A frame-type bilateral reverse permanent magnet direct current linear motor is provided, including a support frame, an iron yoke assembly with a first iron yoke, a second iron yoke and a middle iron yoke, a permanent magnet group, a coil winding and a pole piece assembly. Two groups of intermediate transition permanent magnet assemblies are disposed between the first iron yoke and the middle iron yoke and between the second iron yoke and the middle iron yoke. The intermediate transition permanent magnet assemblies includes transition permanent magnets and corresponding transition connection iron yokes; and magnetic pole orientations of the transition permanent magnets of the two groups of intermediate transition permanent magnet assemblies are reverse. The linear motor realizes efficient direct-current linear control, and has a high speed, a precise controllability, a high thrust density and small thrust fluctuation, and easiness in assembling.

The present application provides a vibration motor, including a casing with an accommodating space, a vibrator assembly, a stator assembly, and elastic members accommodated in the accommodating space. The stator assembly is fixed to the casing, and the vibrator assembly is movably connected to the casing through elastic members. The vibrator assembly includes a support assembly having two ends fixedly connected to corresponding elastic members, and the stator assembly is fixed to the casing. The support assembly includes a skeleton and an adhesive layer at least partially covered on an outer side of the skeleton. The vibrator assembly further includes a coil nested outside the adhesive layer, and the stator assembly is configured to provide a driving force for the vibrator assembly to move along a vibration direction.

The present application provides a vibration motor, including a casing with an accommodating space, a vibrator assembly, a stator assembly, and elastic members accommodated in the accommodating space. The stator assembly is fixed to the casing, and the vibrator assembly is movably connected to the casing through elastic members. The vibrator assembly includes a support assembly having two ends fixedly connected to corresponding elastic members, and the stator assembly is fixed to the casing. The support assembly includes a skeleton and an adhesive layer at least partially covered on an outer side of the skeleton. The vibrator assembly further includes a coil nested outside the adhesive layer, and the stator assembly is configured to provide a driving force for the vibrator assembly to move along a vibration direction.

The present application provides a vibration exciter, including a casing with an accommodating cavity, a stator assembly assembled in the casing, and a vibrator assembly assembled in the accommodating cavity and driven by the stator assembly to vibrate. The stator assembly includes a polar core fixed on an inner side of the casing and a magnetic steel fixed on one side of the polar core away from the casing. The vibrator assembly includes a skeleton elastically connected to the casing, a mass block fixed to the skeleton, and a coil wound around the outer side of the skeleton. The skeleton is integrally formed and has a solid structure. In the present application, since the skeleton is a solid structure formed integrally, the skeleton is not easy to be deformed when the coils are wound, and the shape of the coils can be controlled, thus having a better shape.

The present application provides a vibration exciter, including a casing with an accommodating cavity, a stator assembly assembled in the casing, and a vibrator assembly assembled in the accommodating cavity and driven by the stator assembly to vibrate. The stator assembly includes a polar core fixed on an inner side of the casing and a magnetic steel fixed on one side of the polar core away from the casing. The vibrator assembly includes a skeleton elastically connected to the casing, a mass block fixed to the skeleton, and a coil wound around the outer side of the skeleton. The skeleton is integrally formed and has a solid structure. In the present application, since the skeleton is a solid structure formed integrally, the skeleton is not easy to be deformed when the coils are wound, and the shape of the coils can be controlled, thus having a better shape.

An actuator device manufacturing method includes: a preparation step of preparing an actuator device including a support portion, a movable portion, a connection portion, and a metal member disposed such that a stress acts on the metal member when the movable portion oscillates; an oscillation step of oscillating the movable portion for a predetermined time; an acquisition step of acquiring a parameter related to a viscous resistance in a vibration of the movable portion; and a determination step of determining that the actuator device is qualified, when a difference between the parameter acquired in the acquisition step and a reference value corresponding to the parameter at a start of the oscillation step is a predetermined value or more in a direction in which the viscous resistance decreases, and determining that the actuator device is disqualified, when the difference is less than the predetermined value.

An actuator device manufacturing method includes: a preparation step of preparing an actuator device including a support portion, a movable portion, a connection portion, and a metal member disposed such that a stress acts on the metal member when the movable portion oscillates; an oscillation step of oscillating the movable portion for a predetermined time; an acquisition step of acquiring a parameter related to a viscous resistance in a vibration of the movable portion; and a determination step of determining that the actuator device is qualified, when a difference between the parameter acquired in the acquisition step and a reference value corresponding to the parameter at a start of the oscillation step is a predetermined value or more in a direction in which the viscous resistance decreases, and determining that the actuator device is disqualified, when the difference is less than the predetermined value.

An energy harvesting generator that produces power to electrical loads, by a novel method of magnetomotive stored potential energy release of magnetic flux into a coil winding by a mechanically applied external force that separates two magnetic flux sources, which initially are proximity distance separated by a thin blind hole wall disposed on a coil bobbin wound with magnet coil wire. The static magnetic flux charge state is discharged into the coil by the action of the external mechanical applied force periodically and is recharged whenever the mechanical triggering is completed, and the two separate magnets are brought into proximity. This novel methodology is magnetically equivalent to an electrical storage capacitor that stores a plurality of electrostatic flux to be charged and discharged periodically on demand.

An energy harvesting generator that produces power to electrical loads, by a novel method of magnetomotive stored potential energy release of magnetic flux into a coil winding by a mechanically applied external force that separates two magnetic flux sources, which initially are proximity distance separated by a thin blind hole wall disposed on a coil bobbin wound with magnet coil wire. The static magnetic flux charge state is discharged into the coil by the action of the external mechanical applied force periodically and is recharged whenever the mechanical triggering is completed, and the two separate magnets are brought into proximity. This novel methodology is magnetically equivalent to an electrical storage capacitor that stores a plurality of electrostatic flux to be charged and discharged periodically on demand.

An artillery configured to propel a projectile, the artillery comprising a firing mechanism, a barrel, and a helical electromagnetic recoil mechanism. The firing mechanism fires the projectile in a first direction toward a target. The barrel has an open-ended bore that guides the projectile in the first direction. The helical electromagnetic counter recoil mechanism includes an electrical energy source, a stator, and a helical electromagnetic armature. The electrical energy source provides electrical energy when the firing mechanism fires the projectile. The stator and armature generate an electromagnetic force via the electrical energy. The helical electromagnetic armature moves in a second direction opposite the first direction via the electromagnetic force when the firing mechanism fires the projectile in the first direction to minimize recoil of the artillery.