A desiccant wheel for a dehumidifier includes a band of material around an outer circumference of the desiccant wheel and a plurality of sprocket holes formed in the band of material. The plurality of sprocket holes are configured for coupling the desiccant wheel to a sprocket. The desiccant wheel is configured to rotate when the sprocket is rotated by a motor.

An air treatment apparatus (10), such as a dehumidifier or latent cooling system, has a desiccant wheel (12) having a plurality of similar internal structures (14), a shroud (16), at least a first fan (18, 20), a motor (30), an axle (32), slip rings (34), and sliding contacts (36). The similar internal structures are coated with a desiccant, and may be shaped as blades, cylinders, boxes, teeth, or corrugations. The shroud divides the wheel into an active area where the desiccant removes moisture to provide treated air (22), and a regeneration area where the desiccant is heated to release the adsorbed moisture from the air (28). Switches, such as magnetic switches, apply electrical power to heaters in the similar internal structures as they rotate into the regeneration area thereby heating and drying the desiccant.

A dehumidifier includes a desiccant, first and second fans, and a bracket. The first fan generates a process airflow through a first portion of the desiccant as it rotates in order to provide dehumidification. The second fan generates a reactivation airflow through a second portion of the desiccant as it rotates in order to dry the desiccant. The bracket is configured to mount the first fan within the dehumidifier. The bracket includes a first portion coupled to the first fan that supports weight of the first fan when the dehumidifier is in an upright position. The bracket also includes a support member coupled to the first portion and a side of the dehumidifier. The side member supports weight of the first fan when the dehumidifier is in a horizontal position.

Drying device including a drying medium with a predetermined number of drying segments which extend adjacently of each other and are associated with at least one opening at each of a first connecting end and a second connecting end, wherein the predetermined number is greater than six and wherein each connecting end includes first and second complementary concentric elements which are rotatable relative to each other round an axis. The openings are provided in the first concentric elements along a rotation ring around the axis. The second concentric elements each delimit at least two channels which open at the position of said rotation ring, so that corresponding channels of the first and second connecting end are connected to each other via the openings and the drying segments in order to allow a first airflow and a second airflow through the drying device.

A dehumidifier includes a wheel-shaped desiccant, a first fan, and a second fan. The wheel-shaped desiccant is configured to rotate in a clockwise direction when viewed from above. The first fan is configured to generate a process airflow that flows through a first portion of the wheel-shaped desiccant in order to provide dehumidification. The process airflow enters a first side of the wheel-shaped desiccant and exits a second side of the wheel-shaped desiccant, the first being opposite from the second side. The second fan is configured to generate a reactivation airflow that flows through a second portion of the wheel-shaped desiccant in order to dry the wheel-shaped desiccant. The reactivation airflow enters the second side of the wheel-shaped desiccant and exits the first side of the wheel-shaped desiccant.

A dehumidifier includes a desiccant, a cabinet, a first fan, and a second fan. The cabinet comprises a process airflow inlet, a process airflow outlet, a reactivation airflow inlet, and a reactivation airflow outlet that is located adjacent to the desiccant. The first fan generates a process airflow through a first portion of the desiccant as it rotates in order to provide dehumidification. The process airflow enters the cabinet through the process airflow inlet and exits the cabinet through the process airflow outlet. The second fan generates a reactivation airflow through a second portion of the desiccant as it rotates in order to dry the desiccant. The reactivation airflow enters the cabinet through the reactivation airflow inlet and exits the cabinet through the reactivation airflow outlet.

A dehumidifier includes a wheel-shaped desiccant, a first fan, and a second fan. The wheel-shaped desiccant is configured to rotate in a clockwise direction when viewed from above. The first fan is configured to generate a process airflow that flows through a first portion of the wheel-shaped desiccant in order to provide dehumidification. The process airflow enters a first side of the wheel-shaped desiccant and exits a second side of the wheel-shaped desiccant, the first being opposite from the second side. The second fan is configured to generate a reactivation airflow that flows through a second portion of the wheel-shaped desiccant in order to dry the wheel-shaped desiccant. The reactivation airflow enters the second side of the wheel-shaped desiccant and exits the first side of the wheel-shaped desiccant.

A dehumidifier includes a desiccant, a cabinet, a first fan, and a second fan. The cabinet comprises a process airflow inlet, a process airflow outlet, a reactivation airflow inlet, and a reactivation airflow outlet that is located adjacent to the desiccant. The first fan generates a process airflow through a first portion of the desiccant as it rotates in order to provide dehumidification. The process airflow enters the cabinet through the process airflow inlet and exits the cabinet through the process airflow outlet. The second fan generates a reactivation airflow through a second portion of the desiccant as it rotates in order to dry the desiccant. The reactivation airflow enters the cabinet through the reactivation airflow inlet and exits the cabinet through the reactivation airflow outlet.

A dehumidifier includes a desiccant, first and second fans, and a bracket. The first fan generates a process airflow through a first portion of the desiccant as it rotates in order to provide dehumidification. The second fan generates a reactivation airflow through a second portion of the desiccant as it rotates in order to dry the desiccant. The bracket is configured to mount the first fan within the dehumidifier. The bracket includes a first portion coupled to the first fan that supports weight of the first fan when the dehumidifier is in an upright position. The bracket also includes a support member coupled to the first portion and a side of the dehumidifier. The side member supports weight of the first fan when the dehumidifier is in a horizontal position.

A desiccant wheel for a dehumidifier includes a band of material around an outer circumference of the desiccant wheel and a plurality of sprocket holes formed in the band of material. The plurality of sprocket holes are configured for coupling the desiccant wheel to a sprocket. The desiccant wheel is configured to rotate when the sprocket is rotated by a motor.