Heating and cooling system for vehicle seat

Abstract

A heating and cooling system for a vehicle seat, may include a housing having an air supply port through which air communicates with the vehicle seat and an air exhaust hole through which air communicates with the outside of the housing, a thermoelectric element located in the housing between the air supply port and the air exhaust hole to selectively heat or cool air, which is directed toward the air supply port or the air exhaust hole, and a first blower fan provided in the air supply port to communicate air between the vehicle seat and the thermoelectric element.

1 . A heating and cooling system for a vehicle seat, comprising:
 a housing having an air supply port through which air communicates with the vehicle seat and an air exhaust hole through which air communicates with the outside of the housing;   a thermoelectric element located in the housing between the air supply port and the air exhaust hole to selectively heat or cool air, which is directed toward the air supply port or the air exhaust hole; and   a first blower fan provided in the air supply port to communicate air between the vehicle seat and the thermoelectric element.   
     
     
         2 . The heating and cooling system in accordance with  claim 1 , wherein the air supply port is located in an upper portion of the housing, and the air exhaust hole is located in a lower side portion of the housing. 
     
     
         3 . The heating and cooling system in accordance with  claim 2 , wherein the housing has an inner air hole formed in an upper side portion thereof above the thermoelectric element. 
     
     
         4 . The heating and cooling system in accordance with  claim 3 , further comprising an air filter attached to the inner air hole. 
     
     
         5 . The heating and cooling system in accordance with  claim 3 , wherein the inner air hole allows air, taken in from inside the seat, to pass by one side of the thermoelectric element and be supplied to the air supply port. 
     
     
         6 . The heating and cooling system in accordance with  claim 2 , wherein the housing has an outer air port in a lower portion thereof under the thermoelectric element. 
     
     
         7 . The heating and cooling system in accordance with  claim 6 , wherein the outer air port takes in air outside the seat so that taken-in air passes by one side of the thermoelectric element and is exhausted through the air exhaust hole. 
     
     
         8 . The heating and cooling system in accordance with  claim 6 , further comprising a second blower fan provided in the outer air port to communicate air between the outer air port and the air exhaust hole through the thermoelectric element,
 wherein the first blower fan is spaced apart from one side of the thermoelectric element, and the second blower fan is spaced apart from the other side of the thermoelectric element.   
     
     
         9 . The heating and cooling system in accordance with  claim 8 , wherein the first and second blower fans are driven by a single motor. 
     
     
         10 . The heating and cooling system in accordance with  claim 9 , wherein the first and second blower fans have blades oriented in opposite direction. 
     
     
         11 . The heating and cooling system in accordance with  claim 10 , wherein a rotary shaft of the single motor is coupled to the first blower fan by passing through the thermoelectric element. 
     
     
         12 . The heating and cooling system in accordance with  claim 6 , further comprising an air filter attached to the outer air port. 
     
     
         13 . The heating and cooling system in accordance with  claim 3 , wherein a plurality of the inner air holes are radially formed along the circumference of the housing. 
     
     
         14 . The heating and cooling system in accordance with  claim 1 , wherein a plurality of the air exhaust holes are radially formed along the circumference of the housing. 
     
     
         15 . The heating and cooling system in accordance with  claim 1 , further comprising heat sink fins attached to one or more sides of the thermoelectric element. 
     
     
         16 . The heating and cooling system in accordance with  claim 15 , wherein upper surface of the thermoelectric element in the air supply port includes heat sink fins and lower surface of the thermoelectric element in the outer air port includes heat sink fins. 
     
     
         17 . The heating and cooling system in accordance with  claim 15 , wherein the heat sink fins are radially arrayed in an annular shape along the thermoelectric element. 
     
     
         18 . The heating and cooling system in accordance with  claim 1 , wherein the housing comprises first and second semi-circular housings and assembled each other to form a single housing shaped of a cylinder. 
     
     
         19 . A heating and cooling system for a vehicle seat, comprising:
 a housing having an air supply port through which air is supplied into the seat and an air exhaust hole through which air is exhausted from the seat;   a thermoelectric element located in the housing between the air supply port and the air exhaust hole to selectively heat or cool air, which is directed toward the air supply port or the air exhaust hole;   heat sink fins attached to one side and the other side of the thermoelectric element; and   blower fans provided in the air supply port and the air exhaust hole, respectively, to communicate air with the thermoelectric element.