Piezoelectric type cooling device

Abstract

There is provided a piezoelectric type cooling device including: a housing having an internal space formed by combining an upper housing and a lower housing and having openings allowing the internal space to be in communication with the atmosphere to allow air to be introduced thereinto and discharged therefrom; a diaphragm provided to traverse the internal space of the housing to divide the internal space into upper and lower blower chambers; and a piezoelectric actuator provided on at least one surface of the diaphragm to provide vertical driving force to the diaphragm.

1 . A piezoelectric type cooling device comprising:
 a housing having an internal space formed by combining an upper housing and a lower housing and having openings allowing the internal space to be in communication with the atmosphere to allow air to be introduced thereinto and discharged therefrom;   a diaphragm provided to traverse the internal space of the housing to divide the internal space into upper and lower blower chambers; and   a piezoelectric actuator provided on at least one surface of the diaphragm to provide vertical driving force to the diaphragm.   
     
     
         2 . The piezoelectric type cooling device of  claim 1 , wherein the upper and lower housings are symmetrical with regard to one another. 
     
     
         3 . The piezoelectric type cooling device of  claim 1 , wherein the openings are provided in the upper and lower housings, respectively. 
     
     
         4 . The piezoelectric type cooling device of  claim 1 , wherein the openings provided in the upper housing are provided in a side or a main surface thereof. 
     
     
         5 . The piezoelectric type cooling device of  claim 1 , wherein the openings provided in the lower housing are provided in a side or a main surface thereof. 
     
     
         6 . The piezoelectric type cooling device of  claim 1 , wherein each of the upper and lower housing includes an air channel groove formed in an inner peripheral surface thereof. 
     
     
         7 . The piezoelectric type cooling device of  claim 6 , wherein the air channel groove is in communication with the opening at at least one point. 
     
     
         8 . The piezoelectric type cooling device of  claim 1 , wherein inner peripheral surfaces of the upper and lower housings have a dome shape corresponding to a shape in which the diaphragm moves vertically. 
     
     
         9 . The piezoelectric type cooling device of  claim 1 , wherein the diaphragm is fitted between an upper edge and a lower edge at which the upper and lower housings are combined with each other. 
     
     
         10 . The piezoelectric type cooling device of  claim 1 , wherein the housing has a cylindrical shape. 
     
     
         11 . The piezoelectric type cooling device of  claim 1 , wherein the housing has a rectangular pillar shape. 
     
     
         12 . The piezoelectric type cooling device of  claim 1 , wherein a plurality of the piezoelectric actuators are provided in a manner in which they are overlapped on at least one surface of the diaphragm. 
     
     
         13 . A piezoelectric type cooling device comprising:
 a housing having an internal space formed by combining an upper housing and a lower housing and having openings allowing the internal space to be in communication with the atmosphere to allow air to be introduced thereinto and discharged therefrom;   a plurality of diaphragms each provided to traverse the internal space of the housing to divide the internal space into a plurality of blower chambers having a vertically multilayered shape; and   a plurality of piezoelectric actuators each provided on at least one surface of the plurality of diaphragms to provide vertical driving force to the plurality of diaphragms.   
     
     
         14 . The piezoelectric type cooling device of  claim 13 , wherein the openings are provided so that each of the blower chambers is in communication with the atmosphere. 
     
     
         15 . The piezoelectric type cooling device of  claim 13 , wherein the openings provided in a blower chamber adjacent to a main surface of the upper or lower housing among the blower chambers are provided in a side or the main surface of the upper or lower housing. 
     
     
         16 . The piezoelectric type cooling device of  claim 13 , wherein the openings provided in a blower chamber formed by the side of the upper or lower housing and the diaphragm, among the blower chambers, are provided in the side of the upper or lower housing. 
     
     
         17 . The piezoelectric type cooling device of  claim 13 , wherein the blower chamber formed by the side of the upper or lower housing and the diaphragm, among the blower chambers, further includes a partition wall provided to traverse the internal space thereof. 
     
     
         18 . The piezoelectric type cooling device of  claim 17 , wherein the partition wall is provided to have a through-hole formed therein, such that the air is vertically introduced or discharged. 
     
     
         19 . A piezoelectric type cooling device comprising:
 a housing having an internal space formed by combining an upper housing and a lower housing and having openings allowing the internal space to be in communication with the atmosphere to allow air to be introduced thereinto and discharged therefrom;   a lattice dividing partition wall dividing the internal space of the housing in a lattice form to form a plurality of individual spaces;   diaphragms each provided to traverse the individual spaces of the housing to divide each of the individual spaces into a plurality of blower chambers; and   a plurality of piezoelectric actuators each provided on at least one surface of the diaphragms each provided in the plurality of individual spaces to provide vertical driving force to the diaphragms provided in each of the individual spaces.   
     
     
         20 . The piezoelectric type cooling device of  claim 19 , wherein the diaphragms are connected as one. 
     
     
         21 . The piezoelectric type cooling device of  claim 19 , wherein a plurality of the diaphragms are provided to traverse the individual spaces of the housing to divide each of the individual spaces into the plurality of blower chambers having a vertically multilayered shape. 
     
     
         22 . A piezoelectric type cooling device formed by vertically multi-layering a plurality of piezoelectric type cooling devices, the piezoelectric type cooling device comprising:
 a housing having an internal space formed by combining an upper housing and a lower housing and having openings allowing the internal space to be in communication with the atmosphere to allow air to be introduced thereinto and discharged therefrom;   a diaphragm provided to traverse the internal space of the housing to divide the internal space into upper and lower blower chambers; and   a piezoelectric actuator provided on at least one surface of the diaphragm to provide vertical driving force to the diaphragm.   
     
     
         23 . A piezoelectric type cooling device formed by vertically multi-layering a plurality of piezoelectric type cooling devices, the piezoelectric type cooling device comprising:
 a housing having an internal space formed by combining an upper housing and a lower housing and having openings allowing the internal space to be in communication with the atmosphere to allow air to be introduced thereinto and discharged therefrom;   a plurality of diaphragms each provided to traverse the internal space of the housing to divide the internal space into a plurality of blower chambers; and   a plurality of piezoelectric actuators each provided on at least one surface of the plurality of diaphragms to provide vertical driving force to the plurality of diaphragms.   
     
     
         24 . The piezoelectric type cooling device of  claim 22 , wherein the upper housing includes a coupling protrusion protruded upwardly from a main surface thereof, and
 the lower housing includes a coupling groove into which a coupling protrusion provided on an upper housing of one piezoelectric type cooling device adjacent to a lower portion of another piezoelectric type cooling device is insertedly fixed, the coupling groove being provided in a main surface thereof so as to correspond to the coupling protrusion.   
     
     
         25 . The piezoelectric type cooling device of  claim 23 , wherein the upper housing includes a coupling protrusion protruded upwardly from a main surface thereof, and
 the lower housing includes a coupling groove into which a coupling protrusion provided on an upper housing of one piezoelectric type cooling device adjacent to a lower portion of another piezoelectric type cooling device is insertedly fixed, the coupling groove being provided in a main surface thereof so as to correspond to the coupling protrusion.   
     
     
         26 . A piezoelectric type cooling device formed by adjacently coupling a plurality of piezoelectric type cooling devices to each other on the same plane, the piezoelectric type cooling device comprising:
 a housing having an internal space formed by combining an upper housing and a lower housing and having openings allowing the internal space to be in communication with the atmosphere to allow air to be introduced thereinto and discharged therefrom;   a diaphragm provided to traverse the internal space of the housing to divide the internal space into upper and lower blower chambers; and   a piezoelectric actuator provided on at least one surface of the diaphragm to provide vertical driving force to the diaphragm.   
     
     
         27 . A piezoelectric type cooling device formed by adjacently coupling a plurality of piezoelectric type cooling devices to each other on the same plane, the piezoelectric type cooling device comprising:
 a housing having an internal space formed by combining an upper housing and a lower housing and having openings allowing the internal space to be in communication with the atmosphere to allow air to be introduced thereinto and discharged therefrom;   a plurality of diaphragms each provided to traverse the internal space of the housing to divide the internal space into a plurality of blower chambers; and   a plurality of piezoelectric actuators each provided on at least one surface of the plurality of diaphragms to provide vertical driving force to the plurality of diaphragms.   
     
     
         28 . The piezoelectric type cooling device of  claim 26 , wherein the housing includes a coupling protrusion protruded laterally from one side thereof, and
 the lower housing includes a coupling groove into which a coupling protrusion provided on one side of a housing of one piezoelectric type cooling device adjacent to the other side of another piezoelectric type cooling device is insertedly fixed, the coupling groove being provided in the other side thereof so as to correspond to the coupling protrusion.   
     
     
         29 . The piezoelectric type cooling device of  claim 27 , wherein the housing includes a coupling protrusion protruded laterally from one side thereof, and
 the lower housing includes a coupling groove into which a coupling protrusion provided on one side of a housing of one piezoelectric type cooling device adjacent to the other side of another piezoelectric type cooling device is insertedly fixed, the coupling groove being provided in the other side thereof so as to correspond to the coupling protrusion.