MOTOR AND VEHICLE

• Main Author: IGUCHI TAKURO
• Format: Patent
• Language: English; Japanese
• Published: 26.07.2023
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

To provide a motor with a lighter weight without affecting magnetic characteristics.SOLUTION: A motor has: a rotor 2 which has a magnet 21 annularly disposed on a radially outer side of a central axis extending in the vertical direction, and which is rotatable around the central axis; and a stator 3 which is disposed on a radially inner side of the rotor in a manner facing the magnet in the radial direction. The stator has: a stator core 31 which has an annular core back 311 and a plurality of teeth 312 extending radially outward from the core back; windings disposed on the teeth; an insulation member 33 which axially covers the stator core and is disposed between the teeth and the windings; and a magnetic spacer which is disposed between the stator core and the insulation member in the axial direction. The spacer has a protrusion 341 disposed on a radially outer edge. The protrusion extends in a direction axially away from the stator core and faces the magnet in the radial direction.SELECTED DRAWING: Figure 3 【課題】磁気特性に影響を与えることなく、重量を低減するモータを提供する。【解決手段】モータは、上下方向に延びる中心軸の径方向外側に環状に配置されたマグネット２１を有し、中心軸を中心として回転可能なロータ２と、ロータの径方向内側に、マグネットと径方向に対向して配置されるステータ３と、を有する。ステータは、環状のコアバック３１１、及びコアバックから径方向外側に延びる複数のティース３１２を有するステータコア３１と、ティースに配置される巻線と、ステータコアの軸方向を覆い、ティースと巻線との間に配置される絶縁部材３３と、軸方向においてステータコアと絶縁部材との間に配置される磁性体のスペーサと、を有する。スペーサは、径方向外縁部に配置された突出部３４１を有する。突出部は、軸方向においてステータコアから離れる方向に延び、マグネットと径方向に対向する。【選択図】図３