Attachment structure of blower

Abstract

A blower is attached to a heat exchanger through an attachment member. One of the heat exchanger and the attachment member has at least one engagement portion which is detachably engaged by an elastic deformation with a hole portion provided in other one of the heat exchanger and the attachment member. At least one of the heat exchanger and the attachment member is deformed before the engagement portion is engaged with the hole portion, and is deflected and reformed when the engagement portion engages with the hole portion. Accordingly, a counteractive force due to a deflection is applied to the attachment member, to be pressed to the heat exchanger. Therefore, a relative movement between the attachment member and the heat exchanger can be restricted, even if a gap is formed therebetween when the attachment member is attached to the heat exchanger.

1 . An attachment structure comprising: 
 a heat exchanger for heat-exchanging between air and a fluid therein;    a blower for blowing air to the heat exchanger; and    an attachment member through which the blower is attached to the heat exchanger, wherein:    one of the heat exchanger and the attachment member has at least one engagement portion, the engagement portion being detachably engaged by an elastic deformation with a hole portion which is provided in other one of the heat exchanger and the attachment member; and    at least one of the heat exchanger and the attachment member is deformed before the engagement portion is engaged with the hole portion, and is deflected and reformed due to deformation when the engagement portion engages with the hole portion.    
   
   
       2 . An attachment structure comprising: 
 a heat exchanger for heat-exchanging between air and a fluid therein;    a blower for blowing air to the heat exchanger; and    an attachment member through which the blower is attached to the heat exchanger, wherein:    one of the heat exchanger and the attachment member has at least one engagement portion, the engagement portion being detachably engaged by an elastic deformation with a hole portion which is provided in other one of the heat exchanger and the attachment member;    the heat exchanger has a fitting surface that is arranged opposite to a fitting surface of the attachment member when the engagement portion engages with the hole portion; and    one of the fitting surfaces of the heat exchanger and the attachment member is bent to be tilted with respect to other one of the fitting surfaces before the engagement portion is engaged with the hole portion.    
   
   
       3 . The attachment structure according to  claim 2 , wherein 
 when the engagement portion engages with the hole portion, at least one of the heat exchanger and the attachment member is deflected and reformed so that the fitting surfaces of the heat exchanger and the attachment member becomes approximately parallel to each other.    
   
   
       4 . The attachment structure according to  claim 2 , wherein: 
 at least three the engagement portions are arranged in a line in an arrangement direction perpendicular to an air flowing direction of the heat exchanger; and    the one of the fitting surfaces of the heat exchanger and the attachment member is bent to have a convex shape at an approximate middle area in the arrangement direction before the engagement portion is engaged with the hole portion.    
   
   
       5 . The attachment structure according to  claim 4 , wherein the one of the fitting surfaces of the heat exchanger and the attachment member is bent to have a wave shape before the engagement portion is engaged with the hole portion.  
   
   
       6 . The attachment structure according to  claim 2 , wherein the one of the fitting surfaces of the heat exchanger and the attachment member is on the attachment member.  
   
   
       7 . The attachment structure according to  claim 6 , wherein the attachment member is made of resin.  
   
   
       8 . The attachment structure according to  claim 1 , wherein: 
 the engagement portion is provided in the heat exchanger; and    the hole portion is provided in the attachment member.