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The electromagnetic valve

A technology of solenoid valve and valve core, applied in the field of solenoid valve, can solve the problems of long sleeve and complicated processing steps of the sleeve, etc.

Active Publication Date: 2022-07-01
伊格尓工业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the sleeve is formed long in the axial direction, and the steps of processing the sleeve are also complicated

Method used

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  • The electromagnetic valve
  • The electromagnetic valve
  • The electromagnetic valve

Examples

Experimental program
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Embodiment

[0045] will refer to Figure 1 to Figure 5 A solenoid valve according to an embodiment of the present invention is described. below, figure 2 The left side of the paper plane will be described as the upper side of the solenoid, while figure 2 The right side on the plane of the paper will be described as the underside of the solenoid. have to be aware of is, figure 2 , Figure 4 and Figure 5 The plunger 4, rod 5 and spool 22 shown in are not shown in cross-section, but are shown in side view.

[0046] The solenoid valve 1 is a spool type solenoid valve, and the solenoid valve 1 is used, for example, in a device controlled by the hydraulic pressure of an automatic transmission of a vehicle. It should be noted that the solenoid valve 1 is mounted in a horizontal direction on a component to be mounted (eg, a valve housing) not shown.

[0047] like figure 1 and figure 2 As shown, the solenoid valve 1 is configured such that a valve portion 2, which is a valve configur...

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PUM

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Abstract

Provided is a solenoid valve configured such that the step of machining the sleeve can be simplified and the sleeve can be formed smaller in the radial direction and shorter in the axial direction. The solenoid valve (1) includes: a sleeve (21) configured such that a valve core (22) is axially movably arranged in the sleeve; a fixed iron core (32); a movable iron core ( 4); a solenoid part (3), which is fixed on one end of the sleeve (21) in the axial direction, and which is configured to cause the valve core to move along the axis according to the movement of the movable iron core to move. One end of the sleeve in the axial direction is fixed on the fixed iron core through a swaging process. The sleeve has a groove (21e) provided on the outer circumference of the sleeve on the side of the solenoid portion and a through hole communicating with the groove and the inside (S) of the sleeve (twenty four). A mounting portion (21d) adjacent to the groove in the axial direction is provided at one end of the sleeve in the axial direction. The fixed iron core is provided with a recessed portion (32e) whose axial dimension is larger than that of the mounting portion.

Description

technical field [0001] The present invention relates to a solenoid valve, eg for hydraulic control of a hydraulic circuit. Background technique [0002] The solenoid valve controls the pressure and flow of the fluid in the fluid circuit by using a sliding core that is axially movable by a driving portion for the solenoid valve. As such a conventional solenoid valve, a solenoid valve including a valve core accommodated in a sleeve and a solenoid portion (electromagnetic unit) arranged on one end side of the valve core and operated in the axial direction by a solenoid is proposed. ), and the electromagnetic part is arranged between a pressure source (such as a pump or an accumulator) and the load, wherein the pressure and flow rate of the control fluid supplied to the load side are adjusted according to the movement of the sliding core (for example, refer to Patent Document 1 ). [0003] In the solenoid valve of Patent Document 1, in a state where the end face of the flange ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
CPCF16K31/0655F16K31/0675
Inventor 西村直己岩永弘行
Owner 伊格尓工业股份有限公司