Patent ID: 8978195
Filing Date: 2015-03-17
Classification: A47L

Abstract:
1. A vacuum cleaner to perform a plurality of cleaning functions, comprising: a main body including a suction motor; a nozzle to suction air and foreign material by using a suction power generated by the suction motor; a handle disposed between the nozzle and the main body to be gripped by a user; a communication unit to receive power information including price information from an external; a power management unit to receive the power information from the communication unit, the power management unit to determine a number of cleaning functions available to the vacuum cleaner among the plurality of cleaning functions based on the received power information; and a display unit to display the number of the cleaning functions determined by the power management unit to be available to the vacuum cleaner, wherein the power management unit supplies an operating power of the vacuum cleaner in an energy saving mode or a normal mode according to the price information provided through the external, wherein, in the normal mode, the power management unit causes the display unit to display all the plurality of cleaning functions, and in the energy saving mode, the power management unit causes the display unit to display the cleaning functions from among the plurality of cleaning functions that are available in the energy saving mode.