Method for producing a heat exchanger

Abstract

A method of producing a heat exchanger is provided that includes a connection between two elements of a heat exchanger, the two elements being connectible to each other in at least one respective contact surface. An adhesive film is applied to at least one of the elements in the region of the respective contact surface, two elements being brought in contact with each other by applying pressure and an adhesive bond being produced between the elements by means of the adhesive film. An associated heat exchanger is also provided.

What is claimed is: 
     
         1 . A method for producing a heat exchanger with a connection between two elements of the heat exchanger, the two elements being connectable to one another on at least one contact surface, the method comprising:
 applying an adhesive film to at least one of the elements in a region of the respective contact surface; and   bringing the two elements into contact with one another via a compressive force, wherein an adhesive bond is formed between the elements by the adhesive film.   
     
     
         2 . The method according to  claim 1 , wherein the adhesive film is dry to a touch, and wherein an adhesive effect of the adhesive film is produced by the application of a compressive force and/or by heating the adhesive film. 
     
     
         3 . The method according to  claim 1 , wherein the adhesive film has a layer thickness between 10 μm and 250 μm. 
     
     
         4 . The method according to  claim 1 , wherein the adhesive film is laminated onto one of the elements and/or inserted into a recess in one of the elements. 
     
     
         5 . The method according to  claim 1 , wherein the adhesive film is applied to one of the elements over an entire area in a region of the contact surface, or wherein the adhesive film is precisely fitted onto the respective contact surface of one of the elements. 
     
     
         6 . The method according to  claim 1 , wherein a compressive force of 0.005 N/mm 2  and 15 M/mm 2  is applied to the elements that are brought into contact with one another for bonding. 
     
     
         7 . The method according to  claim 1 , further comprising:
 coating at least one element with the adhesive film;   heating the elements and the adhesive film arranged in the contact surface;   cooling the elements and the adhesive film; and   checking a tightness of the produced bond between the elements,   wherein the adhesive film is softened by the heating,   wherein the adhesive film is at least partially displaced by at least one of the elements, and   wherein the layer thickness between the elements after heating is lower than before heating.   
     
     
         8 . A heat exchanger comprising at least two elements, the heat exchanger being produced by a method according to  claim 1 , wherein the at least two elements are formed by tubes and/or tube bottoms and/or plate elements and/or cover elements and/or pipe supports and/or fin members. 
     
     
         9 . The heat exchanger according to  claim 8 , wherein the adhesive film is formed from an adhesive that has at least one component or is formed of only one component and is filler-free or filled with fillers. 
     
     
         10 . The heat exchanger according to  claim 8 , wherein the heat exchanger has at least one flow channel through which a fluid is adapted to flow, wherein the flow channel is fluid-tightly sealed from the environment by the adhesive film that is arranged between the individual elements of the heat exchanger. 
     
     
         11 . The heat exchanger according to  claim 8 , wherein the heat exchanger has at least one tube, wherein an adhesive film is applied to the tube on at least one of its outwardly directed end regions, wherein a region subjected to the adhesive film is inserted into a recess of a tube bottom, and wherein the adhesive film at least partially covers the contact surface between the tube and the tube bottom and forms a fluid-tight seal between the tube and the tube bottom. 
     
     
         12 . The heat exchanger according to  claim 8 , wherein the heat exchanger is formed from a plurality of plate elements stacked on one another, the plate elements being in contact with one another at their edge region, and wherein an adhesive film is arranged between the individual plate elements in a contact region and form a fluid-tight seal between the plate elements. 
     
     
         13 . The heat exchanger according to  claim 8 , wherein the heat exchanger has a collecting box, the collecting box being formed from a tube bottom and a cover element inserted into a receiving region of the tube bottom, and wherein an adhesive film is arranged in a receiving area of the tube bottom, which at least partly covers the contact surface between the cover element and the tube bottom and forms a fluid-tight seal between the cover element and the tube bottom. 
     
     
         14 . The heat exchanger according to  claim 8 , wherein the heat exchanger has at least one tube that is adapted to be flowed through by a first fluid and surrounded by a second fluid, wherein on an outwardly directed surface of the tube and/or on an inwardly directed surface of the tube, at least one fin member is arranged that is connected to the tube by the adhesive film. 
     
     
         15 . The heat exchanger according to  claim 8 , wherein the adhesive film is rendered ineffective or destroyed by the action of heat. 
     
     
         16 . The heat exchanger according to  claim 8 , wherein the heat exchanger is manufactured from metallic materials and/or from non-metallic materials. 
     
     
         17 . The heat exchanger according to  claim 8 , wherein the adhesive film is formed from a thermoplastic material.