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High voltage-resisting bi-directional linear force motor with low-power consumption

A bidirectional linear, high-voltage resistant technology, applied in the direction of electrical components, electromechanical devices, electromagnets, etc., can solve the problems that the power consumption of linear force motors cannot be effectively suppressed, and the output displacement-force characteristics of force motors are nonlinear, etc., to achieve Improved magnetic energy utilization, high power/weight ratio, and reduced non-working air gap

Inactive Publication Date: 2007-08-08
ZHEJIANG UNIV +1
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Problems solved by technology

However, the output displacement-force characteristic of the existing force motor structure such as the MOOG direct-acting servo proportional valve is seriously nonlinear. In order to overcome the nonlinearity, the non-working air gap in the structure is generally large, and part of the input energy is stored in the non-working gas. The power consumption of the linear force motor cannot be effectively suppressed because the internal gap does not act externally.

Method used

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  • High voltage-resisting bi-directional linear force motor with low-power consumption
  • High voltage-resisting bi-directional linear force motor with low-power consumption
  • High voltage-resisting bi-directional linear force motor with low-power consumption

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with drawings and embodiments.

[0025] As shown in Figure 1, the present invention includes a magnetic sleeve 10, two end caps 1, 2 installed in the holes at both ends of the magnetic sleeve 10, and two end caps 1, 2 installed in the magnetic sleeve 10 and the two end caps 1, 2 holes A basin-shaped pole shoe part composed of an armature 9 with output push rods 18 at both ends; the output push rods 18 at both ends of the armature 9 are respectively supported in the end covers 1 and 2 in the form of support sleeves 11 and 12, and the armature 9 and the magnetic sleeve 10 A radial gap is formed; the inner end faces of the two end covers 1 and 2 are respectively equipped with stoppers 15 and 16 made of non-magnetic materials, and the two ends of the armature 9 form axial gaps with the stoppers 15 and 16 respectively; the armature 9 The output push rods 18 at both ends are respectively supported in the end...

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Abstract

The invention discloses one low power and anti-high voltage linear motor, which adopts special designed conductive magnetic cover, armature iron and end cover basin shoe parts, wherein, the magnetic conductive cover is orderly set with yoke iron, permanent part, yoke iron with two permanent axis filled with magnetic part; the yoke iron and permanent part, end cover and shell form ring space filled with co-center spiral tube control coil; the permanent magnetic part generates electrode magnetic field and control coil overlap.

Description

technical field [0001] The invention relates to an electro-mechanical conversion mechanism for a proportional valve and a servo valve in a fluid control system, in particular to a low-power consumption high-voltage resistant bidirectional linear force motor. Background technique [0002] As an electromechanical conversion mechanism, the traditional proportional electromagnet is widely used in electro-hydraulic proportional valves, but its control current is often large and consumes a lot of power, which is difficult to meet the requirements of energy saving and easily leads to an increase in coil temperature. As the electro-mechanical conversion mechanism of electro-hydraulic proportional valves and servo valves, the linear force motor uses permanent magnets to generate polarized magnetic fields. Compared with traditional proportional electromagnets, it effectively reduces the power consumption of the electro-mechanical conversion mechanism. The typical linear force motor str...

Claims

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Application Information

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IPC IPC(8): H02K33/16H01F7/16
Inventor 李勇丁凡翁振涛李其朋
Owner ZHEJIANG UNIV
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