| 摘要 |
PURPOSE: A refrigerator is provided to prevent a refrigerator door from being opened unnecessarily by a door opening sensing unit and to output a music file in opening and shutting the door. CONSTITUTION: A refrigerator is composed of a sensing unit for detecting the opening and closing states of a refrigerator door; a cavity lamp(200) turned on/off according to a short circuit of a door switch(SW1,SW2,SW3,SW4); a main microcontroller(100) for delivering a control signal to output a music file according to the short circuit of the door switch; and a music file output unit for controlling output of a set music file according to the control signal of the main microcontroller. The main microcontroller outputs the music file from the music file output unit by a selection signal of a user.
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