Ventilated mattress and bed comprising ventilated mattress

Abstract

A ventilated mattress for a bed minimizes the leakage of external air, having flowed in from the outside, through a portion other than ventilation holes, and thus has improved ventilation performance.

1 - 16 . (canceled) 
     
     
         17 . A mattress having an inlet hole formed in a lower part thereof and a plurality of ventilation holes formed in an upper part thereof, the mattress comprising:
 a lower frame having the inlet hole therein;   a first fabric layer being spaced apart from an upper surface of the lower frame by a preset distance and having an inner space formed between the lower frame and the first fabric layer;   a second fabric layer disposed to surround upper and outer surfaces of the first fabric layer, an outer surface of the inner space and an outer surface of the lower frame; and   a foam layer disposed on the second fabric layer,   wherein the plurality of ventilation holes is formed while vertically penetrating the foam layer, the second fabric layer, and the first fabric layer, and   external air flowed in through the inlet hole is discharged through the inner space and the plurality of ventilation holes.   
     
     
         18 . The mattress of  claim 17 , wherein the ventilation holes comprise:
 a first ventilation hole penetrating the first fabric layer and the second fabric layer; and   a second ventilation hole vertically aligned with the first ventilation hole and penetrating the foam layer, and   a diameter of the first ventilation hole is less than a diameter of the second ventilation hole.   
     
     
         19 . The mattress of  claim 18 , wherein a center point on a cross section of the first ventilation hole and a center point on a cross section of the second ventilation hole are vertically aligned. 
     
     
         20 . The mattress of  claim 17 , wherein the second fabric layer is formed of a non-air permeable material. 
     
     
         21 . The mattress of  claim 20 , wherein the second fabric layer comprises:
 a lower layer formed of polyester;   an intermediate layer stacked on the lower layer and made of polyurethane; and   an upper layer stacked on the intermediate layer and made of a mixed material of polyester and polyurethane.   
     
     
         22 . The mattress of  claim 17 , further comprising a plurality of springs installed in the inner space and supporting the first fabric layer. 
     
     
         23 . The mattress of  claim 17 , further comprising a third fabric layer having a mesh structure installed on the foam layer. 
     
     
         24 . The mattress of  claim 23 , further comprising a topper detachably installed on the third fabric layer,
 wherein the topper comprises:
 a first topper fabric layer having a mesh structure contacting the third fabric layer; 
 a topper foam layer stacked on the first topper fabric layer and made of an air permeable material; and 
 a second topper fabric layer stacked on the topper foam layer, and 
   wherein external air passing through the plurality of ventilation holes is discharged to an outside through the second topper fabric layer.   
     
     
         25 . A bed comprising:
 the mattress of  claim 17 ; and   a blowing device installed in the inlet hole at a lower part of an outside of the mattress, the blowing device being configured to inhale external air and discharge the inhaled external air into the inner space of the mattress,   wherein the blowing device comprises:
 a body having an inlet through which the external air is inhaled, and an outlet through which the external air inhaled into the inlet is discharged; 
 a blower installed in the body and generating a flow of external air from the inlet to the outlet; and 
 a hollow duct extending from the outlet and combined with the inlet hole, 
   wherein the duct comprises:
 a connection portion communicating with the outlet; and 
 a first discharge passage and a second discharge passage branching from the connection portion, 
   wherein the blowing device further comprises a flow path conversion portion installed in the duct and being movable to allow the connection portion to communicate only with one of the first discharge passage and the second discharge passage or all of the first discharge passage and the second discharge passage, and   wherein the external air inhaled by the blowing device is discharged through the plurality of ventilation holes of the mattress.   
     
     
         26 . The bed of  claim 25 , wherein the blowing device further comprises a heater installed in the duct and configured to heat external air toward the mattress, wherein the flow path conversion portion is installed in the duct and is closer to the outlet than the heater. 
     
     
         27 . The bed of  claim 26 , wherein the connection portion comprises a first connection portion that narrows as the connection portion moves away from the outlet and a second connection portion that widens as the second connection portion moves away from the first connection portion, and
 the flow path conversion portion comprises:
 a flow path conversion member extending from a center of the heater toward the outlet; and 
 a driving member that moves the flow path conversion member to allow the connection portion to communicate only with one of the first discharge passage and the second discharge passage or all of the first discharge passage and the second discharge passage, and 
   wherein a length of the flow path conversion member is greater than a length from a center of the heater to a connection point of the first connection portion and the second connection portion.   
     
     
         28 . The bed of  claim 27 , wherein a first position recognition portion is installed in the flow path conversion member, and a second position recognition portion that is activated to generate an electrical signal when a distance between the first position recognition portion and the second position recognition portion is less than a preset distance, is disposed on both outer surfaces, the top or bottom surface of the first connection portion. 
     
     
         29 . The bed of  claim 28 , wherein the heater comprises:
 a first heater provided between the connection portion and the first discharge passage; and   a second heater provided between the connection portion and the second discharge passage and being operable independently of the first heater.   
     
     
         30 . The bed of  claim 29 , wherein the blowing device further comprises:
 an input portion into which blowing temperature and an operation command to selectively blow air to one or more of left and right sides of the mattress are input; and   a controller configured to control operations of the driving member and the heater according to the command input into the input portion,   wherein the controller controls the driving member to generate an electrical signal in the second position recognition portion among a plurality of second position recognition portions determined according to the operation command.   
     
     
         31 . A blowing method using the bed of  claim 27 . 
     
     
         32 . A non-transitory computer readable medium storing a program that, when executed by a computer, causes the computer to execute the blowing method of  claim 31 .