US 12,404,667 B2
Sanitary washing device
Saki Yamamura, Kitakyushu (JP); Shuhei Hayata, Kitakyushu (JP); Tomonori Suzuki, Kitakyushu (JP); and Takakuni Yoshida, Kitakyushu (JP)
Assigned to TOTO LTD., Fukuoka (JP)
Filed by TOTO LTD., Kitakyushu (JP)
Filed on May 17, 2023, as Appl. No. 18/318,767.
Claims priority of application No. 2022-097336 (JP), filed on Jun. 16, 2022.
Prior Publication US 2023/0407616 A1, Dec. 21, 2023
Int. Cl. E03D 9/08 (2006.01)
CPC E03D 9/08 (2013.01) 5 Claims
OG exemplary drawing
 
1. A sanitary washing device, comprising:
a nozzle discharging wash water for a private part wash;
a heat exchanger using alternating current power to heat the wash water supplied to the nozzle;
a cold water flow channel supplying the wash water to the heat exchanger from a water supply source;
a switching element switching a supply state of the alternating current power to the heat exchanger;
a control board to which a controller is mounted, the controller being operated by direct current power, the controller controlling the switching element;
a heat transfer plate configured to dissipate heat of the switching element;
a casing storing the nozzle, the heat exchanger, the cold water flow channel, the switching element, the control board, and the heat transfer plate; and
a valve unit located in the cold water flow channel,
the switching element being mounted to the control board,
the cold water flow channel including a cooling part,
the cooling part water-cooling the heat transfer plate,
the casing including a substrate storage part configured to store the control board in an upright state,
the substrate storage part being located at a back part of the casing,
the switching element being mounted to a lower part of the control board,
the heat transfer plate being located at a position at which the heat transfer plate overlaps the valve unit in a longitudinal direction,
the switching element being located at a position at which the switching element overlaps the heat transfer plate in the longitudinal direction.