Lg Innotek Co., Ltd.

Jin Su Pyeon

Tae Ho Kim

Shung Hun Woo

Seong Jin Kim

Ja Young Seo

Nam Hoon Kim

Young Gu Kang

Gi Chang Moon

Bong Geon Kim

An embodiment relates to a rotor and a motor comprising same, the rotor comprising: a rotor core; and a plurality of first magnets and second magnets arranged along the outer circumferential surface of the rotor core, wherein each of the second magnets is disposed between the first magnets, and the outer circumferential surface of each of the first magnets has a curvature greater than that of the outer circumferential surface of the second magnet. Therefore, the motor can reduce cogging torque by using the first magnet and the second magnet having different shapes, and thus can improve the quality of the motor.

Rotor and motor including same

An embodiment provides a stator comprising a stator core having a plurality of teeth and coils wound around the teeth, wherein the tooth includes a body around which the coil is wound and a shoe connected to the body, the shoe includes a plurality of grooves and a curvature center of the inner peripheral surface of the shoe is the same as the center of the stator core.

Stator and motor including same

The present invention may provide a motor including a rotor and a stator disposed to correspond to the rotor, wherein the rotor includes a rotor core and a magnet disposed on the rotor core, a tooth of the stator includes a first surface facing the magnet, the magnet includes a second surface in contact with the rotor core and a third surface which is spaced apart from the second surface and faces the first surface, the third surface includes a flat surface, and a first length which is a shortest distance of the flat surface is in the range of 46% to 50% of a second length of a shortest distance of the first surface.

Motor

An embodiment relates to a motor comprising: a shaft; a rotor engaged with the shaft; and a stator disposed outside the rotor, wherein the stator includes a stator core formed by stacking a plurality of sheets and a coil wound around the stator core, the stator core including a yoke having a hole formed therein, a tooth protruding radially from the yoke, and an adhesive member disposed in the hole, the hole being disposed on an imaginary line L extending radially along the side of the tooth. Accordingly, the motor can form a stator core by stacking sheets, and reduce noise and vibration by filling an adhesive member in a hole formed in the stator core.

A rotor position detecting apparatus includes a rotor, a stator disposed in correspondence with the rotor and a sensing assembly disposed at one side of the rotor. The sensing assembly includes a substrate, a first magnetic element part and a second magnetic element part disposed on the substrate and a first ground pattern and a second ground pattern disposed on the substrate. The first ground pattern is electrically connected to the first magnetic element part. The second ground pattern is electrically connected to the second magnetic element part, and the first ground pattern is electrically disconnected from the second ground pattern.

Motor, and motor-driven steering apparatus having same

A circuit board comprising a first power terminal, a second power terminal spaced apart from the first power terminal, a first ground terminal, a second ground terminal spaced apart from the first ground terminal, a first magnetic element part disposed along a first circular arc having a first radius, and a second magnetic element part disposed along a second circular arc having a second radius greater than the first radius, wherein an angle of at least one portion of the first circular arc is not overlapped with an angle of the second circular arc.

Circuit board, motor and electronic power steering system

An embodiment relates to a stator and a motor including the stator, the stator comprising: a stator core; a coil wound around the stator core; and an insulator disposed between the stator core and the coil, wherein the insulator includes: a body around which the coil is wound; a first guide protruding from the inside of the body; a second guide protruding on the outside of the body a first protrusion protruding outward from the lateral surface of the first guide; and a second protrusion protruding inward from the inner surface of the second guide, and an insulating member radially disposed between the first guide and the second guide is bent in a circumferential direction by means of the first protrusion and the second protrusion. Therefore, the motor can inhibit the movement and separation of insulating paper.

The present disclosure provides techniques for securing a running stability of a vehicle, whereby danger of safety accident can be significantly reduced during operation of a vehicle by enabling a minimum number of Hall elements to be driven even during damage to a power terminal or to a ground unit due to defect in circuit by separately forming a power terminal supplying a power to a plurality of magnetic elements in a plurality of numbers.

The present invention may provide a motor including a housing; a stator disposed in the housing; a rotor disposed in the stator; a shaft coupled to the rotor; and a wire assembly connected to the stator, wherein the wire assembly includes a first ground part, the housing includes a body and a bracket including a first fastening hole and disposed on an upper portion of the body, and the bracket includes a third ground part, which is inserted into the first fastening hole and thereby contacts the body, and a second ground part, which is connected to the third ground part and is disposed so as to be exposed to the bottom surface of the bracket and thereby contacts the first ground part.

An embodiment of the present invention relates to a rotor position detecting apparatus and a motor and a motor-driven steering apparatus comprising same, the rotor position detecting apparatus comprising: a substrate, a magnetic Hall-signal element mounted on the substrate, and a first ground pattern disposed on one side of the substrate and electrically connected to the magnetic Hall-signal element. As a result, the motor can reduce probability of faults due to electromagnetic waves or static electricity.

Growing community of inventors

Seoul, South Korea

Jin Su Pyeon