Connection device and electric machine
First Claim
1. A connection device for connecting at least one electrical hollow conductor as used in a winding of an electric machine for a motor vehicle, to an electrical energy source or an electrical energy storage or an electrical energy user, said connection device comprising a first channel, adapted for introduction of a coolant into the at least one hollow conductor, a second channel via which the coolant can be discharged from the at least one hollow conductor, wherein the first channel and/or the second channel include a collection region having a flow cross section in which a plurality of coolant conduits formed in the connection device are fluidly coupled, said coolant conduits being assigned to the hollow conductors in one to one correspondence, wherein the flow cross section of the collection region increases toward an interface region of the connection device, said interface region being configured for connection of the connection device with an inlet line or with an outlet line for the coolant.
1 Assignment
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Accused Products
Abstract
A connection device for connecting at least one electrical hollow conductor as used in a winding of an electric machine for a motor vehicle to an electrical energy source or an electrical energy storage or user is disclosed, wherein the connection device includes a first channel adapted for introduction of a coolant into the at least one hollow conductor.
6 Citations
12 Claims
- 1. A connection device for connecting at least one electrical hollow conductor as used in a winding of an electric machine for a motor vehicle, to an electrical energy source or an electrical energy storage or an electrical energy user, said connection device comprising a first channel, adapted for introduction of a coolant into the at least one hollow conductor, a second channel via which the coolant can be discharged from the at least one hollow conductor, wherein the first channel and/or the second channel include a collection region having a flow cross section in which a plurality of coolant conduits formed in the connection device are fluidly coupled, said coolant conduits being assigned to the hollow conductors in one to one correspondence, wherein the flow cross section of the collection region increases toward an interface region of the connection device, said interface region being configured for connection of the connection device with an inlet line or with an outlet line for the coolant.
- 11. An electric machine, comprising a connection device, for connecting at least one electrical hollow conductor as used in a winding of an electric machine for a motor vehicle, to an electrical energy source or an electrical energy storage or an electrical energy user, said connection device comprising a first channel adapted for introduction of a coolant into the at least one hollow conductor, a second channel via which the coolant can be discharged from the at least one hollow conductor, wherein the first channel and/or the second channel include a collection region having a flow cross section in which a plurality of coolant conduits formed in the connection device are fluidly coupled, said coolant conduits being assigned to the hollow conductors in one to one correspondence, wherein the flow cross section of the collection region increases toward an interface region of the connection device, said interface region being configured for connection of the connection device with an inlet line or with an outlet line for the coolant.
Specification