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Moving-iron type linear motor coil array power-driven allocation method

A linear motor and coil array technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problem of increasing the number of power drivers, reduce the number of power drivers, realize large-stroke linear motion, and ensure the effect of normal work

Active Publication Date: 2011-10-26
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the moving iron type linear motor studied in the present invention, if the stroke length is to be lengthened, the stator coil must increase with the increase of the stroke, thereby causing an increase in the number of power drivers used to drive the coil. an expensive fee

Method used

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  • Moving-iron type linear motor coil array power-driven allocation method
  • Moving-iron type linear motor coil array power-driven allocation method
  • Moving-iron type linear motor coil array power-driven allocation method

Examples

Experimental program
Comparison scheme
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Embodiment

[0045] refer to figure 1 , 4. Demonstrate the transition process of the mover 1 driving distribution state during the movement, so as to further understand the present invention.

[0046] The maximum speed V of the mover 1 movement max =1m / s, the maximum switching time T=0.1ms for the stator coil array 6 to turn on or off the driver through the switch device 8, according to the calculation formula of the width of the transition state area 4 L≥V max *T, take L=30mm.

[0047] Under the premise of ensuring that the electromagnetic interaction between the covering coil under the mover magnetic steel array 2 and the magnetic steel array will not produce edge effects, the working state area 3 takes the maximum size around the covered coil, that is, the length of the working state area 3 along the moving direction is 60mm . The inner frame of the transition state area is consistent with the size of the working state area, and the inner frame of the transition state area expands th...

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Abstract

The invention relates to a moving-iron type linear motor coil array power-driven allocation method, which comprises the steps of; dividing a rectangular stator coil array of a moving-iron type linear motor into n partition areas, wherein each partition area is divided into an operating condition area and a transition condition area; determining and the total number of power drivers according to the number of coils in each partition area to form a driver array; and connecting the driver array with the stator coil array through a switchgear, and ensuring that each driver is connected with the coil at the corresponding position in each partition area through the switchgear. The method determines the coverage area of the coil array according to a position at which a rotor magnetic steel arrayis positioned, and controls the on / off and the current of the coils by utilizing the limitation of the transition condition area so as to realize the large stroke linear motion of the rotor. The method can solve the problems of complex structure and expensive total cost of driver equipment which are caused by excessive drivers caused by multiple number of the stator coils.

Description

technical field [0001] The invention relates to a connection method between a moving iron linear motor coil array and a driver, in particular to a driver distribution method. Background technique [0002] A linear motor is a motor that converts electrical energy into mechanical energy for linear motion without any intermediate conversion device. It changes the traditional intermediate conversion system such as chains, wire ropes, conveyor belts, and rack screws in the past, and overcomes the defects of long transmission chains, large volumes, low efficiency, and poor precision of traditional mechanical conversion mechanisms. It has large starting thrust and transmission stiffness. High, fast dynamic response, high positioning accuracy, unlimited stroke length and other advantages. Its application range is very wide, such as machine tool work, train drive, material delivery, automatic plotter, household appliances, semiconductors, etc. As far as the structure of the linear ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K41/02
CPCH02K41/02
Inventor 朱煜胡金春廖凯汪劲松尹文生杨开明张鸣徐登峰段广洪张利
Owner TSINGHUA UNIV