US 12,218,489 B2
Exposed electrode negative air ion device with fibrous mat surface mountable in an exposed environment
Kheng Nam Lee, Singapore (SG); Sharvin Kumar S/O N Arjunan, Singapore (SG); Swain Stephen, Singapore (SG); and Hean Chuan Fong, Singapore (SG)
Assigned to TEMASEK LIFE SCIENCES LABORATORY LIMITED, Singapore (SG)
Appl. No. 18/036,647
Filed by TEMASEK LIFE SCIENCES LABORATORY LIMITED, Singapore (SG)
PCT Filed Oct. 12, 2021, PCT No. PCT/SG2021/050615
§ 371(c)(1), (2) Date May 12, 2023,
PCT Pub. No. WO2022/103327, PCT Pub. Date May 19, 2022.
Claims priority of application No. 10202011322W (SG), filed on Nov. 13, 2020.
Prior Publication US 2023/0420920 A1, Dec. 28, 2023
Int. Cl. H01T 23/00 (2006.01); H01T 19/00 (2006.01)
CPC H01T 23/00 (2013.01) [H01T 19/00 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An exposed electrode negative air ion device, the device comprising:
(a) an electronics module including an input port, a negative voltage generator, and an output port,
(i) wherein the input port is configured to electrically receive a power supply and electrically route the power supply to the negative voltage generator;
(ii) wherein the negative voltage generator is configured to:
(1) generate a negative voltage source from the power supply; and
(2) output the negative voltage source to the output port within a set of electrical parameters; and
(iii) wherein the set of electrical parameters includes:
(1) a maximum preset negative voltage of VMAX; and
(2) a maximum operating current, the maximum operating current set below or equal to a direct current detection threshold; and
(b) an exposed electrode, the exposed electrode including a mat surface of intertwined individual fibres,
(i) wherein the mat surface of the exposed electrode is directly or indirectly electrically connected to the output port of the electronics module at one or more electrical connection points 13; and
(ii) wherein the mat surface has a minimum mean resistance of RMIN, as measured during a discharge event between the output port of the electronics module and a measurement probe, the measurement probe tipped with a polished stainless steel sphere having a diameter of twenty millimetres, where:

OG Complex Work Unit Math