# US 12,015,310 B2 · Electric machine with winding temperature sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,310 B2 - Document ID: US12015310B2 - Status: Granted - Kind: B2 - Application number: 17/606,159 - Filed: 2020-03-30 - Published: 2022-06-23 - Granted: 2024-06-18 - Earliest claimed: 2019-04-26 - Assignees: Schaeffler Technologies AG & Co. KG - Applicants: Schaeffler Technologies AG & Co. KG - Inventors: Christian Silvery; Mike Czerlewitz; Matthias Kästle - Web page: https://patentgrep.com/patent/US12015310B2 ## CPC - H02K 11/25: Devices for sensing temperature, or actuated thereby - H02K 3/12: arranged in slots - H02K 15/0421: and consisting of single conductors, e.g. hairpins - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract An electric machine includes a stator having a winding, and at least one temperature sensor for detecting the temperature in the region of the winding. The temperature sensor is arranged on an elongate support that is elastic at least in the region of the temperature sensor. The support is placed in an elongate recess which is open to at least one of the sides of the windings and the temperature sensor is pressed into thermal contact with the winding by the support. ## Claims ### Claim 1 An electric machine comprising: a stator having a winding and at least one temperature sensor for detecting a temperature in a region of the winding, wherein the temperature sensor is arranged on an elongate support that is elastic at least in a region of the temperature sensor, wherein the support is slotted in a region of a leading end to form an upper spring arm and a lower spring arm, the temperature sensor is arranged on at least a portion of an outwardly facing surface of the upper spring arm, and wherein the support is placed in an elongate recess which is open to at least one side of the winding and the temperature sensor is pressed into thermal contact with the winding by the upper spring arm of the support. ### Claim 2 (depends on 1) The electric machine according to claim 1, wherein the recess runs radially and is open to at least an exterior of the winding. ### Claim 3 (depends on 1) The electric machine according to claim 1, wherein a cross-sectional geometry of the support corresponds to a cross-sectional geometry of the recess. ### Claim 4 (depends on 1) The electric machine according to claim 1, wherein one or more stops are provided on the support to limit an insertion movement when the temperature sensor is inserted in the recess. ### Claim 5 (depends on 1) The electric machine according to claim 1, wherein the support is, at least in the region in which the temperature sensor is arranged made of a plastic. ### Claim 6 (depends on 1) The electric machine according to claim 1, wherein the temperature sensor is arranged on an elongate sensor carrier and is connected via connecting cables to a cable connected to the sensor carrier. ### Claim 7 (depends on 6) The electric machine according to claim 6, wherein the support has an elongate, groove-like receiving section into which the sensor carrier is positioned. ### Claim 8 (depends on 7) The electric machine according to claim 7, wherein the receiving section is open on one side, allowing the sensor carrier to be inserted after the support has been placed into the recess. ### Claim 9 (depends on 1) The electric machine according to claim 1, wherein the support, together with the temperature sensor, is fixed in the recess by an adhesive. ### Claim 10 (depends on 1) The electric machine according to claim 1, further comprising a shrink tube pulled over the temperature sensor for protection thereof. ### Claim 11 An electric machine comprising: a stator having a winding; at least one temperature sensor configured for detecting a temperature of the winding; and an elongate support comprising: a groove-like receiving section on an upper side that is open on one end and includes a stop on the other end, wherein the temperature sensor is received in the receiving section via the open end and abuts the stop; a leading end inserted into a recess of the winding, wherein the temperature sensor is pressed into thermal contact with the winding by the support; and a first spring arm and a second spring arm formed in the leading end defining a slot therebetween, wherein the first spring arm and the second spring arm are configured to be spring loaded and force the temperature sensor away from the slot to press against the winding. ### Claim 12 (depends on 11) The electric machine according to claim 11, wherein the first spring arm or the second spring arm includes an upwardly extending projection which is provided with a leading bevel. ### Claim 13 (depends on 11) The electric machine according to claim 11, wherein the groove-like receiving section is formed at least partially on the first spring arm or the second spring arm. ### Claim 14 (depends on 11) The electric machine according to claim 11, wherein two stops are provided on a rear end of the support, opposite the leading end, and configured to limit an insertion movement of the support into the recess.