Refrigerator and control method therefor

A technology for refrigerators and control units, which is applied to household refrigerators, ice making, ice making, etc., to achieve the effect of preventing damage

CN112805518APending Publication Date: 2021-05-14LG ELECTRONICS INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-05-14

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Abstract

A refrigerator of the present invention comprises: a storage chamber which stores food; a cold air supply means which supplies cold air to the storage chamber; a first tray which forms a part of an ice making cell that is a space where water is phase-changed into ice by the cold air; a second tray which forms another part of the ice making cell may come into contact with the first tray during an ice making process, and may be separated from the first tray during an ice transfer process; a heater which is positioned adjacent to at least one of the first tray and the second tray; a sensor which determines the position of the second tray in a movement process of the second tray; and a control unit which controls the heater. Once a second signal is output from the sensor at the point of time when an initialization operation of the second tray starts, the control unit controls the second tray so that the second tray moves in the reverse direction for A seconds and then moves in the forward direction for B seconds. Once a first signal is output from the sensor after the second tray moves in the forward direction for B seconds, the control unit controls the second tray so that the second tray moves in the forward direction until an output changes to the second signal in the sensor. At the point of time when the output of the sensor changes to the second signal, the control unit recognizes, as a water supply position, a place where the second tray is positioned.
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Description

technical field

[0001] This instruction relates to a refrigerator and a control method thereof. Background technique

[0002] In general, a refrigerator is a home appliance capable of storing food at a low temperature in an internal storage space shielded by a door. The refrigerator cools the inside of the storage space by using cold air, and can preserve the stored food in a refrigerated or frozen state. Generally, an ice maker for making ice is provided in the refrigerator. The ice maker accommodates water supplied from a water supply source or a water tank behind a tray, and generates ice by cooling the water. The ice maker can remove the ice that has been made from the ice tray by heating or twisting.

[0003] An example of an ice maker that automatically supplies water and removes ice as described above is formed so as to open upward to hold molded ice.

[0004] The ice made in the ice maker with the above-mentioned structure has a flat surface at least on one side,...

Examples

Embodiment Construction

[0110] Hereinafter, some embodiments of the present invention will be described in detail with reference to illustrative drawings. When assigning reference numerals to constituent elements in each drawing, the same constituent elements are assigned the same reference numerals as much as possible even if they are shown in different drawings. Also, in describing the embodiments of the present invention, if it is judged that specific descriptions of related known structural elements or their functions affect understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted.

[0111] Also, terms such as first, second, A, B, (a), (b), etc. may be used in describing structural elements of the embodiments of the present invention. Such terms are only for distinguishing the structural elements from other structural elements, and the nature, sequence or order of the corresponding structural elements are not defined by the terms. When it is descri...