Air heating apparatus

Abstract

An air heating apparatus includes an expansion tank that stores water, a water heating device that receives heat from combustion gas generated by a combustion reaction and heats the water, a heating heat exchanger that receives the water heated by the water heating device and conducts heat exchange between air to be released for heating and the water, a fan that supplies the air to the heating heat exchanger, and a case in which the water heating device, the expansion tank, the heating heat exchanger, and the fan are disposed. The case includes an outer box, a first partition wall that is coupled to the outer box and that extends in a reference direction to divide the inside of the outer box into a first partition space and a second partition space, a second partition wall disposed in the first partition space, and a third partition wall.

What is claimed is: 
     
         1 . An air heating apparatus comprising:
 an expansion tank configured to store water;   a water heating device configured to receive heat from combustion gas generated by a combustion reaction and heat the water;   a heating heat exchanger configured to receive the water heated by the water heating device and conduct heat exchange between air to be released for heating and the water;   a fan configured to supply the air to the heating heat exchanger; and   a case in which the water heating device, the expansion tank, the heating heat exchanger, and the fan are disposed,   wherein the case includes:   an outer box;   a first partition wall coupled to the outer box and configured to extend in a reference direction to divide the inside of the outer box into a first partition space and a second partition space;   a second partition wall disposed in the first partition space so as to be perpendicular to the first partition wall; and   a third partition wall disposed in the second partition space so as to be perpendicular to the first partition wall, and   wherein the expansion tank and the fan are coupled to the third partition wall.   
     
     
         2 . The air heating apparatus of  claim 1 , wherein the third partition wall divides the second partition space into a second-first partition space and a second-second partition space,
 wherein the second-first partition space is located in the reference direction with respect to the second-second partition space,   wherein the expansion tank is disposed in the second-first partition space, and   wherein the fan is disposed in the second-second partition space.   
     
     
         3 . The air heating apparatus of  claim 1 , wherein the second partition space is disposed below the first partition space. 
     
     
         4 . The air heating apparatus of  claim 2 , further comprising:
 a support member having one end portion coupled to the third partition wall and an opposite end portion connected to the fan to support the fan upward.   
     
     
         5 . The air heating apparatus of  claim 4 , wherein a direction perpendicular to an up-down direction and the reference direction is referred to as a separation direction,
 wherein the support member includes a pair of support members, and the pair of support members are spaced apart from each other in the separation direction, and   wherein the air heating apparatus further comprises a rib member configured to extend in the separation direction and connect the pair of support members to each other.   
     
     
         6 . The air heating apparatus of  claim 4 , further comprising:
 a coupling member coupled to the opposite end portion of the support member and brought into contact with a lower surface of an end portion of the fan configured to face in the reference direction,   wherein the coupling member includes:   a first coupling part brought into contact with the lower surface of the end portion of the fan configured to face in the reference direction;   a second coupling part configured to protrude from the first coupling part in a direction opposite to the reference direction; and   a third coupling part configured to protrude upward from an end portion of the second coupling part configured to face in the direction opposite to the reference direction, and   wherein the second coupling part penetrates the support member.   
     
     
         7 . The air heating apparatus of  claim 6 , further comprising:
 a fastening bolt configured to penetrate the third coupling part and the support member and fasten the third coupling part and the opposite end portion of the support member.   
     
     
         8 . The air heating apparatus of  claim 6 , wherein the second coupling part and the third coupling part are connected with each other so as to be bent. 
     
     
         9 . The air heating apparatus of  claim 2 , further comprising:
 a protruding member coupled to the fan and configured to protrude from the fan in the reference direction and penetrate the third partition wall.   
     
     
         10 . The air heating apparatus of  claim 9 , wherein a direction perpendicular to an up-down direction and the reference direction is referred to as a separation direction, and
 wherein the protruding member includes:   an extending region configured to extend in the reference direction; and   a grip region configured to protrude in the separation direction or a direction opposite to the separation direction from an end portion of the extending region in the reference direction.   
     
     
         11 . The air heating apparatus of  claim 10 , wherein the protruding member further includes:
 a contact region configured to protrude from the extending region in the separation direction or the direction opposite to the separation direction and brought into contact with a side of the third partition wall configured to face in a direction opposite to the reference direction.   
     
     
         12 . The air heating apparatus of  claim 10 , wherein the protruding member further includes an outer protruding region configured to protrude outside the fan when viewed from above, and
 wherein the air heating apparatus further comprises a seating member coupled to a lower side of the first partition wall so as to have a separation space in the up-down direction between the first partition wall and the seating member, the seating member being coupled to a position corresponding to the outer protruding region, wherein the outer protruding region is seated on the seating member.   
     
     
         13 . The air heating apparatus of  claim 12 , wherein an end portion of the seating member in the reference direction is formed to be inclined downward. 
     
     
         14 . The air heating apparatus of  claim 9 , wherein the protruding member includes a pair of protruding members, and the expansion tank is disposed between the pair of protruding members. 
     
     
         15 . The air heating apparatus of  claim 1 , wherein the outer box has a first opening formed on one side thereof in the reference direction perpendicular to an up-down direction, and
 wherein the case further includes:   a first opening cover configured to cover the first opening; and   a cover coupling member coupled to one side of the first partition wall configured to face in the reference direction, the cover coupling member being configured such that the first opening cover is fastened to a downwardly extending region configured to extend downward.   
     
     
         16 . The air heating apparatus of  claim 15 , wherein a protruding region configured to protrude upward is formed on the first partition wall, and
 wherein an assembly guide hole recessed to correspond to a shape of one side of the protruding region in the reference direction is formed on one side of the cover coupling member configured to face in a direction opposite to the reference direction.