# US 2026/0066718 A1 · Stator and motor including same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0066718 A1 - Document ID: US20260066718A1 - Status: Published application - Kind: A1 - Application number: 19/313,103 - Filed: 2025-08-28 - Published: 2026-03-05 - Earliest claimed: 2024-08-29 - Assignees: LG Magna E-Powertrain Co., Ltd. - Applicants: LG Magna E-Powertrain Co., Ltd. - Inventors: Gookjin Seol; Chiho An; Jonghyun Lee; Yongsoo Kang; Jeongyeon Min - Web page: https://patentgrep.com/patent/US20260066718A1 ## CPC - H02K 1/16: Stator cores with slots for windings - H02K 3/12: arranged in slots - H02K 3/28: Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) - H02K 2213/03: Machines characterised by numerical values, ranges, mathematical expressions or similar information - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract A stator and a motor including the same are disclosed. The stator according to an embodiment of the present disclosure includes: a stator core in which a plurality of slots are formed; and a plurality of windings between an inner periphery and an outer periphery of the stator core, and a first winding is disposed throughout a plurality of layers, a thickness of a second layer adjacent to the inner periphery is less than a thickness of a first layer adjacent to the outer periphery, and the first winding is connected in series in a first area, and connected in parallel in a second area, and the first winding includes a first hairpin, and a second hairpin having a larger length than the first hairpin. Accordingly, it is possible to reduce the heat generation upon the motor rotation while a number of welding members is reduced. ## Claims ### Claim 1 A stator comprising: a stator core in which a plurality of slots are formed; and a plurality of windings between an inner periphery and an outer periphery of the stator core, wherein a first winding corresponding to a first phase among the plurality of windings is disposed throughout a plurality of layers between the outer periphery and the inner periphery of the stator core, wherein a thickness of a second layer adjacent to the inner periphery is less than a thickness of a first layer adjacent to the outer periphery among the plurality of layers, and wherein the first winding is connected in series in a first area between the outer periphery and the inner periphery of the stator core, and the first winding is connected in parallel in a second area closer to the inner periphery than the first area between the outer periphery and the inner periphery, and wherein the first winding includes: a first hairpin disposed in the first area, and a second hairpin disposed in the second area and having a larger length than the first hairpin. ### Claim 2 (depends on 1) The stator of claim 1, wherein the first winding further includes: a first connection member connected to the first hairpin in the first area, and a second connection member connected to the second hairpin in the second area. ### Claim 3 (depends on 2) The stator of claim 2, wherein a number of second connection members is less than a number of first connection members. ### Claim 4 (depends on 1) The stator of claim 1, wherein the second hairpin includes: a first pin part spaced at a first interval, and a second pin part connected to the first pin part, and spaced at a second interval greater than the first interval. ### Claim 5 (depends on 1) The stator of claim 1, wherein the second hairpin includes pin parts spaced at an equal interval. ### Claim 6 (depends on 1) The stator of claim 1, wherein the second hairpin includes: a first pin part spaced at a first interval, a second pin part spaced at a second interval greater than the first interval, and a third pin part spaced at a third interval greater than the first interval and less than the second interval. ### Claim 7 (depends on 6) The stator of claim 6, wherein a number of third pin parts in the second hairpin is greater than a number of first pin parts or a number of second pin parts. ### Claim 8 (depends on 1) The stator of claim 1, wherein a size of the first area is greater than a size of the second area. ### Claim 9 (depends on 1) The stator of claim 1, wherein a thickness of the first hairpin is greater than a thickness of the second hairpin. ### Claim 10 (depends on 1) The stator of claim 1, wherein the first winding includes even wires. ### Claim 11 (depends on 1) The stator of claim 1, wherein the first winding is disposed throughout first to eighth layers toward the inner periphery from the outer periphery, and wherein a thickness of the fifth to eighth layers is less than a thickness of the first to fourth layers. ### Claim 12 (depends on 11) The stator of claim 11, wherein some of the even wires in the first winding are disposed in series in the first layer and the third layer, and disposed in parallel in the fifth layer and the seventh layer, and wherein other some of the even wires in the first winding are disposed in series in the second layer and the fourth layer, and disposed in parallel in the sixth layer and the eighth layer. ### Claim 13 A stator comprising: a stator core in which a plurality of slots are formed; and a plurality of windings between an inner periphery and an outer periphery of the stator core, wherein a first winding corresponding to a first phase among the plurality of windings is disposed throughout a plurality of layers between the outer periphery and the inner periphery of the stator core, wherein the first winding further includes: a first hairpin disposed in a first area between the outer periphery and the inner periphery of the stator core, and a second hairpin disposed in a second area closer to the inner periphery than the first area, and having a larger length than the first hairpin, and wherein a number of second hairpins is less than a number of first hairpins. ### Claim 14 (depends on 13) The stator of claim 13, further comprising: a first connection member connected to the first hairpin in the first area, and a second connection member connected to the second hairpin in the second area. ### Claim 15 (depends on 14) The stator of claim 14, wherein a number of second connection members is less than a number of first connection members. ### Claim 16 (depends on 13) The stator of claim 13, wherein the second hairpin includes: a first pin part spaced at a first interval, and a second pin part connected to the first pin part, and spaced at a second interval greater than the first interval. ### Claim 17 (depends on 13) The stator of claim 13, wherein the second hairpin includes pin parts spaced at an equal interval. ### Claim 18 (depends on 13) The stator of claim 13, wherein the second hairpin includes: a first pin part spaced at a first interval, and a second pin part spaced at a second interval greater than the first interval, and a third pin part spaced at a third interval greater than the first interval and less than the second interval. ### Claim 19 (depends on 18) The stator of claim 18, wherein a number of third pin parts in the second hairpin is greater than a number of first pin parts or a number of second pin parts. ### Claim 20 A motor comprising: a stator; and a rotor disposed in a hollow in the stator and rotated wherein the stator comprises: a stator core in which a plurality of slots are formed; and a plurality of windings between an inner periphery and an outer periphery of the stator core, wherein a first winding corresponding to a first phase among the plurality of windings is disposed throughout a plurality of layers between the outer periphery and the inner periphery of the stator core, wherein a thickness of a second layer adjacent to the inner periphery is less than a thickness of a first layer adjacent to the outer periphery among the plurality of layers, and wherein the first winding is connected in series in a first area between the outer periphery and the inner periphery of the stator core, and the first winding is connected in parallel in a second area closer to the inner periphery than the first area between the outer periphery and the inner periphery, and wherein the first winding includes: a first hairpin disposed in the first area, and a second hairpin disposed in the second area and having a larger length than the first hairpin.