60results about "Movable winding electromagnets" patented technology

The present application relates to the technical field of bendable circuit boards and provides a magnetic assembly and assembly method thereof, a linear motor, a camera, and an electronic device, capable of resolving the problems of low connection reliability between two repelling magnets in magnetic assemblies and low assembly efficiency of magnetic assemblies in related technologies. The magnetic assembly includes a magnet unit, which includes multiple magnets, wherein two adjacent and repelling magnets are welded together. The present application can be used in electronic devices such as mobile phones.

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.

The electromagnetic actuator includes a housing (1), two ferromagnetic pole pieces (4, 5), and a movable structure (3). The two ferromagnetic pole pieces (4, 5) are arranged at a distance from each other and are rigidly connected to the housing. The movable structure (3) can be moved along an axis within the housing (1) between two end positions and includes at least one magnet system arranged between the pole pieces (4, 5). The movable structure (3) is connected to a shaft (2) that is axially displaceable within the housing (1). The magnet system includes at least one array of one or more permanent magnets (9, 10) polarized radially relative to the axis and an annular coil (8) that can be connected to a current source, and together with the pole pieces (4, 5), forms an air gap system with axially variable air gaps (L1, L2). The movable structure (3) can be fixed in each of the two extreme positions without energizing the coil (8) and can be moved from one of the occupied extreme positions to the opposite extreme position by energizing the coil (8).

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 disclosure provides an exciter and an electronic product. The exciter comprises: a magnetic circuit assembly comprising a first housing and a magnet, and the magnet is connected to the first housing; a coil assembly comprising a second housing and a coil, and the coil is disposed in a magnetic field formed by the magnet, wherein the coil assembly is configured to be capable of generating a vibration relative to the magnetic circuit assembly, the coil is formed by winding a wire having a polygonal cross section. According to the present disclosure, the coil wire has a polygonal cross section, so that an interval between the wires can be reduced in the wound coil, the number of turns of the coil is increased in the same space, the effective length of the coil is increased, and the driving force generated from the coil is increased.

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.

Provided are a lens drive module, an imaging module, an electronic device, and a lens unit that have a simple configuration and are advantageous in reducing power consumption. The lens drive module includes a lens unit that includes a plurality of lenses and a spacer that includes a ferromagnetic material provided between two adjacent lenses among the plurality of lenses, and a lens actuator that causes an electromagnetic force to act on the lens unit in response to energization.

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.

An active vibration isolation system includes a magnetic actuator. The magnetic actuator includes a coil carrier with at least one coil, which is engaged in the magnet carrier without contact, thereby forming the magnetic actuator in the form of a linear motor. The magnetic actuator includes a magnetic shield. The magnetic shield includes an opening through which the coil carrier extends into the magnet carrier.

The present embodiment relates to a lens driving device comprising: a housing; a bobbin disposed in the housing; a magnet and a dummy member, arranged at the housing; a first coil disposed on the bobbin; and a substrate comprising a second coil facing the magnet, wherein the housing comprises a first and a second side part facing each other and a third and a fourth side part facing each other, the magnet comprises a first magnet unit disposed at the first side part, a second magnet unit disposed at the third side part, and a third magnet unit disposed at the fourth side part, and the dummy member is disposed at the second side part.

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.

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 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.

To provide a small-size optical member driving device capable of changing the posture of optical components.SOLUTION: An optical member driving device 20 includes: an optical member 24 on which light is incident; and multiple actuators 26A-26D that shift different portions of an outer periphery of the optical member 24 in a traveling direction of light just before incidence. Each of the actuators 26A-26D includes: an arm 30 that rotates on the rotation center lines Ca-Cd extending in a direction perpendicular to the traveling direction and supports the optical member 24 at one end 30a; a conductor 36 that is provided on the other end 30b of the arm 30 and extends in a direction from the other end 30b to the one end 30a of the arm 30, and through which current flows; and magnet pairs 40 and 42 that are provided to sandwich the other end 30b of the and arm 30 with a gap and generate a magnetic field in a direction crossing an extending direction of the conductor 36.SELECTED DRAWING: Figure 2

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.

To provide a small-size optical member driving device capable of changing the posture of optical components.SOLUTION: An optical member driving device 20 includes: an optical member 24 on which light is incident; and multiple actuators 26A-26D that shift different portions of an outer periphery of the optical member 24 in a traveling direction of light just before incidence. Each of the actuators 26A-26D includes: an arm 30 that rotates on the rotation center lines Ca-Cd extending in a direction perpendicular to the traveling direction and supports the optical member 24 at one end 30a; a conductor 36 that is provided on the other end 30b of the arm 30 and extends in a direction from the other end 30b to the one end 30a of the arm 30, and through which current flows; and magnet pairs 40 and 42 that are provided to sandwich the other end 30b of the and arm 30 with a gap and generate a magnetic field in a direction crossing an extending direction of the conductor 36.SELECTED DRAWING: Figure 2

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.

Embodiments of this application provide a linear motion electromagnetic mechanism (100), a relay (1000), a power distribution box (2000), and a communication device. In a linear motion electromagnetic mechanism (100), a first bipolar charging permanent magnet (120) and a second bipolar charging permanent magnet (130) are respectively disposed on two opposite inner walls of a frame-shaped portion (110a) of a magnetic yoke (110), and a first parallel magnetic field (129) and a second parallel magnetic field (139) that are in opposite directions are formed between the first bipolar charging permanent magnet (120) and the second bipolar charging permanent magnet (130). Two semi-ring portions of a powered-on coil (142) are subject to co-directional ampere forces, and the coil (142) drives a movable rack (141) to perform translation motion. The coil (142) is bi-directionally powered on, so that the movable rack (141) moves bi-directionally, to implement switching work of the relay (1000). A first moving iron core (143) and a second moving iron core (144) are configured to form a holding force on the movable rack (141) when the movable rack (141) is at a switch-on position or a switch-off position, to limit a position of the movable rack (141). In the linear motion electromagnetic mechanism (100), one magnetic field cavity provides bipolar magnetic fields, and the powered-on coil (142) is subject to the ampere forces in the bipolar magnetic fields to drive the movable rack (141) to translate, so that a small quantity of parts are used, and an overall structural thickness is smaller.

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.