Patent ID: 6675492
Filing Date: 2004-01-13
Classification: F24F,F26B

Abstract:
A regenerative dehumidifier comprising:a housing having a plurality of perforations formed therethrough; a dehydrating agent for absorbing moisture laden in the air and operatively regenerated by heat for vaporizing and removing moisture in said dehydrating agent when saturated with the moisture; said housing including: a first cover, a second cover combined with said first cover for forming the housing for filling the dehydrating agent therein, a plurality of supporting pads formed on the second cover, at least a plug plugged in a plug hole formed in a side portion of the housing, with said plug hole formed for filling the dehydrating agent into the interior of the housing through the plug hole; and a heating means having a heater secured on a heat-transfer plate secured in an interior in said housing; said heating means including: said heater electrically connected to an electric plug connected to a power source, and said heat-transfer plate sandwiched in between a first and a second cover of the housing and sandwiched in a first layer and a second layer of the dehydrating agent as disposed on opposite sides of said heat-transfer plate and filled in the interior in the housing, whereby upon supplying of power through the electric plug to actuate the heater to produce heat, the heat from the heater will be radiated towards the first and the second layers of the dehydrating agent through the heat-transfer plate to heat the moisture-saturated dehydrating agent for regenerating the dehydrating agent; the improvement which comprises: said heat-transfer plate having a plurality of short cylindrical ducts formed in situ through the heat-transfer plate to transfer and radiate the heat from the heater towards the dehydrating agent disposed on opposite sides of the plate; and to allow air passing through the short cylindrical ducts for better ventilation by flowing the air through a plurality of perforations formed through the first and second covers and the short cylindrical ducts formed through the heat-transfer plate.