Drive device and vehicle

A drive device comprising:

• a shaft extending in an axial direction along a rotation axis;
• a rotor fixed to the shaft and rotatable about the rotation axis;
• a stator facing the rotor in a radial direction with a gap between the stator and the rotor;
• a bearing rotatably supporting the shaft;
• a housing accommodating the rotor, the stator, and the bearing;
• a first neutralizing device that is arranged on one axial side of the bearing and electrically connects the shaft and the housing;
• and
• a seal member arranged between the bearing and the first neutralizing device in the axial direction, and
• a rotation detector that detects a rotation angle of the shaft,
• wherein the rotation detector is arranged between the bearing and the first neutralizing device in the axial direction.

A drive device comprising:

• a shaft extending in an axial direction along a rotation axis;
• a rotor fixed to the shaft and rotatable about the rotation axis;
• a stator facing the rotor in a radial direction with a gap between the stator and the rotor;
• a bearing rotatably supporting the shaft;
• a housing accommodating the rotor, the stator, and the bearing;
• a first neutralizing device that is arranged on one axial side of the bearing and electrically connects the shaft and the housing;
• and
• a seal member arranged between the bearing and the first neutralizing device in the axial direction, and
• the shaft includes:
• a shaft tubular portion that has a tubular shape surrounding the rotation axis;
• and
• a shaft through-hole penetrating the shaft tubular portion in the radial direction or in a direction obliquely intersecting the radial direction and the axial direction, and
• the shaft further includes a shaft wall that is arranged inside the shaft tubular portion and expands in the radial direction, and
• the shaft wall is arranged at an axial position identical to the seal member or on the one axial side of a radially inner end portion of the shaft through-hole and on another axial side of the seal member.

A drive device comprising:

• a shaft extending in an axial direction along a rotation axis;
• a rotor fixed to the shaft and rotatable about the rotation axis;
• a stator facing the rotor in a radial direction with a gap between the stator and the rotor;
• a bearing rotatably supporting the shaft;
• a housing accommodating the rotor, the stator, and the bearing;
• a first neutralizing device that is arranged on one axial side of the bearing and electrically connects the shaft and the housing;
• and
• a seal member arranged between the bearing and the first neutralizing device in the axial direction, a shaft extending in an axial direction along a rotation axis;
• a rotor fixed to the shaft and rotatable about the rotation axis;
• a stator facing the rotor in a radial direction with a gap between the stator and the rotor;
• a bearing rotatably supporting the shaft;
• a housing accommodating the rotor, the stator, and the bearing;
• a first neutralizing device that is arranged on one axial side of the bearing and electrically connects the shaft and the housing;
• and
• a seal member arranged between the bearing and the first neutralizing device in the axial direction, and
• a rotation detector that detects a rotation angle of the shaft,
• the rotation detector is arranged on the one axial side of the first neutralizing device.