Provided are a moving core-type reciprocating motor and a reciprocating compressor having the same. The moving core-type reciprocating motor includes a stator including an inner stator and an outer stator having one side connected to one side of the inner stator and the other side spaced apart from the other side of the inner stator in a radius direction to define a gap together with the other side of the inner stator, a magnet coil wound between the inner stator and the outer stator, a magnet fixed to at least one of the inner stator and the outer stator so as to be exposed to the gap, a rotor including a moving core disposed in the gas and made of a magnetic material to reciprocate with respect to the stator and the magnet and a hollow connection member made of a nonmagnetic material and supporting the moving core so that the moving core is exposed to the gap toward the magnet. Thus, the reciprocating motor and the reciprocating compressor having the same are compact and lightweight to more improve efficiency.

Provided are a moving core-type reciprocating motor and a reciprocating compressor having the same. The moving core-type reciprocating motor includes a stator including an inner stator and an outer stator having one side connected to one side of the inner stator and the other side spaced apart from the other side of the inner stator in a radius direction to define a gap together with the other side of the inner stator, a magnet coil wound between the inner stator and the outer stator, a magnet fixed to at least one of the inner stator and the outer stator so as to be exposed to the gap, a rotor including a moving core disposed in the gas and made of a magnetic material to reciprocate with respect to the stator and the magnet and a hollow connection member made of a nonmagnetic material and supporting the moving core so that the moving core is exposed to the gap toward the magnet. Thus, the reciprocating motor and the reciprocating compressor having the same are compact and lightweight to more improve efficiency.

A movable core-type reciprocating motor and a compressor having a movable core-type reciprocating motor are provided. The motor may include a stator including an inner stator and an outer stator; a magnet coil wound between the inner stator and the outer stator; a magnet fixed to at least one of the inner stator or the outer stator so as to be at least partially positioned within a range of the air gap; and a mover including at least one movable core disposed in the air gap and made of a magnetic material to perform a reciprocation movement with respect to the stator and the magnet and a connection member made of a non-magnetic material and configured to support the at least one movable core.

A movable core-type reciprocating motor and a compressor having a movable core-type reciprocating motor are provided. The motor may include a stator including an inner stator and an outer stator; a magnet coil wound between the inner stator and the outer stator; a magnet fixed to at least one of the inner stator or the outer stator so as to be at least partially positioned within a range of the air gap; and a mover including at least one movable core disposed in the air gap and made of a magnetic material to perform a reciprocation movement with respect to the stator and the magnet and a connection member made of a non-magnetic material and configured to support the at least one movable core.

A gravity energy generator that provides a better and efficient way to use electricity as a source of power. The gravity energy generator includes a horizontal casing, a plurality of magnets and a plurality of wiring. A magnet is positioned on a midpoint of a centered shaft that is adapted to rotate along the centered shaft from an electromagnetic field from the first pair of magnets placed on the first end and the second end within the interior of the horizontal casing. Other embodiments of the gravity energy generator include a horizontal casing, a plurality of magnets, a battery and a pair of copper plates as well as a horizontal casing, a plurality of magnets and a pair of magnetic push and pull devices.

A double resonance vibration motor includes a housing, vibration parts in the housing, a coil fixed in the housing, and elastic connectors to support elastically the vibration part. The vibration parts include a mass block, a first magnet group and a second magnet group installed in the mass block. The coil is opposite to the first magnetic group and the second magnetic group. The driving force generated by the first magnetic group and the coil makes the vibration motor vibrate along the first direction. The driving force of the second magnet group and the coil makes the vibration motor vibrate along the second direction. The first direction and the second direction intersect. Two different directions have respectively one resonance frequency. Two different resonant frequencies can vibrate alone or at the same time, to realize the control in different vibration directions.

A double resonance vibration motor includes a housing, vibration parts in the housing, a coil fixed in the housing, and elastic connectors to support elastically the vibration part. The vibration parts include a mass block, a first magnet group and a second magnet group installed in the mass block. The coil is opposite to the first magnetic group and the second magnetic group. The driving force generated by the first magnetic group and the coil makes the vibration motor vibrate along the first direction. The driving force of the second magnet group and the coil makes the vibration motor vibrate along the second direction. The first direction and the second direction intersect. Two different directions have respectively one resonance frequency. Two different resonant frequencies can vibrate alone or at the same time, to realize the control in different vibration directions.

An armature includes: an integrated core with multiple split cores coupled to each other; a coupling member for coupling the multiple split cores; a coil attached to the integrated core; a block attachment part provide to a machine attachment side of the integrated core; a protection sheet having ability to be impregnated with resin and covering a surface of the integrated core and a surface of the block attachment part; a block attached to the block attachment part and having a machine attachment surface arranged at the block attachment side of the integrated core; and a resin layer covering the protection sheet covering the integrated core. The machine attachment surface of the block is exposed from the resin layer.

An armature for linear motor having excellent precision in attachment to a machine and capable of reducing the likelihood of trouble in a resin layer, entry of a foreign material, and the like is provided. An armature comprises: a block attachment part provided to a machine attachment side of a core; a protection sheet having ability to be impregnated with resin and covering a surface of the core and a surface of the block attachment part; a block attached to the block attachment part and having a machine attachment surface arranged at the block attachment side of the core; and a resin layer covering the protection sheet covering the core. The machine attachment surface of the block is exposed from the resin layer.

A driving apparatus (101) is provided with: a base part (110); a driven part (130) which is capable of rotating; an elastic part (120a, 120b) which connects the base part and the driven part and which has elasticity for allowing the driven part to rotate around a rotational axis which is an axis along one direction (Y axis); a coil part (140) which is disposed on the base part, wherein the driven part is disposed on an outside of a winding of the coil; and a magnetic field applying part (151, 152) which applies the magnet field to the coil part.