Cooling device for a rechargeable battery
A device for cooling or temperature control for at least one storage module of a rechargeable battery includes multiple coolant channels, through which a coolant flows in the same direction, and at least one of the coolant channels includes a cross-sectional constriction element with a passage cross-section for the coolant.
1 . A device ( 2 ) for cooling or temperature control for at least one storage module ( 3 ) of a rechargeable battery ( 1 ),
wherein the device ( 2 ) comprises multiple coolant channels ( 6 ), which are flown through by a coolant in the same flow direction, and
wherein at least one of the coolant channels ( 6 ) comprises a cross-sectional constriction element ( 18 ) with a passage orifice ( 19 ) having a passage cross-section for the coolant for increasing pressure loss and for equalizing volume flows through the coolant channels with the same flow direction.
2 . The device ( 2 ) according to claim 1 , wherein the cross-sectional constriction element ( 18 ) is an element which is inserted into the coolant channel ( 6 ).
3 . The device ( 2 ) according to claim 1 , wherein the cross-sectional constriction element ( 18 ) is formed by a deformation of the coolant channel ( 6 ).
4 . The device ( 2 ) according to claim 3 , comprising both a cross-sectional constriction element ( 18 ) inserted into a coolant channel ( 6 ) and a cross-sectional constriction element ( 18 ) formed by deformation of the coolant channel ( 6 ).
5 . The device ( 2 ) according to claim 1 , comprising a first single-layer or multi-layer film ( 4 ) which forms a part of the coolant channels ( 6 ).
6 . The device ( 2 ) according to claim 5 , comprising a further single-layer or multi-layer film ( 5 ) which forms the coolant channels ( 6 ) together with the first single-layer or multi-layer film ( 4 ).
7 . The device ( 2 ) according to claim 1 , wherein the cross-sectional constriction element ( 18 ) is configured so as to be bezel-shaped.
8 . The device ( 2 ) according to claim 1 , wherein the cross-sectional constriction element ( 18 ) is formed with a continuously decreasing passage cross-section for the coolant.
9 . The device ( 2 ) according to claim 8 , wherein the cross-sectional constriction element ( 18 ) is formed with a continuously increasing passage cross-section for the coolant behind the minimum passage cross-section for the coolant.
10 . The device ( 2 ) according to claim 1 , wherein the cross-sectional constriction element ( 18 ) has a length ( 21 ) in the flow direction, wherein a ratio of the length ( 21 ) to the smallest dimension of the passage cross-section is between 2 and 10.
11 . The device ( 2 ) according to claim 1 , wherein the cross-sectional constriction element ( 18 ) is made up at least partially of at least one plastic material.
12 . A rechargeable battery ( 1 ) having at least one storage module ( 3 ) for electrical energy and at least one device ( 2 ) for cooling or temperature control for the at least one storage module ( 3 ), wherein the device ( 2 ) is configured according to claim 1 .
13 . A vehicle ( 22 ) having at least one rechargeable battery ( 1 ), wherein the rechargeable battery ( 1 ) is configured according to claim 12 .
14 . A method for producing a device ( 2 ) for cooling or temperature control for at least one storage module ( 3 ) of a rechargeable battery ( 1 ), wherein multiple coolant channels ( 6 ) are formed in the device ( 2 ), which are flown through by a coolant in the same flow direction, wherein a cross-sectional constriction element ( 18 ) with a passage orifice having a minimum passage cross-section for the coolant is arranged in at least one of the coolant channels ( 6 ) for increasing pressure loss and for equalizing volume flows through the coolant channels with the same flow direction.
15 . The method according to claim 14 , wherein the cross-sectional constriction element ( 18 ) is arranged in the coolant channels ( 6 ) while the coolant channels ( 6 ) are formed.