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A current collector for a motor

A current collecting device and collector ring technology, which is applied in electromechanical devices, cooling/ventilation devices, electrical components, etc., can solve the problems of being unable to carry high voltage and high current, failing to meet the requirements of heat dissipation, and poor heat dissipation. Achieve the effects of improving heat dissipation effect, simple manufacturing process, and improving heat dissipation efficiency

Active Publication Date: 2018-08-07
DONGFANG ELECTRIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing current collecting device is used in the speed-adjustable hydro-generator, its heat dissipation cannot meet the requirements at all, the heat dissipation effect is poor, and it cannot carry high voltage and high current.

Method used

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  • A current collector for a motor
  • A current collector for a motor
  • A current collector for a motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment includes three collector rings 3, a rotating shaft 2, six rib plates 7, a lower support plate 5 and an upper splint 11, a tension bolt 1, an insulating spacer 9, a carbon brush 5, a brush holder 8 and a flow guide copper The row 6 and the rib plate 7 are welded on the rotating shaft 2, the plurality of collector rings 3 are axially concentric (the centers of each collector ring are on the same axis), and the axial weight is borne by the lower support ring plate 11. After the tension bolt 1 is covered with an insulating sleeve, it passes through the upper splint 11, the insulating spacer 9, the collector ring 3 and the lower support plate, and the upper splint 11, the insulating spacer 9, the collector ring 3 and the lower support plate 5 are connected as a whole, and there is a gap between each collector ring 3, and the distance of the gap is the same, and the tension bolt 1 and the collector ring 3 realize insulating contact through an insulating sleeve....

Embodiment 2

[0034] This embodiment includes four collector rings 3, rotating shaft 2, four rib plates 7, lower support plate 5 and upper splint 11, tension bolt 1, insulating spacer 9, carbon brush 5, brush holder 8 and diversion copper The row 6 and the rib plate 7 are welded on the rotating shaft 2, the plurality of collector rings 3 are axially concentric (the centers of each collector ring are on the same axis), and the axial weight is borne by the lower support ring plate 11. The tension bolt 1 and the screw part of the collector ring foundation are wound with an insulating material layer and pass through the upper splint 11, the insulating spacer 9, the collector ring 3 and the lower support plate, and the upper splint 11, the insulating spacer 9, The collector rings 3 and the lower support plate 5 are connected as a whole, and gaps are provided between each collector ring 3 , and the gap distances are the same. The tension bolt 1 and the collector ring 3 are insulated and contacted ...

Embodiment 3

[0040] This embodiment includes five collector rings 3, a rotating shaft 2, three rib plates 7, a lower support plate 5, an upper splint 11, a tension bolt 1, an insulating spacer 9, a carbon brush 5, a brush holder 8 and a flow guide copper The row 6 and the rib plate 7 are welded on the rotating shaft 2, the plurality of collector rings 3 are axially concentric (the centers of each collector ring are on the same axis), and the axial weight is borne by the lower support ring plate 11. After the tension bolt 1 is covered with an insulating sleeve, it passes through the upper splint 11, the insulating spacer 9, the collector ring 3 and the lower support plate, and the upper splint 11, the insulating spacer 9, the collector ring 3 and the lower support plate 5 are connected as a whole, and there is a gap between each collector ring 3, and the distance of the gap is the same, and the tension bolt 1 and the collector ring 3 realize insulating contact through an insulating sleeve. ...

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PUM

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Abstract

The invention discloses a current collector for a motor, which is characterized in that it comprises a collector ring, a rotating shaft, a rib plate, a lower support plate and a connecting piece, the number of the collector rings is at least three, and the collector rings are arranged parallel to each other and The center of the collector ring is located on the same axial line, the rib plate is fixed on the rotating shaft, the lower support plate is fixed on the rotating shaft, the rotating shaft passes through the collector ring, and the collector ring is connected to the lower support through a connector On the plate, a gap is provided between each collector ring, and the inner diameter of the collector ring is larger than the radial length of the rib. The invention has the ability to carry high AC voltage and high current, good ventilation and heat dissipation, reliable insulation performance, and can remarkably prolong the service life of collector rings and electric brushes.

Description

technical field [0001] The invention relates to a power collecting device for a motor, in particular to a power collecting device for a generator or a generator motor. Background technique [0002] In conventional fixed-speed hydro-generators, the synchronous speed of the motor is coupled with the power supply frequency of the power grid. Correspondingly determines the operating point of the turbine. When the hydraulic head amplitude changes, it is difficult for the turbine to achieve optimal operating performance. [0003] The speed-adjustable hydro-generator realizes the flexible connection between the motor speed and the power supply frequency. By changing the frequency of the alternating current fed into the multi-phase collector system, the unit can run at variable speed within a certain range. When the unit is running, the rotor side of the motor also needs to transfer energy to the power grid through the power collection system and external converter. In existing f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K13/00H02K9/28
Inventor 骆林刘健俊陈玉红
Owner DONGFANG ELECTRIC MACHINERY
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