Rotor and motor including same
AssigneeLG Innotek Co., Ltd.
InventorsJae Hyun Park, Hee Soo Lim
Life of this patent
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Abstract
The present invention provides a rotor comprising: a rotor core; a cover arranged on an upper part of the rotor core; a magnet arranged on the outer circumferential surface of the rotor core; and a can member accommodating the rotor core and the magnet and coupled to the cover, wherein the cover includes a plurality of downwardly extending guides, the guides are arranged on the outer circumferential surface of the rotor core and are arranged inside the can member, and the can member includes at least one protrusion part protruding from a border thereof so as to be coupled to the cover. Therefore, the present invention provides an advantageous effect of excluding the use of an adhesive in the coupling of a can to a rotor core.
Claims20
A rotor comprising:
- a rotor core;
- a cover disposed above the rotor core;
- a magnet disposed on an outer circumferential surface of the rotor core;
- and
- a can member which accommodates the rotor core and the magnet and is combined with the cover,
- wherein the cover comprises a plurality of guides extending downward,
- wherein the plurality of guides are arranged on the outer circumferential surface of the rotor core and arranged inside the can member,
- wherein the cover comprises a cover body including an annular inner portion and an outer portion formed outside the inner portion,
- wherein the outer portion is formed to be higher than the inner portion based on an axial direction of the rotor core, and
- wherein the can member includes:
- a cylindrical body surrounding the magnet, the cylindrical body having a first end and a second end located opposite to the first end;
- and
- at least one protrusion portion which protrudes from the first end of the cylindrical body and which is configured to be combined with the cover.
A motor comprising:
- a stator;
- a rotor disposed inside the stator;
- a shaft couple to the rotor;
- wherein the rotor comprises:
- a rotor core;
- a cover disposed above the rotor core;
- a magnet disposed on an outer circumferential surface of the rotor core;
- and
- a can member which accommodates the rotor core and the magnet and is combined with the cover,
- wherein the cover comprises a plurality of guides extending downward,
- wherein the plurality of guides are arranged on the outer circumferential surface of the rotor core and arranged inside the can member,
- wherein the cover comprises a cover body including an annular inner portion and an outer portion formed outside the inner portion,
- wherein the outer portion is formed to be higher than the inner portion based on an axial direction of the rotor, and
- wherein the can member includes:
- a cylindrical body surrounding the magnet, the cylindrical body having a first end and a second end located opposite to the first end;
- and
- at least one protrusion portion which protrudes from the first end of the cylindrical body and which is configured to be combined with the cover.
Dependencies are inferred from the claim text.