A seat assembly may include a seat including a seat base and a seat back, a sensor, a vent unit disposed at least partially within the seat back, and/or an electronic control unit (ECU) connected with the sensor and the vent unit. The ECU may be configured to determine, via the sensor, if a user of the seat exhibits symptoms of fatigue. The ECU may be configured to operate the vent unit in a first mode and a second mode. When the vent unit is in the first mode, the vent unit may provide cool air to said user of the seat. When the vent unit is in the second mode, the vent unit may provide warmer and/or less air to said user of the seat. The ECU may automatically switch the vent unit between first and second modes to reduce symptoms of fatigue.

A vehicle occupant air curtain system includes a seat that has a seat cushion and a seat back. The seat back has a region that is configured to be arranged above an occupant shoulder. An air vent is supported on the seat back and is arranged in the region. The air vent is configured to be directed adjacent to a seated occupant's head and neck.

An air supply device and a method of operating same are provided for a vehicle seat having an air discharge opening provided in the upper region of the vehicle seat, via which opening a head, shoulder, and neck region of the seat occupant can be supplied with an airflow. The airflow is adjustable by a control unit for controlling or regulating a fan rotational speed of a blower and can be heated via a heating element. The control unit is supplied at least one activation signal for activating the air supply device and a temperature signal that provides information about the interior temperature. The control unit activates the heating element and the blower according to the activation signal and then controls at least the blower as a function of the interior temperature.

An air curtain device and an air circulation system are provided. The air curtain device includes a main body, an air supply opening configured to receive air, an armrest air jet aperture configured to discharge the received air, and a headrest air jet aperture configured to discharge the received air. The air circulation system includes an air supply device and the air curtain device.

A device for controlling the temperature of the neck region of a user of a vehicle seat. The device includes an air conveying device that is configured to convey air to a temperature control region, a temperature control device that is configured to control the temperature of the air to be conveyed to the temperature control region, and a control device that is configured to automatically control the air conveying device and the temperature control device.

The present teachings relate to a neck fan for a vehicle seat for generating a usable air flow that emerges from the neck fan toward a passenger, said neck fan being provided with at least one air conveying device for generating a usable air flow in the region of a headrest or the upper end of a seat back. It is provided that one or more compensating means are provided, by means of which asymmetrical climatic conditions caused by interfering currents in the area surrounding a passenger can be compensated for, and that one or more compensating means act asymmetrically on the usable air flow and/or impart an asymmetry to the cross-section of the usable air flow, at least in the region of an outlet of the neck fan, said asymmetry relating to at least one geometric or thermodynamic parameter.

An air conditioning seat including: two air outlets configured to distribute air distributed from an interior of the seat to an exterior of the seat, wherein the two air outlets are configured to receive supply of air from different air distribution paths and distribute air of different temperatures or humidity.

A vehicle seat includes an air mover within a seatback. An inlet channel extends from an occupant seatback surface to the air mover and includes first and second outlet channels. The air mover selectively and alternatively moves air from the inlet channel to one of the first and second outlet channels. The first outlet channel includes a vent located proximate a headrest.

A device for ventilating the occupant of a vehicle seat, comprising an air inlet receiving air from a ventilation member, and comprising a first duct integrated at least in part into the backrest of the seat, a second duct integrated into a headrest mounted on the seat and supplying at least one air outlet integrated into the headrest and expelling air coming from the ventilation member, the second duct and first duct being connected by a leaktight sliding connection.

A vehicular air conditioner includes a first outlet that blows a conditioned air frontward to flow past a neck part of an occupant on a seat, and a second outlet that is provided below the first outlet and blows the conditioned air upward to flow past an armpit part of the occupant. The second outlet blows the conditioned air to merge with the conditioned air blown from the first outlet. The second outlet blows the conditioned air with an airflow volume larger than an airflow volume of the conditioned air from the first outlet such that the conditioned air blown from the second outlet guides the conditioned air blown from the first outlet to flow along a face of the occupant.