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Slip ring and lead fixing structure for inverted dynamic braking wound rotor motor

A winding motor and energy-consumption braking technology, which is applied in the direction of electrical components, electromechanical devices, etc., can solve the design problems of winding motor slip ring and lead wire fixing, etc., and achieves ingenious structural concept, obvious effect and reasonable design Effect

Inactive Publication Date: 2013-02-13
SEC ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Wound motor has outstanding advantages, but the design of slip ring and lead wire fixing of wound motor is a difficult problem

Method used

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  • Slip ring and lead fixing structure for inverted dynamic braking wound rotor motor
  • Slip ring and lead fixing structure for inverted dynamic braking wound rotor motor

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Embodiment Construction

[0019] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] Such as figure 1 , figure 2 As shown, the present invention includes slip ring bushing 1, latitude-free tape 2, polyesterimide film 3, conductive ring 4, conductive rod 5, flat nut 6, bolt 7, shaft 8, steel sleeve 9, lead wire conductive row 10 , Epoxy plate spacer 11, mica tape 12, stop washer 13.

[0021] The slip ring insulation cancels the traditional structure of "epoxy board wrapping or epoxy glass cloth pipe". The outer surface of the slip ring bushing 1 is knurled. The polyesterimide film 3 is flat-wrapped, and then the latitude-free tape 2 is continued to be bound. After the latitude-free tape 2 is cured, the outer circle of the car is guaranteed to ensure the size and shape tolerance, and then the conductive rings 4 are covered, and the latitude-free tape 2 is used for binding between each conductive ring 4. And dip the...

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PUM

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Abstract

The invention provides a slip ring and lead fixing structure for an inverted dynamic braking wound rotor motor. The outer surface of a slip ring bushing is subjected to knurling processing; the outer surface of the slip ring bushing is firstly bound with weftless tapes, is flatly coated with a polyester-imide thin film and then is continuously wound with the weftless tapes; and after being cured, the weftless tapes are sleeved with a conducting ring. A conducting rod is connected with the conducting ring by fine threads; and the tail end of the conducting rod is fastened by a flat nut. The conducting rod and a lead conducting bar are connected with by a bolt and then are integrally coated with an insulator. The conducting rod is coated with a mica tape and is processed into a required size after being cured. The surface of a shaft is subjected to groove milling; after a steel sleeve is sleeved at the position of a bearing guard in a hot manner, the size of the bearing guard is processed as required; after being inserted, the lead conducting bar is pressed by an epoxy board cushion block; and the surface of the epoxy board cushion block is fixed by the weftless tapes. According to the invention, by changing a slip ring insulation, lead connection and lead fixing structure, the effects of strengthening the strength of a slip ring and improving the fixed connection reliability of a lead are achieved and the motor is safely and reliably ensured when the motor is reversely or dynamically braked and the rotating speed is rapidly reduced.

Description

technical field [0001] The invention relates to a motor slip ring and a lead wire fixing structure, in particular to a slip ring and a lead wire fixing structure capable of ensuring safe use of a three-phase asynchronous winding motor under reverse braking or energy consumption braking working conditions. Background technique [0002] Wound motors have outstanding advantages, but the design of slip rings and lead wire fixing of wound motors is a difficult problem. For motors with reverse braking or dynamic braking, the motor speed is reduced from rated to zero in a short period of time, and the safety and reliability of slip rings and lead wire fixing structures are more important. [0003] Reverse connection braking refers to switching any two phases of the power lines of the stator winding of the running motor, then the phase sequence of the stator current changes, and the rotating magnetic field generated by it immediately reverses, and the electromagnetic braking when th...

Claims

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Application Information

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IPC IPC(8): H02K13/02
Inventor 陈平曦孙凯
Owner SEC ELECTRIC MACHINERY
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