Electromagnetic valve

Abstract

The invention provides an electromagnetic valve where a high coupling strength between a valve portion and a solenoid portion can be secured simply at a low cost without large-sizing the solenoid portion. Recessed portions 21b which are positioned on one end side of a valve body 21 and whose inner wall faces formed by inclining faces 21c which incline from the one end side of the valve body 21 to the other end side towards its depth are provided on a valve body 21 side face positioned on one end side of the valve body 21 so as to be opposed to each other, while cuttings 11a for forming caulking pieces 11b are provided at positions corresponding to the recessed portions 21b on the side wall positioned on an opening side of a magnetic case 11, and the valve portion 20 and the solenoid portion 10 are coupled to each other in the state where they have been biased in directions in which they are fitted to each other by causing the caulking pieces 11b to abut on the inclining faces 21c of the recessed portions to caulk them in the recessed portions.

Description

technical field [0001] The present invention relates to a solenoid valve formed of a solenoid part and a valve part, and particularly relates to a solenoid valve having a structure suitable for downsizing. Background technique [0002] Conventionally, the above-mentioned solenoid valve is known as disclosed in Japanese Patent Application Laid-Open No. 06-071980. The solenoid valve consists of: a coil frame with a coil wound in a cover with an open end and a magnetic frame, a fixed iron core installed in the center hole of the coil frame, a magnetic plate arranged at one end side of the coil frame, and a slidable A moving iron core inserted into the center hole of the bobbin and the magnetic plate, and a solenoid part provided inside with a return spring for returning the moving iron core to an initial position, and a plurality of ports in the valve main body communicate with these ports The valve seat in the passage, and the valve part with the valve body built in to open a...

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned conventional solenoid valve needs to have a complex structure in which the elastic force generated by the plate spring acts on the joint between the claw and the joint window when the solenoid part and the valve part are combined, so the overall size is large and the cost is high. increase, and the assembly of the valve portion is performed simultaneously with the assembly of the solenoid portion, so there is a concern that these operations must be performed correctly at the same time

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