Fluid supply device with an elastic member having high durability
A fluid supply device includes an electric motor, an exterior case, a fixing member, a harness, a lid which includes a holding portion, and a stopper. An elastic member, which has annular-shaped, is disposed in a compressed manner between the outer circumferential surface of the electric motor and the inner circumferential surface of the exterior case. The elastic member is compressed to apply a restoring force to the electric motor in a radial direction of the electric motor, and apply a restoring force to the holding portion of the lid.
1 . A fluid supply device comprising:
an electric motor serving as a driving source for supplying a fluid to an outside;
an exterior case having a cylindrical shape and configured to accommodate the electric motor;
a fixing member configured to fix the electric motor to be able to prevent movement of the electric motor in an axial direction of the electric motor inside the exterior case;
a harness connected to the electric motor and configured to supply electricity;
a lid comprising: an inner lid which is fitted to an inner circumferential surface of the exterior case to close an end portion of the exterior case, supports the harness extending from the electric motor to an outer side of the exterior case, and includes a holding portion having a cylindrical shape and holding an outer circumferential surface of the electric motor over a circumference thereof; and an outer lid which covers at least a part of an end portion, at a side opposite to a side where the electric motor is provided in the axial direction, of the inner lid; and
a stopper configured to prevent coming-off of the lid from the exterior case, wherein:
an elastic member, which has an annular shape, is disposed in a compressed manner between the outer circumferential surface of the electric motor and the inner circumferential surface of the exterior case;
the elastic member is compressed to apply a restoring force to the electric motor in a radial direction of the electric motor, and apply a restoring force to the outer lid of the lid; and
the elastic member is the inner lid made of an elastic material.
2 . The fluid supply device according to claim 1 , wherein
the stopper is formed integrally with the lid.
3 . The fluid supply device according to claim 2 , wherein
a seal member is disposed to close a gap between the harness and the lid.
4 . The fluid supply device according to claim 1 , wherein
a seal member is disposed to close a gap between the harness and the lid.
5 . A fluid supply device comprising:
an electric motor serving as a driving source for supplying a fluid to an outside;
an exterior case having a cylindrical shape and configured to accommodate the electric motor;
a fixing member configured to fix the electric motor to be able to prevent movement of the electric motor in an axial direction of the electric motor inside the exterior case;
a harness connected to the electric motor and configured to supply electricity;
a lid which is fitted to an inner circumferential surface of the exterior case to close an end portion of the exterior case, supports the harness extending from the electric motor to an outer side of the exterior case, and includes a holding portion having a cylindrical shape and holding an outer circumferential surface of the electric motor over a circumference thereof; and
a stopper configured to prevent coming-off of the lid from the exterior case, wherein:
an elastic member, which has an annular shape, is disposed in a compressed manner between the outer circumferential surface of the electric motor and the inner circumferential surface of the exterior case;
the elastic member is compressed to apply a restoring force to the electric motor in a radial direction of the electric motor, and apply a restoring force to the holding portion of the lid;
an outer circumferential surface of the holding portion of the lid and the inner circumferential surface of the exterior case compress the elastic member; and
the elastic member applies a force to the holding portion of the lid in the radial direction.
6 . The fluid supply device according to claim 5 , wherein
the stopper is formed integrally with the lid.
7 . The fluid supply device according to claim 5 , wherein
a seal member is disposed to close a gap between the harness and the lid.
8 . A fluid supply device comprising:
an electric motor serving as a driving source for supplying a fluid to an outside;
an exterior case having cylindrical-shaped and configured to accommodate the electric motor;
a fixing member configured to fix the electric motor to be able to prevent movement of the electric motor in an axial direction of the electric motor inside the exterior case;
a harness connected to the electric motor and configured to supply electricity;
a lid which is fitted to an inner circumferential surface of the exterior case to close an end portion of the exterior case, supports the harness extending from the electric motor to an outer side of the exterior case, and includes a holding portion having cylindrical-shaped and holding an outer circumferential surface of the electric motor over a circumference thereof; and
a stopper configured to prevent coming-off of the lid from the exterior case, wherein:
an elastic member, which has annular-shaped, is disposed in a compressed manner between the outer circumferential surface of the electric motor and the inner circumferential surface of the exterior; and
the elastic member is compressed to apply a restoring force to the electric motor in a radial direction of the electric motor, and apply a restoring force to the holding portion of the lid.