JPH0355975U

JPH0355975U -

Info

Publication number: JPH0355975U
Application number: JP11610089U
Authority: JP
Priority date: 1989-10-02
Filing date: 1989-10-02
Publication date: 1991-05-29
Anticipated expiration: 2004-06-22
Also published as: JPH0623807Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の油浸型ソレノイド
の断面図、第２図は第１図の一部の拡大図、第３
図は第１図のソレノイドに設けられているオリフ
イス部材の断面図、第４図ないし第７図は従来の
ソレノイドのオリフイスの構造を示す図である。１……油浸型ソレノイド、２……固定鉄心、３
……ガイドチユーブ、５……可動鉄心、７……通
路、８……プツシユロツド、９……コイル、１１
……大径部、１２……小径部、１４……端縁、１
５……オリフイス部材、１６……オリフイス、１
７……開口部、１８……円錐面、２０……通路。 Fig. 1 is a sectional view of an oil-immersed solenoid according to an embodiment of the present invention, Fig. 2 is an enlarged view of a part of Fig. 1, and Fig.
This figure is a sectional view of an orifice member provided in the solenoid shown in FIG. 1, and FIGS. 4 to 7 are views showing the structure of the orifice of a conventional solenoid. 1...Oil-immersed solenoid, 2...Fixed iron core, 3
... Guide tube, 5 ... Movable iron core, 7 ... Passage, 8 ... Push rod, 9 ... Coil, 11
...Large diameter part, 12...Small diameter part, 14...Edge, 1
5... Orifice member, 16... Orifice, 1
7...opening, 18...conical surface, 20...passage.

Claims

[Claims for Utility Model Registration] 1. A fixed iron core comprising a fixed iron core to which a guide tube is connected, a coil provided outside the guide tube, and a movable iron core movably disposed within the guide tube. A rod hole penetrating in the axial direction and a passage having a circular cross section are formed in the rod hole, a push rod is movably provided in the rod hole to transmit the movement of the movable iron core to the outside, and an orifice member is press-fitted into the passage. In an oil-immersed solenoid that moves oil into and out of the guide tube through an orifice formed in the orifice member, the passage has a large diameter part and a small diameter part, and the outer periphery of one end of the orifice member is tapered. A conical surface is formed, and the diameter of the open end on the one end side of the orifice formed in the orifice member is made larger than the diameter of the other portion, and the side conical surface is engaged with the edge of the open end of the small diameter portion. An oil-immersed solenoid characterized in that the orifice member is press-fitted into the large diameter portion. 2. A rod comprising a fixed core to which a guide tube is connected, a coil provided outside the guide tube, and a movable core movably disposed within the guide tube, and passing through the fixed core in the axial direction. A hole and a passage are formed, a push rod is movably provided in the rod hole to transmit the movement of the movable iron core to the outside, and a passage with a circular cross section passing through the movable iron core in the axial direction is formed, In an oil-immersed solenoid, an orifice member is press-fitted into the passage of the oil-immersed solenoid to restrict the flow of oil therethrough through an orifice formed in the orifice member.
The passage of the movable iron core is provided with a large diameter part and a small diameter part, and a tapered conical surface is formed on the outer periphery of one end of the orifice member, and an open end of the orifice formed in the orifice member on the one end side is formed. An oil-immersed solenoid characterized in that the diameter is larger than the diameter of other parts, and the orifice member is press-fitted into the large diameter part by engaging the side conical surface with the edge of the open end of the small diameter part. .