Case for dishwasher-use washing balls

A washing ball case for a dishwasher, in which a case body (100) is formed by thermally bonding a top plate (10) and a bottom plate (20) to each other in the vertical direction, which are formed of a synthetic resin material and have holes (11), (21), and washing balls (30) formed of a ceramic material are accommodated in an internal space part of the case body (100) so as to be used for dish-washing, characterized in that:

• through holes (120) are formed in an outer side portion of the case body (100) so as to communicate with the internal space part and correspond to each other in the top plate (10) and the bottom plate (20), vertically positioned at a lower side so as to allow washing water to be completely drained through the through holes (120) at the time of washing dishes, and inserted by fixing pins (210) of a fixing device (200) such that the top plate and the bottom plate are fixed to be bonded at the time of thermally bonding the top plate and the bottom plate, and
• reference grooves (130) are formed in the vertical direction on the outer side portion of the case body (100) at the same positions on the top plate (10) and the bottom plate (20) such that thermal bonding positions of the top plate (10) and the bottom plate (20) are uniformly bonded by support bars (300), which are inserted into the reference grooves during the thermal bonding of the top plate (10) and the bottom plate (20).