Reciprocating motor
AssigneeLG Electronics Inc.
InventorSeong-Yeol Hyun
Life of this patent
Estimating the term…
Abstract
A reciprocating motor including a piston operatively connected with a magnet unit, a cylinder having an open end to receive the piston and having a groove formed at a circumference along an outer surface thereof near the open end, a stator assembly positioned around the cylinder and cooperating with the magnet unit to allow the piston to reciprocate within the cylinder, and a ring member being placed into the groove of the cylinder to be frictionally urged towards a portion of the stator assembly to maintain contact with and hold the portion of the stator assembly in place on the outer surface of the cylinder.
Claims20
A reciprocating motor, comprising:
- a piston operatively connected with a magnet unit;
- a cylinder having an open end to receive the piston and having a groove formed at a circumference along an outer surface thereof near the open end;
- a stator assembly positioned around the cylinder and cooperating with the magnet unit to allow the piston to reciprocate within the cylinder;
- and
- a ring member being placed into the groove of the cylinder to be frictionally urged towards a portion of the stator assembly to maintain contact with and hold the portion of the stator assembly in place on the outer surface of the cylinder.
A reciprocating motor comprising:
- a cylinder having a first end with an opening and a second end opposing the first end;
- a stator located around the cylinder, the stator having an outer portion and an inner portion with a gap therebetween;
- and
- a fixation element that fixes the inner portion of the stator to the cylinder by being inserted into a channel of the cylinder formed along a circumferential portion near the first end.
A piston housing for a motor with a stator assembly, the housing comprising:
- a hollow cylindrical body having an open end and a closed end that opposes the open end to allow a piston to reciprocate therein;
- and
- a groove formed along an outer circumference of the hollow cylindrical body adjacent to the open end,
- wherein the groove comprises a groove opening, a groove bottom, and an inclined wall, the inclined wall being sloped from the groove opening towards the groove bottom in a direction away from the open end of the hollow cylindrical body, and
- wherein a particular angle of the inclined wall facilitates insertion of an annular element into the groove and presses the inserted annular element towards a portion of the stator assembly to secure the stator assembly to the hollow cylindrical body.
Dependencies are inferred from the claim text.