# US 2014/0151002 A1 · Shielding plate having a coolant line > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0151002 A1 - Document ID: US20140151002A1 - Status: Published application - Kind: A1 - Application number: 14/236,256 - Filed: 2012-07-31 - Published: 2014-06-05 - Earliest claimed: 2011-08-24 - Assignees: Schaeffler Technologies AG & Co. KG - Inventors: Tobias Vogler; Raphael Fischer - Web page: https://patentgrep.com/patent/US20140151002A1 ## CPC - B60K 11/02: with liquid cooling - B60K 7/0007: {the motor being electric} - H02K 7/102: with friction brakes - H02K 9/22: by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges - H02K 9/227: {Heat sinks} - Y10T 29/49359: Cooling apparatus making, e.g., air conditioner, refrigerator - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract An electromotive drive system, especially an electric wheel hub drive, for example, for an electric and/or hybrid vehicle. In order to protect heat-sensitive components of the electric motor against heat input stemming from a friction brake, the drive system includes a shielding device (1) having a coolant line (2, 2a, 2b) for cooling the shielding device (1) with a coolant. A shielding device (1), to an electric and/or hybrid vehicle as well as to a production method. ## Claims ### Claim at position 1 1-15. (canceled) ### Claim 16 A drive system for a vehicle, the drive system comprising: an electric motor with a rotor and a stator; a friction brake; and a shielding device for thermally shielding at least one component of the electric motor against heat input stemming from the friction brake, the shielding device including at least one coolant line for cooling the shielding device with a coolant. ### Claim 17 (depends on 16) The drive system as recited in claim 16 wherein the shielding device has a ring-shaped body, the coolant line being integrated into the ring-shaped body. ### Claim 18 (depends on 16) The drive system as recited in claim 16 wherein the coolant line has a coolant feed line and a coolant drain line. ### Claim 19 (depends on 18) The drive system as recited in claim 18 wherein the coolant feed line and the coolant drain line are arranged adjacent to each other. ### Claim 20 (depends on 16) The drive system as recited in claim 16 wherein the shielding device is arranged between the friction brake and the component. ### Claim 21 (depends on 20) The drive system as recited in claim 20 wherein the shielding device is arranged at a distance from the friction brake and/or from the component. ### Claim 22 (depends on 16) The drive system as recited in claim 16 wherein the friction brake is a drum brake or a disc brake. ### Claim 23 (depends on 16) The drive system as recited in claim 16 wherein the at least one component is the rotor and/or the stator. ### Claim 24 (depends on 16) The drive system as recited in claim 16 wherein the at least one component is the rotor. ### Claim 25 (depends on 16) The drive system as recited in claim 16 wherein the shielding device is attached to a stationary component of the drive system. ### Claim 26 (depends on 25) The drive system as recited in claim 25 wherein the stationary component is the electric motor. ### Claim 27 (depends on 16) An electromotive drive system for an electric and/or hybrid vehicle comprising the drive system as recited in claim 16. ### Claim 28 A shielding device for thermally shielding at least one component of an electric motor against heat input, the shielding device comprising: a ring-shaped body; and at least one coolant line for cooling the shielding device with a coolant. ### Claim 29 (depends on 28) The shielding device as recited in claim 28 wherein the coolant line is integrated into the ring-shaped body. ### Claim 30 (depends on 28) The shielding device as recited in claim 28 wherein the body and the coolant line are formed by at least two ring-shaped metal strips joined to each other. ### Claim 31 (depends on 30) The shielding device as recited in claim 30 wherein at least one of the metal strips has a fluted indentation forming the coolant line. ### Claim 32 (depends on 28) The shielding device as recited in claim 28 wherein the body is configured in the form of a closed ring. ### Claim 33 (depends on 28) The shielding device as recited in claim 28 wherein the coolant line is integrated into the body so as to circumferentially run around the body, and/or the coolant line has at least one meander section and/or at least one straight section and/or at least one reversing section. ### Claim 34 (depends on 33) The shielding device as recited in claim 33 wherein the coolant line alternatingly has the meander and straight sections, and having a helical configuration. ### Claim 35 (depends on 16) A method for the production of a shielding device as recited in claim 16, comprising the following method steps: a) providing a first metal strip with a fluted indentation forms the coolant line and providing a second metal strip, whereby the first and the second metal strips have the same width and a different length, whereby the length difference between the two metal strips is selected in such a way that the metal strips can be bent to form two concentric rings that are in contact with each other; and b) joining the first metal strip to the second metal strip. ### Claim 36 (depends on 35) The method as recited in claim 35 further comprising the following method steps: a1) bending the first metal strip to form a ring and joining the two end faces of the first metal strip to each other; and a2) bending the second metal strip to form a ring and joining the two end faces of the second metal strip to each other; and a3) concentrically arranging the rings formed from the first and second metal strips; whereby in method step b), the side edges of the rings formed from the first and second metal strips are joined to each other. ### Claim 37 (depends on 16) An electric and/or hybrid vehicle, comprising the drive system as recited in claim 16. ### Claim 38 (depends on 28) An electric and/or hybrid vehicle, comprising the drive system as recited in claim 28.