Provided is a refrigerator with a dispenser assembly capable of sensing the height of a vessel and water level using a remote sensor by employing changes in electrostatic capacitance, in order to enable a user to automatically dispense water to a desired level regardless of the material or size of a
Provided is a refrigerator with a dispenser assembly capable of sensing the height of a vessel and water level using a remote sensor by employing changes in electrostatic capacitance, in order to enable a user to automatically dispense water to a desired level regardless of the material or size of a vessel.
대표청구항▼
1. A refrigerator comprising: a body having a door; anda dispensing unit provided in one of the body and the door, the dispensing unit including: a recess configured to receive a vessel;a sensor movable upwardly and downwardly with respect to the recess; andan outlet for dispensing liquid into the v
1. A refrigerator comprising: a body having a door; anda dispensing unit provided in one of the body and the door, the dispensing unit including: a recess configured to receive a vessel;a sensor movable upwardly and downwardly with respect to the recess; andan outlet for dispensing liquid into the vessel,the sensor being configured to detect a height of the vessel received in the recess and to detect when the dispensed liquid reaches a predetermined height. 2. The refrigerator of claim 1, wherein the dispensing unit is located in the door. 3. The refrigerator of claim 1, wherein the recess includes a slot formed therein, the sensor being moveable along the slot to detect the height of the vessel. 4. The refrigerator of claim 1, wherein the sensor is an electrostatic capacitance sensor. 5. The refrigerator of claim 1, further comprising an input unit including a plurality of inputs for selecting a desired amount of liquid to be dispensed, each of the plurality of inputs relating the amount of liquid to be dispensed to the height of the vessel. 6. The refrigerator of claim 5, wherein at least one of the plurality of inputs provides the predetermined height as being half the height of the vessel detected by the sensor. 7. The refrigerator of claim 1, wherein the dispensing unit includes a printed circuit board and a wire connecting the printed circuit board to the sensor. 8. The refrigerator of claim 7, wherein the sensor is located on a supporter moveable upwardly and downwardly, and the supporter is connected to a displacement mechanism to raise and lower the supporter. 9. The refrigerator of claim 8, wherein the displacement mechanism includes: a rack arranged in a generally vertical direction; anda pinion engaged to the rack. 10. The refrigerator of claim 9, wherein the supporter is connected to the pinion by a shaft. 11. The refrigerator of claim 9, wherein the displacement mechanism includes: a motor having a shaft; anda worm gear on the shaft, the worm gear being engaged with the pinion. 12. The refrigerator of claim 7, wherein the printed circuit board includes a controller, the controller being configured to control the movement of the sensor. 13. The refrigerator of claim 12, wherein the controller is configured to control the movement of the sensor from an upper position downward until the vessel is detected. 14. The refrigerator of claim 13, wherein the controller is configured to control the movement of the sensor to move the sensor to the predetermined height, to control the dispenser to dispense liquid until the sensor detects the liquid at the predetermined height, and to control the dispenser to stop dispensing of the liquid after the liquid reaches the predetermined height. 15. A method of dispensing liquid from a dispenser in a refrigerator, the dispenser including a recess for receiving a vessel, a movable sensor, and an outlet for dispensing the liquid, the method comprising: detecting the height of the vessel placed in the recess by moving the sensor;dispensing the liquid into the vessel;detecting when the liquid reaches a predetermined height by the sensor; andstopping dispensing the liquid when the liquid reaches the predetermined level. 16. The method of claim 15, wherein detecting the height of the vessel includes moving the sensor from an upper position downward until a top of the vessel is detected. 17. The method of claim 16, wherein dispensing the liquid includes first moving the sensor to the predetermined height, then dispensing the liquid until the liquid reaches the predetermined height. 18. The method of claim 15, wherein the sensor is an electrostatic capacitance sensor, and wherein detecting the height of the vessel and detecting when the liquid reaches the predetermined height are indicated by changes in capacitance measured by the sensor. 19. The method of claim 15, wherein the refrigerator includes an input portion having a plurality of inputs for selecting a desired amount of liquid to be dispensed, each of the plurality of inputs relating the amount of liquid to be dispensed to the height of the vessel, the method further comprising: detecting selection of one input of the plurality of inputs by a user; and calculating the predetermined height based on the detected input and the detected height of the vessel.
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