Plate constituting a heat exchanger and heat exchanger comprising at least one such plate

Abstract

The invention relates to a channel intended for circulating fluid and formed by at least two plates each having a bottom and a section, the bottom extending in a first plane, the section extending in a plane that is parallel and offset with respect to the first plane, the bottom and the section being connected to one another by an intermediate portion, the bottom of at least one of the plates includes a first protuberance. The first protuberance extends from its base to its top wall. The top wall is in contact with the bottom of the opposite plate and partially faces the intermediate portion of the plate.

What is claimed is: 
     
         1 . A channel intended for circulating fluid and formed by at least two plates,
 each including a bottom and a section, the bottom extending in a first plane, the section extending in a plane that is parallel and offset with respect to the first plane, the bottom and the section being connected to one another by an intermediate portion,   the bottom of at least one of the plates including a first protuberance, said first protuberance extending from its base to its top wall, said top wall being in contact with the bottom of the opposite plate and partially facing the intermediate portion of said plate.   
     
     
         2 . The channel as claimed in  claim 1 , wherein at least one of the plates includes at least one second protuberance, which extends from its base to a top wall, said top wall being in contact with the bottom of the opposite plate over the entirety of its surface. 
     
     
         3 . The channel as claimed in  claim 1 , wherein each of the plates includes at least one raised edge, said at least one raised edge surrounding the bottom. 
     
     
         4 . The channel as claimed in  claim 3 , wherein the bottom and the at least one raised edge of each of the plates delimit the channel for circulating fluid. 
     
     
         5 . A heat exchanger comprising a channel intended for circulating fluid and formed by at least two plates, each including a bottom and a section, the bottom extending in a first plane, the section extending in a plane that is parallel and offset with respect to the first plane, the bottom and the section being connected to one another by an intermediate portion, the bottom of at least one of the plates including a first protuberance, said first protuberance extending from its base to its top wall, said top wall being in contact with the bottom of the opposite plate and partially facing the intermediate portion of said plate. 
     
     
         6 . The heat exchanger as claimed in  claim 5 , wherein the stack of plates forms an alternating arrangement of first channels and of second channels, which are intended to circulate a refrigerant and a heat-transfer liquid, respectively. 
     
     
         7 . The heat exchanger as claimed in  claim 5 , wherein the section of each of the plates is in contact with the bottom of the opposite plate. 
     
     
         8 . The heat exchanger as claimed in  claim 7 , wherein each of the plates includes at least four openings. 
     
     
         9 . The heat exchanger as claimed in  claim 8 , wherein each of the sections of each of the plates includes one opening. 
     
     
         10 . An installation intended for thermal treatment of an element of a vehicle, comprising at least one heat exchanger having a channel intended for circulating fluid and formed by at least two plates, each including a bottom and a section, the bottom extending in a first plane, the section extending in a plane that is parallel and offset with respect to the first plane, the bottom and the section being connected to one another by an intermediate portion, the bottom of at least one of the plates including a first protuberance, said first protuberance extending from its base to its top wall, said top wall being in contact with the bottom of the opposite plate and partially facing the intermediate portion of said plate.