US 2021/0002117 A1 · WATER EJECTING APPARATUS

Abstract

A water ejecting apparatus includes a case and a water ejection unit connected to the case. The water ejection unit includes a fixed cover connected to the case, having atop dead point and a bottom dead point, and including a lifting gear provided between the top dead point and the bottom dead point, a lifting cover movably coupled to the fixed cover, a lifting motor coupled to the lifting cover and a gear module interworking with the lifting motor and the lifting gear, a water ejection nozzle for ejecting water, a signal detecting unit that detects a frequency generation (FG) signal generated by the lifting motor during an operation of the lifting motor, and a controller configured to control the operation of the lifting motor upon determining that the lifting cover reaches the top dead point or the bottom dead point based on the FG signal.

Claims20

Dependent claims

A liquid ejecting apparatus comprising:

a case;
and
a liquid ejector at least partially protruding from the case and comprising:
a lifting gear connected to the case;
a lifting cover connected to the case and movable with respect to the case;
a lifting motor coupled to the lifting cover and configured to generate a frequency generation (FG) signal based on operation of the lifting motor;
a gear assembly configured to engage with the lifting motor and the lifting gear;
a liquid ejection nozzle disposed at an end of the lifting cover and configured to eject liquid;
a signal detecting unit configured to detect the FG signal generated by the lifting motor;
and
a controller connected to the signal detecting unit and configured to control the lifting motor,
wherein the controller is configured to determine that the lifting cover reaches a preset top dead point or a bottom dead point based on the FG signal, and change operation of the lifting motor based on the determination.

9 more elements

A liquid ejecting apparatus comprising:

a case;
and
a liquid ejector at least partially protruding from the case and comprising:
a lifting gear connected to the case;
a lifting cover connected to the case and movable with respect to the case;
a gear assembly including a lifting motor that is coupled to the lifting cover, wherein the gear assembly is configured to engage with the lifting motor and the lifting gear;
a liquid ejection nozzle disposed at an end of the lifting cover and configured to eject liquid;
a signal detecting unit configured to detect a frequency generation (FG) signal generated by the lifting motor based on operation of the lifting motor;
a touch bar at least partially received in the lifting cover and configured to move based on contact with a liquid receiving container that is placed below the liquid ejection nozzle;
a detection sensor received in the lifting cover and configured to detect movement of the touch bar;
and
a controller connected to the signal detecting unit and the detection sensor and configured to control the lifting motor.

9 more elements

Dependencies are inferred from the claim text.

Water ejecting apparatus

Life of this patent

Water ejecting apparatus

Life of this patent

Abstract

Claims20