A vibration generating device that can make a relatively heavy vibration member produce sufficient vibration. A vibration generating device has: a vibration member; multiple actuators that are connected to the vibration member; and a stationary element that supports the vibration member via the multiple actuators. Each of the multiple actuators comprises: a supporting body to which the vibration member is fixed; a movable element; a first elastic member that is connected to the supporting body and the movable element; and a magnetic drive circuit (a first magnetic drive circuit and a second magnetic drive circuit) that makes the movable element move linearly back and forth relative to the supporting body. The multiple actuators are supported by the stationary element via a second elastic member. The first elastic member and the second elastic member comprise a gelatinous silicone gel or the like.

A linear actuator includes a movable element, a stationary element provided with a case in which the movable element is housed, and a magnetic drive mechanism that drives the movable element in a direction of an axis line. In the case, there is provided a sounding hole in a bottom plate part, at the other side in the direction of the axis line; the sounding hole being for discharging a pressure change in accordance with a vibration of the movable element in the direction of the axis line, as an audible level sound. Therefore, at a time when the movable element is vibrated in the direction of the axis line by the magnetic drive mechanism, the vibration is transferred to a user. Accordingly, information can be transferred by way of the vibration. Moreover, the information can also be transferred by way of the sound.

In the voice coil motor and the interference spectrophotometer according to the invention, the angular deviation between the movable and fixed mirrors can always be suppressed to one second or less. The voice coil motor is provided with: a static unit 71 including a yoke 73 having a cylindrical part 73a fixed to the static unit 71 and a magnet 74 disposed in the cylindrical part 73a fixed to the static unit 71; a movable unit 72 including a circular coil 72b fixed thereto, the circular coil 72b disposed between the cylindrical part 73a of the yoke 73 and the magnet 74; and a power supply line 72c for connecting the coil 72b to a power supply. The cylindrical part 73a of the yoke 73 has a slit 73c through which the power supply line 72c is to pass is created, the movable unit 72 is configured to reciprocally move relative to the static unit 71 in response to an electromagnetic force generated by the magnet 74 in conjunction with the activated coil 72b, and another slit 73d is created in the cylindrical part 73a of the yoke 73 in such a manner that the slits 73c,73d are symmetrical with respect to a central axis of the cylindrical part 73a.

A linear motor actuator includes a plurality of stators mounted stationary relative to one another along a common actuation axis. A translator rod is mounted to the stators for linear motion relative to the stators along the actuation axis, wherein each stator is magnetically coupled to the translator rod to drive motion of the translator rod along the actuation axis.

A linear motor actuator includes a plurality of stators mounted stationary relative to one another along a common actuation axis. A translator rod is mounted to the stators for linear motion relative to the stators along the actuation axis, wherein each stator is magnetically coupled to the translator rod to drive motion of the translator rod along the actuation axis.

A power generator 1 includes a magnetostrictive rod 2 through which lines of magnetic force pass in an axial direction thereof, a beam member 73 having a function of generating stress in the magnetostrictive rod 2, and a coil 3 arranged so that the lines of magnetic force pass inside the coil 3 in an axial direction of the coil 3. The beam member 73 is arranged along the magnetostrictive rod 2 and configured to allow one end portion and the other end portion of the magnetostrictive rod 2 to approach to each other to generate compressive stress in the magnetostrictive rod 2. Further, in the power generator 1, it is preferable that a gap between the beam member 73 and the magnetostrictive rod 2 on the side of the one end portion of the magnetostrictive rod 2 is larger than a gap between the beam member 73 and the magnetostrictive rod 2 on the side of the other one end portion of the magnetostrictive rod 2 in a side view.

A power generator 1 includes a magnetostrictive rod 2 through which lines of magnetic force pass in an axial direction thereof, a beam member 73 having a function of generating stress in the magnetostrictive rod 2, and a coil 3 arranged so that the lines of magnetic force pass inside the coil 3 in an axial direction of the coil 3. The beam member 73 is arranged along the magnetostrictive rod 2 and configured to allow one end portion and the other end portion of the magnetostrictive rod 2 to approach to each other to generate compressive stress in the magnetostrictive rod 2. Further, in the power generator 1, it is preferable that a gap between the beam member 73 and the magnetostrictive rod 2 on the side of the one end portion of the magnetostrictive rod 2 is larger than a gap between the beam member 73 and the magnetostrictive rod 2 on the side of the other one end portion of the magnetostrictive rod 2 in a side view.

A linear vibrating motor is provided in the present disclosure. The linear vibrating motor includes a housing, a vibrator, a stator and an elastic part. The vibrator and the stator are received in the housing, the elastic part suspends the vibrator. The stator includes a coil and a coil support supporting the coil. The coil support includes a supporting plate, a pair of supporting arms and a pair of supporting legs. The supporting plate supports the coil, the pair of supporting arms extends from ends of the supporting plate respectively, and the pair of supporting legs extends from ends of the supporting arms respectively and is opposite to the supporting plate. The vibrator comprises a groove to receive the supporting plate, and the vibrator is partially positioned between the pair of supporting arms.

A linear vibrating motor is provided in the present disclosure. The linear vibrating motor includes a housing, a vibrator, a stator and an elastic part. The vibrator and the stator are received in the housing, the elastic part suspends the vibrator. The stator includes a coil and a coil support supporting the coil. The coil support includes a supporting plate, a pair of supporting arms and a pair of supporting legs. The supporting plate supports the coil, the pair of supporting arms extends from ends of the supporting plate respectively, and the pair of supporting legs extends from ends of the supporting arms respectively and is opposite to the supporting plate. The vibrator comprises a groove to receive the supporting plate, and the vibrator is partially positioned between the pair of supporting arms.

A motor comprises an enclosure, a stator and a rotor, the stator comprising a first electromagnetic group and a second electromagnetic group between which the rotor is inserted, the rotor comprising a rotating shaft and a magnetic part installed around the outer wall of the rotating shaft, the motor further comprising an elastic element with a first contact part fixed on rear cover of the enclosure and a second contact part connected with the rotating shaft, wherein the elastic element is elastically deformable in at least two different directions. The motor is applicable to electric toothbrushes, shavers, loudspeakers, electric hammers, stirrers, refrigerators, sewing machines, packaging and bundling machines, electromagnetic pumps, etc. A rotating shaft of the electric toothbrush using the motor has the effects of high-frequency shimming and high-frequency knocking vibration, and the dental calculi on the dental surface are crushed via high-frequency knock, with higher cleaning effect.