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High voltage-resistant permanent magnet-shield high speed switching electromagnet

A high-speed switching and high-pressure-resistant technology, which is applied to valve details, engine components, valve operation/release devices, etc., can solve problems such as excessive magnetic flux leakage of guide sleeves and unfavorable rapid response of electromagnets, so as to avoid self-locking force and good High-speed response performance, the effect of accelerating dynamic response

Inactive Publication Date: 2011-06-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-speed switching electromagnet disclosed above has the disadvantage of more magnetic flux leakage through the middle section of the guide sleeve, which is not conducive to the rapid response of the electromagnet.

Method used

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  • High voltage-resistant permanent magnet-shield high speed switching electromagnet
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  • High voltage-resistant permanent magnet-shield high speed switching electromagnet

Examples

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Embodiment 1

[0035] Embodiment 1, Figure 1 to Figure 5 Combined with a high-voltage permanent magnet shielding high-speed switch electromagnet, it includes a housing 1, a coil frame 2, a control coil 3, a guide sleeve 4, a return spring 5, a push rod 6, a limit piece 7, an armature 8 and a ring Shaped permanent magnet 9. The shell 1, the armature 8 and the guide sleeve 4 are all magnetizers made of high-strength magnetizer.

[0036] The housing 1 is a cylindrical body enclosed by side walls, a bottom 10 and an end cover 11 , and the side walls of the housing 1 and the bottom 10 are fixedly connected. A cavity 40 is provided in the guide sleeve 4 , that is, the guide sleeve 4 is a cylindrical body formed only by a side wall 44 and a bottom, and an outer flange 45 is provided on the top of the side wall 44 . The guide sleeve 4 is set in the housing 1, and the bottom of the guide sleeve 4 is fixedly connected with the bottom 10 of the housing 1 without gap; the outer flange 45 of the guide...

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PUM

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Abstract

The invention discloses a high voltage-resistant permanent magnet-shield high speed switching electromagnet. The high voltage-resistant permanent magnet-shield high speed switching electromagnet comprises a push rod (6) and a shell (1), an armature (8), a guide sleeve (4) and the like which are all magnetic conductors, wherein the outer surface of the guide sleeve (4) is provided with an annular trapezoidal groove (41); the bottom (412) in the centre of the annular trapezoidal groove (41) is provided with an annular permanent magnet (9); an inner cavity (40) of the guide sleeve (4) is provided with the armature (8) which is connected with the guide sleeve (4) in a sliding way; the push rod (6) is fixedly connected with the armature (8) after penetrating through the bottom (10) of the shell (1) and a trapezoidal guide sleeve channel (42); a returning spring (5) is arranged in the trapezoidal guide sleeve channel (42); and one end of the returning spring (5) is pressed against the shell(1) while the other end is pressed against the armature (8). The high voltage-resistant permanent magnet-shield high speed switching electromagnet has the characteristics of capacity of increasing output electromagnetic force and increasing response speed.

Description

technical field [0001] The invention relates to an electric-mechanical conversion mechanism for a switch valve in a fluid control system, in particular to a high-voltage resistant high-speed switch electromagnet. Background technique [0002] As an electro-mechanical conversion device of an electro-hydraulic switch control element, the high-speed switch electromagnet functions to convert the voltage signal given by the PWM control amplifier into an on or off state. Invention patent US6520600 and invention patent US2004178378 disclose a high-speed switch electromagnet with an integrally formed guide sleeve with a special structure; a ring-shaped trapezoidal groove is opened in the middle of the guide sleeve, which is divided into a front section, a middle section and a rear section, and the middle section is The part of the guide sleeve corresponding to the annular groove connects the front section and the rear section as a whole through the middle section. The middle section...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
Inventor 满军丁凡李其朋刘伟笪靖姜红刚
Owner ZHEJIANG UNIV
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