Linear motor primary and traction linear motor

A linear motor, primary technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of poor heat dissipation, small heat dissipation, poor heat dissipation, etc., to increase residence time, improve heat dissipation capacity, reduce The effect of the component

Active Publication Date: 2021-10-01
襄阳中车电机技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most linear motors in rail transit use the way of vehicle running wind to dissipate heat. The heat dissipation is small and the heat dissipation effect is poor. short question

Method used

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  • Linear motor primary and traction linear motor
  • Linear motor primary and traction linear motor
  • Linear motor primary and traction linear motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Figure 1 to Figure 3 An embodiment of the primary stage of the linear motor of the present invention is shown, wherein the primary stage of the linear motor includes a base 1, an iron core assembly 2, and a tooth pressure plate 3, and the iron core assembly 2 includes a radiator 4 and an iron core 5, and the radiator 4 is longitudinally along the iron core 5 Set on the upper surface of the iron core 5, the radiator 4 is provided with a fluid inlet 41 and a fluid outlet 42, the fluid inlet 41 is located in the middle of the radiator 4, and the radiator 4 is provided with a plurality of cross-hole groups 43 and used to connect the cross-through The hole group 43 is a longitudinal channel 44 communicating with the fluid inlet 41 and the fluid outlet 42 . The iron core assembly 2 is clamped from both sides by two tooth pressure plates 3 and installed in the machine base 1 .

[0054] When the linear motor is in primary operation, the radiator 4 is started, and the heat diss...

Embodiment 2

[0074] The linear motor primary of this embodiment is basically the same as that of Embodiment 1, the only difference is that, as Figure 19 As shown, the cross-sections of the block and the slot in this embodiment are not dovetail-shaped, but trapezoidal, and the angle between the two hypotenuses of the trapezoid is α, so that the formed block and slot are regular in shape and easy to process.

[0075] Of course, in other embodiments, it may also be in other shapes, such as a rectangle.

[0076] This embodiment also provides a traction linear motor, which includes the linear motor primary of this embodiment. Since the traction linear motor includes the primary linear motor of this embodiment, it also has the advantages of the primary linear motor described above.

Embodiment 3

[0078] The linear motor primary of this embodiment is basically the same as that of Embodiment 1, the only difference is that, as Figure 20 As shown, the lengths of the chamfer 10 on the radiator 4 and the folded edge 11 on the tooth pressure plate 3 of this embodiment are consistent with the length of the tooth pressure plate 3, and this setting can better prevent the core assembly 2 from vertically The above displacement enhances the overall strength of the core assembly 2.

[0079] This embodiment also provides a traction linear motor, which includes the linear motor primary of this embodiment. Since the traction linear motor includes the primary linear motor of this embodiment, it also has the advantages of the primary linear motor described above.

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PUM

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Abstract

The invention provides a linear motor primary, which comprises a machine base, an iron core assembly and tooth pressure plates, wherein the iron core assembly comprises a radiator and an iron core, the radiator is longitudinally arranged on the upper surface of the iron core along the iron core, a fluid inlet and a fluid outlet are formed in the radiator, the fluid inlet is located in the middle of the radiator, a plurality of transverse through hole groups and a longitudinal channel for communicating the transverse through hole groups with the fluid inlet and the fluid outlet are arranged in the radiator, and the iron core assembly is clamped from two sides through the two tooth pressure plates and then is mounted in the machine base. According to the invention, the structure is simple; the iron core assembly is reasonably designed, so that the problems that in the prior art, heat dissipation of the middle portion of an iron core is difficult, and heat dissipation fluid is not evenly distributed are solved, and the heat dissipation capacity of a machine base is greatly optimized so as to greatly improve the primary high-temperature condition of the whole stator, guarantee that an insulation system works at a normal temperature and prolong the service life of a motor.

Description

technical field [0001] The invention belongs to the technical field of rail transit linear motors, and relates to a linear motor primary and a traction linear motor, in particular to a motor primary and an iron core assembly of a wheel-rail or maglev rail transit linear asynchronous motor. Background technique [0002] At present, traction linear asynchronous motors in the rail transit industry have been widely used in subway vehicles. Because the linear motor vehicle system has the advantages of strong climbing performance and small turning radius, it is widely used in the field of maglev rail transit. [0003] The traction linear asynchronous motor consists of two parts, the stator primary and the induction plate (or induction pole). For the three-phase linear asynchronous motor, the primary is the stator part, which is installed on the vehicle and powered by the on-board traction inverter, and a traveling wave magnetic field in a straight line is formed on the primary. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/02H02K9/02
CPCH02K41/02H02K9/02
Inventor 李伟业黄直峰李奎高扬李益丰罗英露冯守智王禹陈财王宗稳明帅帅雷军
Owner 襄阳中车电机技术有限公司
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