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High-speed electromagnetic valve magnetic circuit calculation method

A high-speed solenoid valve and calculation method technology, applied in the field of solenoid valves, can solve problems that restrict the accurate calculation of common rail systems, etc.

Inactive Publication Date: 2021-01-15
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is necessary to carry out coupling calculation and analysis of electric, magnetic, mechanical, hydraulic and other multi-physics fields in order to accurately predict the dynamic injection characteristics of high-pressure common rail. Patent, which greatly restricts the accurate calculation of the common rail system

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  • High-speed electromagnetic valve magnetic circuit calculation method
  • High-speed electromagnetic valve magnetic circuit calculation method
  • High-speed electromagnetic valve magnetic circuit calculation method

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Embodiment Construction

[0039] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0040] combine Figure 1-4 , a high-speed solenoid valve magnetic circuit calculation method of the present invention, its steps specifically include:

[0041] (1) According to figure 1 Schematic diagram of the structure of the solenoid valve part, the electromagnetic field of the solenoid valve is figure 2 The division of the network topology shown: Analyzing the structural characteristics of the solenoid valve can infer all the possible flow directions of the magnetic field lines in the actual working process of the solenoid valve, including the magnetic field distribution in the magnetic material, and the different magnetic flux leakage when the magnetic material is saturated. situation, the magnetic field distribution in the air gap, and the difference between the radial and axial magnetic field distributions, image 3 is the expression of the divided magn...

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Abstract

The invention aims to provide a high-speed electromagnetic valve magnetic circuit calculation method which comprises the following steps that an electromagnetic field network topology structure of anelectromagnetic valve is divided, an external circuit model part of the high-speed electromagnetic valve is solved, magnetic resistance of each part in an equivalent magnetic network is solved, and alink branch magnetic flux matrix of the magnetic network is calculated; and a loop set matrix of the equivalent magnetic network is listed by utilizing the characteristic that each loop set of a circuit has a link branch only belonging to the loop set, and thus a matrix element magnetic flux matrix is obtained. The high-speed electromagnetic valve magnetic circuit calculation method is provided bythe invention, the eddy current phenomenon of a magnetic material under a high-frequency magnetic field is considered by introducing eddy current resistance and eddy current inductance, so that detailed modeling of the detailed magnetic circuit of the electromagnetic valve is achieved, and the high-speed electromagnetic valve magnetic circuit calculation method is suitable for different types ofhigh-speed electromagnetic actuators driven by electromagnetism.

Description

technical field [0001] The invention relates to a solenoid valve, in particular to a calculation method for a magnetic circuit of a solenoid valve. Background technique [0002] The equivalent magnetic network method allows detailed magnetic circuit division for complex electromagnetic drive components, and has been widely used in the field of motor model development. The patent "a permanent magnet motor modeling and electromagnetic performance calculation method based on magnetic network (application number 201910920662.3)" discloses the modeling method of the stator, rotor and air gap of the permanent magnet motor using the magnetic network and the calculation method of the electromagnetic performance of the motor . The patent "An Equivalent Magnetic Network Analysis Method for a Hybrid Rotor Permanent Magnet Synchronous Motor (Authorization No. CN107565782B)" discloses an equivalent magnetic network analysis method for a hybrid rotor permanent magnet synchronous motor, w...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06G06F30/18G06F30/39
CPCF16K31/0675G06F30/18G06F30/39
Inventor 赵建辉卢相东
Owner HARBIN ENG UNIV