Air conditioner for vehicle

Abstract

A vehicular air conditioner including an air conditioner casing with a supply opening and a perforated panel with a plurality of vent holes, the perforated panel extending over the supply opening. The vent holes each extend through the perforated panel and each have an inlet opening exposed to an inside of the air conditioner casing, an outlet opening exposed to an interior of the vehicle compartment, and a nozzle length that extends from the inlet opening to the outlet opening and is within a range from 0.3 mm to 0.8 mm.

1 . An air conditioner for a vehicle, comprising: 
 an air conditioner casing with a supply opening through which an air flow is blown into a vehicle compartment; and    a perforated panel with a plurality of vent holes, the perforated panel extending over the supply opening of the air conditioner casing;    wherein the plurality of vent holes each extend through the perforated panel and each have an inlet opening that is exposed to an inside of the air conditioner casing, an outlet opening that is exposed to an interior of the vehicle compartment and a nozzle length that extends from the inlet opening to the outlet opening, the nozzle length being within a range from 0.3 mm to 0.8 mm.    
   
   
       2 . The air conditioner as claimed in  claim 1 , wherein a ratio of a sum of opening areas of the vent holes to a surface area of the perforated panel is within a range from 55% to 65%.  
   
   
       3 . The air conditioner as claimed in  claim 1 , wherein each of the vent holes has a circular shape.  
   
   
       4 . The air conditioner as claimed in  claim 1 , wherein the vent holes comprise generally rectangular shaped slits, and a ratio between a short side of the generally rectangular shaped slits and a long side thereof is within a range from 1:3 to 1:8.  
   
   
       5 . The air conditioner as claimed in  claim 1 , wherein an angle of a direction of the air flow that is blown onto the perforated panel with respect to a direction of the nozzle length of the vent holes is within a range from 30 degrees to 60 degrees.  
   
   
       6 . The air conditioner as claimed in  claim 1 , wherein an angle of a direction of the air flow that is blown onto the perforated panel with respect to a direction of the nozzle length of the vent holes is within a range from 40 degrees to 50 degrees.  
   
   
       7 . The air conditioner as claimed in  claim 1 , wherein the perforated panel comprises a plurality of nozzle portions formed on an inner surface of the perforated panel which is exposed to the supply opening of the air conditioner casing, and the vent holes extend through the nozzle portions.  
   
   
       8 . The air conditioner as claimed in  claim 1 , wherein the perforated panel is made of metal.  
   
   
       9 . The air conditioner as claimed in  claim 1 , wherein the perforated panel is made of fabric.  
   
   
       10 . The air conditioner as claimed in  claim 1 , wherein the perforated panel is made of synthetic resin.  
   
   
       11 . The air conditioner as claimed in  claim 1 , further comprising a louver that is disposed below the perforated panel and arranged within the air conditioner casing, the louver being operative to define a direction of the air flow that is blown onto the perforated panel.  
   
   
       12 . An air conditioner for a vehicle, comprising: 
 an air conditioner casing with a supply opening through which an air flow is blown into a vehicle compartment;    a panel extending over the supply opening of the air conditioner casing; and    means for diverting a direction of the air flow that is blown out through the panel, the means extending through the panel over a length that ranges from 0.3 mm to 0.8 mm.    
   
   
       13 . The air conditioner as claimed in  claim 12 , wherein the means comprises a plurality of vent holes, and a ratio of a sum of opening areas of the vent holes to a surface area of the panel is within a range from 55% to 65%.  
   
   
       14 . The air conditioner as claimed in  claim 12 , wherein the means comprises a plurality of circular-shaped vent holes.  
   
   
       15 . The air conditioner as claimed in  claim 12 , wherein the means comprises a plurality of vent holes in the form of generally rectangular-shaped slits, and a ratio between a short side of the generally rectangular-shaped slits and a long side thereof is within a range from 1:3 to 1:8.  
   
   
       16 . The air conditioner as claimed in  claim 12 , wherein an angle of a direction of the air flow that is blown onto the panel with respect to a direction of the length of the means is within a range from 30 degrees to 60 degrees.  
   
   
       17 . The air conditioner as claimed in  claim 12 , wherein an angle of a direction of the air flow that is blown onto the panel with respect to a direction of the length of the means is within a range from 40 degrees to 50 degrees.  
   
   
       18 . The air conditioner as claimed in  claim 12 , wherein the means comprises a plurality of vent holes, the panel comprises a plurality of nozzle portions that are formed on an inner surface of the panel which is exposed to the supply opening of the air conditioner casing, and the vent holes extend through the nozzle portions.  
   
   
       19 . The air conditioner as claimed in  claim 12 , wherein the panel is made of metal.  
   
   
       20 . The air conditioner as claimed in  claim 12 , wherein the panel is made of fabric.  
   
   
       21 . The air conditioner as claimed in  claim 12 , wherein the panel is made of synthetic resin.  
   
   
       22 . The air conditioner as claimed in  claim 12 , further comprising a louver that is disposed below the panel and arranged within the air conditioner casing, the louver being operative to define a direction of the air flow that is blown onto the panel.