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Magnetic conductance calculation method and stroke valuing method of air gap magnetic conductance type electromagnetic valve

A technology of air-gap magnetic permeability and calculation method, applied in the field of solenoid valve magnetic permeability, can solve the problems of vibration, severe noise, affecting the accuracy and life of the solenoid valve, etc., and achieve the effect of prolonging the action length and improving the linear action performance.

Pending Publication Date: 2021-11-02
杭州群科荟科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The magnetic force between its moving iron and fixed iron is positively correlated with the stroke, resulting in severe vibration and noise, which affects the accuracy and life of the solenoid valve

Method used

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  • Magnetic conductance calculation method and stroke valuing method of air gap magnetic conductance type electromagnetic valve
  • Magnetic conductance calculation method and stroke valuing method of air gap magnetic conductance type electromagnetic valve
  • Magnetic conductance calculation method and stroke valuing method of air gap magnetic conductance type electromagnetic valve

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Experimental program
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Effect test

Embodiment 1

[0046] A permeance calculation method for an air-gap permeance solenoid valve, such as figure 1 , 2 As shown, it includes an air gap magnetic conductance solenoid valve, the solenoid valve includes a fixed iron 1 and a moving iron 2 that move relatively axially, the moving iron 2 is columnar, the fixed iron 1 is sleeve-shaped, and the moving iron 2 The end is inserted into the fixed iron 1, and the side of the moving iron 2 close to the fixed iron 1 decreases step by step through two steps 3, such as image 3 As shown, the moving iron 2 forms a first extending column 4 and a second extending column 5 through the step 3, the second extending column 5 is thicker at the top and thinner at the bottom, and the fixed iron 1 is provided with a step corresponding to the moving iron 2 3. There is an air gap between the fixed iron 1 and the moving iron 2. The air gap includes the first axial air gap 6 and the second radial air gap 9 corresponding to the first protruding column 4 and th...

Embodiment 2

[0068] Embodiment 2: the difference between this embodiment and embodiment 1 is:

[0069] The generatrix of the second extension column 5 is a curve. The curve is a convex curve.

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Abstract

The invention discloses a magnetic conductance calculation method and a stroke valuing method of an air gap magnetic conductance type electromagnetic valve. The defect that an existing horizontal force acting section is short is overcome. The air gap magnetic conductance type electromagnetic valve comprises fixed iron and movable iron which move in an axial direction, the movable iron is in a columnar shape, the fixed iron is in a sleeve shape, the tail end of the movable iron is inserted into the fixed iron, the diameter of the face, close to the fixed iron, of the movable iron is gradually reduced through two steps, the movable iron is provided with a first extending column and a second extending column through the steps, the second extending column is thicker at top and thinner at bottom, the fixed iron is provided with a step corresponding to the movable iron, air gaps are formed between the fixed iron and the movable iron, the air gaps comprise a first axial air gap and a first radial air gap which correspond to the first extending column and a second axial air gap and a second radial air gap which correspond to the second extending column, and the second radial air gap is thinner at top and thicker at bottom. According to the mode, the acting length of a horizontal force is prolonged, and an improvement space is provided for the electromagnetic valve in need.

Description

technical field [0001] The present invention relates to the magnetic permeance of a solenoid valve, more specifically, it relates to a magnetic permeance calculation method and a stroke value acquisition method of an air-gap magnetic permeance solenoid valve. Background technique [0002] When the solenoid valve is not energized, the spring exerts downward pressure on the moving iron core. There is an air gap at a certain distance between the moving iron core and the fixed iron core. The relationship between the air gap of the magnetic circuit and the strength of the magnetic field is that the air gap increases. , the density of magnetic lines of induction decreases, the magnetic field strength decreases, the air gap decreases, the density of magnetic lines of induction increases, and the magnetic field strength increases. After the solenoid valve is energized, an electromagnetic force of mutual attraction is generated between the fixed iron core and the moving iron core. Th...

Claims

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Application Information

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IPC IPC(8): F16K31/06F16K1/00
CPCF16K31/0655F16K31/0675F16K1/00
Inventor 赵伟李其朋
Owner 杭州群科荟科技有限公司