THERMAL ELECTRONIC RELAY FOR FREEZERS Russian patent published in 2006 - IPC G05D23/01 

FIELD: cooling equipment, engineering of freezers.

SUBSTANCE: thermal relay for freezers has, positioned in body: transfer lever, thermal-sensitive resilient element, spring for adjusting operation temperature, cam, crawler, electric-insulating block with mobile and immobile electric contacts of emergency signaling, mobile and immobile electric contacts of main switch, mobile and immobile electric contacts of additional switch, rod for switching mobile and immobile electric contacts of emergency signaling, traction for switching mobile and immobile electric contacts of additional switch, rigidly connected to crawler. Transfer lever interacts with thermal-sensitive resilient element, spring for adjusting operation temperature, to mobile electric contact of main switch, crawler is in contact with cam, rod interacts by one end with transfer lever, by other end - with mobile electric contact of emergency signaling. In electric-insulation block additionally held are mobile and immobile electric contacts of additional signaling, while immobile electric contact of additional signaling is rigidly connected to immobile electric contact of emergency signaling, to immobile electric contacts of main and additional switches, and mobile electric contact of additional signaling interacts with crawler by means of shelf.

EFFECT: expanded functional capabilities of thermal relay for freezers due to realization of four functions execution - temperature adjustment, emergency temperature increase signaling alarm, fast freezing mode signaling alarm, disabling of all electric circuits of freezer.

1 dwg