Condensed water drain structure

Abstract

A condensed water drain structure includes an air conditioning case having an evaporator and a drain for draining condensed water from inside the air case to the exterior of a vehicle body. A drain cap mounted on the drain has a head with a hole for draining condensed water. The hole is shaped as a slot having a height difference toward the air conditioning case in an axial direction of the head. The condensed water is smoothly drained even though there is a narrow space between a plate in the case and structure external to the case, to prevent vehicle exhaust gas or smoke from entering of the vehicle body.

1 . A condensed water drain structure, which includes an air conditioning case having an evaporator and a drain part therein, and drain means for draining condensed water contained inside the air conditioning case to the outside of a vehicle body,
 wherein the drain means is a drain cap mounted on the drain part of the air conditioning case and having a head, the head having a drain hole for draining condensed water, and   wherein the drain hole is in the form of a slot having a height difference toward the air conditioning case in an axial direction of the head.   
   
   
       2 . The condensed water drain structure according to  claim 1 , wherein the drain cap further includes a cylindrical body located between the head and the drain part of the air conditioning case, and the head is in the form of a hemisphere. 
   
   
       3 . The condensed water drain structure according to  claim 1 , wherein the drain means further includes a protector mounted on the air conditioning case in such a way that a portion of the protector protrudes to the outside of a plate member forming the lower part of the vehicle body to thereby protect the drain cap. 
   
   
       4 . The condensed water drain structure according to  claim 1 , wherein the head of the drain cap is formed integrally with the drain part of the air conditioning case. 
   
   
       5 . The condensed water drain structure according to  claim 4 , wherein the drain means further includes a protector formed on the drain part of the air conditioning in such a way as to surround the drain cap to protect the drain cap. 
   
   
       6 . The condensed water drain structure according to  claim 5 , wherein the drain means further includes a seal member seated between the drain cap and the protector. 
   
   
       7 . The condensed water drain structure according to  claim 6 , wherein the protector includes a fixing ring spaced apart from the head of the drain cap at a predetermined interval for supporting the inside of the seal member. 
   
   
       8 . The condensed water drain structure according to  claim 5 , wherein the protector is formed at a height lower than the head of the drain cap. 
   
   
       9 . The condensed water drain structure according to  claim 3 , wherein the protector includes a support portion spaced apart from the drain cap at a predetermined interval in such a way as to surround the drain cap. 
   
   
       10 . The condensed water drain structure according to  claim 9 , wherein the protector includes a number of ribs disposed between the support portion and the head of the drain cap for preventing deformation of the support portion. 
   
   
       11 . The condensed water drain structure according to  claim 5 , wherein the protector includes a support portion spaced apart from the drain cap at a predetermined interval and surrounding the drain cap. 
   
   
       12 . The condensed water drain structure according to  claim 11 , wherein the protector includes a number of ribs disposed between the support portion and the head of the drain cap for preventing deformation of the support portion.