Abstract: A drive motor includes a stator having an accommodating space and a rotor rotatably provided in the accommodating space and rotated by a magnetic interaction with the stator, wherein the rotor includes a rotor core into which a magnetic member is inserted and first and second flux barriers formed to penetrate through the rotor core and extending along a circumferential direction of the rotor core from both sides of the magnetic member, wherein a length of the first flux barrier and a length of the second flux barrier are different from each other.

Abstract: A motor-operated compressor includes a compression unit including a compression chamber formed by a plurality of scrolls engaged with each other. The compressor includes a rotation shaft having one end coupled to one of the scrolls and a rotor coupled with another end of the rotation shaft. The compressor includes a stator radially separated from the rotor by a predetermined gap. The compressor includes a casing having a motor chamber. The stator is inserted in the motor chamber and divides the motor chamber into a first space and a second space. The casing includes an inlet port coupled to the first space to guide a refrigerant toward the motor chamber. The casing also includes a suction guide passage coupled to the second space to guide the refrigerant sucked through the inlet port toward the compression unit. A communication passage portion in the rotation shaft communicates the first and second spaces.

Abstract: The present disclosure provides an electric compressor comprising a main housing, a motor part disposed in the main housing and comprising a stator comprising a rotor accommodating portion and a rotor rotatably disposed in the rotor accommodating portion, a compression part rotatably connected to the motor part, and an inverter part electrically connected to the motor part. The motor part is disposed in a motor room formed inside the main housing, the stator comprises a plurality of insulating protrusions protruding from an outer circumferential surface of the stator, and the plurality of insulating protrusions is configured to be brought into contact with an inner circumferential surface of the motor room.

Abstract: A reciprocating motor and a reciprocating compressor having a reciprocating motor are provided. The reciprocating motor may include a stator having a magnet coil, provided with an air gap respectively formed at both sides in an axial direction by interposing the magnet coil therebetween; a mover inserted into the stator, reciprocating with respect to the stator as at least one magnet is arranged at any one of the air gaps formed at both sides and a non-magnet is arranged at the other one of the air gaps; and a magnetic resonance spring that resonates the mover with respect to the stator using a force for moving toward low magnetic resistance between the mover and the stator. The reciprocating motor and the reciprocating compressor having a reciprocating motor may be downsized and lightweight, and may obtain high efficiency.

Abstract: Disclosed is a lithium battery comprising: a cathode; an anode including a passivation film; and an electrolyte interposed between the cathode and the anode, wherein the passivation film includes 0.5 wt % or more and less than 5 wt % of sulfur (S), and the passivation film has a heating value of 50 J/g or less when a nail penetrates the passivation film. The lithium battery has improved penetration characteristics.

Abstract: The present disclosure provides an electric compressor comprising a main housing, a motor part disposed in the main housing and comprising a stator comprising a rotor accommodating portion and a rotor rotatably disposed in the rotor accommodating portion, a compression part rotatably connected to the motor part, and an inverter part electrically connected to the motor part. The motor part is disposed in a motor room formed inside the main housing, the stator comprises a plurality of insulating protrusions protruding from an outer circumferential surface of the stator, and the plurality of insulating protrusions is configured to be brought into contact with an inner circumferential surface of the motor room.

Abstract: The present disclosure provides a motor part comprising a bobbin part comprising a plurality of coils housed therein, a first insulation part adjacent to an inner circumferential surface of the motor chamber, and a second insulation part spaced a predetermined distance from the first insulation part. The plurality of coils are housed in a coil housing spare part formed between the first insulation part and the second insulation part. The first insulation part is located between the inner circumferential surface of the motor chamber and the plurality of coils. The plurality of coils are located adjacent to the second insulation part. Accordingly, insulation caused by separation from the inner circumferential surface of the motor chamber and insulation caused by the first insulation part may be expected. The insulation may be achieved by the plurality of coils being housed in the bobbin part.

Abstract: According to one embodiment, there is provided a motor-operated compressor comprising a rotation shaft, a first scroll configured to perform an orbiting motion and comprising an eccentric coupling portion eccentrically coupled to the rotation shaft, a second scroll coupled to the first scroll to form a pair of compression chambers, a rotor coupled to the rotation shaft, a stator forming an accommodation space configured to accommodate the rotor, and an eccentricity compensation portion configured to compensate for an eccentric displacement of a center of gravity of the rotation shaft, in response to the orbiting motion of the first scroll. The eccentricity compensation portion comprises a first member positioned on one end of the stator and a second member positioned on the rotor adjacent to the first member.

Abstract: A driving motor includes a stator having an accommodating space formed therein and a rotor having a magnetic member. The rotor is rotatably supported in the accommodating space, and rotated by a magnetic interaction with the stator. The rotor may include a plurality of stacked bodies, with the stacked bodies including at least two magnetic members having different magnetic forces from each other.

Abstract: A drive motor includes a stator having an accommodating space and a rotor rotatably provided in the accommodating space and rotated by a magnetic interaction with the stator, wherein the rotor includes a rotor core into which a magnetic member is inserted and first and second flux barriers formed to penetrate through the rotor core and extending along a circumferential direction of the rotor core from both sides of the magnetic member, wherein a length of the first flux barrier and a length of the second flux barrier are different from each other.

Abstract: A motor-operated compressor includes a compression unit including a compression chamber formed by a plurality of scrolls engaged with each other. The compressor includes a rotation shaft having one end coupled to one of the scrolls and a rotor coupled with another end of the rotation shaft. The compressor includes a stator radially separated from the rotor by a predetermined gap. The compressor includes a casing having a motor chamber. The stator is inserted in the motor chamber and divides the motor chamber into a first space and a second space. The casing includes an inlet port coupled to the first space to guide a refrigerant toward the motor chamber. The casing also includes a suction guide passage coupled to the second space to guide the refrigerant sucked through the inlet port toward the compression unit. A communication passage portion in the rotation shaft communicates the first and second spaces.

Abstract: A linear compressor includes a cylinder defining a compression space for a refrigerant, a piston reciprocated in an axis direction within the cylinder, and a linear motor providing power to the piston. The linear motor includes an inner stator disposed outside the cylinder, the inner stator including a center core and a side core disposed on at least one side of the center core, an outer stator disposed to be spaced outward from the inner stator in a radius direction, a permanent magnet movably disposed in an air gap defined between the inner stator and the outer stator, and a deformation prevention device for preventing the inner stator from being deformed.

Abstract: Provided is a linear compressor. The linear compressor includes a cylinder defining a compression space for a refrigerant, a piston reciprocated in an axis direction within the cylinder, and a linear motor providing power to the piston. The linear motor includes an inner stator disposed outside the cylinder, the inner stator including a center core and a side core disposed on at least one side of the center core, an outer stator disposed to be spaced outward from the inner stator in a radius direction, and a magnet movably disposed in an airgap defined between the inner stator and the outer stator. The side core includes a core body and a lead-out guide device coupled to the core body to expose or lead out a power line to the outside of the side core.

Abstract: A reciprocating motor and a reciprocating compressor having a reciprocating motor are provided. The reciprocating motor may include a stator having a magnet coil, provided with an air gap respectively formed at both sides in an axial direction by interposing the magnet coil therebetween; a mover inserted into the stator, reciprocating with respect to the stator as at least one magnet is arranged at any one of the air gaps formed at both sides and a non-magnet is arranged at the other one of the air gaps; and a magnetic resonance spring that resonates the mover with respect to the stator using a force for moving toward low magnetic resistance between the mover and the stator. The reciprocating motor and the reciprocating compressor having a reciprocating motor may be downsized and lightweight, and may obtain high efficiency.

Abstract: Provided is a linear compressor. The linear compressor includes a cylinder defining a compression space for a refrigerant, a piston reciprocated in an axis direction within the cylinder, and a linear motor providing power to the piston. The linear motor includes an inner stator disposed outside the cylinder, the inner stator including a center core and a side core disposed on at least one side of the center core, an outer stator disposed to be spaced outward from the inner stator in a radius direction, a permanent magnet movably disposed in an air gap defined between the inner stator and the outer stator, and a deformation prevention device for preventing the inner stator from being deformed.

Abstract: Provided is a linear compressor. The linear compressor includes a cylinder defining a compression space for a refrigerant, a piston reciprocated in an axis direction within the cylinder, and a linear motor providing power to the piston. The linear motor includes an inner stator disposed outside the cylinder, the inner stator including a center core and a side core disposed on at least one side of the center core, an outer stator disposed to be spaced outward from the inner stator in a radius direction, and a magnet movably disposed in an airgap defined between the inner stator and the outer stator. The side core includes a core body and a lead-out guide device coupled to the core body to expose or lead out a power line to the outside of the side core.