40results about "Movable winding electromagnets" patented technology

An optical system is provided. The optical system includes a holder and a first compensation assembly. The holder is connected to an optical module. The first compensation assembly compensates a light. The first compensation assembly includes a first optical element. The light enters the optical module through the first compensation assembly.

An emergency release device comprises: a release assembly configured to receive molten salt from a ship equipped with a reactor vessel in which the molten salt flows; and a valve assembly configured to, in an abnormal state where a temperature of the reactor vessel is not within a predetermined range, allow the molten salt to flow from the reactor vessel into the release assembly and to be connected to the release assembly while the molten salt flows from the reactor vessel into the release assembly.

A micromechanical oscillation system. The micromechanical oscillation system has a micromechanical oscillating body having at least one micromirror. In addition, the micromechanical oscillation system includes an electromagnetic drive unit which has a coil body and at least one magnet. The coil body essentially extends laterally to the micromirror. The at least one magnet extends underneath the coil body.

The present invention provides a permanent magnet assembly (300) for use in a non-commutated linear actuator (100), the permanent magnet assembly (300) including a magnetic core structure (350) and a permanent magnet (400) having a first magnetic pole and a second magnetic pole, the magnetic core structure (350) including a central core portion (360) connected to the first magnetic pole of the permanent magnet (400), an outer hollow portion (370) connected to the second magnetic pole of the permanent magnet (400), and a gap region (380) located between the central core portion (360) and the outer hollow portion (370), the magnetic core structure (350) being arranged such that magnetic flux generated by the permanent magnet (400) flows between the central core portion (360) and the outer hollow portion (370) through the gap region (380), and the magnetic core structure (350) includes one or more protrusions (361, 371) extending into the gap region.

The invention relates to a rotary actuator (1) having: a stator (10); -at least one stator coil (11) which is connected to the stator (10) such that a force acting on the stator coil (11) is transmitted to the stator (10); -an armature (20) which is rotatable relative to the stator (10) about an axis of rotation (2); -at least one armature coil (21) which is connected to the armature (20) such that a force acting on the armature coil (21) is transmitted to the armature (20); -a current line (3) which can be used to energize the at least one stator coil (11); -a cable (4) that can be used to energize the at least one armature coil (21); -a rotation angle limiting device (5) by means of which the rotation of the armature relative to the stator is limited to a rotation angle range of 0 to 359 degrees.

A linear electric actuator characterized by a current-carrying flat winding (5) mounted in a flat winding holder (6) by two brackets (6.1) for linear movement and embedded in an outer frame (2) made of soft iron. This frame also serves as the housing.

This application relates to the field of bendable circuit board technologies, and provides a magnetic attraction component and an assembly method thereof, a linear motor, a camera, and an electronic device, to resolve problems in a related technology that reliability of a connection between two magnets that repulse each other in the magnetic attraction component is low and assembly efficiency of the magnetic attraction component is low. The magnetic attraction component includes a magnet unit. The magnet unit includes a plurality of magnets. Two adjacent magnets, in the plurality of magnets, that repulse each other are welded. This application may be applied to an electronic device such as a mobile phone.

The invention relates to a rotary actuator (1), comprising: - a stator (10), - at least one stator coil (11) which is connected to the stator (10) in such a way that a force acting on the stator coil (11) is transmitted to the stator (10); - an armature (20) which is rotatable about an axis of rotation (2) relative to the stator (10), - at least one armature coil (21) which is connected to the armature (20) in such a way that a force acting on the armature coil (21) is transmitted to the armature (20); - power lines (3) which can be used to energize the at least one stator coil (11), - cables (4) which can be used to energize the at least one armature coil (21), - a rotational angle limiting device (5) which is used to limit a rotation of the armature relative to the stator to a rotational angle range of from 0 to 359 degrees.

An electromagnetic shaker apparatus includes a body, and a magnetic device housed within the body and configured to provide a static magnetic field. The apparatus further includes an armature, and a solenoid coil mounted on the armature and configured to receive current from a power supply. Interaction between the static magnetic field and the solenoid coil can generate a Lorentz force that causes movement of the armature relative to the body. The apparatus can withstand high temperatures and / or pressures and / or chemical conditions, and can be used in a fretting wear system in testing environments.

This disclosure relates to a permanent magnet assembly and non-commutated linear actuator. There is provided a permanent magnet assembly for a non-commutated linear actuator, the permanent magnet assembly comprising: a magnetic core structure, and a permanent magnet having a first pole and a second pole, wherein the magnetic core structure comprises a central core portion connected to the first pole of the permanent magnet, an outer hollow portion connected to the second pole of the permanent magnet, and a gap region positioned between the central core portion and the outer hollow portion, wherein the magnetic core structure is configured such that magnetic flux generated by the permanent magnet flows between the central core portion and the outer hollow portion via the gap region, and wherein the magnetic core structure comprises one or more protrusions extending into the gap region.

The present invention relates to a human body stimulation system that uses acoustic pressure to provide vibration and photoacoustic sound to provide bone conduction sound. More specifically, the present invention relates to a human body stimulation system that uses acoustic pressure to provide vibration and photoacoustic sound to provide bone conduction sound, the system includes a vibration device configured to provide vibration to a human body using acoustic pressure and a transducer that provides bone conduction sound using photoacoustic sound, and thus can provide vibration (tactile sensation) and bone conduction sound (auditory sensation) to a human body (particularly the brain). According to the present invention, bone conduction sound can be provided simultaneously with human body stimulation to vibration.

Actuators for rotating an optical-path-folding-element with two, first and second, degrees of freedom in an extended rotation range around two respective rotation axes, folded cameras including such actuators and dual-cameras including a folded camera as above together with an upright camera.

The invention discloses a modular efficiently-assembled electromagnetic braking system which comprises a magnet yoke body, a rotor connecting assembly and a cover plate, an integrated electromagnetic coil is installed in the magnet yoke body, the integrated electromagnetic coil is provided with an integrated plug-in device extending out of the magnet yoke body, and a friction plate moving up and down is arranged between the magnet yoke body and the rotor connecting assembly. The magnet yoke body is provided with a plurality of springs matched with the friction plates, the rotor connecting assembly is provided with a brake seat plate matched with the friction plates, the rotor connecting assembly is sleeved with the cover plate in a limiting mode and connected with the magnet yoke body, and the integrated plug-in device is vertically provided with two terminal containing cavities side by side. And the end part of the enameled wire passes through the wire passing clamping groove and is electrically connected with the inner connecting terminal inserted into the terminal accommodating cavity. The electromagnetic coil, the friction plate, the rotor braking part, the power matching suite and the cover plate are integrated to form a modular unit, the purpose of modular and standardized assembly of the electromagnetic braking system is achieved, and the assembly quality and efficiency are improved.

An optical driving mechanism is provided. The optical driving mechanism includes a first movable part, a fixed part, and a first driving assembly. The first movable part is connected with an optical element. The first movable part is movable relative to the fixed part. The first driving assembly drives the first movable part to move relative to the fixed part. The fixing part has an opening.

In a linear motor for a hydraulic device, a permanent magnet includes, in a longitudinal direction, first and second magnets on proximal and distal sides of the hydraulic device. A first coil and a second coil are formed by winding coil wires in opposite directions. An LVDT case member in which solenoid coils constituting an LVDT in a region in front of an end of the first magnet closer to the hydraulic device are built is projected at an end of an inner yoke on the hydraulic device side. A core of the LVDT linearly moveable together with the bobbin inside the solenoid coils is coupled to a protrusion extending in a substantially cone shape from an edge of a cylindrical body of the bobbin. A magnetic ring of a soft magnetic material is disposed in contact with the end of the first magnet closer to the hydraulic device.

In a linear motor that drives a drive unit of a hydraulic device so as to cause the drive unit to reciprocate, a permanent magnet is divided into two in a longitudinal direction and includes a first magnet on a proximal side of the hydraulic device and a second magnet on a distal side of the hydraulic device, a first coil and a second coil that are formed by winding coil wires in opposite directions are provided, an LVDT case member in which solenoid coils constituting an LVDT in a region in front of an end of the first magnet closer to the hydraulic device are built is projected at an end of an inner yoke on the hydraulic device side, a core of the LVDT that linearly moves together with the bobbin inside the solenoid coils is coupled to a protrusion extending in a substantially cone shape from an edge of a cylindrical body of the bobbin, and a magnetic ring made of a soft magnetic material and disposed in contact with the end of the first magnet closer to the hydraulic device is further provided.

The invention relates to an actuator assembly for a textile machine, wherein: the actuator assembly comprises a plurality, i.e. n, spools distributed along a depth; the actuator assembly comprises a plurality, i.e. n+1, magnetic plates distributed along the depth; the magnetic plates and the spools alternate along the depth, so that each spool is received between two adjacent magnetic plates; each magnetic plate comprises an upper permanent magnet and a lower permanent magnet having opposite orientations; the upper permanent magnets of all magnetic plates have the same orientation; the lower permanent magnets of all magnetic plates have the same orientation; each spool is movable along a height between an upper position and a lower position, and vice versa, wherein the upper position is comprised between the upper permanent magnets of two adjacent magnetic plates and the lower position is comprised between the lower permanent magnets of two adjacent magnetic plates; and each spool can be powered in two opposite ways. The invention also relates to a textile machine comprising such an actuator assembly.

The solenoid includes a stator having first stator teeth and second stator teeth, and an armature having first armature teeth and second armature teeth. The armature is movable relative to the stator within a predetermined stroke. A coil is associated with one of the stator and the armature for conducting current and generating magnetic flux guided by the stator and the armature. The stator or the armature acts as the ferromagnetic core of the coil. A first air gap of a first length is formed between the first stator teeth and the first armature teeth, and a second air gap of a second length is formed between the second stator teeth and the second armature teeth. The first and second lengths are constant within a predetermined margin within a predetermined formation when the first and second armature teeth overlap with the first and second stator teeth, respectively.

A system provides a work surface, a configuration space unit, and a magnetic movement system. The work surface has a configuration space associated therewith. In this regard, the configuration space unit is positionable within the associated configuration space of the work surface. The magnetic movement system has unit cells arranged in cooperation with the work surface, where each unit cell comprises an actuator, a magnet coupled to the actuator such that the actuator causes movement of the magnet defining an actuated magnet, and an electromagnetic coil. Moreover, the magnetic movement system is configured such that a magnetic field produced by at least one unit cell performs at least one operation that affects a position of the configuration space unit within the configuration space of the work surface.

The present invention relates to an electromagnetic actuator for positioning movements along a curved movement path, in particular a circular path. In order to be able to be used more in a more versatile way than known solutions, the actuator according to the invention comprises: a. at least one magnet module (2a, 2b) which has a magnetic gap; b. at least one coil module (3a, 3b) which has a solenoid coil; c. a magnet carrier (4) which has a plurality of magnet module couplings (4a, 4b) for being coupled to each magnet module (2a, 2b); and d. a coil carrier (5) which is movable, in particular rotatable, relative to the magnet carrier (4) and has a plurality of coil module couplings (5a, 5b) for being coupled to each coil module (3a, 3b). The modules (2a, 2b; 3a, 3b) can be coupled to the module couplings (4a, 4b) in such a way that the solenoid coil of a coil module (3a, 3b) coupled to a coil module coupling (5a, 5b) is arranged in the magnetic gap of a magnet module (2a, 2b) coupled to an associated magnet module coupling (4a, 4b), so that when an electric current is applied to this solenoid coil, the coil carrier (5) moves along the movement path (B) relative to the magnet carrier (4) due to a magnetic force acting between the magnet module (2a, 2b) and the coil module (3a, 3b).

An optical module includes a mirror unit, a magnet unit, and a package including a recess. The magnet unit includes a first magnet and a second magnet. The recess includes a base wall portion to which an upper surface of the magnet unit is fixed, and a side wall portion facing a side surface of the magnet unit. The mirror unit is disposed on a second surface on an opposite side of the base wall portion from a first surface to which the magnet unit is fixed. A second upper surface of the second magnet is located closer to the lower side than a first upper surface of the first magnet. The magnet unit is fixed to the base wall portion by an adhesive material disposed at least between the first surface of the base wall portion and the second upper surface of the second magnet.

The invention relates to a rotary actuator (1) comprising: - a stator (10), - at least one stator coil (11) connected to the stator (10) in such a way that a force acting on the stator coil (11) is transferred to the stator (10), wherein the stator (10) is divided into at least two stator partial shells (10', 10") each with a stator coil (11', 11"); - an armature (20) rotatable about an axis of rotation (2) relative to the stator (10), wherein the armature (20) is divided into at least two armature sub-shells (20', 20") each with an armature coil (21', 21"), - at least one armature coil (21) which is connected to the armature (20) in such a way that a force acting on the armature coil (21) is transferred to the armature (20); - Power lines (3) through which at least one stator coil (11) can be energized, - Cable (4) through which at least one armature coil (21) can be energized.

The invention relates to a rotary actuator (1) comprising: - a stator (10); - at least one stator coil (11) which is connected to the stator (10) such that a force acting on the stator coil (11) is transmitted to the stator (10), wherein the stator (10) is divided into at least two stator partial shells (10', 10'') each having a stator coil (11', 11''); - an armature (20) which is rotatable relative to the stator (10) about an axis of rotation (2), wherein the armature (20) is divided into at least two armature partial shells (20', 20'') each having an armature coil (21', 21''); - at least one armature coil (21) which is connected to the armature (20) such that a force acting on the armature coil (21) is transmitted to the armature (20); - power lines (3) which can be used to energize at least one stator coil (11); and - cables (4) which can be used to energize the at least one armature coil (21).

To provide an optical module that can improve reliability.SOLUTION: An optical module 1 comprises: a mirror unit 2; a magnet part 3; and a package 4 that has a recess 40. The magnet part 3 includes a first magnet 31 and a second magnet 32. The recess 40 has: a base wall part 41 that is fixed with a top face 3a of the magnet part 3; and a side wall part 42 that faces a side face 3s of the magnet part 3. The recess 40 has an opening 40a that is defined by the side wall part 42 and opens downward. The mirror unit 2 is arranged on a second surface 41b on the opposite side of a first surface 41a to which the magnet part 3 is fixed in the base wall part 41. A second top face 32a of the second magnet 32 is located lower than a first top face 31a of the first magnet 31. The magnet part 3 is fixed to the base wall part 41 by an adhesive 53 arranged at least between the first surface 41a of the base wall part 41 and the second top face 32a of the second magnet 32.SELECTED DRAWING: Figure 3

The invention relates to an electromagnetic actuator for a positioning movement along a curved movement path, in particular a circular path. In order to be able to use the actuator in a more general way than known solutions, the actuator according to the invention comprises: a. At least one magnet module (2a, 2b) having a magnetic gap; b. At least one coil module (3a, 3b) having a solenoid coil; c. A magnet carrier (4) having a plurality of magnet module couplings (4a, 4b) for coupling to each magnet module (2a, 2b); and d. A coil carrier (5) movable, in particular rotatable, relative to the magnet carrier (4) and having a plurality of coil module couplings (5a, 5b) for coupling to each coil module (3a, 3b). The modules (2a, 2b; the coil modules (3a, 3b) can be coupled to the module couplings (4a, 4b) such that the solenoid coils of the coil modules (3a, 3b) coupled to the coil module couplings (5a, 5b) are arranged in the magnetic gap of the magnet modules (2a, 2b) coupled to the associated magnet module couplings (4a, 4b) such that when an electrical current is applied to the solenoid coils, the coil modules (3a, 3b) are coupled to the coil module couplings (5a, 5b). The coil carrier (5) is moved relative to the magnet carrier (4) along a movement path (B) due to a magnetic force acting between the magnet modules (2a, 2b) and the coil modules (3a, 3b).

The invention relates to an adjustment device comprising: a base component (B1), an adjustment body (10), at least one flexure bearing (21) by means of which the adjustment body (10) is mounted on the base component (B1) so as to be rotatable about an axis of rotation (D1) of the flexure bearing, and at least one drive device (C) which is coupled to the base component (B1) and to an adjustment body connection device (AV), in order to move these relative to one another. The drive device (C) has an actuator (60) comprising an electrical coil (71), the coil axis (AS) of which extends along the axis of rotation (D1) of the flexure bearing, and a compensation component (80) made of a magnetisable or magnetised material, as well as at least one permanent magnet segment (MS), which is located adjacent to the actuator (60) and is movable relative thereto, and of which the magnetic field lines extend along the coil axis (AS) in the interior of the permanent magnet segment (MS). The invention also relates to an adjustment system and to a computer program product.

The present invention relates to a human body stimulation system providing vibrations using acoustic pressure and bone conduction sound using photoacoustic sound. More specifically, the present invention relates to a human body stimulation system providing vibrations using acoustic pressure and bone conduction sound using photoacoustic sound, wherein the system comprises: a vibration device configured to provide vibrations using acoustic pressure to the human body; and a transducer providing bone conduction sound using photoacoustic sound, and thus can provide vibrations (tactile sensations) and bone conduction sound (auditory sensations) to the human body (especially the brain). According to the present invention, bone conduction sound can be provided at the same time as human body stimulation for vibrations.

A method of assembling a loudspeaker including providing a precursor loudspeaker. The precursor loudspeaker includes a chassis and a voice coil former. The chassis includes a first electrical terminal and a second electrical terminal. A voice coil is mounted on the voice coil former. A first end of a flexible wire is attached to the voice coil former and electrically connected to a first end of the voice coil, and a second end of the flexible wire is attached to the voice coil former and electrically connected to a second end of the voice coil such that the flexible wire forms the loop of wire which extends outwardly from the voice coil former. The method further includes attaching the loop of wire to the first electrical terminal at a first location on the loop of wire and attaching the loop of wire to the second electrical terminal at a second location on the loop of wire.

An object of the present invention is to provide a magnetic circuit for an acoustic transducer, the magnetic circuit enabling peeling of the surface of a member formed by compression-molding a soft magnetic composite material to be suppressed. The present invention is a magnetic circuit for an acoustic transducer, the magnetic circuit including: a yoke 151; a magnet 152; and a top plate 153, wherein the yoke 151 includes a bottom surface portion 151a and a pole piece 151b provided perpendicular to the bottom surface portion 151a, the magnet 152 and the top plate 153 are provided in that order on the bottom surface portion 151a, a magnetic gap 141 in which a voice coil 14 is disposed is formed between the pole piece 151b and the top plate 153, at least one of the pole piece 151b and the top plate 153 includes: a composite material part 154 in a position facing the magnetic gap 141; and a protective layer 155 covering at least a surface of the composite material part 154, the composite material part 154 is formed from a soft magnetic composite material, and the material of the protective layer 155 differs from the soft magnetic composite material.

This emergency release device comprises: a discharge assembly provided so as to allow molten salt to flow thereinto from a ship having a reactor tank in which molten salt flows; and a valve assembly inducing the molten salt to flow from the reactor tank into the discharge assembly when in a state of emergency in which the temperature of the reactor tank cannot be controlled, the valve assembly being connected to the discharge assembly while the molten salt flows into the discharge assembly.