Patent ID: 9170047
Filing Date: 2015-10-27
Classification: F25D

Abstract:
1. A refrigerator comprising: a storage container comprising a storage space to store food; a plurality of measurement terminals having ends that are exposed to the storage space; and a sensor device comprising a case, a plurality of electrode terminals, and a battery mounted in the case, to apply a voltage to the plurality of electrode terminals, wherein the sensor device is detachably mounted to the storage container, wherein the plurality of electrode terminals are configured to selectively be used as one of a plurality of charging terminals to charge the battery and a plurality of connecting terminals to connect with the plurality of measurement terminals based on whether the sensor device is detached from the storage container, and wherein an inner surface of the storage container includes a sensor surface adjacent to the ends of the measurement terminals, and the sensor surface includes at least one stepped surface to prevent the ends of the measurement terminals, which are exposed to the storage space, from coming into direct contact with food stored in the storage space.