Abstract: Proposed is a battery unit in which a plurality of cylindrical battery cells, each of which has an upper surface provided with a positive electrode and a negative electrode, are mounted in rows and columns, the battery unit including a lower housing in which a plurality of support recesses which support the plurality of battery cells are formed in rows and columns and a plurality of circulation holes communicating with the outside are formed, an upper housing coupled to the lower housing and having a plurality of straight removal regions; an electrode network provided on an upper surface of the upper housing and provided as a plurality of busbars connected to the positive electrodes of the plurality of battery cells; and a partition plate inserted into a space formed between the plurality of support recesses to divide the plurality of battery cells into predetermined rows and columns.

Abstract: A power transmission apparatus of a washing machine, the apparatus employing a wash/spin-dry tub inside and outer tub and an agitating member centrally disposed inside the wash/spin-dry tub for agitating laundry, wherein the apparatus comprises upper and lower cover flanges coupled to a bottom surface of the outer tub for accommodating a driving source underneath the outer tub to generate a driving force and for supporting the driving source, a motor shaft disposed at an inner circumference of a rotor at the driving source to be integrally rotated therewith, a sealing member for sealing a space between the outer tub and the motor shaft the present water from leaking out of the outer tub and for causing the motor shaft to rotate independently from the outer tub, and a ball bearing having an inner ring thereof push-fitted from under the sealing member into an outer circumference of the motor shaft while an outer ring thereof is push-fitted into an inner circumference of the upper cover flange, and a power trans

Abstract: Disclosed is a motor-clutch assembly of a direct engagement type washing machine. The assembly comprises a section for transmitting a driving force of a motor to a pulsator, a section for transmitting the driving force to a dehydrating tub, and a clutch section for transmitting or cutting off the driving force by using a cam. The clutch section comprises a lower clutch fixed on a driving shaft of the motor, an upper clutch fixed on the driving shaft and engaged with the dehydrating tub driving force transmission section so as to be engaged with or separated from the lower clutch, a clutch guide for supporting the upper clutch, a cam member for guiding the clutch guide up and down, a cam gear for moving the clutch guide along the cam member, and a lever gear for rotating the cam gear. The clutch guide is moved up and down by the rotation of the cam gear. Then, the upper clutch is moved up and down so as to be engaged with or separated from the lower clutch.

Abstract: A vacuum cleaner includes a suction generator, a dust collector, a hose extending from the dust collector, and a suction head disposed at a free end of the hose. The suction head includes an air inlet and an air outlet, and noise dampening material disposed inside the suction head above the inlet and on opposite sides of the outlet.