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US 5,078,971 AGranted
Deodorizer device
AssigneeHitachi, Ltd.
InventorsMichiya Matuda, Tooru Kobayashi, Fumikazu Washimi, Masaei Kawashima, Masaaki Kashiwabuchi, Kikuzi Takahashi, Atsushi Kanai
Life of this patent
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Abstract
A deodorizer device for use in a refrigerator has an absorbent capable of absorbing odor components from air, a layer of a photocatalyst deposited on the surface of the absorbent, and a light source for illuminating the photocatalyst layer to excite the same. Air containinig odor components is forced by a blower to flow through the absorbent.
Claims11
A deodorizer device comprising:
- an absorption unit including an odor absorbent capable of absorbing an odor component and a layer of a photocatalyst deposited on a surface of said absorbent and capable of decomposing said odor component absorbed by said absorbent when excited by irradiation with light;
- a light source for irradiates said layer of said photocatalyst with light;
- and
- a blower which causes air containing the odor component to pass through said absorption unit.
1 more element
A refrigerator deodorizer device for use in a refrigerator chamber which stores foods and other materials, comprising:
- an absorption unit including an odor absorbent capable of absorbing odor components in air and a layer of a photocatalyst deposited on a surface of said absorbent and operative to decompose said odor components absorbed by said absorbent when excited by irradiation with ultraviolet radiation;
- an ultraviolet lamp for irradiating said absorption unit with ultraviolet radiation;
- reflection means for reflecting said ultraviolet radiation from said ultraviolet lamp so as to direct said ultraviolet radiation towards said absorption unit;
- an ultraviolet lamp stabilizer for stabilizing operation of said ultraviolet lamp;
- a blower for directing air containing said odor components towards said absorption unit;
- a driving motor for driving said blower;
- a control circuit substrate carrying thereon an electrical circuit for controlling operation of said ultraviolet lamp and said driving motor;
- and
- housing means defining a suction chamber having a suction opening, and a discharge chamber having a discharge opening, said suction chamber and said discharge chamber being separated from each other by said absorption unit, said suction chamber accommodating said control circuit substrate, said reflection means, and said ultraviolet lamp, said discharge chamber accommodating said ultraviolet lamp stabilizer, said blower, and said driving motor.
6 more elements
Dependencies are inferred from the claim text.