US 12,276,422 B2
Thermoelectric safety assembly
Andoni Unanue Imaz, Idiazabal (ES); Mikel Arizmendi Zurutuza, Ordizia (ES); Juan Herzog Delgado, Ordizia (ES); and Marcos Pablo Curto, Hernani (ES)
Assigned to ORKLI, S.COOP., Ordizia (ES)
Filed by ORKLI, S.COOP., Ordizia (ES)
Filed on Jul. 6, 2022, as Appl. No. 17/858,576.
Application 17/858,576 is a continuation of application No. PCT/ES2021/070004, filed on Jan. 8, 2021.
Claims priority of application No. 20382004 (EP), filed on Jan. 8, 2020.
Prior Publication US 2022/0341593 A1, Oct. 27, 2022
Int. Cl. F23N 5/24 (2006.01); H01F 7/06 (2006.01); H03K 17/687 (2006.01)
CPC F23N 5/245 (2013.01) [H01F 7/064 (2013.01); H03K 17/687 (2013.01); F23N 2229/00 (2020.01); F23N 2235/14 (2020.01)] 8 Claims
OG exemplary drawing
 
1. A thermoelectric safety assembly comprising:
a thermocouple configured to detect a flame generated by a burner and to produce an electrical voltage in response to detecting the flame;
an electromagnetic valve electrically coupled to the thermocouple and configured to allow a passage of gas towards the burner when the electromagnetic valve is energized by the thermocouple;
a field-effect transistor electrically connected between the thermocouple and the electromagnetic valve and transitional between an open state and a closed state, in the open state a current generated by the thermocouple is not allowed to pass through the field-effect transistor, in the closed state the current generated by the thermocouple is allowed to pass through the field-effect transistor, the electromagnetic valve being electrically coupled to the field-effect transistor; and
a voltage booster configured to power the field-effect transistor and being connected in parallel with the field-effect transistor, an output terminal of the voltage booster being arranged connected with a gate terminal of the field-effect transistor, the voltage booster being configured to boost the electrical voltage generated in the thermocouple so that the electrical voltage is sufficient to cause the field-effect transistor to assume the closed state to allow a current to flow from the thermocouple through the field-effect transistor to energize the electromagnetic valve.