Cooling device for a vehicle battery, and vehicle battery with cooling device
A cooling device for a vehicle battery is provided with a cooling plate ( 22 ) comprising a first plate part ( 24 ) which faces towards the battery ( 10 ) and has a first wall thickness (di), comprising a second plate part ( 30 ) which has a second wall thickness (d 2 ), and comprising a multiplicity of depressions ( 32 ) formed in the second plate part ( 30 ). The cooling plate ( 22 ) has a multiplicity of refrigerant ducts ( 34 ) with a first duct cross section, said refrigerant ducts being formed between the first and second plate parts ( 24, 30 ) in the depressions ( 32 ) of the second plate part ( 30 ). The cooling plate ( 22 ) has a distributor portion ( 42 ) and a collector portion which each have at least one connection ( 46 ) for a refrigerant feed line ( 56 ) and a refrigerant return line. The wall of the distributor portion ( 42 ) and/or of the collector portion ( 44 ) is formed at least in portions by a component ( 52 ) additional to the first and second plate parts ( 24, 30 ).
1. A cooling device for a vehicle battery, the cooling device comprising a cooling plate ( 22 ) comprising:
a first plate part ( 24 ) facing towards the battery ( 10 ) and having a first wall thickness (d 1 );
a second plate part ( 30 ) having a second wall thickness (d 2 ) and a multiplicity of depressions ( 32 ) formed in the second plate part ( 30 );
a multiplicity of refrigerant ducts ( 34 ) with a first duct cross section, said refrigerant ducts being formed between the first plate part ( 24 ) and the second plate part ( 30 ) in the depressions ( 32 ) of the second plate part ( 30 ); and
a distributor portion ( 42 ) and a collector portion ( 44 ) which each have at least one connection ( 46 , 48 ) for a refrigerant feed line ( 56 ) and a refrigerant return line,
wherein a wall of the distributor portion ( 42 ) and/or of the collector portion ( 44 ) is formed at least in portions by an additional component ( 52 ) additional to the first plate part ( 24 ) and the second plate part ( 30 ),
wherein the distributor portion ( 42 ) and/or the collector portion ( 44 ) are arranged together with the second plate part ( 30 ) on one side ( 28 ) of the first plate part ( 24 ),
wherein the connections ( 46 ) and ( 48 ) are situated on the same side of the cooling plate ( 22 ) and adjacent to one another, and
wherein the collector portion ( 44 ) is formed as a common depression corresponding to the distributor portion ( 42 ).
2. The cooling device according to claim 1 , wherein the distributor portion ( 42 ) and/or the collector portion ( 44 ) are formed at least in portions by the second plate part ( 30 ), and the additional component ( 52 ) reinforces the second plate part ( 30 ) in the region of the distributor portion ( 42 ) and/or of the collector portion ( 44 ).
3. The cooling device according to claim 1 , wherein the wall of the distributor portion ( 42 ) and/or of the collector portion ( 44 ) has a greater wall thickness (D) than the second plate part ( 30 ).
4. The cooling device according to claim 1 , wherein the at least one connection ( 46 , 48 ) for coolant feed and/or the return line is formed on the additional component ( 52 ).
5. The cooling device according to claim 1 , wherein the additional component ( 52 ) has a shell-shaped form and the distributor portion ( 42 ) and/or the collector portion ( 44 ) are closed by the first plate part ( 24 ).
6. The cooling device according to claim 1 , wherein the distributor portion ( 42 ) and/or the collector portion ( 44 ) are formed on one side ( 28 ) of the first plate part ( 24 ) situated opposite the second plate part ( 30 ), and wherein passage openings ( 60 , 62 ) in the first plate part ( 24 ) form inlet and outlet openings of the multiplicity of refrigerant ducts ( 34 ).
7. The cooling device according to claim 1 , having a multiplicity of cooling plates ( 22 ), wherein a distributor portion ( 42 ) and/or a collector portion ( 44 ) is provided for each of the multiplicity of cooling plates ( 22 ) and wherein at least two cooling plates ( 22 ) are connected in series or parallel.
8. The cooling device according to claim 1 , wherein a deformable, heat-conducting, electrically insulating layer ( 80 ) is arranged between the surface of the first plate part ( 24 ) and a surface, which is to be cooled, of the vehicle battery.
9. The cooling device according to claim 1 , wherein the first plate part ( 24 ) and the second plate part ( 30 ) are connected by means of a common joining surface.
10. The cooling device according to claim 1 , wherein the first and/or second plate parts ( 24 , 30 ) are metal sheets.
11. A vehicle battery having a multiplicity of battery cells ( 12 ) and having a cooling device according to claim 1 .
12. The cooling device according to claim 2 , wherein the wall of the distributor portion ( 42 ) and/or of the collector portion ( 44 ) has a greater wall thickness (D) than the second plate part ( 30 ).
13. A cooling device for a vehicle battery, the cooling device comprising a cooling plate ( 22 ) comprising:
a first plate part ( 24 ) facing towards the battery ( 10 ) and having a first wall thickness (d 1 );
a second plate part ( 30 ) having a second wall thickness (d 2 ) and a multiplicity of depressions ( 32 ) formed in the second plate part ( 30 );
a multiplicity of refrigerant ducts ( 34 ) with a first duct cross section, said refrigerant ducts being formed between the first plate part ( 24 ) and the second plate part ( 30 ) in the depressions ( 32 ) of the second plate part ( 30 ); and
a distributor portion ( 42 ) and a collector portion ( 44 ) which each have at least one connection ( 46 , 48 ) for a refrigerant feed line ( 56 ) and a refrigerant return line,
wherein a wall of the distributor portion ( 42 ) and/or of the collector portion ( 44 ) is formed at least in portions by an additional component ( 52 ) additional to the first plate part ( 24 ) and the second plate part ( 30 ), and
wherein the wall of the distributor portion ( 42 ) and/or of the collector portion ( 44 ) has a greater wall thickness (D) than the second plate part ( 30 ).
14. A cooling device for a vehicle battery, the cooling device comprising a cooling plate ( 22 ) comprising:
a first plate part ( 24 ) facing towards the battery ( 10 ) and having a first wall thickness (d 1 );
a second plate part ( 30 ) having a second wall thickness (d 2 ) and a multiplicity of depressions ( 32 ) formed in the second plate part ( 30 );
a multiplicity of refrigerant ducts ( 34 ) with a first duct cross section, said refrigerant ducts being formed between the first plate part ( 24 ) and the second plate part ( 30 ) in the depressions ( 32 ) of the second plate part ( 30 ); and
a distributor portion ( 42 ) and a collector portion ( 44 ) which each have at least one connection ( 46 , 48 ) for a refrigerant feed line ( 56 ) and a refrigerant return line,
wherein a wall of the distributor portion ( 42 ) and/or of the collector portion ( 44 ) is formed at least in portions by an additional component ( 52 ) additional to the first plate part ( 24 ) and the second plate part ( 30 ),
wherein the distributor portion ( 42 ) and/or the collector portion ( 44 ) are formed at least in portions by the second plate part ( 30 ), and the additional component ( 52 ) reinforces the second plate part ( 30 ) in the region of the distributor portion ( 42 ) and/or of the collector portion ( 44 ), and
wherein the wall of the distributor portion ( 42 ) and/or of the collector portion ( 44 ) has a greater wall thickness (D) than the second plate part ( 30 ).