A dehumidification system comprising an enclosure having sidewalls, the sidewalls defining a cavity; an inlet fluidly coupled to the cavity, the inlet configured to receive air into the cavity; an outlet fluidly coupled to the cavity, the outlet configured to discharge the air from the cavity; a sorbent bed located within the cavity fluidly coupled to the inlet and the outlet; the sorbent bed comprising a substrate with dehumidification materials attached to the substrate and coupled to an insulator; a regenerable power source electrically coupled to the substrate configured to electrically heat the substrate to a predetermined temperature configured to regenerate the sorbent bed and a blower fluidly coupled to the inlet and the outlet, the blower configured to transfer air from the inlet through the sorbent bed and out the outlet.

A device for reducing a carbon dioxide and water content in an enclosed air volume has first and second sorption units for sorbing carbon dioxide and water. The first and second sorption units can be transferred from a sorption mode into a desorption mode and vice versa. In the sorption mode, the first and second sorption units sorb carbon dioxide and water from raw air of the enclosed air volume. In the desorption mode, the first and second desorption units desorb carbon dioxide and water to supplied regeneration air. An air distribution device can switch the first and second sorption units, based on the carbon dioxide and water content, alternately from sorption mode into desorption mode such that, in at least one operating state of the device, one of the first and second sorption units is in sorption mode while the other is in desorption mode.

A cabin air control system comprises an upper housing including a first end and an opposite second end, and a lower housing including a first end, an opposite second end, an air inlet passage with an inlet opening at the first end of the lower housing, and a regeneration air chamber communicating with the air inlet passage via a regeneration air port. The system further includes a single adsorption unit configured to adsorb moisture and/or carbon dioxide, a heater disposed in the regeneration air chamber, the heater being configured to heat air before being delivered to the adsorption unit, and the heated air being used to regenerate the adsorption unit, and a flap control assembly configured to switch between an adsorption mode and a regeneration mode.

A cooling device is applied to an in-vehicle equipment having a cooling unit which cools air, and cools an in-vehicle heat-emitting apparatus with the air cooled by the cooling unit. The cooling device includes: an adsorption unit including an adsorption material which adsorbs moisture; an adsorption case that defines a housing space in which the adsorption unit is disposed, the air cooled by the cooling unit passing through the adsorption case, the adsorption material adsorbing moisture from the air; and a cooling air outlet part that guides a dehumidification air, from which the moisture is adsorbed within the adsorption case, to a target space to be cooled where the heat-emitting apparatus is arranged.

A humidification device includes: an adsorber having an adsorbent that adsorbs and desorbs moisture; an adsorption case that forms an accommodating space to accommodate the adsorber; a first introduction portion that introduces cooled air produced by a cooling portion into the adsorption case; a second introduction portion that introduces heated air produced by the heating portion into the adsorption case; and a humidification-side guiding portion that guides humidification air humidified by the moisture desorbed within the adsorption case, to the vehicle interior. The first introduction portion is connected to a bottom surface portion of the air-conditioning case on the air-flow downstream side of the cooling portion in the air-conditioning case.

A humidification device for a vehicle air conditioner includes an adsorber having an adsorbent, an adsorption case configured to provide an accommodating space that accommodates the adsorber and includes a moisture-adsorption space and a moisture-desorption space, a humidification-side guiding portion that guides humidification air humidified by using the moisture desorbed within the moisture-desorption space to a vehicle interior, a moving mechanism that moves at least a part of the adsorbent existing in the moisture-adsorption space of the adsorber to the moisture-desorption space while moving at least a part of the adsorbent existing in the moisture-desorption space of the adsorber to the moisture-adsorption space, and a desorption control unit that executes a desorption operation to desorb moisture adsorbed in the adsorbent when humidification of the vehicle interior is stopped.

A humidification device includes: an adsorber having an adsorbent that adsorbs and desorbs moisture; an adsorption case that forms an accommodating space to accommodate the adsorber; a first introduction portion that introduces cooled air produced by a cooling portion into the adsorption case; a second introduction portion that introduces heated air produced by the heating portion into the adsorption case; and a humidification-side guiding portion that guides humidification air humidified by the moisture desorbed within the adsorption case, to the vehicle interior. The first introduction portion is connected to one of an upper surface portion and a side surface portion of the air-conditioning case, on an air-flow downstream side of the cooling portion in the air-conditioning case.

A vehicle air conditioning system includes: a dehumidifying device; a power source; an inflow pipe for allowing air from a vehicle interior or a vehicle exterior to flow into the dehumidifying device; a first outflow pipe for returning the air that has been dehumidified by the dehumidifying device to the vehicle interior; a second outflow pipe through which the air containing moisture released by a regeneration process of the dehumidifying device is circulated; and a switching valve provided at a branch portion between the first outflow pipe and the second outflow pipe, the switching valve being capable of switching the flow of the air to the first outflow pipe or the second outflow pipe. A mist separator including a filter for removing the moisture is provided in the second outflow pipe. The second outflow pipe merges with the first outflow pipe on a downstream side of the mist separator.

A vehicle air conditioning system includes: a dehumidifying device; a power source; an inflow pipe for allowing air from a vehicle interior or a vehicle exterior to flow into the dehumidifying device; a first outflow pipe for returning the air that has been dehumidified by the dehumidifying device to the vehicle interior; a second outflow pipe through which the air containing moisture released by a regeneration process of the dehumidifying device is circulated; and a switching valve provided at a branch portion between the first outflow pipe and the second outflow pipe, the switching valve being capable of switching the flow of the air to the first outflow pipe or the second outflow pipe. A separator capable of separating moisture contained in the air by centrifugation is provided in the second outflow pipe. The second outflow pipe merges with the first outflow pipe on a downstream side of the separator.

In an adsorption operation in which the adsorption agent adsorbs water, air in a vehicle compartment flows into an adsorption agent module after being cooled by passing around a heat sink. On the other hand, in a desorption operation in which the water is desorbed from the adsorption agent, the air in the vehicle compartment flows into the adsorption agent module to be humidified without being heated or cooled, and humidified air is cooled by passing around the heat sink and blown into the vehicle compartment. Accordingly, a temperature of the humidified air can be prevented from increasing unnecessarily by a simple configuration with which the air in the vehicle compartment is cooled in the heat sink.