
         2 . The integrated disk driving module of  claim 1 , wherein the spindle motor fixture integrally formed with the upper plate includes a lateral wall unit bent from the upper plate in a same direction as that of the lateral surface plate, and a floor unit connected to the lateral wall unit. 
     
     
         3 . The integrated disk driving module of  claim 2 , further comprising a circuit substrate interposed between the spindle motor and the floor unit to be electrically connected to the spindle motor, wherein the lateral wall unit is formed with at least one opening through which part of the circuit substrate passes. 
     
     
         4 . The integrated disk driving module of  claim 3 , wherein the floor unit is formed with at least one floor unit-penetrating circuit substrate alignment hole for aligning the circuit substrate on a designated position on the floor unit. 
     
     
         5 . The integrated disk driving module of  claim 2 , further comprising a circuit substrate interposed between the spindle motor and the floor unit to be electrically connected to the spindle motor, wherein the floor unit is formed with at least one opening through which part of the circuit substrate passes. 
     
     
         6 . The integrated disk driving module of  claim 2 , wherein a center of the floor unit of the upper plate is formed with a through hole, and a bearing housing of the spindle motor is coupled to the through hole of the floor unit by caulking. 
     
     
         7 . The integrated disk driving module of  claim 2 , wherein an inner lateral surface of the floor unit formed by the through hole formed at the center of the floor unit is formed with an internal rotation prevention groove concavely formed from the inner lateral surface to prevent the bearing housing of the spindle motor from. rotating relative to the floor unit. 
     
     
         8 . The integrated disk driving module of  claim 2 , wherein the center of the floor unit is formed with a burring unit protruded from a bottom surface of the floor unit toward an upper surface facing the bottom surface, wherein the spindle motor includes a cup-shaped bearing housing coupled to the burring unit, a bearing coupled to an inner side of the bearing housing, a rotation shaft rotatably coupled to the bearing, a stator coupled to the bearing housing and a rotor coupled to the rotation shaft to interact with the stator. 
     
     
         9 . The integrated disk driving module of  claim 1 , further comprising a lead screw fixed to the upper plate by a coupling screw. 
     
     
         10 . The integrated disk driving module of  claim 9 , further comprising an optical pickup module that is fed by the stepping motor. 
     
     
         11 . The integrated disk driving module of  claim 9 , further comprising first and second. guide shafts coupled to the upper plate of the base unit to guide the optical pickup module. 
     
     
         12 . The integrated disk driving module of  claim 11 , wherein the base unit includes a pair of guide shaft fixtures bent from the upper plate to a direction of the accommodation space for respectively fix a first distal end of the first guide shaft and a second distal end facing the first distal end, and a pair of second guide shafts bent from the upper plate to a direction of the accommodation space for respectively securing a third distal end of the second guide shaft and a fourth distal end facing the third distal end. 
     
     
         13 . The integrated disk driving module of  claim 12 , wherein one of first guide shaft fixtures fixed to the first distal end is formed with a through hole through which the first distal end passes, and the remaining one first guide shaft fixture fixed to the second distal end is formed with an insert groove through which the second distal end is inserted. 
     
     
         14 . The integrated disk driving module of  claim 12 , wherein one of second guide shaft fixtures fixed to the third distal end is formed with a through hole through which the third distal end passes, and the remaining one second guide shaft fixture fixed to the fourth distal end is formed with an insert groove through which the fourth distal end is inserted. 
     
     
         15 . The integrated disk driving module of  claim 12 , wherein the integrated disk driving module further includes a first pressure member fixed at the upper plate for applying pressure to the first distal end, a second pressure member fixed at the upper plate for applying pressure to the second distal end, a third pressure member fixed at the upper plate for applying pressure to the third distal end, and a fourth pressure member fixed at the upper plate for applying pressure to the fourth distal end. 
     
     
         16 . The integrated disk driving module of  claim 12 , wherein each of the first through fourth pressure members includes a leaf spring. 
     
     
         17 . The integrated disk driving module of  claim 12 , further comprising a height adjustment screw coupled to the upper plate of the base unit to adjust heights of the first and second distal ends of the first guide shaft, and coupled to the upper plate of the base unit to adjust heights of the third and fourth distal ends of the second guide shaft. 
     
     
         18 . An integrated disk driving module, the module comprising:
 a base unit including a spindle motor fixture including an opening-formed upper plate,   a lateral surface plate bent from the upper plate to form an accommodation space, and   a spindle motor fixture concavely formed from the upper plate toward the accommodation space,   wherein the guide shaft fixture includes a base unit integrally formed with the upper plate,   an optical pickup module coupled to the guide shaft fixture, and   first and second guide shafts secured to the guide shaft fixture for guiding the optical pickup module.   
     
     
         19 . The integrated disk driving module of  claim 18 , further comprising a stepping motor mounted on the upper plate and formed with a lead screw coupled to the optical pickup module. 
     
     
         20 . The integrated disk driving module of  claim 18 , further comprising a spindle motor mounted on the upper plate for rotating a disk. 
     
     
         21 . The integrated disk driving module of  claim 18 , wherein the guide shaft fixture includes first guide shaft fixtures bent from the upper plate to a direction of the accommodation space for respectively securing a first distal end of the first guide shaft and a second distal end facing the first distal end, and a pair of second guide shafts bent from the upper plate to a direction of the accommodation space for respectively securing a third distal end of the second guide shaft and a fourth distal end facing the third distal end. 
     
     
         22 . The integrated disk driving module of  claim 21 , wherein any one of the first guide shaft fixtures is formed with a through hole, and a remaining one of the first guide shaft fixtures is formed with an insertion groove. 
     
     
         23 . The integrated disk driving module of  claim 21 , wherein any one of the second guide shafts is formed with a through hole, and a remaining one of the second guide shaft fixtures is formed with an insertion groove. 
     
     
         24 . The integrated disk driving module of  claim 21 , further comprising a first pressure member fixed at the upper plate for being contacted with the first distal end, a second pressure member fixed at the upper plate for being contacted with the second distal end, a third pressure member fixed at the upper plate for being contacted with the third distal end, and a fourth pressure member fixed at the upper plate for being contacted with the fourth distal end. 
     
     
         25 . The integrated disk driving module of  claim 21 , wherein each of the first through fourth pressure members includes a leaf spring. 
     
     
         26 . The integrated disk driving module of  claim 21 , further comprising a height adjustment screw coupled to the upper plate of the base unit to adjust heights of the first and second distal ends of the first guide shaft, and coupled to the upper plate of the base unit to adjust heights of the third and fourth distal ends of the second guide shaft.