Water area apparatus

Patent metadata

Field	Value
Publication number	US-11239748-B2
Application number	US-202016829153-A
Country	US
Kind code	B2
Filing date	Mar 25, 2020
Priority date	Mar 29, 2019
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A water area apparatus according to one aspect of embodiments includes: a first device; a second device whose power consumption is smaller than that of the first device; a Power Factor Correction (PFC) circuit that is connected to an Alternating-Current power supply, reduces harmonic current, and steps up a voltage to output the stepped-up voltage; and a regulator that is connected to the PFC circuit and steps down a voltage to obtain a constant voltage, wherein the voltage stepped up by the PFC circuit is applied to the first device, and the voltage stepped down by the regulator is applied to the second device.

First claim

What is claimed is:

1. A water area apparatus comprising:
a first device;
a second device whose power consumption is smaller than that of the first device;
a power factor correction (PFC) circuit that is connected to an alternating-current power supply, reduces harmonic current, and steps up a voltage to output the stepped-up voltage; and
a regulator that is connected to the PFC circuit and steps down a voltage to obtain a constant voltage, wherein
the voltage stepped up by the PFC circuit is applied to the first device, and
the voltage stepped down by the regulator is applied to the second device.

2. The water area apparatus according to claim 1 , wherein
the first device is a motor that drives a pump for pressure-feeding flush water to a toilet body.

3. The water area apparatus according to claim 2 , further comprising:
a detection unit that detects a rotation speed of the motor; and
a control unit that controls output of the motor so that the detected rotation speed of the motor is close to a target rotation speed the motor.

4. The water area apparatus according to claim 1 , wherein
the first device is a warm-water heater that heats washing water to be spouted from a private-part washing nozzle.

5. The water area apparatus according to claim 1 , wherein
the first device is a toilet-seat heater that heats a seating surface of a toilet seat.

Assignees

• Toto Ltd

Inventors

• Higashida Madoka
• Kawahara Kandai

Classifications

• H02M1/4225 Primary

  using a non-isolated boost converter · CPC title

• A47K13/305 Primary

  Seats with heating devices · CPC title

• E03D9/08 Primary

  Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices (showers A47K3/28; bathing devices for special therapeutic or hygienic purposes A61H33/00, for specific parts of the body A61H35/00 ){; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting} · CPC title

• H02P23/26

  Power factor control [PFC] · CPC title

• E03D5/01

  using flushing pumps · CPC title