586results about "Electromagnets with armatures" patented technology

An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly and a first driving assembly. The movable assembly is movable relative to the fixed assembly. The first driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The optical element driving mechanism further includes a first opening, and an external light beam travels along a first axis to pass through the first opening.

An optical element driving mechanism is provided, including a fixed part, a movable part, and a driving assembly. The fixed part includes a base. The base corresponds to an optical module. The movable part is connected to an optical element. The movable part is movable relative to the fixed part. The driving assembly drives the movable part to move relative to the fixed part. The base includes an accommodation portion, and the accommodation portion has a recessed structure.

An arrangement (10, 82) for locking and unlocking a lock device (58, 74), the arrangement (10, 82) comprising a transfer element (12) movable between a protruded position (42) and a retracted position (56); a core member (14) of soft magnetic material, the core member (14) comprising a coil section (20); an electric coil (16) wound around the coil section (20); and a blocking member (48) comprising a magnet (18), the blocking member (48) being movable between a blocking position (50), in which the magnet (18) establishes a magnetic circuit through the coil section (20) and the blocking member (48) blocks movement of the transfer element (12) to the retracted position (56), and an unblocking position (54), in which the magnet (18) establishes a magnetic circuit through the coil section (20) and the blocking member (48) unblocks movement of the transfer element (12) to the retracted position (56). A lock device (58, 74) comprising an arrangement (10, 82), and a method of controlling a lock device (58, 74), are also provided.

Provided is a solenoid comprising a molded coil, an anchor, and an armature. In the anchor, an outer peripheral convex portion and an inner peripheral convex portion are formed. When no current is being applied, axial distance between the outer peripheral convex portion of the anchor and an outer peripheral portion of the armature which is radially closest to the outer peripheral convex portion is smaller than axial distance between the inner peripheral convex portion of the anchor and an inner peripheral portion of the armature which is radially closest to the inner peripheral convex portion. In other words, timing at which the outer peripheral convex portion of the anchor and the outer peripheral portion of the armature face each other in a radial direction is shifted from timing at which the inner peripheral convex portion of the anchor and the inner peripheral portion of the armature face each other in the radial direction.

A reflective member driving device including a housing; a holder which is disposed within the housing; a reflective member which is disposed in the holder; a moving plate which is disposed between the housing and the holder; a driving magnet and a sensing magnet which are disposed in the holder; a coil which electromagnetically interacts with the driving magnet; and a first sensor which senses the sensing magnet. The driving magnet includes a first magnet which tilts the reflective member about a first axis and a second magnet which tilts the reflective member about a second axis perpendicular to the first axis. The sensing magnet is disposed at a location where the sensing magnet does not electromagnetically interact with the coil.

An optical unit with a runout correction function includes a reflection member, a camera module having a lens and an image pickup element, a holding member that rotatably holds the reflection member and also holds the camera module, and a fixing member that rotatably holds the holding member. A second rotation mechanism rotates the reflection member held in the holding member with an optical axis direction, which is a direction of an optical axis of the lens, as an axis direction of the rotation and is capable of runout correction in a yaw direction. In the optical unit with a runout correction function, when the runout correction in the yaw direction is performed, the image pickup element held in the holding member is rotated together with the reflection member with the optical axis direction as the axis direction of rotation.

An electromagnetic-actuator (EA) including a coil-element (CE) having a coil-core (CC) / coil arranged about the CC-circumference. The CC has a symmetrical first-region (FR) having an axis-of-symmetry (AOS), the CC being surrounded by the coil, and a movable-magnetic-armature-body (MM AB) as a movable-actuator-element (MAE) interacts with the CE to produce an AB activation-movement, and is supported in the actuator by a bearing-device (BD) and movable from a first / second-position by activating the CE. The BD is radially-offset to the CC AOS, and the AB extends from the BD radially over the CC from a first / second-side of the CC, which has a second-region (SR) extending radially beyond the FR and is on second-side (SS) of the CC between the coil / AB in the direction of AOS such that an air-gap between CC / AB in direction of the AOS is smaller on the SS of the CC than on first-side when the AB is in first-position.

The invention discloses a nozzle baffle type nonlinear electrical converter which comprises a base, an electromagnetic unit and an air injection unit. A supporting frame is fixed to one end of the base. The electromagnetic unit comprises a magnetic field generator, a flexible hinge and an armature; the magnetic field generator generates a magnetic field air gap in the frame body of the support frame; the flexible hinge is fixed on the support frame; the armatures are arranged in parallel, one end, close to the support frame 101, of each armature is a magnetic end, and the other end of each armature is a swinging end; the middles of the armatures are fixed to the flexible hinge, the magnetic ends are inserted into the magnetic field air gap, and the swing ends can swing around the flexible hinge in the top plane direction of the base. The air injection unit comprises an offset baffle and a nozzle; the offset baffle is fixed to the swing end. The nozzle is fixed to the top face of the base, the air inlet end communicates with an air compression pipeline controlling the executing mechanism, and the air spraying end corresponds to the offset baffle. Linear motion of the offset baffle is changed into swing motion, and the problems of concentricity, abrasion and stroke of the converter are effectively solved.

The invention relates to the technical field of optical measurement equipment, and discloses a detachable handheld laser scanner system supporting multi-plug-in combination. Comprising a host, an extension part and a plurality of external components, the host is provided with an expansion part corresponding to the shell, the expansion part comprises a joint cavity arranged on the first direction side of the shell in a sunken manner, a first data interface arranged on the inner wall of the joint cavity and a clamping piece movably arranged in the shell, and the joint cavity is provided with a first side wall and a second side wall which are oppositely arranged in the second direction intersecting with the first direction; the external components comprise one or more of a high-precision laser radar module, a structured light scanning module and a high-resolution image acquisition module, each external component is provided with an embedding part matched with the corresponding joint cavity, and the surface of each embedding part is provided with a data connector matched with the corresponding first data interface; the host computer selects and installs corresponding external components according to different application scene requirements so as to realize at least one function expansion of point cloud precision enhancement, micro target modeling and image texture fusion.

A flow control valve (2) is proposed, which is penetrated by a longitudinal axis (A), comprising a valve body (4) with an inlet opening (6) and an outlet opening (8) on opposite sides of the valve body (4) and a fluid channel (10) which fluidically connects the inlet opening (6) to the outlet opening (8), and an electromagnet (100) which is penetrated by the fluid channel (10), wherein the flow control valve (2) comprises a sealing element (12) which is adjustable between a closed position (S1) closing the fluid channel (10) and an open position releasing the fluid channel (10).

A relay 1 comprises a first fixed contact 7,15 (figure 1), a contact arm 8 having a first movable contact 9,14, and an electromagnetic drive unit 2 having an armature 3 and a yoke 4. A connector 10 (f

To provide an electromagnetic actuator capable of improving responsiveness by promoting a fall of current stored in a coil.SOLUTION: An actuator drive system 100 has a configuration including an electromagnetic actuator 200 and a drive circuit 110 for driving the electromagnetic actuator 200. The electromagnetic actuator comprises: a housing 202; a cylindrical drive coil 210 disposed inside the housing; a drive plunger 220 disposed inside the drive coil; a shaft 10 inserted in the drive plunger; and a lock mechanism for engaging the drive plunger with the shaft when the drive coil is excited. The drive circuit comprises: a switch (drive switch 122) for sending pulse current to the drive coil; and a Zener diode (drive side Zener diode 124) for forming a closed loop between the drive coil and the ground.SELECTED DRAWING: Figure 3

The present invention relates to a system and method to control an electric door lock based on a current pulse generator and a switched mode current source with load-dependent output which allows to reduce the size of the installation and the energy needed for the opening / closing of the door and offers the possibility of implementing a rechargeable battery as back up. To do so, the system and method generates 2 sequential current signals after receiving a trigger, wherein one of the signals is a current peak signal with short time duration and the other one a lower but longer in time current signal.

Embodiments in accordance with the present disclosure relate to devices, systems, and methods for controlling the speed of a movable component in an electronic relay. In a particular embodiment, an electronic relay assembly is disclosed that includes at least one fixed contact and a movable assembly that includes a movable contact coupled to a shaft that is coupled to a plunger. In an embodiment, a plunger is disposed in an actuation channel defined by a magnetic actuation assembly and is configured to move along an actuation path. The electronic relay also includes a magnetic bridge surrounding a portion of the actuation path of the plunger.

The invention discloses a high-frequency linear electromagnet and a control method thereof, and relates to the technical field of electromagnetic control, the electromagnet comprises permanent magnet steel, a magnetizer, a magnet yoke, a motion shaft, an armature, a control coil and an elastic piece, the magnetizer and the armature form four groups of uniform air gaps, after the coil is electrified, the air gap magnetic field changes, electromagnetic acting force is generated, and the motion shaft is driven to move; the electromagnetic acting force is balanced with the reset force and the loading force of the elastic piece; the control method comprises the steps of prepositive verification, magnetic field state sensing, dual-mode driving adjustment, dynamic error feed-forward compensation, stability verification and adaptive parameter updating, interference such as hysteresis and temperature is counteracted by intelligently switching a quick response mode and a high-linearity mode and combining error compensation and adaptive parameter updating, and the stability of the magnetic field is improved. The invention has the advantages of fast high-frequency response, high control precision and stable operation, can be widely applied to high-precision high-frequency driving scenes, and improves the processing quality and efficiency.

The invention relates to an axial flux machine with a stator (1) and a rotor (13), wherein the stator (1) has a stator housing (8) and arranged therein a plurality of stator windings (18) designed as individual teeth (2), between which radially extending spaces are provided, wherein in the stator housing (8) an outer collecting chamber (4) radially outside the individual teeth (2), an inner collecting chamber radially inside the individual teeth (2), an inlet (10) and a return are arranged, wherein the stator (1) is configured to be supplied with a cooling fluid (KF) through the inlet (10) into one of the collecting chambers (4), through the spaces into the other of the collecting chambers (4) and through the return, wherein a valve assembly (14) acting on the flow of the cooling fluid (KF) is provided, wherein the valve assembly (14) has a valve slide (15) made of a ferromagnetically active material and a return spring (16).wherein the valve slide (15) is oriented in an axial direction of the stator (1), wherein the stator (1) has a first and a second pole plate (21.1, 21.2) which are arranged on the two axial sides of the stator (1), wherein the return spring (16) is arranged between the first pole plate (21.1) and the valve slide (15), and wherein the first pole plate (21.1) forms a plunger (17) for the valve slide (15).

The electromagnetic actuator (105) includes a coil element (110) having at least one coil core (135) and a coil (140) arranged circumferentially around the coil core (135), the coil core (135) having a rotationally symmetric first region (136) with an axis of symmetry (137), the first region (136) in which the coil core (135) is surrounded by the coil (140) in the circumferential direction, and an armature body (115) that cooperates with the coil element (110) for movement to actuate the armature body (115) and is actuated by a bearing device (106) on one side. and a movable magnetic armature body (115) as a movable actuator element supported on the motor (105) and movable from a first position (147) to a second position (149) by actuating the coil element (110), the support device (106) being arranged radially displaced with respect to a symmetry axis (137) of the coil core (135), the armature body (115) extending radially from the support device (106) through the coil core (135) from a first side (131) to a second side (132) of the coil core (135). The coil core (135) has a second region (138) that extends radially beyond the first region (136) and is disposed between the coil (140) and the armature body (115) in the direction of the axis of symmetry (137) on a second side (132) of the coil core (135), such that at a first position (147) of the armature body (115), a gap (190) between the coil core (135) and the armature body (115) in the direction of the axis of symmetry (137) is smaller on the second side (132) of the coil core than on the first side (131).

Disclosed in the present invention are a magnetic circuit part having an enhanced initial electromagnetic attraction force, and a high-voltage direct-current relay. The magnetic circuit part comprises a coil, a movable magnetic conductor and a static magnetic conductor, wherein the coil, the movable magnetic conductor and the static magnetic conductor are respectively mounted at suitable positions, such that a magnetic pole surface of the movable magnetic conductor and a magnetic pole surface of the static magnetic conductor are in opposite positions with a preset magnetic gap; and one of the two magnetic pole surfaces is provided with a protrusion that protrudes toward the other magnetic pole surface, and the other magnetic pole surface is provided, at a position corresponding to the protrusion, with a recess in which the protrusion of one of the magnetic pole surfaces can be embedded when the movable magnetic conductor and the static magnetic conductor attract each other. According to the present invention, the initial electromagnetic attraction force can be enhanced under the same volume and power consumption of the coil; or under the same initial electromagnetic attraction force, the volume of the coil is reduced, and the power consumption of the coil is decreased.

A method for supervised training of a machine learning model is described. Furthermore, a method for determining the armature position of an electrical actuator is described. A method for controlling an electrical actuator is also described. A computer device (2) configured to execute such a training method is described. A control device (4) configured to execute such a method for determining the armature position and such a method for controlling the actuator is also described. Finally, a vehicle (6) equipped with such a control device (4) is described.

The invention provides a magnetic flux generator to enhance ion transport in an electrochemical cell. The magnetic flux generator comprises one or more magnetic field sources, each being configured to produce a respective magnetic field. Each magnetic field is individually controllably variable in three spatial dimensions.

A system includes an electric actuator having an actuation stem, a screw assembly, an electric drive, and a lock. The screw assembly is coupled to the actuation stem, wherein the screw assembly includes a male screw portion coupled to a female screw portion. The electric drive is coupled to the screw assembly, wherein the electric drive is configured to move the screw assembly to move the actuation stem. The lock is configured to hold a position of the actuation stem when not driving movement of the actuation stem.

Control device (10) for determining switching times of an electromagnetic actuator (1), comprising: - a first process module (11) designed to determine a course of a concatenated magnetic flux as a function of a current intensity for controlling the electromagnetic actuator (1) as an actual characteristic curve (200); - a second process module (12) designed to provide at least one reference characteristic curve (300) for the magnetic flux as a function of the current intensity for controlling the electromagnetic actuator (1), wherein the reference characteristic curve (300) has a first characteristic curve section (301), wherein the first characteristic curve section (301) has a linear profile with a defined gradient and a negative offset (320), wherein the negative offset (320) is selected such that during a switching operation in which the electromagnetic actuator (1) is not moved, the first characteristic curve section (301) of the reference characteristic curve (300) is not exceeded, and wherein the slope of the first characteristic curve section (301) corresponds to a slope of the actual characteristic curve at the beginning of switching off the electromagnetic actuator (1), wherein the reference characteristic curve (300) has a second characteristic curve section (302) whose gradient corresponds to the actual characteristic curve at the beginning of switching on the electromagnetic actuator (1) and which includes a positive offset, and wherein the switching off begins with switching off the power supply of the electromagnetic actuator (1); and - a third process module (13) designed to determine a switching time of the electromagnetic actuator (1) using a comparison of values ​​of the actual characteristic curve (200) with values ​​of the at least one reference characteristic curve (300).

The invention relates to an electromagnetic actuator having a magnetic circuit comprising at least two, preferably three, magnetic circuit elements, wherein the magnetic circuit elements exert an attracting or repelling force on one another such that the actuator effects a movement, wherein the position of at least one of the magnetic circuit elements relative to another magnetic circuit element can be adjusted in order to influence the actuator rigidity.

An actuating device include a base, a frame body, two first shaft portions, an optical element, a frame body driving assembly, and a frame body sensing module. The two first shaft portions extend along a first axis. Each first shaft portion is located between the frame body and the base. The optical element is disposed in an opening of the frame body. The frame body driving assembly drives the frame body to swing about the two first shaft portions as rotating axes and includes a first coil and a first magnetic element disposed on one of the two first side walls and is located between the first coil and the frame body. The frame body sensing module is connected to the base and includes a frame body sensor disposed adjacent to the first magnetic element to sense an amount of change in magnetic field strength of the first magnetic element.

Systems and methods are disclosed for assessing the functionality of solenoid valve activation in peritoneal dialysis systems. In at least one embodiment, measurements of current values may be received from a solenoid valve at a predetermined sampling rate over a predetermine duration of time to generate a current profile for the solenoid valve. A fifth degree polynomial model may be fit to the current profile and optimized. The optimized polynomial model may be applied to a trained support vector machine to determine whether the current profile indicates that the corresponding solenoid valve has actually opened or closed.

An imaging lens driving module and an electronic device are disclosed. The imaging lens driving module includes an imaging lens group, a carrier element and a driving mechanism. The imaging lens group has an optical axis. The carrier element is configured to accommodate the imaging lens group and includes an assembly structure. The assembly structure is disposed on an outer surface of the carrier element and extends away from the optical axis. The driving mechanism is configured to drive the carrier element to move along a direction parallel to the optical axis and includes a coil set and a magnet. The coil set is disposed on the assembly structure and includes a bottom coil and a top coil. The bottom coil is wound around the assembly structure and in physical contact with the assembly structure. The top coil is stacked on the bottom coil, further away from the assembly structure than the bottom coil, and overlaps the bottom coil along the direction parallel to the optical axis. The magnet is disposed corresponding to the coil set. The same wire is used to wind the assembly structure, thereby saving the product cycle time.

A battery management system comprising one or more batteries 20 and electric circuitry connected to the batteries and further connectable to a power source 40 for charging and / or to an electric load 3

An electromagnetic actuator (1) for an assembly, which has a fluid space configured to be fluidically connected to the actuator when the actuator is installed in the assembly, includes a movable armature in an armature space (6). The armature includes a movable armature rod (8). The actuator is configured to fill the armature space (6) with fluid, such as oil, via axial movements of the armature rod that draw fluid from the fluid space into the armature space (6) through a fluid path when the armature rod is fluidically connected to the fluid space.

Solenoid valve with a valve housing (2) having an inlet port (3) and an outlet port (4), and with a fluid channel (10) extending through the valve housing (2) between the inlet port (3) and the outlet port (4), and with a valve body (8) linearly movable along an axis of movement (9) in the valve housing (2), which is designed for adjusting a free cross-section of the fluid channel (10), wherein a drive device (15) for introducing drive forces onto the valve body (8) is arranged in the valve housing (2), which comprises an electrical coil arrangement (16) and a permanent magnet arrangement (7), wherein the valve body (8) is provided with the coil arrangement (16) and the permanent magnet arrangement (7) is associated with the valve housing (2), and wherein the permanent magnet arrangement (7) comprises at least two permanent magnets (29, 30, 31) each with axial magnetization.the coils are spaced apart from each other in the axial direction with opposite polarization and wherein the coil arrangement (16) comprises at least two coil sections (17, 18, 19, 20) designed to provide oppositely oriented magnetic fields, wherein the coil sections (17, 18, 19, 20) are wound on a coil former (8) which is at least partially sleeve-shaped and which has several radially projecting, annularly circumferential separating sections (21, 22, 23, 24, 25, 26, 27, 28) serving to guide the coil former (8) in the valve housing (2) and wherein the valve body (8) and the permanent magnet arrangement (7) are designed for mutual sliding bearing.

An electromagnetic relay (1) comprises a contact part (2) and an electromagnet part (3). The electromagnet part (3) is an electromagnet device. In an off state of the electromagnet part (3), a movable element core (33) is at the illustrated base position. In an on state, the electromagnet part (3) moves the movable element core (33) in a first direction (AD1). The electromagnetic relay (1) has a magnetic bias device (8). The magnetic bias device (8) attracts the movable element core (33) in a second direction (AD2) with the magnetic force of a permanent magnet (81). The magnetic bias device (8) applies a biasing force to the movable element core (33) most strongly at the base position of the movable element core (33). However, as the movable element core (33) moves in the first direction AD1, the biasing force is rapidly lost. The magnetic bias device (8) suppresses incorrect behavior in an off state.