An electric motor device includes a rotor, a stator, and electrical means for driving rotation of the rotor relative to the stator, the device being characterized in that the stator includes a substantially spherical cavity receiving the rotor, which is itself substantially spherical, and in that the electrical means are arranged to drive the rotor in rotation about at least two axes.

An electric motor device includes a rotor, a stator, and electrical means for driving rotation of the rotor relative to the stator, the device being characterized in that the stator includes a substantially spherical cavity receiving the rotor, which is itself substantially spherical, and in that the electrical means are arranged to drive the rotor in rotation about at least two axes.

An object is to provide a linear motor in which even when the overall length of the linear motor is long, the amount of magnets to be employed does not increase and hence size reduction and weight reduction of a stator is realized. A linear motor comprising a stator 2 and a movable element 1 provided with a coil 1a is characterized in that: the stator 2 includes two plate-shaped parts elongated in a moving direction of the movable element 1 and the two plate-shaped parts are provided facing each other so as to be magnetically linked in such a manner that a movement domain of the movable element 1 is located in between; in each of surfaces facing each other in the two plate-shaped parts, a plurality of tooth parts 21a and 22a are aligned in the moving direction such that the tooth parts 21a (22a) of one plate-shaped part and the tooth parts 22a (21a) of the other plate-shaped part are located in a staggered manner; in the movable element 1, inside the coil 1a, two magnets 1c, 1d and three yokes 1b are alternately arranged along the moving direction; and the two magnets 1c and 1d are magnetized along the moving direction and the magnetization directions are opposite to each other.

An object is to provide a linear motor in which even when the overall length of the linear motor is long, the amount of magnets to be employed does not increase and hence size reduction and weight reduction of a stator is realized. A linear motor comprising a stator 2 and a movable element 1 provided with a coil 1a is characterized in that: the stator 2 includes two plate-shaped parts elongated in a moving direction of the movable element 1 and the two plate-shaped parts are provided facing each other so as to be magnetically linked in such a manner that a movement domain of the movable element 1 is located in between; in each of surfaces facing each other in the two plate-shaped parts, a plurality of tooth parts 21a and 22a are aligned in the moving direction such that the tooth parts 21a (22a) of one plate-shaped part and the tooth parts 22a (21a) of the other plate-shaped part are located in a staggered manner; in the movable element 1, inside the coil 1a, two magnets 1c, 1d and three yokes 1b are alternately arranged along the moving direction; and the two magnets 1c and 1d are magnetized along the moving direction and the magnetization directions are opposite to each other.

A transverse flux reciprocating motor and a reciprocating compressor including a transverse flux reciprocating motor are provided. The transverse flux reciprocating motor may include a stator having an inner stator and an outer stator located outside and spaced apart from the inner stator in a radial direction, at least one magnet coil wound on the stator, at least one magnet coupled to an outer circumferential surface of the inner stator or an inner circumferential surface of the outer stator and having different magnetic poles arranged in an orthogonal direction of flux generated by the magnet coil, and a mover inserted into a cavity formed between the inner stator and the outer stator, formed of a magnetic material and reciprocating with respect to the stator. A magnetic resonant spring for causing resonant motion of the mover with respect to the stator using a force moving to low magnetic resistance between the stator and the mover is implemented, thereby reducing a size and weight of the reciprocating motor and the reciprocating compressor including the reciprocating motor and obtaining higher efficiency.

A transverse flux reciprocating motor and a reciprocating compressor including a transverse flux reciprocating motor are provided. The transverse flux reciprocating motor may include a stator having an inner stator and an outer stator located outside and spaced apart from the inner stator in a radial direction, at least one magnet coil wound on the stator, at least one magnet coupled to an outer circumferential surface of the inner stator or an inner circumferential surface of the outer stator and having different magnetic poles arranged in an orthogonal direction of flux generated by the magnet coil, and a mover inserted into a cavity formed between the inner stator and the outer stator, formed of a magnetic material and reciprocating with respect to the stator. A magnetic resonant spring for causing resonant motion of the mover with respect to the stator using a force moving to low magnetic resistance between the stator and the mover is implemented, thereby reducing a size and weight of the reciprocating motor and the reciprocating compressor including the reciprocating motor and obtaining higher efficiency.

The present invention relates to electric appliances for personal care, in particular electric shavers, comprising a magnetic linear drive unit having first and second drive components supported for linear displacement relative to each other and adapted to magnetically interact with each other, wherein a drive support is provided for supporting the drive unit onto a mounting structure. The drive support supporting the drive unit onto a mounting structure of the installation environment is adapted to provide for at least one axis of rotation for at least one of the drive components of the drive unit allowing said at least one drive component to rotate relative to the mounting structure.

The present invention relates to electric appliances for personal care, in particular electric shavers, comprising a magnetic linear drive unit having first and second drive components supported for linear displacement relative to each other and adapted to magnetically interact with each other, wherein a drive support is provided for supporting the drive unit onto a mounting structure. The drive support supporting the drive unit onto a mounting structure of the installation environment is adapted to provide for at least one axis of rotation for at least one of the drive components of the drive unit allowing said at least one drive component to rotate relative to the mounting structure.

A vibration motor includes a fixed member, a vibration unit, and an elastic member. The vibration unit includes a first weight, a second weight, and a magnet sandwiched by the first and second weights. The motor further includes a first positioning guiding member including a first weight guiding rail, a first base guiding rail, a first movement rail formed by the first weight guiding rail and the first base guiding rail, and a plurality of magnetic bodies disposed at two sides of the first movement rail; a second positioning guiding member including a second weight guiding rail, a second base guiding rail, a pair of second movement rails formed by the second weight guiding rail and the second base guiding rail, and a magnetic body disposed between the second movement rails.

A moving core type reciprocating motor is provided that may include a stator on which a coil may be wound and having an air gap; a magnet fixed to the stator; and a mover that includes a moving core disposed to face the magnet in the air gap and reciprocates with respect to the stator. The magnet may have a first pole and a second pole that are different poles arranged in a reciprocation direction of the mover, and a length of the first pole may be larger than a length of the second pole.