Abstract: A cooling and heating apparatus for vehicle seats and a method of controlling the same, which can control the cooling or heating temperature by sensing the temperature of air before the air is introduced into a cooling and heating module. The apparatus includes: a blower fan installed in a housing so as to forcibly blow cool or hot air to an air supply channel of a vehicle seat; a temperature sensor mounted in the housing at a location at which the temperature sensor comes into contact with sucked air and senses a temperature of the sucked air; and a control unit receiving a temperature signal from the temperature sensor and controlling a cooling or heating temperature according to a characteristic value that corresponds to a state of the sucked air and is selected from characteristic values stored therein.

Abstract: A ventilation apparatus for a seat in which a positive temperature coefficient (PTC) heater is equipped in the ventilation apparatus which blows air to the seat in order to prevent overheating as well as to reduce heat loss. The ventilation apparatus includes a seat having a back and a seating section each of which has a discharge passage which discharges air toward a user. A blower is disposed in each discharge passage of the seat. A PTC heater is disposed inside each blower, and heats air that is being blown. A control unit simultaneously or individually controls the blowers and the PTC heaters. Accordingly, heating efficiency is improved and safety is increased.

Abstract: A condensate water removing apparatus for vehicle air conditioners which quickly removes condensate water generated from a thermoelement assembly. The apparatus includes: a thermoelement assembly installed in an air channel that guides air sucked and blown by a blower fan for heating or cooling; a partition plate placed to come into contact with the thermoelement assembly so that it guides air when sucked air passes through the thermoelement assembly so as to become cooling or heating air, the partition plate partitioning the air channel into an air supply channel and an air discharge channel; and a moisture absorbing material covering the thermoelement assembly and extending from the air supply channel to the air discharge channel so that the moisture absorbing material absorbs condensate water generated from the air supply channel and guides the condensate water to the air discharge channel, thereby removing the condensate water in the air discharge channel.