US 11,703,253 B2Granted

Water heating apparatus and method for controlling the apparatus

AssigneeKyungdong Navien Co., Ltd.

InventorsChang Heoi Heo, Yong Min Song, Nam Soo Do

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Abstract

A water heating apparatus includes a sensor to detect an inflow water amount flowing into the water heating apparatus, and a controller to determine connection or disconnection between the water heating apparatus and a water storage tank, based on the inflow water amount flowing into the water heating apparatus for a preset time duration. Thus, the water heating apparatus determines whether or not the water storage tank is connected thereto based on the amount of inflow water introduced into the water heating apparatus. Then, the water heating apparatus determines the operation mode of the water heating apparatus based on the determination result. Thus, even when the user incorrectly sets the operation mode of the water heating apparatus, the water heating apparatus may actively and correctly operate.

Claims16

Dependent claims

A water heating apparatus comprising:

a sensor configured to detect an inflow water amount flowing into the water heating apparatus;
and
a controller configured to determine connection or disconnection between the water heating apparatus and a water storage tank, based on the inflow water amount flowing into the water heating apparatus for a preset time duration,
wherein the controller is configured to:
detect the inflow water amount per unit time;
obtain inflow water amounts detected per the unit time for a predefined time;
and
calculate an average inflow water a mount based on the inflow water amounts acquired for the predefined time;
calculate the average inflow water amount each time the predefined time has elapsed for the preset time duration and thus calculate a N-th average inflow water amount corresponding to a N-th period of the preset time duration;
and
calculate N-th maximum inflow water and minimum inflow water a mounts when the preset time duration has elapsed, based on a (N−2)-th average inflow water a mount, a (N−1)-th minimum inflow water amount, and a (N−1)-th maximum inflow water amount.

8 more elements

A method for controlling a water heating apparatus, the method comprising:

detecting an inflow water amount flowing into the water heating apparatus;
and
determining connection or disconnection between the water heating apparatus and a water storage tank, based on the inflow water a mount flowing into the water heating apparatus for a preset time duration,
wherein the method further comprises:
after the detecting of the inflow water a mount flowing into the water heating apparatus, obtaining inflow water a mounts detected per unit time for a predefined time;
calculating an average inflow water amount based on the inflow water amounts acquired for the predefined time;
after the calculating of the average inflow water amount,
calculating the average inflow water amount each time the predefined time has elapsed for the preset time duration and thus calculating a N-th average inflow water amount corresponding to a N-th period of the preset time duration;
and
calculating N-th maximum inflow water and minimum inflow water amounts when the preset time duration has elapsed, based on a (N−2)-th average inflow water amount, a (N−1)-th minimum inflow water amount, and a (N−1)-th maximum inflow water amount.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/130,763Filed 22 Dec 2020
Priority: KR 10-2019-017430024 Dec 2019
Published: US 2021/0190377 A124 Jun 2021
Granted: 18 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

F24H 9/2007
Arrangement or mounting of control or safety devices: for water heaters
F24H 1/12
Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the…:…
F24H 15/238
Characterised by control inputs: flow rate
F24D 3/02
Hot-water central heating systems: with forced circulation, e.g. by pumps