SOLENOID DEVICE AND CONTROL VALVE

To suppress magnetic attraction of a plunger and a case, without shortening the peripheral surface length of the plunger.SOLUTION: A solenoid device includes cases (16A, 16B), a bobbin (10) supported in the cases (16A, 16B), and having a first cylindrical part provided with a first center shaft hole...

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Bibliographic Details
Main Authors TAKADA YUJI, CHEN DONGMING, TAKAHASHI KENRO, SHIZUKU OSAMICHI, SANUKI HIRONORI
Format Patent
LanguageEnglish
Japanese
Published 14.03.2019
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
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Summary:To suppress magnetic attraction of a plunger and a case, without shortening the peripheral surface length of the plunger.SOLUTION: A solenoid device includes cases (16A, 16B), a bobbin (10) supported in the cases (16A, 16B), and having a first cylindrical part provided with a first center shaft hole in the axial direction, a coil (11) wound around the first cylindrical part, cores (12A, 12B) placed in the first center shaft hole, and having a second cylindrical part provided with a second center shaft hole in the axial direction, a plunger (13) composed of a magnetic substance, placed in the space on the inside of the second cylindrical part, having a shaft hole elongating in the axial direction, and movable in the axial direction for the second cylindrical part, a shaft pin (14) inserted into the shaft hole, and having one side in the axial direction exposed from the cases (16A, 16B), and the other side in the axial direction covered with the cases (16A, 16B), and a non-magnetic substance (19) to be fixed to the shaft pin (14).SELECTED DRAWING: Figure 1 【課題】プランジャの周面長さを短くせずにプランジャとケースの磁気吸着を抑える。【解決手段】ソレノイド装置は、ケース（１６Ａ，１６Ｂ）と、ケース（１６Ａ，１６Ｂ）内に支持され、軸方向に沿った第１の中心軸穴を備えた第１の円筒部を有するボビン（１０）と、第１の円筒部に巻回されるコイル（１１）と、第１の中心軸穴内に配置され、軸方向に沿った第２の中心軸穴を備えた第２の円筒部を有するコア（１２Ａ，１２Ｂ）と、磁性体からなり、第２の円筒部の内側の空間内に配置され、軸方向に延びるシャフトホールを有し、かつ、第２の円筒部に対して軸方向に移動可能なプランジャ（１３）と、シャフトホールに挿入され、軸方向の一方側がケース（１６Ａ，１６Ｂ）から露出し、軸方向の他方側がケース（１６Ａ，１６Ｂ）により覆われるシャフトピン（１４）と、シャフトピン（１４）に固定される非磁性体（１９）と、を備える。【選択図】図１
Bibliography:Application Number: JP20170159115