Control device for temperature control system

The present invention relates to a control device for a temperature control system. The system may comprise: a charging unit charged by main power supplied from a main device, and supplying the power obtained by charging to an additional function unit; an input unit for generating an activation command corresponding to an operation by a user; and a control unit operating by main power, and controlling the charging unit and the additional function unit to be connected with each other when an activation command is input. According to the present invention, the control device for the temperature control system provides a user with an additional function, such as voice output, short-range radio communication, color display, and the like, thereby improving convenience of the user.