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The electromagnetic valve

A solenoid valve, electromagnetic technology, applied in the field of solenoid valve, can solve the problems of increasing the energization current, the heating of the solenoid coil, etc., and achieve the effect of high efficiency

Active Publication Date: 2021-07-20
SAGINOMIYA SEISAKUSHO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the magnetic efficiency is lowered, it is necessary to increase the energizing current to the electromagnetic coil only by the amount of the decrease, and there is a problem that the electromagnetic coil heats up further.

Method used

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  • The electromagnetic valve
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Embodiment Construction

[0027] Next, an embodiment of the solenoid valve of the present invention will be described with reference to the drawings. In addition, the solenoid valves in the following embodiments are examples of pilot solenoid valves. figure 1 is a longitudinal sectional view of the solenoid valve of the first embodiment when it is not energized, figure 2 yes figure 1 The P-P direction view, image 3 It is a longitudinal sectional view and a plan view of the coil guide in the solenoid valve of the first embodiment. Also, the concept of "up and down" in the following description is the same as figure 1 The upper and lower correspondences in the figure. The solenoid valve of this embodiment has a metal main body 1 , an electromagnetic drive part 2 provided on the upper part of the main body 1 , a coil guide 3 as a "connection part" described later, and an elastic member 4 .

[0028] The main body 1 is, for example, a high-pressure primary joint 1A through which a fluid such as a ref...

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PUM

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Abstract

The present invention provides a solenoid valve capable of reducing temperature rise of a solenoid coil (25). The piston valve (5) is driven to open and close the pilot port (5a) of the piston valve (5) by the pilot valve (22a) at the lower end of the plunger (22) in the electromagnetic drive part (2). A coil guide (3) having an elastic magnetic body is provided on the bottom plate outer case (26B) of the outer case (26) around the electromagnetic coil (25). A coil guide (3) is constituted by a cylindrical portion (31) and a flange portion (32). The inner diameter of the cylindrical part (31) in a natural state is slightly smaller than the outer diameter of the plunger case (21), and the cylindrical part (31) is press-fitted into the outer periphery of the plunger case (21). The flange portion (32) is brought into contact with the base case (26B). An elastic member (4) is provided between the cylindrical portion (31) and the housing support portion (1D).

Description

technical field [0001] The present invention relates to an electromagnetic valve in which a valve body is driven by a plunger inserted into a plunger housing or the like of an electromagnetic drive unit. Background technique [0002] Conventionally, such a solenoid valve is disclosed in, for example, JP-A-2017-62044 (Patent Document 1). In this solenoid valve, a cylindrical portion (plunger case) of an insertion plunger is inserted into an insertion hole at the center of the solenoid coil in the solenoid drive portion. And, the cylindrical part of the lower board (base plate outer case) which is a part of an outer case is inserted in the outer periphery of this cylindrical part. [0003] prior art literature [0004] Patent Document 1: Japanese Patent Laid-Open No. 2017-62044 [0005] Here, the outer case of the electromagnetic driving part is configured to increase the efficiency of the magnetic force circuit generated by the magnetic force generated by the electromagnet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
CPCF16K31/0675
Inventor 丸山纪郎松本昌宏渡边秀刚
Owner SAGINOMIYA SEISAKUSHO INC