Heater unit

Abstract

A heater unit for heating equipment is provided which includes: a heater housing disposed on a bottom portion of the equipment in such a manner as to firmly stick thereto and having a heat source; a buffer space portion formed between the bottom portion of the equipment and an upper portion of the heater housing for equalizing heat generated in the heater housing; and a plurality of heating modules disposed in a dispersed fashion within the heater housing.

1 . A heater unit for heating equipment comprising: 
 a heater housing disposed on a bottom portion of the equipment in such a manner as to firmly stick thereto and having a heat source;    a buffer space portion formed between the bottom portion of the equipment and an upper portion of the heater housing for equalizing heat generated in the heater housing; and    a plurality of heating modules disposed in a dispersed fashion within the heater housing.    
   
   
       2 . A heater unit as set forth in  claim 1 , wherein the heating module includes a printed substrate on which at least one heating component is installed.  
   
   
       3 . A heater unit as set forth in  claim 2 , wherein the printed substrate is connected to a base substrate disposed on an inner circumferential wall of the heater housing via a connector.  
   
   
       4 . A heater unit as set forth in  claim 3 , wherein a heat insulating member is disposed on the inner circumferential wall of the heater housing which faces the base substrate.  
   
   
       5 . A heater unit as set forth in  claim 2 , wherein the printed substrates are disposed in a dispersed fashion in order to adjust a heat distribution within the heater housing.  
   
   
       6 . A heater unit as set forth in  claim 1 , wherein vent holes are formed in the upper portion and the bottom portion of the heater housing.  
   
   
       7 . A heater unit as set forth in  claim 5 , wherein locations of the printed substrates are not at equal intervals but are made coarse at center and dense at both ends of the heater housing.  
   
   
       8 . A heater unit as set forth in  claim 5 , wherein the number of the heating components installed in each of the printed substrates located at center of the heater housing is made smaller than that of the heating components installed in each of the printed substrates located at both ends of the heater housing.  
   
   
       9 . A heater unit as set forth in  claim 1 , wherein the buffer space portion is a space which is surrounded by upper side walls of the heater housing.