1285results about "Electromagnets with armatures" patented technology

An optical element driving mechanism is provided. The optical element driving mechanism includes a first holder, a fixed portion, a first driving assembly, and a first stopping assembly. The first holder is used for connecting to an optical element. The first holder is movable relative to the fixed portion. The first driving assembly is used for driving the first holder to move relative to the fixed portion. The first stopping assembly is used for restricting the movable range of the first holder relative to the fixed portion.

A device includes a frame and a haptic engine. The frame defines at least one flexure. The haptic engine includes a core attached to the frame, an attraction plate attached to the at least one flexure, and an electric coil wound around at least a portion of the core. The attraction plate is separated from the core by a gap. The electric coil, when energized, creates a magnetic field that causes a width of the gap to temporarily change. Some embodiments include a cushioning pad positioned within the gap or a layer of compliant material that attaches the attraction plate to the at least one flexure or the frame.

An electromagnetic relay includes a first fixed terminal, a second fixed terminal, a movable contact piece, a moving member, a drive device, and a magnet member. The first fixed terminal includes a first fixed contact. The second fixed terminal includes a second fixed contact. The movable contact piece includes a first movable contact facing the first fixed contact in a first direction and a second movable contact facing the second fixed contact in the first direction, the first direction including a contact direction toward the first fixed contact and a separation direction away from the first fixed contact. The moving member is connected to the movable contact piece. The drive device includes a coil, a movable iron core, and a first yoke. The coil generates electromagnetic force. The movable iron core is arranged radially outside of the coil and is fixed to the moving member. The first yoke includes an attracting portion to attract the movable iron core by the electromagnetic force. The magnet member is arranged radially outside of the coil and assists the attracting portion to attract the movable iron core.

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 first fixed iron core and a second fixed iron core located on a first end side and a second end side of an axial direction of a coil, a first movable iron core and a second movable iron core located therebetween and attracted by the first fixed iron core and the second fixed iron core by passage of current through the coil, respectively, a spring housed in a spring chamber formed on the first fixed iron core side of the first movable iron core and biasing the first movable iron core to the second fixed iron core side, a leaf spring that regulates movement of the first movable iron core to the second fixed iron core side with respect to the second movable iron core, and a throttle passage that causes the spring chamber to communicate with outside.

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).

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 transferred to the stator (10); - an armature (20) 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 transferred to the armature (20); - Power lines (3) through which at least one stator coil (11) can be energized, - Cable (4) through which the at least one armature coil (21) can be energized, - a rotation angle limiting device (5) by which rotation of the armature relative to the stator is limited to a rotation angle range of 0 to 359 degrees.

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.

A linear electrical machine including a frame with a level reference plane, an array of electromagnets connected to the frame and coupled to an alternating current power source energizing each electromagnet, at least one reaction platen of paramagnetic, diamagnetic, or non-magnetic conductive material disposed to cooperate with the electromagnets of the array of electromagnets so that excitation of the electromagnets with alternating current generates levitation and propulsion forces against the reaction platen that controllably levitate and propel the reaction platen along at least one drive line, in a controlled attitude relative to the drive plane, and a controller operably coupled to the array of electromagnets and the alternating current power source and configured so as to sequentially excite the electromagnets with multiphase alternating current with a predetermined excitation characteristic so that each reaction platen is levitated and propelled with up to six degrees of freedom.

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.

A locking arrangement has an electromagnet having an armature and an armature rod, a component which is rotatable about an axis in a first direction of rotation and in an opposite second direction of rotation and has circumferential engagements, a latching means with a restoring surface, which is connected to the armature rod and is adjustable between a latching position and a release position, a spring element which pretensions the latching means into the latching position and allows the latching means to be restored into the release position. The rotatable component can act on the restoring surface during rotation in the second direction of rotation to bring the latching means into the release position counter to the spring force of the spring element.

A sensor shifting module includes a fixed body, a first movable body movably disposed on the fixed body and coupled to an image sensor having an imaging plane oriented in a first direction, and a first driver configured to rotate the first movable body about an axis orthogonal to the first direction with respect to the fixed body, wherein the first driver includes a tilt guide ball disposed between the fixed body and the first movable body to provide a tilt center for the first movable body with respect to the fixed body.

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.

A spray control assembly includes a spray gun (24) fluidly and electrically connected to a module (26). The spray gun (24) is configured to output a spray of fluid for application on a substrate. A trigger (34) of the spray gun (24) is operatively connected to a controller to control actuation of a solenoid that is connected to a spray valve of the spray gun to actuate the spray valve open to cause spraying by the fluid sprayer. The pressurized spray fluid is provided to the module and flows through the module and downstream to the spray gun.

An actuator release mechanism includes: a longitudinal sleeve movable along an axis between a lock and release positions; drive means for causing the longitudinal sleeve to move along the axis; and bias means to bias the longitudinal sleeve to the lock position. The drive means includes: a rotary solenoid having a first direction of rotation and a second direction of rotation; a toggle member having a toggle shaft connected to and rotatable with the rotary solenoid, and a toggle head in engagement with the longitudinal sleeve by pins extending radially inwards from the longitudinal sleeve and a helical guide rail provided on a radially outer surface of the toggle head. The longitudinal sleeve is mounted around the toggle head, such that rotation of the solenoid causes rotation of the toggle member and the guide rails which causes the pin(s) to ride along the guide rail to rotate the sleeve.

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.

Various embodiments relate to a hybrid electromechanical transformer system and related methods. One such system comprises an electromechanical transformer device comprising an oscillating suspension element, wherein the oscillating suspension element comprises a platform and one or more suspension arms. The one or more suspension arms are attached to a respective side of the platform, wherein the oscillating suspension element further comprises a frame. The device further comprises at least one piezoelectric element attached to the one or more suspension arms of the oscillating suspension element of the oscillating suspension element: a piezoelectric transducer port coupled to the at least one piezoelectric element: a permanent magnet attached to the platform of the oscillating suspension element; a coil electrodynamically coupled with the permanent magnet and attached to the frame of the oscillating suspension element; and an electrodynamic transducer port coupled to the coil.

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.

The invention relates to a method for controlling the operation of a solenoid valve (10), which is used to control the flow rate of a spray fluid, of an agricultural spreading machine, having the steps of: energizing the solenoid valve (10) according to an energizing specification as part of a control process, wherein by energizing the solenoid valve (10), the movement of a solenoid valve (10) armature (16) arranged in a housing (28) of the solenoid valve (10) is produced, detecting the operating state of the solenoid valve (10) using an electronic data processing device (26), and adapting the energizing specification for the solenoid valve (10) while taking into consideration the detected operating state of the solenoid valve (10).

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.

To solve the problems of the prior art, an optical element driving mechanism is provided. The optical element driving mechanism includes a fixed part, a movable part, and a driving assembly. The movable part is movable relative to the fixed part. The driving assembly drives the movable part to move relative to the fixed part.

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.

An optical element driving mechanism is provided, including a movable part, a fixed part, and a driving assembly. The movable part is for connecting an optical element. The movable part is movable relative to the fixed part. The driving assembly is for driving the movable part to move relative to the fixed part. The optical element is used to correspond to an electromagnetic wave.

The utility model discloses a magnetic circuit part and connector connection structure and an electromagnet, the magnetic circuit part comprises a magnetic circuit part and a connector, the magnetic circuit part comprises a coil rack and a yoke, the yoke and the coil rack are relatively fixed, an enameled wire is wound on the coil rack, a plurality of coil leading-out pins are arranged on the coil rack, and each end of the enameled wire is respectively wound and connected with the corresponding coil leading-out pins; the connector comprises an insulated support and a plurality of leading-out ends mounted on the support; the support is fixedly connected with the yoke, and the coil leading-out pins are electrically connected with the leading-out ends in a one-to-one mode respectively. The support of the connector is fixedly connected with the yoke, so that the fixing position of the connector is more flexible, the connector can be conveniently arranged according to actual requirements, the yoke has enough area to be connected and matched with the support, and the support is connected with the yoke through plastic and metal, so that the connector is more convenient to realize the connection and fixation of the support, and the connector is more convenient to use. And the connection reliability of the support can be improved.