Motor and blower including the same
A motor includes a rotor, a stator, a stator accommodating portion, a seal, and a lid. The stator opposes the rotor with a gap interposed radially inward. The stator accommodating portion accommodates the stator, includes an opening on one end surface in an axial direction, and has a tubular shape. The seal is filled in the stator accommodating portion. The lid covers the opening. The stator accommodating portion includes a cutout and a pullout piece. The cutout is recessed from one end in the axial direction to the other side in the axial direction, and a lead wire connected to the stator is pulled out. The pullout piece protrudes radially outward from a bottom of the cutout, and the lead wire is positioned between the lid and the pullout piece via an elastic portion on an end surface on one side in the axial direction of the pullout piece.
1. A motor comprising:
a rotor that is rotatable about a rotation axis;
a stator that opposes the rotor with a gap interposed radially inward;
a stator accommodating portion in a tubular shape that accommodates the stator and includes an opening on one end surface in an axial direction;
a seal filled in the stator accommodating portion; and
a lid above the stator that covers the opening; wherein
the stator accommodating portion includes:
a cutout recessed from one end in the axial direction to another side in the axial direction and from which a lead wire electrically connected to the stator is pulled out to a radially outer position; and
a pullout piece that protrudes radially outward from a bottom of the cutout and on which the lead wire is provided;
the pullout piece includes a pullout inclined portion;
the pullout inclined portion is inclined in the one end in the axial direction and extends radially outward from the bottom of the cutout;
the lead wire is positioned between the lid and the pullout piece via an elastic portion located on an end surface on one side in the axial direction of the pullout piece; and
an upper end of the elastic portion in the axial direction is located above an upper end of the seal in the axial direction, the lead wire is provided directly on the upper end of the elastic portion.
2. The motor according to claim 1 , wherein the pullout piece includes a pullout projection protruding from the end surface on the one side in the axial direction.
3. The motor according to claim 1 , wherein the pullout piece includes a pullout wall portion that protrudes in the one side in the axial direction from both end portions in a radial direction and extends in the radial direction.
4. The motor according to claim 1 , wherein
the stator accommodating portion includes:
a stator tube that surrounds the stator from radially outside;
an accommodating lid that covers the stator from another side in the axial direction and expands in the radial direction; and
an accommodating inclined portion that couples the stator tube and the accommodating lid and is inclined radially inward toward the other side in the axial direction.
5. The motor according to claim 1 , wherein the stator accommodating portion includes an accommodating projection protruding from a radially inner surface and extending in the axial direction.
6. The motor according to claim 1 , wherein the elastic portion is fixed to the pullout piece via an adhesive layer.
7. The motor according to claim 1 , wherein the elastic portion includes a rubber portion.
8. A blower comprising:
the motor according to claim 1 ;
an impeller that is fixed to the rotor to generate an airflow in the axial direction; and
a housing body that extends along the rotation axis, has a tubular shape, includes end surfaces in the axial direction opened, and internally includes a blowing flow path; wherein
the motor and the impeller are accommodated inside the housing body.
9. The motor according to claim 1 , wherein at least a portion of the seal is provided directly on an axially upper surface of the pullout inclined portion.