JUICER HAVING IMPROVED JUICING PERFORMANCE

The present invention relates to a juicer having an improved juicing performance. The juice is characterized by comprising: a housing having a motor embedded therein; a driving shaft exposed through one side of the housing and driven to rotate by the motor; a driving screw which is coupled to the driving shaft and rotates integrally with the driving shaft, and which is contained in a screw housing; and a screw housing which is coupled to the housing in an attachable/detachable manner, and which is a hollow body having a hopper, wherein the driving screw comprises a driving screw body having aninstallation groove formed thereon so as to be open toward the housing, at least one piezoelectric element provided in the installation groove of the driving screw body, and a contact terminal whichis electrically connected to the piezoelectric element, and which electrically contacts a contact electrode provided on the housing; and the housing has a contact electrode. 涉及种榨汁性能提高的榨汁机，本发明的榨汁性能提高的榨汁机的特征在于包括：壳体，内置有马达；驱动轴，向所述