Heat exchanger
US11396605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2018 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Nov 13, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2265/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchanger is provided that is operated in a cooling operation mode in which a region to be heat-exchanged is cooled by the heat exchanger or in a drying operation mode in which the heat exchanger is supplied with wind from a blowing fan. The heat exchanger includes a refrigerant pipe, a cooling fin coupled to the refrigerant pipe, and a hydrophilic coating coated on a surface of the refrigerant pipe or the cooling fin. The hydrophilic coating includes a first type transition metal oxide which becomes acidic by reacting with moisture formed on the refrigerant pipe or the cooling fin to have antimicrobial activity when the heat exchanger is operated in the cooling operation mode, and a second type transition metal oxide or a post-transition metal oxide which has antimicrobial activity when the heat exchanger is operated in the drying operation mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.