US 12,240,010 B2
Effective component generation device
Motoji Kawasaki, Shiga (JP); Kouiti Hirai, Shiga (JP); Mikio Ito, Shiga (JP); and Yutaka Uratani, Shiga (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/618,270
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Jun. 18, 2020, PCT No. PCT/JP2020/023999
§ 371(c)(1), (2) Date Dec. 10, 2021,
PCT Pub. No. WO2020/262197, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019-119110 (JP), filed on Jun. 26, 2019; and application No. 2019-133151 (JP), filed on Jul. 18, 2019.
Prior Publication US 2022/0347701 A1, Nov. 3, 2022
Int. Cl. B05B 5/03 (2006.01); B05B 5/00 (2006.01)
CPC B05B 5/03 (2013.01) [B05B 5/001 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An effective component generation device comprising:
an internal device including a discharger that generates an effective component;
a case having a box shape having a discharge port through which the effective component is discharged, the case housing the internal device; and
an air passage member that is housed in the case and surrounds the discharger, wherein:
the internal device further includes an air blower that generates an air flow for outputting the effective component from the discharge port to an outside of the case, and the air passage member includes an upstream block forming an air supply passage on an upstream side as viewed from the air blower, and a downstream block forming an air discharge passage on a downstream side as viewed from the air blower,
the upstream block and downstream block are integrally formed,
the air supply passage and the air discharge passage are located in the case to form an air passage through which the air flow passes,
the air passage member forms a sound attenuating chamber housing the discharger,
the sound attenuating chamber is configured to reduce a discharge sound generated in the discharger by using a resonance phenomenon when the effective component is generated, and
a distance D1 between a pair of wall surfaces provided in the sound attenuating chamber so as to face each other with the discharger interposed therebetween is expressed by using a wavelength λ of the discharge sound and an integer n, as D1≈(1/4+n/2)×λ.