公开(公告)号：US12218489B2

公开(公告)日：2025-02-04

申请号：US18036647

申请日：2021-10-12

Applicant: TEMASEK LIFE SCIENCES LABORATORY LIMITED

Inventor： Kheng Nam Lee ,  Sharvin Kumar S/O N Arjunan ,  Swain Stephen ,  Hean Chuan Fong

IPC: H01T23/00 ,  H01T19/00

Abstract: An exposed electrode negative air ion device, either stand-alone or mounted in an exposed environment 56 as part of a negative air ion panel system 50. Each device comprises: (a) an electronics module 22, the electronics module 22 including a negative voltage generator 22B; and (b) an exposed electrode 10, the exposed electrode 10 including a mat surface 11 of intertwined individual fibres electrically connected to the negative voltage generator 22B. The mat surface 11 has a minimum mean resistance of RMIN to restrict a maximum capacitive current discharge below a capacitive current discharge detection threshold. The negative voltage generator 22B is configured to generate a negative voltage source 23 from a power supply 21 within a set of electrical parameters. The set of electrical parameters includes a maximum preset negative voltage of VMAX and a maximum operating current, the maximum operating current set below or equal to a direct current detection threshold.