Solenoid, solenoid valve, shock absorber, and method for manufacturing a solenoid
AssigneeHitachi Astemo, Ltd.
InventorsTomohiko Iida, Shunsuke Mori, Hiroshi Yamagai
Life of this patent
Estimating the term…
Abstract
A solenoid includes a coil bobbin, a coil, a terminal, a housing, an armature, an actuation pin, and the like. The coil bobbin includes a tubular portion, and a first flange portion formed on one end of the tubular portion and extending radially to outside the tubular portion. The coil is wound around the coil bobbin. The terminal connects a terminal conductor portion of the coil and a cable. The terminal includes a joint portion that joins the terminal conductor portion of the coil. The joint portion extends in a direction along one end surface of the first flange portion.
Claims12
A solenoid comprising:
- a bobbin including a tubular portion, and a large-diameter portion formed on one end of the tubular portion and extending radially to outside the tubular portion;
- a coil wound around the bobbin;
- a terminal configured as a member that connects a terminal conductor portion of the coil and an external electric wire and including a joint portion that joins the terminal conductor portion of the coil, the joint portion extending in a direction along one end surface of the large-diameter portion of the bobbin;
- a magnetic core fixed to an inner periphery of the coil;
- and
- a magnetic plunger provided movably closer to the core,
- wherein the terminal includes a winding portion around which the terminal conductor portion of the coil is wound, and the winding portion and an arm portion extending from the winding portion extend together with the joint portion in a direction in which the joint portion is disposed along the one end surface of the large-diameter portion of the bobbin,
- wherein the terminal further includes a curved portion curved toward a radially inner side of the bobbin so as to cause the winding portion of the terminal to be located inside the large-diameter portion of the bobbin,
- wherein the curved portion is curved by being supported by a support portion provided on the bobbin,
- wherein the terminal further includes an extension portion, and the extension portion includes a first extension portion extending outward in the radial direction of the bobbin and a second extension portion extending in a central axial direction of the bobbin from a distal end of the first extension portion, thereby forming the extension portion in the shape of the letter L, and
- wherein the second extension portion holds the external wire.
Dependencies are inferred from the claim text.