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US 10,833,564 B2Granted
Electric machine temperature sensor
AssigneeFord Global Technologies, LLC
InventorCasey Taylor Dunn
Life of this patent
Estimating the term…
Abstract
An electric machine includes a stator having hairpin windings with at least first and second phases and a neutral bridge attached to the at least first and second phases. The neutral bridge defines a planar body and a mounting feature extending from an upper surface of the body and cooperating with the body to define an opening. A temperature sensor of the electric machine includes an insertion portion having a sensing element. The insertion portion is received in the opening.
Claims19
An electric machine comprising:
- a stator including hairpin windings formed of interconnected hairpins arranged at least first and second phases of the electric machine and a neutral bridge attached to the at least first and second phases, the neutral bridge having a planar body defining at least first and second hairpin openings and a mounting feature extending from an upper surface of the body and cooperating with the body to define a temperature-sensor opening, wherein the first opening receives one of the hairpins of the first phase therein and the second opening receives one of the hairpins of the second phase therein;
- and
- a temperature sensor including an insertion portion having a sensing element, the insertion portion being received in the temperature-sensor opening.
An electric machine comprising:
- a stator including windings and an electrical bridge attached to the windings, wherein the bridge includes a planar body and an integral mounting feature extending from an upper surface of the body and cooperating with the body to define an opening;
- and
- a temperature sensor including an insertion portion having a sensing element, the insertion portion being received in the opening, wherein the insertion portion further has a locking feature configured to engage with the mounting feature and a base, wherein the insertion portion extends from the base, and the locking feature is adjacent a backside of the mounting feature and the base is adjacent a frontside of the mounting feature.
An electric machine comprising:
- a stator including a stator core defining a plurality of slots and hairpin windings disposed in the slots;
- an electrical bridge attached to the windings, the electrical bridge including a planar body and an integrally formed arch portion extending from an upper surface of the body and cooperating with the body to define an opening;
- and
- a temperature sensor including
- a base,
- a sensor head having a sensing element and being received in the opening with the sensing element adjacent to the upper surface, and
- a deflectable locking feature projecting from the sensor head and engageable with the arch portion, wherein the base and the locking feature sandwich the arch portion to secure the temperature sensor in place.
4 more elements
Dependencies are inferred from the claim text.