923results about "Electromagnets with armatures" patented technology

An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a movable portion, a driving assembly, and a first weighting element. The movable portion is arranged with the fixed portion in a main axis, and the movable portion is movable relative to the fixed portion. The driving assembly is used for driving the movable portion to move relative to the fixed portion. The first weighting element is disposed on the driving assembly for stabilizing the driving assembly.

A solenoid includes a coil, a housing, an armature, an anchor, and a cover member. The coil is wound annularly, and is configured to generate a magnetic force in reaction to power supply. The armature is provided movably in a direction of a winding axis of the coil, and is made of a magnetic body. The anchor is provided on one side in a movement direction of the armature. The housing is opened on one axial end side. The cover member covers the coil, and is configured to establish a magnetic circuit. The cover member is formed by pressing a plate-like member having an even thickness. The cover member is formed using a plurality of differently shaped members (a first member and a second member).

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.

The present invention provides a solenoid, a damping force adjustment mechanism, and a damping force adjustable shock absorber capable of securing a thrust force of a mover (a moving core) and also suppressing a vibration at the same time. The solenoid includes a coil, an armature, an anchor, and an actuation pin. The coil generates a magnetic field in reaction to power supply thereto. The armature is at least partially located on an inner peripheral side of the coil, and is provided axially movably. The anchor faces the armature axially. The actuation pin is displaced integrally with the armature. The armature includes a large-diameter portion and a small-diameter portion. In this case, the small-diameter portion is provided on the anchor side.

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.

A locking unit with a hydraulically actuable piston, an electromagnet with a coil and an armature, at least one latching element, a coupling rod, and a magnetic element. The coupling rod connects the magnetic element to the armature or an armature rod which is attached thereto, and a prestressing element fixes the magnetic element in a guide tube radially. As a result, an advantageous position determination is made possible by way of sensing of a magnetic field which is generated by the magnetic element.

The present invention aims to provide a valve driving device that suppresses an increase in size and improves thrust. The present invention includes a bobbin including a body portion, a solenoid coil wound around the body portion of the bobbin, an armature arranged on a radially inner side of the bobbin and fixed to a rod, an anchor that covers one side in an axial direction of the armature at a position on the radially inner side of the bobbin, a yoke partially arranged between the bobbin and the anchor, and a cylindrical member arranged between the bobbin and the armature. The bobbin includes a recessed portion on the radially inner side, and a part of the cylindrical member is inserted into the recessed portion. A part of the cylindrical member and the recessed portion are arranged so as to be laminated in the radial direction.

The invention provides a Wiegand line structure, a manufacturing method of the Wiegand line structure and a Wiegand sensor. The Wiegand line structure includes: a metal wire; the magnetic layer is arranged on the periphery of the metal wire in a surrounding mode, and the material for forming the metal wire and the material for forming the magnetic layer are different magnetic materials. According to the application, the range of materials for manufacturing the Wiegand line structure is broadened, the design flexibility of the Wiegand line is further improved, complicated mechanical structure adjustment is not needed, a stress treatment process in the prior art is avoided, the process controllability of the Wiegand line is enhanced, the reliable and stable performance of the Wiegand line structure is determined, and the application range of the Wiegand line structure is widened. And the practicability is high.

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.

The utility model discloses an electromagnetic driver which comprises a shell and an electromagnetic mechanism, and the shell is provided with an installation cavity. The electromagnetic mechanism comprises a coil assembly, a fixed iron core and a movable iron core assembly, the coil assembly is fixedly arranged in the mounting cavity, the fixed iron core is fixedly connected to the shell, the coil assembly is used for generating a magnetic field to attract the movable iron core assembly to move in the direction close to the fixed iron core, and the movable iron core assembly comprises a movable iron core, an actuating shaft, a damping block and a spring; a connecting groove is formed in the movable iron core in the axial direction, the actuating shaft is fixedly connected to the connecting groove and slidably connected to the fixed iron core, the damping block is slidably connected to the connecting groove, the spring is arranged between the actuating shaft and the damping block, and the spring is used for driving the damping block to stretch out of the connecting groove so that the damping block can abut against the shell, and noise generated during operation can be reduced. And the user experience is improved.

A detent solenoid includes an armature assembly with a groove, a coil arranged for displacing the armature assembly, and a detent arranged for seating in the groove. In an example embodiment, the groove includes a first axial side having a toroidal shape and a second axial side, opposite the first axial side, having a conical shape. In some example embodiments, the armature assembly includes an armature and a shaft fixed in the armature, and the groove is disposed in the shaft. In an example embodiment, the armature is made of a ferrous material.

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 solenoid system and method can include: providing an energizing voltage to a coil of a solenoid; providing an AC signal superimposed onto the energizing voltage; detecting current through the coil including an AC current amplitude induced by the AC signal and including a DC offset current amplitude; determining the AC current amplitude is a low AC current amplitude based on an armature within the solenoid being in a retracted position or determining the AC current amplitude is a high AC current amplitude based on the armature being in an extended position with the control logic, and where the AC current amplitude is determined utilizing the AC signal for synchronous demodulation; and determining a temperature fault based on the DC offset current amplitude falling below a DC offset current amplitude threshold.

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.

A linear electrical machine includes a frame, an array of electromagnets, and at least one reaction platen, where excitation of the electromagnets generates levitation and propulsion forces against the at least one reaction platen that controllably levitate and propel the at least one reaction platen along at least one drive line, in a controlled attitude relative to the drive plane. A controller system with coil controllers sequentially excites the electromagnets with a predetermined excitation characteristic so as to describe six degree of freedom reaction platen control of each of the at least one reaction platen, and the at least one reaction platen is levitated and propelled with at least four degrees of freedom. Each respective coil controller is coupled to electromagnets at a predetermined location so that the electromagnets at the corresponding predetermined location are controlled by the respective coil controller separate and distinct from each other coil controller.

An embodiment of the present invention relates to a lens driving device comprising: a base; a housing; a bobbin; a first magnet; a first coil; a first substrate including a second coil; an upper elastic member; a lateral elastic member; a second magnet; and a sensor, wherein the bobbin comprises a recess in which the second magnet is disposed; the upper elastic member comprises an inner portion coupled to the bobbin, an outer portion coupled to the housing, and a connection part connecting the inner portion and the outer portion to each other, and the inner portion includes a first region overlapping the second magnet in the optical axis direction.

An electrically driven fastener structure includes a body, a fastening unit and a wire. The body has a first assembly portion. The fastening unit has a second assembly portion corresponding to the first assembly portion. The wire is adapted to pass a current and to pass through the first assembly portion or the second portion to form a magnetic switch using the first assembly portion or the second assembly portion, so as to drive the magnetic switch based on on or off or strong or weak of the current, or to drive the magnetic switch based on on or off or strong or weak of a magnetic force.

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.

Disclosed is an expansion valve coil assembly, comprising a coil unit and a housing, wherein the coil unit is provided with a mounting platform, the mounting platform is provided, in a partially protruding manner, with a connecting part, and the housing is sheathed over the connecting part and is fixedly connected to the mounting platform; and a side wall of the connecting part has a concave-convex structure, and the space between an inner side of the housing and the connecting part is filled with a sealing material.

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.

The invention provides a three-position electromagnet and a switch, and relates to the technical field of electromagnets. The three-position electromagnet comprises a shell, a movable iron core, a first permanent magnet, a second permanent magnet, an elastic reset piece, a first coil and a second coil. The movable iron core is slidably arranged on the shell; the first permanent magnet is arranged on the shell and located at one end of the movable iron core in the sliding direction. The second permanent magnet is arranged on the shell and located at the other end of the movable iron core in the sliding direction. The elastic reset piece is used for driving the movable iron core to move towards the first permanent magnet; the first coil is arranged on the shell and surrounds the movable iron core; the second coil is arranged on the shell and surrounds the movable iron core. The three-position electromagnet has two driving strokes in the same direction, a steering mechanism does not need to be additionally arranged, two two-position electromagnets do not need to be used, the structure is simpler, and the size is smaller.

The invention relates to a device for controlling and / or regulating the movement of an object with regard to high dynamics with high accuracy and low energy consumption, said device comprising an electromagnetic actuator (2) which is designed to move the object and which has a stator (3) and a rotor (4), the rotor interacts electromagnetically with the stator (3) to generate movement and is coupled with an object or carries the object; a flexible member (7, 12) for guiding and / or carrying the rotor (4); and at least one sensor (13) for detecting a movement of the rotor (4) and / or of the object, a sensor signal of the at least one sensor (13) generated on the basis of the movement of the rotor (4) and / or of the object being able to be used for controlling and / or adjusting the position of the rotor (4). The invention further relates to a corresponding method.

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