Photocatalytic air cleaning structure for air cleaner, air cleaner having the air cleaning structure, and photocatalytic filter for use in the air cleaning structure

• Main Authors: Watanabe, Teruo, Watanabe, Takafumi, Watanabe, Hidemitsu, Watanabe, Hiroyuki
• Format: Patent
• Language: English
• Published: 22.11.2022
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HEATING; HUMAN NECESSITIES; HYGIENE; LIGHTING; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MECHANICAL ENGINEERING; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; RANGES; THEIR RELEVANT APPARATUS; TRANSPORTING; VENTILATING; WEAPONS

A photo catalytic filter is configured such that a plurality of plate-shaped members on which a photocatalyst is carried face each other with a gap therebetween, and the gaps form an air flow path. Each plate-shaped member has end surfaces respectively on an air entrance side and an air exit side of the gap. A UV irradiation unit faces the end surfaces on at least one of the air entrance side and the air exit side of the plate-shaped members, and is a predetermined distance away from those end surfaces. An air supply path for taking air from a lateral direction substantially parallel to the end surfaces, and supplying the air to the flow path, or an air discharge path for discharging the air exiting the flow path to a lateral direction substantially parallel to the end surfaces, is formed between the UV irradiation unit and the end surfaces of the plate-shaped members.