SOLENOID

• Main Authors: FUJISAWA TAKESHI, TAKAHASHI KENRO, SHIZUKU OSAMICHI
• Format: Patent
• Language: English; Japanese
• Published: 02.04.2020
• Subjects: ACTUATING-FLOATS; BASIC ELECTRIC ELEMENTS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INDUCTANCES; LIGHTING; MAGNETS; MECHANICAL ENGINEERING; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TAPS; THERMAL INSULATION IN GENERAL; TRANSFORMERS; VALVES; WEAPONS

To provide a solenoid that can reduce friction when the plunger moves in the axial direction and can suppress an increase in cost.SOLUTION: A solenoid includes a cylindrical bobbin having a through hole in the axial direction, a coil wound around the bobbin, a cylindrical yoke arranged in a through hole of the bobbin, and a plunger disposed so as to be axially movable in the yoke, and one of the inner peripheral surface of the yoke and the outer peripheral surface of the plunger has a plurality of grooves that are radially concave over the entire circumference in the one axial end and the other axial end, and a plurality of sheet members is arranged along each of the grooves.SELECTED DRAWING: Figure 1 【課題】プランジャの軸方向移動の際の摩擦を低減するとともにコスト増加を抑えることができるソレノイドを提供することである。【解決手段】軸方向に貫通孔を有する円筒状のボビンと、前記ボビンに巻き回されたコイルと、前記ボビンの貫通孔に配置された円筒状のヨークと、前記ヨーク内を軸方向に移動可能に配置されたプランジャと、を備えたソレノイドであって、前記ヨークの内周面、前記プランジャの外周面のいずれか一方は、軸方向一端側及び軸方向他端側において周方向全周に渡って径方向に凹んだ複数の溝部を有し、前記複数の溝部のそれぞれに沿って配置された複数のシート部材を備えた。【選択図】図１