Unlock instant, AI-driven research and patent intelligence for your innovation.

Electromagnetic valve

A solenoid valve and spool technology, applied in the hydraulic field, can solve problems such as valve output characteristics and adverse effects on work efficiency

Pending Publication Date: 2021-02-23
BOSCH REXROTH (CHANGZHOU) CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the electromagnetic force cannot keep up, the valve core cannot open the port smoothly, which will have adverse effects on the output characteristics and working efficiency of the valve.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electromagnetic valve
  • Electromagnetic valve
  • Electromagnetic valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to help those skilled in the art to accurately understand the subject matter claimed in the present application, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings.

[0029] figure 1 A solenoid valve according to one embodiment of the application is shown. see figure 1 (a), the solenoid valve includes a valve body 10 and a valve core 30 . The valve body 10 includes at least an inlet 11 and a first connection port 21 and a second connection port 22 as outlets. The first connection port 21 and the second connection port 22 are respectively provided on each side of the inlet 11 . The spool 30 passes inside the valve body 10 and moves relative to the valve body 10 , that is, the ports 11 , 21 , 22 through the actuating member 40 described below, so as to control the opening and closing of the valve. As shown in the figure, the valve core 30 is provided with a sealing por...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an electromagnetic valve. A valve element of the electromagnetic valve is driven by an actuating component to move relative to a valve body. The actuating component comprises amovable iron core and a static iron core. At least one part of the static iron core is formed into a sleeve, a cavity for receiving the movable iron core is formed in the sleeve, and the cavity is provided with a near end which is formed in the axial direction of the valve element and is close to the valve element, and an opposite far end. The circumferential wall of the sleeve comprises, in theaxial direction, a first part adjacent to the near end, and a magnetic isolation element, the first part comprises a protrusion extending toward the far end to be attached to the magnetic isolation element, and the protrusion is structured to have a wedge-shaped cross section, and has a minimum radial length H and an axial length L away from the end face of the near end. The defined minimum radiallength H and axial length L are beneficial to the electromagnetic force generated by the actuating component.

Description

technical field [0001] The present application belongs to the field of hydraulic pressure, and in particular relates to a solenoid valve. Background technique [0002] A solenoid valve is an industrial device that uses electromagnetic control. The spool moves under the control of electromagnetic force, which can change the opening and closing state of the valve, the flow direction, flow rate, speed or other parameters of the fluid medium. Take changing the opening and closing state of the valve as an example. In one example, the valve core is in a static state when no power is applied, and there is no communication between the ports of the valve. Once energized, the spool moves in a predetermined direction under the action of electromagnetic force, and opens the port, so that the fluid medium from the inlet flows into the opened port. When the electromagnetic excitation is cut off, the valve core returns to the position in the static state, and the valve body is closed. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06
CPCF16K31/0668F16K31/0675
Inventor 李瑞锋胡启辉陆文程
Owner BOSCH REXROTH (CHANGZHOU) CO LTD