Heat exchanger, housing, and air-conditioning circuit comprising such an exchanger

Patent metadata

Field	Value
Publication number	US-9958218-B2
Application number	US-201214128647-A
Country	US
Kind code	B2
Filing date	Jun 28, 2012
Priority date	Jun 28, 2011
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A heat exchanger ( 1 ) for a motor vehicle includes a plurality of tubes ( 2 ) arranged in a first and a second row ( 3 A, 3 B); a first and a second header tank ( 4, 5 ) inside which tanks ( 4, 5 ) the tubes ( 2 ) of each of the rows ( 3 A, 3 B) emerge; and a longitudinal dividing partition ( 16 ) arranged in the first header tank ( 4 ) to divide the first header tank ( 4 ) longitudinally into refrigerant inlet and outlet compartments ( 17, 18 ) into which the tubes ( 2 ) of the first row ( 3 A) and of the second row ( 3 B) emerge. The longitudinal dividing partition ( 16 ) includes a plurality of transverse dividing partitions ( 27 ) arranged in the second header tank ( 5 ) to divide the second header tank ( 5 ) transversely into a plurality of return compartments ( 28 ) into which at least one tube ( 2 ) of each of the rows ( 3 A, 3 B) emerges.

First claim

The invention claimed is:

1. A heat exchanger ( 1 ) comprising:
a plurality of tubes ( 2 ), arranged in a first and a second row ( 3 A, 3 B), and through which a refrigerant is intended to circulate;
a first and a second header tank ( 4 , 5 ) inside which tanks ( 4 , 5 ) the tubes ( 2 ) of each of the rows ( 3 A, 3 B) emerge;
a longitudinal dividing partition ( 16 ) arranged in the first header tank ( 4 ) to divide the first header tank ( 4 ) longitudinally into:
a refrigerant inlet compartment ( 17 ) into which the tubes ( 2 ) of the first row ( 3 A) emerge; and
a refrigerant outlet compartment ( 18 ) into which the tubes ( 2 ) of the second row ( 3 B) emerge;

wherein the first header tank ( 4 ) comprises a bottom plate ( 6 ) having a rectangular shape and comprising a plurality of orifices ( 10 ) that accept the corresponding tubes ( 2 );
wherein the bottom plate ( 6 ) of the first header tank ( 4 ) comprises two semicircular deformations ( 20 ) arranged respectively facing the longitudinal ends of the inlet and outlet compartments ( 17 , 18 ) and having a bottom ( 20 A);
wherein the bottom ( 20 A) of the semicircular deformations ( 20 ) is connected to a face ( 6 A) of the bottom plate ( 6 ) that faces towards a cover ( 8 ) by an intermediate connecting zone ( 20 B) which, in axial section, has a predetermined curvature comprising a point of inflection (O);
wherein one of the semicircular deformations ( 20 ) corresponds to a first flow path for an inlet duct ( 21 ) and another of the semicircular deformations ( 20 ) corresponds to a second flow path different from the first flow path for an outlet duct ( 22 ); and
wherein the second header tank ( 5 ) comprises a plurality of transverse dividing partitions ( 27 ) arranged in the second header tank ( 5 ) to divide the second header tank ( 5 ) transversely into a plurality of return compartments ( 28 ) into which at least one tube ( 2 ) of the first row ( 3 A) and one tube ( 2 ) of the second row ( 3 B) emerge.

2. The heat exchanger ( 1 ) according to claim 1 , in which the return compartments ( 28 ) have identical dimensions to one another.

3. The heat exchanger ( 1 ) according to claim 1 , in which:
the second header tank ( 5 ) comprises a bottom plate ( 7 ) having a rectangular shape and comprising a plurality of orifices ( 10 ) that accept the corresponding tubes ( 2 ),
wherein the second header tank comprises a cover ( 9 ) attached to the bottom plate ( 7 ); and
wherein the cover ( 8 ) of the first header tank ( 4 ) takes the form of a pressed metal plate ( 15 ) defining the inlet compartment ( 17 ) and the outlet compartment ( 18 ).

4. The heat exchanger ( 1 ) according to claim 3 , in which a portion of the metal plate ( 15 ) is in sealed contact with the corresponding bottom plate ( 6 ) to form the longitudinal dividing partition ( 16 ).

5. The heat exchanger ( 1 ) according to claim 3 , in which the contour of each of the orifices ( 10 ) in the bottom plates ( 6 , 7 ) is surmounted by an external collar ( 11 ) for securing the corresponding tube ( 2 ).

6. The heat exchanger ( 1 ) according to claim 3 , in which the cover ( 9 ) of the second header tank ( 5 ) takes the form of a pressed metal plate ( 26 ) defining the return compartments ( 28 ).

7. The heat exchanger ( 1 ) according to claim 6 , in which portions of the metal plate ( 26 ) are in sealed contact with the corresponding bottom plate ( 7 ) to form the transverse dividing partitions ( 27 ).

8. The heat exchanger ( 1 ) according to claim 1 further comprising a refrigerant inlet nozzle ( 23 ) and a refrigerant outlet nozzle ( 24 ) which are respectively in fluidic communication with the inlet compartment ( 17 ) and the outlet compartment ( 18 ), the inlet 23 and outlet 24 nozzles each comprising a lateral skirt ( 23 A, 24 A) attached to an exterior face of the first header tank ( 4 ).

9. The heat exchanger ( 1 ) according to claim 1 further comprising corrugated separators ( 29 ) arranged in such a way that each separator ( 29 ) is intercalated between two adjacent tubes ( 2 ) of the first row ( 3 A) and extends between the two adjacent tubes ( 2 ) belonging to the second row ( 3 B).

10. The heat exchanger ( 1 ) according to claim 1 , in which the tubes ( 2 ) of the first and second rows ( 3 A, 3 B) extend in the vertical direction.

11. The housing of a heating, ventilation and/or air conditioning installation for a motor vehicle interior, the housing comprising a heat exchanger ( 1 ) as specified in claim 1 .

12. An air conditioning circuit through which there circulates a refrigerant, the circuit comprising at least a compressor, an external heat exchanger, an evaporator, and the heat exchanger ( 1 ) as specified in claim 1 .

13. The heat exchanger ( 1 ) according to claim 2 , in which:
the second header tank comprises ( 5 ) a bottom plate ( 7 ) comprising a plurality of orifices ( 10 ) that accept the corresponding tubes ( 2 ),
wherein each of the first and second header tanks comprise a cover ( 8 , 9 ) attached to the bottom plate ( 6 , 7 ); and
the cover ( 8 ) of the first header tank ( 4 ) takes the form of a pressed metal plate ( 15 ) defining the inlet compartment ( 17 ) and the outlet compartment ( 18 ).

14. The heat exchanger ( 1 ) according to claim 13 , in which a portion of the metal plate ( 15 ) is in sealed contact with the corresponding bottom plate ( 6 ) to form the longitudinal dividing partition ( 16 ).

15. The heat exchanger ( 1 ) according to claim 1 wherein the face ( 6 A) of the bottom plate ( 6 ) is flat, and wherein the cover ( 8 ) is mounted against the face ( 6 A).

16. A heat exchanger ( 1 ) comprising:
a plurality of tubes ( 2 ), arranged in a first and a second row ( 3 A, 3 B), and through which a refrigerant is intended to circulate;
a first and a second header tank ( 4 , 5 ) inside which tanks ( 4 , 5 ) the tubes ( 2 ) of each of the rows ( 3 A, 3 B) emerge;
a longitudinal dividing partition ( 16 ) arranged in the first header tank ( 4 ) to divide the first header tank ( 4 ) longitudinally into:
a refrigerant inlet compartment ( 17 ) into which the tubes ( 2 ) of the first row ( 3 A) emerge; and
a refrigerant outlet compartment ( 18 ) into which the tubes ( 2 ) of the second row ( 3 B) emerge;

wherein the first header tank ( 4 ) comprises a bottom plate ( 6 ) having a rectangular shape and comprising a plurality of orifices ( 10 ) that accept the corresponding tubes ( 2 );
wherein the bottom plate ( 6 ) of the first header tank ( 4 ) comprises two semicircular deformations ( 20 ) arranged respectively facing the longitudinal ends of the inlet and outlet compartments ( 17 , 18 ) and having a bottom ( 20 A);
wherein the bottom ( 20 A) of the semicircular deformations ( 20 ) is connected to a face ( 6 A) of the bottom plate ( 6 ) that is flat and faces towards a cover ( 8 ) by an intermediate connecting zone ( 20 B) which, in axial section, has a predetermined curvature comprising a point of inflection (O);
wherein one of the semicircular deformations ( 20 ) corresponds to a first flow path for an inlet duct ( 21 ) and another of the semicircular deformations ( 20 ) corresponds to a second flow path different from the first flow path for an outlet duct ( 22 ); and
wherein the second header tank ( 5 ) comprises a plurality of transverse dividing partitions ( 27 ) arranged in the second header tank ( 5 ) to divide the second header tank ( 5 ) transversely into a plurality of return compartments ( 28 ) into which at least one tube ( 2 ) of the first row ( 3 A) and one tube ( 2 ) of the second row ( 3 B) emerg

Assignees

• Bellenfant Aurelie
• Pourmarin Alain
• Bedon Fabienne
• Goyet Eric
• Prevost Jean Christophe
• Vincent Virginie
• Valeo Systemes Thermiques

Inventors

• Bellenfant Aurelie
• Pourmarin Alain
• Bedon Fabienne
• Goyet Eric
• Prevost Jean-Christophe
• Vincent Virginie

Classifications

• F28F9/0256

  Arrangements for coupling connectors with flow lines · CPC title

• F28F9/0209

  having only transversal partitions · CPC title

• F28D1/05391

  with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators · CPC title

• F28F9/0214 Primary

  having only longitudinal partitions · CPC title

• F28D2021/0084

  Condensers · CPC title