ZERO-INCREMENT POWER REGULATOR Russian patent published in 1998 - IPC

FIELD: clipping given temperature node in electric heating appliances, in particular, stationary and mobile electric ovens. SUBSTANCE: device has insulators 1, 2 which carry sensitive bimetal element 4 which is attached as cantilever by means of hollow rivet 3. In addition device has plate 5 which has U-shaped cut, plate 6 which carries stationary contact 7, contact 8, cramp 9. Sensitive element 4 is connected to contact terminal 11. Loose end of element 4 is connected to contact terminal 11. Insulating member 12 is inserted between sensitive element 4 and plate 5. Contact holder 13 and plate 5 shape spring system which provides instantaneous opening and closing of contacts 7, 14. Regulation mechanism comprises screw 17 and rest 18 from insulating material which is mounted on lug 16. Nichrome spiral 23 covers middle part of sensitive element 4. Cramp 9 has two side bends 25 for connection to mounting cantilever 26. Screw 17 is passed through hole 27 in cantilever flange 28. Device is mounted to front panel of electric oven by means of cantilever. EFFECT: increased regulation speed and sensitivity. 2 cl, 6 dwg