US 10,368,398 B2
Bimetal thermal element and the manufacturing method thereof
Bernard Bizard, Grenoble (FR)
Assigned to Schneider Electric Industries SAS, Rueil Maimaison (FR)
Appl. No. 14/236,680
Filed by Bernard Bizard, Grenoble (FR)
PCT Filed Mar. 6, 2012, PCT No. PCT/EP2012/053814
§ 371(c)(1), (2), (4) Date Feb. 3, 2014,
PCT Pub. No. WO2013/017294, PCT Pub. Date Feb. 7, 2013.
Claims priority of application No. 2011 1 0221464 (CN), filed on Aug. 3, 2011.
Prior Publication US 2014/0166639 A1, Jun. 19, 2014
Int. Cl. H05B 3/02 (2006.01); H01H 69/00 (2006.01); H01H 71/16 (2006.01); H01H 61/013 (2006.01)
CPC H05B 3/02 (2013.01) [H01H 69/00 (2013.01); H01H 71/164 (2013.01); Y10T 29/49083 (2015.01)] 21 Claims
OG exemplary drawing
 
1. A bimetal thermal element adapted to assembling into a support, comprising:
a bimetal strip having a first end, a second end opposite to the first end, and a notch formed at the first end;
a heater made of a resistant strip including a linear portion and a wound portion, wherein the linear portion is straight and extending from a starting position near the second end of the bimetal strip to the notch in a direction parallel to a side of the bimetal strip and the wound portion of the resistant strip is folded around the notch of the bimetal strip so as to wind around the bimetal strip and the linear portion of the resistant strip; and
an insulating device to insulate the bimetal strip from the heater.