公开(公告)号：US20150380143A1

公开(公告)日：2015-12-31

申请号：US14740600

申请日：2015-06-16

Applicant: DENSO CORPORATION

Inventor： Katsuhiro SAIKI ,  Akinori HIRANO ,  Shinichi KONDO

IPC: H01F7/16 ,  F16K31/06 ,  H01F7/129

CPC classification number: H01F7/1607 ,  F16K27/029 ,  F16K27/048 ,  F16K31/0613 ,  F16K31/0668 ,  F16K31/0675 ,  F16K31/0693 ,  H01F7/081 ,  H01F7/129 ,  H01F2007/086

Abstract: A linear solenoid has a coil assembly, a plunger, a stator core, and an elastic member. The coil assembly has a coil provided by a conducting wire. The plunger is disposed inside of the coil assembly and is movable in an axial direction. The stator core has a guiding portion guiding the plunger to move in the axial direction, an attracting portion attracting the plunger by generating a magnetic attractive force when the coil is energized, and a blocking portion blocking a magnetic field between the guiding portion and the attracting portion. The elastic member has an annular shape and is disposed between the blocking portion and the coil assembly. The elastic member is in contact with both an outer wall surface of the blocking portion and an inner wall surface of the coil assembly entirely in a circumferential direction of the elastic member.

Abstract translation: 线性螺线管具有线圈组件，柱塞，定子芯和弹性构件。 线圈组件具有由导线提供的线圈。 柱塞设置在线圈组件的内部并且可以在轴向方向上移动。 定子铁芯具有引导柱塞沿轴向移动的引导部分，当线圈被通电时通过产生磁吸力而吸引柱塞的吸引部分，以及阻挡引导部分和吸引力之间的磁场的阻挡部分 一部分。 弹性构件具有环形形状并且设置在阻挡部分和线圈组件之间。 弹性构件与弹性构件的圆周方向上的阻塞部分的外壁表面和线圈组件的内壁表面两者接触。