Refrigeration cycle device

Abstract

A refrigeration cycle device includes: a casing that configures the outer contour of an outdoor machine, has a machine chamber and a blowing chamber formed therewithin, and has formed an introduction hole for introducing outside air into the machine chamber; a partition plate that partitions the interior of the casing so as to demarcate the machine chamber and the blowing chamber; a refrigeration cycle circuit, of which at least a portion is disposed in the machine chamber, and through which a combustible refrigerant circulates; and a blower disposed in the blowing chamber. A blow-through hole connecting from the machine chamber to the blowing chamber is formed in a bottom part of the partition plate. The outside air introduced into the machine chamber from the introduction hole flows through the blow-through hole and into the blowing chamber, and is sent outside the casing from a blow-out opening formed in the blowing chamber.

1 . A refrigeration cycle device comprising:
 a casing that configures an outer contour of an outdoor machine, has a first chamber and a second chamber formed therewithin, and has formed an introduction hole for introducing outside air into the first chamber;   a partition that partitions the interior of the casing so as to demarcate the first chamber and the second chamber, and has formed in a bottom part thereof a blow-through hole connecting from the first chamber to the second chamber;   a refrigeration cycle circuit, of which at least a portion is disposed in the first chamber, and through which a combustible refrigerant circulates; and   a blower disposed in the second chamber that sends out the outside air introduced from the introduction hole through the blow-through hole and outside the casing from a blow-out opening formed in the second chamber.   
     
     
         2 . The refrigeration cycle device according to  claim 1 , wherein
 the introduction hole is formed at a position higher than a position where the blow-through hole is formed.   
     
     
         3 . The refrigeration cycle device according to  claim 1 , comprising:
 a controller that includes a plurality of electronic components used to control the refrigeration cycle circuit and the blower, and an electronic component housing that houses the electronic components;   wherein the electronic component housing is disposed in a top part inside the first chamber, and   the introduction hole is formed at a position lower than the electronic component housing.   
     
     
         4 . The refrigeration cycle device according to  claim 3 , wherein
 a height of a top edge of the introduction hole is the same height as a height of a bottom edge of the electronic component housing.   
     
     
         5 . The refrigeration cycle device according to  claim 3 , wherein
 the controller, before starting operation of the refrigeration cycle circuit, controls a blowing fan of the blower to rotate for a predetermined time.   
     
     
         6 . The refrigeration cycle device according to  claim 3 , wherein
 in the electronic component housing, a first ventilation hole for internally introducing air and a second ventilation hole for exhausting the introduced air are formed.   
     
     
         7 . The refrigeration cycle device according to  claim 1 , wherein
 a tubular bell mouth is attached on an inner side of the blow-out opening, and   the blow-through hole is covered by the bell mouth so as to not be exposed from the blow-out opening.   
     
     
         8 . The refrigeration cycle device according to  claim 1 , wherein
 the introduction hole is formed on the basis of a quenching distance of the refrigerant.   
     
     
         9 . The refrigeration cycle device according to  claim 8 , wherein
 the introduction hole comprises a plurality of holes with a cross-section formed in a rectangular shape, and formed so that a short edge of the rectangular shape is a dimension less than or equal to a quenching distance of the refrigerant.   
     
     
         10 . The refrigeration cycle device according to  claim 8 , wherein
 on the introduction hole, a first screen formed so as to cover an opening is provided to prevent intrusion of rainwater from outside into the first chamber.   
     
     
         11 . The refrigeration cycle device according to  claim 1 , wherein
 the blow-through hole is formed on the basis of a quenching distance of the refrigerant.   
     
     
         12 . The refrigeration cycle device according to  claim 11 , wherein
 the blow-through hole comprises a plurality of holes with a cross-section in a rectangular shape, and formed so that a short edge of the rectangular shape is a dimension less than or equal to a quenching distance of the refrigerant.   
     
     
         13 . The refrigeration cycle device according to  claim 11 , wherein
 on the blow-through hole, a second screen formed so as to cover an opening is provided to prevent intrusion of rainwater from the second chamber into the first chamber.