Linear motor of communicated magnetic circuit

A technology of linear motors and magnetic circuits, applied in the direction of static components of magnetic circuits, magnetic circuit shape/style/structure, electrical components, etc., can solve the problem of increasing the additional running resistance and additional loss of linear motors, reducing the effective output of linear motors, and affecting Linear motor efficiency and performance issues, to achieve the effect of reducing electromagnetic pollution, improving power utilization, and improving power factor

Inactive Publication Date: 2011-02-02
赵勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The end effect increases the additional running resistance and additional loss between the primary and secondary of the linear motor, reduces the effective output of the linear motor, and seriously affects the efficiency and performance of the linear motor

Method used

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  • Linear motor of communicated magnetic circuit
  • Linear motor of communicated magnetic circuit
  • Linear motor of communicated magnetic circuit

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] figure 1 It is a schematic diagram of the principle of a transformer. A transformer is a static electrical appliance that uses electromagnetic induction to transfer AC power of one voltage and current into another voltage and current of the same frequency. The most important components in the transformer are the first and second iron cores 11 and 12 and the first and second windings 13 and 14, which constitute the body of the transformer. The iron core of the transformer is not only the magnetic circuit, but also the skeleton of the package winding. The iron core is composed of two parts, the core column and the iron yoke. The core column is used to cover the winding, and the iron yoke connects the core columns to form a closed magnetic circuit. In order to reduce core loss, the core is made of silicon steel sheets with a thickness of 0.30-0.35 mm, a...

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PUM

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Abstract

The invention relates to a linear motor of a communicated magnetic circuit. The linear motor comprises a primary winding (31) and a secondary winding (32). The linear motor is characterized in that: the primary winding (31) is a closed magnetic circuit and comprises at least one primary magnetic circuit (34) and at least one communicated magnetic circuit (35); the primary magnetic circuit (34) and the communicated magnetic circuit (35) are connected to form the closed magnetic circuit; a leakage flux induction coil winding (33) is wound on the communicated magnetic circuit (35); and a linear motor primary winding (36) is wound on the primary magnetic circuit (34). The linear motor of the communicated magnetic circuit can reclaim the leakage flux loss of the longitudinal end effect of the linear motor, improves the power factor, improves the utilization rate of electrical energy and reduces electromagnetic pollution caused by the end effect of the linear motor due to open magnetic circuit.

Description

technical field [0001] The invention relates to the technical field of linear motors, in particular to a linear motor with magnetic circuit communication. Background technique [0002] Linear motors are considered to be the most promising power devices for linear transportation systems. Due to the structure of the linear motor itself, there are longitudinal end effect losses caused by the disconnection of the magnetic circuit and a large operating air gap between the primary and secondary. These two reasons have caused the low energy utilization rate of linear motors, which has led to the fact that linear motors cannot be widely used in the transportation field since their invention 100 years ago. At present, the actual efficiency of the unilateral linear induction motor in the urban light rail system is only about 30% (theoretical efficiency is 0.75, and the output thrust is 40%). Compared with the rail transit driven by the traditional rotary motor, the rail transit drive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K41/02
Inventor 赵勇
Owner 赵勇
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