US 11,747,021 B2
Gas cooktop
Weiwei Miao, Nanjing (CN); Rui Xu, Nanjing (CN); and Weihong Zhu, Nanjing (CN)
Assigned to BSH Hausgeräte GmbH, Munich (DE)
Appl. No. 16/772,261
Filed by BSH Hausgeräte GmbH, Munich (DE)
PCT Filed Nov. 26, 2018, PCT No. PCT/IB2018/059295
§ 371(c)(1), (2) Date Jun. 12, 2020,
PCT Pub. No. WO2019/130129, PCT Pub. Date Jul. 4, 2019.
Claims priority of application No. 201711454100.1 (CN), filed on Dec. 27, 2017.
Prior Publication US 2021/0088220 A1, Mar. 25, 2021
Int. Cl. F24C 3/12 (2006.01); F23N 1/00 (2006.01)
CPC F24C 3/126 (2013.01) [F23N 1/005 (2013.01); F23D 2208/10 (2013.01); F23N 2229/20 (2020.01); F23N 2235/14 (2020.01); F23N 2235/16 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A gas cooktop, comprising:
a cooktop body including a burner head which when activated generates a fire for heating cookware placed on the burner head; and
a control system including a fire detection apparatus installed over the burner head and aligned with the burner head, and a control apparatus configured to receive a signal of the fire detection apparatus and to control the fire of the burner head,
said control apparatus configured to:
determine, depending on whether the signal indicates the fire detection apparatus detects the fire of the burner head, whether cookware is placed on the burner head;
control the fire of the burner head to be adjusted to a maximum when the control apparatus determines a presence of the cookware on the burner head in response to the signal of the fire detection apparatus;
control the fire of the burner head to be adjusted to a minimum when the control apparatus determines an absence of the cookware on the burner head in response to the signal of the fire detection apparatus; and
control the fire of the burner head to be adjusted to recover to a last level of the fire of the burner head when, after the control apparatus determines the absence of the cookware on the burner head and adjusts the fire of the burner head to the minimum, the control apparatus determines the presence of the cookware on the burner head in response to the signal of the fire detection apparatus; and
said fire detection apparatus is configured to determine, depending on whether the signal indicates the fire detection apparatus detects the fire of the burner head exists in a central area of the burner head, whether cookware is placed on the burner head.