Heat exchanger for a battery unit
AssigneeMahle International GmbH
InventorsStefan Hirsch, Joachim Treier, Lars Ludwig, Thomas Kuznia
Life of this patent
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Abstract
The invention relates to a heat exchanger for a battery unit, comprising coolant-conducting tubes which end at both sides in in each case one collector, wherein each collector is connected to at least one tube and a potential equalization element for electrical potential equalization connects at least one collector to a housing of the battery. To produce potential equalization between the heat exchanger and a battery housing in as inexpensive a manner as possible, the potential equalization element and the collector are formed in one piece.
Claims15
A heat exchanger for a battery unit, comprising:
- a lithium-ion battery arranged on the heat exchanger,
- wherein the lithium-ion battery comprises battery cells enclosed by a battery housing,
- an electrical insulation arranged between the lithium-ion battery and the heat exchanger,
- coolant-conducting tubes comprising ends that in each case connect to one collector,
- wherein each collector is connected to at least one tube and a potential equalization element, wherein the potential equalization element electrically connects a body of at least one collector to the battery housing and equalizes the voltage potential of the at least one collector and the battery housing,
- wherein the potential equalization element and the collector are formed in one piece.
A heat exchanger for a battery unit, comprising:
- a lithium-ion battery arranged on the heat exchanger,
- wherein the lithium-ion battery comprises battery cells arranged in a space bounded by a battery housing,
- an electrical insulation arranged between the lithium-ion battery and the heat exchanger,
- coolant-conducting tubes comprising ends that in each case connect to one collector,
- wherein each collector is of two-part construction and is composed of a U-shaped base element and of a relatively short U-shaped cover element, wherein each collector is connected to at least one tube and a potential equalization element, wherein the collector comprises passages for receiving the at least one tube, wherein the passages are each delimited by a collar which is formed from an edge of the collector which is turned toward the inner wall of the collector, wherein the potential equalization element electrically connects a body of at least one collector to the battery housing and equalizes the voltage potential of the at least one collector and the battery housing, wherein the potential equalization element and one part of the two-part collector are formed in one piece.
Dependencies are inferred from the claim text.