Electric iron with a synchronizing temperature display

Abstract

An electric iron includes a control panel, a circuit board, and a temperature sensor provided on a soleplate. The temperature sensor is connected to the circuit board which is in turn connected to the control panel. The control panel includes a synchronizing temperature display, a temperature setting button, and a plurality of temperature setting indicators. The temperature setting button is employed to set a desired temperature, and the synchronizing temperature display is employed to indicate the actual temperature at the soleplate during ironing.

1 . An electric iron comprising:
 a soleplate;   a heating element mounted on the soleplate;   a temperature sensor for measuring temperature of the soleplate; and   a temperature display coupled to the temperature sensor for synchronously displaying the temperature at the soleplate;   wherein the soleplate has a collar extending upwardly from an inner surface of the soleplate and encompassing the temperature sensor, and the heating element is extending on the soleplate between an edge of the soleplate and the collar wherein at least a portion of the heating element is disposed proximate to the collar.   
     
     
         2 . The electric iron as claimed in  claim 1 , wherein the heating element comprises a first section extending between a first edge of the soleplate and one side of the collar, and a second section extending between a second edge of the soleplate and an opposite side of the collar, and wherein a middle portion of each of the first and second sections of the heating element bends towards the collar. 
     
     
         3 . The electric iron as claimed in  claim 1 , wherein the collar is generally oval in shape. 
     
     
         4 . The electric iron as claimed in  claim 1 , further comprising a circuit board connecting between the temperature display and the temperature sensor. 
     
     
         5 . The electric iron as claimed in  claim 4 , wherein the circuit board comprises a microcontroller unit for controlling the temperature at the soleplate and the synchronous display of the temperature on the temperature display. 
     
     
         6 . The electric iron as claimed in  claim 1 , further comprising a control panel which includes a temperature setting button for setting a plurality of temperature ranges, and a plurality of temperature setting indicators for indicating the modes of the temperature setting. 
     
     
         7 . The electric iron as claimed in  claim 6 , wherein the plurality of temperature ranges includes a temperature range of about 90-120° C. suitable for ironing silk, a temperature range of 120-150° C. suitable for ironing polyester, a temperature range of about 150-200° C. suitable for ironing cotton, and a temperature range of about 200-230° C. suitable for ironing linen. 
     
     
         8 . The electric iron as claimed in  claim 1 , wherein the temperature sensor is disposed in a bore formed on an inner surface of the soleplate at a center thereof. 
     
     
         9 . The electric iron as claimed in  claim 1 , wherein the temperature sensor is a negative temperature coefficient temperature sensor. 
     
     
         10 . An electric iron comprising:
 a soleplate;   a temperature sensor for measuring temperature of the soleplate; and   a temperature display coupled to the temperature sensor for synchronously displaying the temperature at the soleplate.   
     
     
         11 . The electric iron as claimed in  claim 10 , wherein the soleplate has collar extending upwardly from an inner surface of the soleplate and encompassing the temperature sensor. 
     
     
         12 . The electric iron as claimed in  claim 11 , further comprising a heating element extending on the soleplate between an edge of the soleplate and the collar, wherein at least a portion of the heating element is disposed proximate to the collar. 
     
     
         13 . The electric iron as claimed in  claim 12 , wherein the heating element comprises a first section extending between a first edge of the soleplate and one side of the collar, and a second section extending between a second edge of the soleplate and an opposite side of the collar, and wherein a middle portion of each of the first and second sections of the heating element bends towards the collar. 
     
     
         14 . The electric iron as claimed in  claim 11 , wherein the collar is generally oval in shape. 
     
     
         15 . The electric iron as claimed in  claim 10 , further comprising a circuit board connecting between the temperature display and the temperature sensor. 
     
     
         16 . The electric iron as claimed in  claim 15 , wherein the circuit board comprises a microcontroller unit for controlling the temperature at the soleplate and the synchronous display of the temperature on the temperature display. 
     
     
         17 . The electric iron as claimed in  claim 10 , further comprising a control panel which includes a temperature setting button for setting a plurality of temperature ranges, and a plurality of temperature setting indicators for indicating the modes of the temperature setting. 
     
     
         18 . The electric iron as claimed in  claim 17 , wherein the plurality of temperature ranges includes a temperature range of about 90-120° C. suitable for ironing silk, a temperature range of 120-150° C. suitable for ironing polyester, a temperature range of about 150-200° C. suitable for ironing cotton, and a temperature range of about 200-230° C. suitable for ironing linen. 
     
     
         19 . The electric iron as claimed in  claim 10 , wherein the temperature sensor is disposed in a bore formed on an inner surface of the soleplate at a center thereof. 
     
     
         20 . The electric iron as claimed in  claim 10 , wherein the temperature sensor is a negative temperature coefficient temperature sensor.