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US 11,799,348 B2Granted
Step actuator
AssigneeLG Innotek Co., Ltd.
InventorHong Kon Lee
Life of this patent
Estimating the term…
Abstract
Disclosed is a step actuator. The step actuator includes a housing; a stator installed in the housing; a rotor positioned radially inward from the stator, the rotor rotating and protruding from one side of the housing; a bearing installed at one side of the housing so as to be coupled with the rotor; a bearing cover coupled with one side of the housing to restrain movement of the bearing; a screw member coupled with the rotor to linearly move according to rotation of the rotor; and a mounting member coupled to the bearing cover to support the screw member.
Claims15
A step actuator comprising:
- a stator including a housing and a bobbin;
- a rotor disposed in the stator and including a magnet and a motion transmission member;
- a screw member coupled with the rotor;
- a cover coupled to an upper side of the housing;
- a bearing disposed between the motion transmission member and the cover;
- and
- a bracket disposed on an upper side of the cover,
- wherein the bracket includes a first support tube and a second support tube smaller than the first support tube,
- wherein a first step structure is formed between the first support tube and the second support tube,
- wherein the cover includes a coupling pipe disposed on a side of the bearing and a locking rim formed at an upper end of the coupling pipe,
- wherein the coupling pipe is disposed in the first support tube, the coupling pipe and the locking rim are integrally formed, and the locking rim extends from an inner circumferential surface of the coupling pipe to an upper side of the bearing,
- wherein an upper surface of the locking rim is in contact with the first step structure, and
- wherein a lower surface of the locking rim is in contact with an upper surface of an outer ring of the bearing.
10 more elements
A step actuator comprising:
- a stator including a housing and a bobbin;
- a rotor disposed in the stator and including a magnet and a motion transmission member;
- a screw member coupled with the rotor;
- a cover coupled to an upper side of the housing;
- and
- a bearing disposed between the motion transmission member and the cover;
- wherein the motion transmission member includes a support frame formed on an outer circumferential surface of an upper end thereof and a step structure formed on an outer circumferential surface of a central portion thereof,
- wherein the cover includes a locking rim disposed on a side of the bearing, and a stopper disposed under the bearing, and
- wherein an outer ring of the bearing is disposed between the locking rim and the stopper of the cover.
6 more elements
A step actuator comprising:
- a stator including a housing and a bobbin;
- a rotor disposed in the stator and including a magnet and a motion transmission member;
- a screw member coupled with the rotor;
- a cover coupled with the housing;
- a bearing disposed between the motion transmission member and the cover;
- and
- a bracket disposed on the cover;
- wherein the bracket includes a first support tube and a second support tube smaller than the first support tube,
- wherein a first step structure is formed between the first support tube and the second support tube,
- wherein the cover includes a coupling frame, a coupling pipe extending from the coupling frame, and a locking rim formed at an upper end of the coupling pipe,
- wherein the coupling pipe is disposed in the first support tube,
- wherein the locking rim is arranged to correspond to the first step structure,
- wherein the coupling tube and the locking rim are integrally formed, and the locking rim extends from an inner circumferential surface of the coupling tube to an upper side of the bearing,
- wherein an upper surface of the locking rim is in contact with the first step structure, and a lower surface of the locking rim is in contact with an upper surface of an outer ring of the bearing,
- wherein the cover includes a protrusion protruding from the coupling frame, and
- wherein the protrusion is coupled to the bracket to inhibit rotation of the bracket.
13 more elements
A step actuator comprising:
- a stator including a housing and a bobbin;
- a rotor disposed in the stator and including a magnet and a motion transmission member;
- a screw member coupled with the rotor;
- a cover coupled to an upper side of the housing;
- and
- a bearing disposed between the motion transmission member and the cover;
- wherein the motion transmission member includes a support frame formed on an outer circumferential surface of an upper end thereof and a second step structure formed on an outer circumferential surface of a central portion thereof,
- wherein the cover comprises a coupling frame, a coupling pipe extending from the coupling frame, a locking rim formed at an upper end of the coupling pipe, and a stopper disposed under the bearing, and
- wherein an outer ring of the bearing is disposed between the locking rim and the stopper of the cover.
6 more elements
Dependencies are inferred from the claim text.