Connection structure between heat exchanger tank and connector

Abstract

Projected portions 34 formed at the external circumferential edge of a tank 2 are made to engage with, at least, groove portions 36 formed at a brazing filler metal supplying member 23 and groove portions 39 formed at a connector 9 to hold the tank 2 , the brazing filler metal supplying member 23 and the connector 9 together in a stable state prior to the brazing process. The structure provides a reliable means for supplying brazing filler metal material to be used to braze a tank not clad with a brazing filler metal layer and a connector formed through machining. In addition, it effectively prevents the member constituting the means for brazing filler metal supply from coming off.

1 - 8 . (canceled)  
   
   
       9 . A connection structure for bonding a heat exchanger tank with a connector, comprising: 
 a heat exchanger tank having openings each formed at one of the two side ends thereof along the direction in which tubes are layered;    a connector having at least either a heat exchanging medium intake portion or a heat exchanging medium outlet portion; and    a brazing filler metal supplying member having formed thereat a connecting hole to communicate between an opening at said heat exchanger tank and said intake/outlet portion at said connector,    wherein said heat exchanger tank is an extrusion-molded tank formed through extrusion molding, which is divided into a plurality of chambers by a partitioning portion along the width of said heat exchanger; and    wherein said heat exchanger tank and said connector are brazed and bonded together with a brazing filler metal material supplied to said heat exchanger tank and said connector from said brazing filler metal supplying member held between one of the openings at said heat exchanger tank and said intake/outlet portion formed at said connector.    
   
   
       10 . A connection structure for bonding a heat exchanger tank with a connector according to  claim 9 , 
 wherein projected portions to be held at said heat exchanger tank and said connector are formed to extend outward at said brazing filler metal supplying member.    
   
   
       11 . A connection structure for bonding a heat exchanger tank with a connector according to  claim 10 , 
 wherein a recessed portion extending along the direction of airflow is formed on a side ranging along the direction of airflow at said external circumferential edge of each opening at the tank, and a recessed portion extending along the direction of airflow is also formed at a side of said connector ranging along the direction of airflow and located toward said brazing filler metal supplying member.    
   
   
       12 . A connection structure for bonding a heat exchanger tank with a connector according to  claim 11 , 
 wherein a second projected portion extending along the longer side of the tank is formed at said partitioning portion, with an insertion hole at which said second projected portion can be inserted formed between said connecting holes at said brazing filler metal supplying member.    
   
   
       13 . A connection structure for bonding a heat exchanger tank with a connector according to  claim 9 , 
 wherein a projected portion extending along the longer side of the tank is formed at an external circumferential edge of the opening at the tank, a groove portion at which the projected portion is to be engaged is formed at a side of said brazing filler metal supplying member, and a groove portion at which the projected portion is to be engaged is also formed at a side of said connector toward said brazing filler metal supplying member.    
   
   
       14 . A connection structure for bonding a heat exchanger tank with a connector according to  claim 9 , further comprising: 
 a first jig that is allowed to come in contact with a surface of said connector located on a side opposite from the side where said brazing filler metal supplying member is present; and    a second jig that is allowed to come into contact with a surface of said heat exchanger tank on a side opposite from the side where said connector is present,    wherein said brazing filler metal supplying member is held by first clamping said brazing filler metal supplying member between one of the openings at said heat exchanger tank and said intake/outlet portion formed at said connector, placing said first jig in contact with said connector, placing said second jig in contact with the surface of said heat exchanger tank on the side opposite from the side where said connection is present and then binding said first jig, said connector, said brazing filler metal supplying member, said heat exchanger tank and said second jig together with a binding member.