A bi-stable solenoid includes a housing, a wire coil arranged within the housing, a first pole piece, a second pole piece, an armature slidably arranged within the housing, and a permanent magnet arranged within the armature between a first armature portion and a second armature portion. The first armature portion and the second armature portion are fabricated from a magnetically permeable material. Selective energization of the wire coil generates a wire coil flux path and is configured to move the armature between the first stable position and the second stable position. The first stable position is established by magnetic flux of the permanent magnet shorting through the first pole piece, and the second stable position is established by the magnetic flux of the permanent magnet traversing the wire coil flux path.

In one aspect, there is disclosed a solenoid having a bobbin with a core wire positioned about the bobbin to form a coil. A power supply wire is connected an end of the core wire and a frame is connected to the bobbin. An overmolded housing surrounds the core wire, the frame and a portion of the power supply wire.

A rotary solenoid includes: a fixed body portion having a casing in which a pair of bearing portions and positioned on front and rear sides are provided; and a movable body portion having a rotation shaft rotatably supported by the pair of bearing portions. The fixed body portion includes: the casing formed of a magnetic material; and an air-cored coil of which the surface orthogonal to an axial direction of the rotation shaft is fixed to an inner surface of the casing. The movable body portion includes: a rotor yoke having one end fixed to the rotation shaft; and a magnet portion having a pair of magnets and fixed to an opposing surface positioned on the other end side of the rotor yoke serving as a surface opposing the air-cored coil and disposed along a rotation direction of the opposing surface.

A rotary solenoid includes: a fixed body portion having a casing in which a pair of bearing portions and positioned on front and rear sides are provided; and a movable body portion having a rotation shaft rotatably supported by the pair of bearing portions. The fixed body portion includes: the casing formed of a magnetic material; and an air-cored coil of which the surface orthogonal to an axial direction of the rotation shaft is fixed to an inner surface of the casing. The movable body portion includes: a rotor yoke having one end fixed to the rotation shaft; and a magnet portion having a pair of magnets and fixed to an opposing surface positioned on the other end side of the rotor yoke serving as a surface opposing the air-cored coil and disposed along a rotation direction of the opposing surface.

A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening that opens on the rear side; and a first inner wall part expanding in a cylindrical shape on the outer side in the radial direction on an inner wall on the rear side. The first inner wall part has a first step part at the end on the other side in the axial direction. A first cylindrical part of the yoke has a first flange part on the rear side. The first flange part has a hole penetrating in the axial direction. A second space, which communicates a second through hole with the hole when the plunger has moved to a retreat position, is provided between an inner surface of the lid and the plunger and the yoke.

A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening that opens on the rear side; and a first inner wall part expanding in a cylindrical shape on the outer side in the radial direction on an inner wall on the rear side. The first inner wall part has a first step part at the end on the other side in the axial direction. A first cylindrical part of the yoke has a first flange part on the rear side. The first flange part has a hole penetrating in the axial direction. A second space, which communicates a second through hole with the hole when the plunger has moved to a retreat position, is provided between an inner surface of the lid and the plunger and the yoke.

Provide are a solenoid coil structure, a solenoid coil assembly and a control device each including the same. The solenoid coil structure includes: a bobbin having a cylindrical body about which a coil is wound and a plurality of lead-pin coupling parts extending on the body in an axial direction; and a housing having an outer side surface covering an outer circumferential surface of the body, and an end surface which the plurality of lead-pin coupling parts pass through and protrude from and which is located on an end of the outer side surface in the axial direction.

Provide are a solenoid coil structure, a solenoid coil assembly and a control device each including the same. The solenoid coil structure includes: a bobbin having a cylindrical body about which a coil is wound and a plurality of lead-pin coupling parts extending on the body in an axial direction; and a housing having an outer side surface covering an outer circumferential surface of the body, and an end surface which the plurality of lead-pin coupling parts pass through and protrude from and which is located on an end of the outer side surface in the axial direction.

A curved haptic actuator according to an embodiment may comprise: a housing having a receiving space and having a shape where the receiving space and an outer appearance thereof are bent outward; a vibration unit disposed in the receiving space, being movable along the longitudinal direction of the housing, and having a shape bent upward; elastic bodies connected to an inner wall of the housing and both sides of the vibration unit; and a magnetic field generation unit which is installed on the inner wall of the housing and generates a magnetic field and applies the magnetic field to the vibration unit.

A method for manufacturing a magnetic valve and a corresponding magnetic valve, in particular for the use for electrically continuously adjustable shock absorbers of a vehicle. A valve housing and a magnetic armature which is movably supported relative to a longitudinal axis of an electrically energizable coil and which is at least partially surrounded by a pole tube which is at least partially surrounded by a coil body of the coil that in turn is cast with a casting compound, provides a corrosion protection cap covering an axial end of the pole tube. The corrosion protection cap establishing a connection to the casting compound and protecting the axial end of the pole tube against corrosion influences from the atmosphere.