Air conditioner

Abstract

An air conditioner includes heat exchangers, an actuator configured to generate pulse-type air current by vibration of a diaphragm, a manifold connected to the actuator and having a plurality of blast ports to configured to blast multiple pulse-type air currents over a large area, and a Coand{hacek over (a)} surface configured to transfer the multiple pulse-type air currents blasted through the plurality of blast ports in a long distance. Therefore, the air conditioner can be useful in reducing generation of noise and being miniaturized.

What is claimed is: 
     
         1 . An air conditioner comprising:
 a main body having an inlet port and an outlet port;   heat exchangers;   a pulse-type air current generation unit configured to generate a pulse-type air current; and   a manifold connected to the pulse-type air current generation unit to blast multiple pulse-type air currents over a predetermined area due to a change in pressure caused by the pulse-type air current generated at the pulse-type air current generation unit.   
     
     
         2 . The air conditioner of  claim 1 , wherein the pulse-type air current generation unit comprises:
 a diaphragm that vibrates;   a cavity whose volume is altered according to the vibration of the diaphragm; and   an actuator having an orifice formed at one side of the cavity.   
     
     
         3 . The air conditioner of  claim 2 , wherein the manifold comprises an inner path which is connected to the orifice and in which a vibration pressure is generated according to a change in the volume of the cavity. 
     
     
         4 . The air conditioner of  claim 3 , wherein the manifold comprises a plurality of blast ports configured to blast the multiple pulse-type air currents caused by the vibration pressure in the inner path. 
     
     
         5 . The air conditioner of  claim 4 , wherein the plurality of blast ports are arranged spaced apart from each other at predetermined intervals in a longitudinal direction of the inner path. 
     
     
         6 . The air conditioner of  claim 4 , further comprising a Coand{hacek over (a)} surface member configured to guide the air currents blasted through the plurality of blast ports. 
     
     
         7 . The air conditioner of  claim 6 , wherein the Coand{hacek over (a)} surface member comprises a curved surface having an airfoil shape. 
     
     
         8 . The air conditioner of  claim 6 , wherein the manifold comprises the Coand{hacek over (a)} surface member. 
     
     
         9 . The air conditioner of  claim 8 , wherein the manifold has a loop shape. 
     
     
         10 . The air conditioner of  claim 9 , wherein the manifold comprises a first blast unit and a second blast unit, and
 each of the first blast unit and the second blast unit comprises the plurality of blast ports and the Coand{hacek over (a)} surface member.   
     
     
         11 . The air conditioner of  claim 10 , wherein the plurality of blast ports and the Coand{hacek over (a)} surface member of the first blast unit are provided at an inner surface of the first blast unit, and
 the plurality of blast ports and the Coand{hacek over (a)} surface member of the second blast unit are provided at an inner surface of the second blast unit.   
     
     
         12 . The air conditioner of  claim 11 , wherein the heat exchangers are disposed between the first blast unit and the second blast unit. 
     
     
         13 . The air conditioner of  claim 10 , wherein the plurality of blast ports and the Coand{hacek over (a)} surface member of the first blast unit are provided at an outer surface of the first blast unit, and
 the plurality of blast ports and the Coand{hacek over (a)} surface member of the second blast unit are provided at an outer surface of the second blast unit.   
     
     
         14 . The air conditioner of  claim 13 , wherein the heat exchangers are disposed outside the first blast unit and the second blast unit. 
     
     
         15 . The air conditioner of  claim 1 , wherein the air conditioner is a wall-mounted air conditioner in which the inlet port is provided at an upper portion of the main body, and the outlet port is provided at a lower portion of the main body. 
     
     
         16 . The air conditioner of  claim 1 , wherein the air conditioner is a ceiling-type air conditioner in which the inlet port and the outlet port are provided at the lower portion of the main body. 
     
     
         17 . The air conditioner of  claim 2 , wherein the actuator comprises a first actuator and a second actuator, both of which are connected to the manifold. 
     
     
         18 . The air conditioner of  claim 17 , wherein the first actuator and the second actuator comprise a first diaphragm and a second diaphragm, respectively, both of which vibrate out of phase with each other. 
     
     
         19 . The air conditioner of  claim 18 , wherein the first diaphragm and the second diaphragm vibrate with a phase difference of 90° or 270°. 
     
     
         20 . The air conditioner of  claim 17 , further comprising a control unit configured to control the first actuator and the second actuator independently. 
     
     
         21 . An air conditioner comprising:
 a main body having an inlet port and an outlet port;   heat exchangers;   a large-area multiple pulse-type air current generation unit comprising an actuator configured to generate a pulse-type air current and a manifold connected to the actuator and having a plurality of blast ports; and   a long-distance air current transfer unit configured to guide multiple pulse-type air currents generated at the large-area multiple pulse-type air current generation unit to a long distance,   wherein the air outside the main body is aspirated through the inlet port by the air currents formed through the large-area pulse-type air current generation unit and the long-distance air current transfer unit, heat-exchanged through the heat exchanger, and discharged through the outlet port.   
     
     
         22 . The air conditioner of  claim 21 , wherein the actuator comprises a diaphragm that vibrates. 
     
     
         23 . The air conditioner of  claim 21 , wherein the long-distance air current transfer unit comprises a Coand{hacek over (a)} surface member. 
     
     
         24 . An air conditioner comprising:
 a main body having an inlet port and an outlet port;   heat exchangers;   an actuator comprising a diaphragm that vibrates, a cavity whose volume is altered according to the vibration of the diaphragm, and an actuator having an orifice formed at one side of the cavity; and   a manifold comprising an inner path which is connected to the orifice and in which a vibration pressure is generated according to a change in the volume of the cavity, a plurality of blast ports configured to blast the multiple pulse-type air currents by a vibration pressure of the inner path, and a Coand{hacek over (a)} surface member provided adjacent to the plurality of blast ports to guide the multiple pulse-type air currents blasted through the plurality of blast ports.   
     
     
         25 . An air conditioner comprising:
 a main body;   a heat exchanger installed at the main body;   first and second actuators configured to generate air currents in order to carry out heat exchange at the heat exchanger; and   a manifold connected to the first actuator and the second actuator.   
     
     
         26 . An air conditioner comprising:
 a main body;   a heat exchanger installed in the main body; and   at least one air current generator to generate an air current across the heat exchanger,   wherein the air current generator is a vibrating diaphragm, and a fan is omitted from the air conditioner.