Oven cooking apparatus provided with heat transfer structure

Abstract

The oven cooking apparatus provided with a heat transfer structure according to the present invention has the heat transfer structure mounted on the outer wall of a chamber and is thus convenient to install and simple to construct and has the effect of preventing the deformation or distortion of the chamber because the heat transfer structure securely attaches to the chamber and is also lightweight.

What is claimed is: 
     
         1 . An oven cooking apparatus provided with a heat transfer structure, comprising:
 a chamber surrounded by walls and having a cooking chamber therein;   a heat transfer structure, being bent and extended by a bending part in a state of being mounted on an outer surface of the wall of the chamber to extend over at least two sides of the wall, wherein the heat transfer structure is provided with: a sealing part protruding convexly as its cross-sectional structure; a tightly-contacting part which is bent in an outward direction at an end portion of the sealing part and is in tight contact with the outer surface of the wall; and a heat transfer space, which is a space generated by being surrounded by the sealing part and a portion of the wall; and   a heat-generating module, being mounted on one side of the heat transfer structure, for generating a heat source and transferring heat to the heat transfer space.   
     
     
         2 . The oven cooking apparatus of  claim 1 , wherein:
 the heat-generating module comprises a burner; and   an exhaust hole is formed at an end portion of the extended line of the heat transfer structure.   
     
     
         3 . The oven cooking apparatus of  claim 1 , wherein:
 the heat-generating module comprises an electric heater;   the heat transfer space comprises an electric heating wire which is connected thereto and extending from the electric heater; and   the heat transfer structure comprises a fixing member extending from the inner side surface to fixedly support the electric heating wire.   
     
     
         4 . The oven cooking apparatus of  claim 3 , wherein the heat transfer structure further comprises:
 a support which, being extended to a certain length, is in close contact with one side of the sealing part and one side of the wall covered by the sealing part, respectively; and   a supporter beam formed of supporters that connect a central portion of the supporters.   
     
     
         5 . The oven cooking apparatus of  claim 1 , wherein the sealing part is comprised of a parallel surface extending in parallel with the wall and coming into close contact with the auxiliary wall; and a vertical surface which is vertically bent at both ends of the parallel side, respectively, and extended up to the wall. 
     
     
         6 . The oven cooking apparatus of  claim 5 , wherein the heat transfer structure further comprises:
 an attachment part which is attached to an outer surface of the wall while being bent and extended in an outward direction at each end portion of the vertical surface of the sealing part; and   a bending part which is bent and extended in an outward direction at an end portion of the attachment part.   
     
     
         7 . The oven cooking apparatus of  claim 1 , wherein the bending part, being formed of inner and outer bending lines, comprises:
 a first curvature extension part, wherein the inner bending line is extended at a radius of curvature lower than that of the corresponding portion of the outer bending line, at a first inflection point where the bending process starts; and   a second curvature extension part, which is extended at a radius of curvature lower than that of the first curvature extension part, at each second inflection point that is an end portion of the first curvature extension part,   whereby the width of a portion where the first and second curvature extension parts are formed in the bending part is greater than the width of other portions of the heat transfer structure.   
     
     
         8 . An oven cooking apparatus provided with a heat transfer structure, comprising:
 a chamber surrounded by walls and having a cooking chamber therein;   a heat transfer structure, being bent and extended by a bending part in a state of being mounted on an outer surface of the wall of the chamber in one pair with a certain width to extend over at least two sides of the wall, wherein the heat transfer structure is provided with: a sealing part protruding convexly as its cross-sectional structure; a tightly-contacting part which is bent in an outward direction at an end portion of the sealing part and is in tight contact with the outer surface of the wall; and a buffer space, which is a space generated by being surrounded by the sealing part and a portion of the wall;   a heat transfer space, which is a space generated between the heat transfer structures extended in one pair,   an auxiliary wall, being served as an outer wall that covers the heat transfer space at a predetermined interval from the wall, which forms an upper sealed surface of the heat transfer space while being in contact with the sealing part; and   a heat-generating module, being mounted on one side of the heat transfer space, for generating a heat source and transferring heat to the heat transfer space.   
     
     
         9 . The oven cooking apparatus of  claim 8 , wherein:
 the heat-generating module comprises a burner; and   an exhaust hole is formed at an end portion of the extended line of the heat transfer structure.   
     
     
         10 . The oven cooking apparatus of  claim 8 , wherein:
 the heat-generating module comprises an electric heater; and   the heat transfer space comprises an electric heating wire which is connected thereto and extending from the electric heater; and a fixing member extending from the inner side surface of the auxiliary wall to fixedly support the electric heating wire.   
     
     
         11 . The oven cooking apparatus of  claim 10 , wherein the heat transfer structure further comprises:
 a support which, being extended to a certain length, is in close contact with one side of the sealing part and one side of the wall covered by the sealing part, respectively; and   a supporter beam formed of supporters that connect a central portion of the supporters.   
     
     
         12 . The oven cooking apparatus of  claim 8 , wherein the sealing part is comprised of a parallel surface extending in parallel with the wall and coming into close contact with the auxiliary wall; and a vertical surface which is vertically bent at both ends of the parallel side, respectively, and extended up to the wall. 
     
     
         13 . The oven cooking apparatus of  claim 12 , wherein the heat transfer structure further comprises:
 an attachment part which is attached to an outer surface of the wall while being bent and extended in an outward direction at each end portion of the vertical surface of the sealing part; and   a bending part which is bent and extended in an outward direction at an end portion of the attachment part.   
     
     
         14 . The oven cooking apparatus of  claim 8 , wherein the bending part, being formed of inner and outer bending lines, comprises:
 a first curvature extension part, wherein the inner bending line is extended at a radius of curvature lower than that of the corresponding portion of the outer bending line, at a first inflection point where the bending process starts; and   a second curvature extension part, which is extended at a radius of curvature lower than that of the first curvature extension part, at each second inflection point that is an end portion of the first curvature extension part,   whereby the width of a portion where the first and second curvature extension parts are formed in the bending part is greater than the width of other portions of the heat transfer structure.