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Commutator cooling device

A cooling device and commutator technology, applied in cooling/ventilation devices, electromechanical devices, electrical components, etc., can solve the problems of reducing service life, reducing dust blocking performance, dust erosion, etc., and achieving the effect of improving blocking performance

Active Publication Date: 2016-09-28
JIANGSU ANCHOR TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The rotor rotates inside the stator. In the prior art, a commutator is installed at one end of the rotor, and a fan is installed at the other end of the rotor. Although the setting of the fan can reduce the temperature inside the stator, the temperature at the commutator end is still high, and some dust particles Erosion of the motor commutator and the surface of the wire package reduces the service life, so now some commutators will add a fan structure on the outer ring to cool down and block dust
However, due to the temperature change on it, the blades of the fan often have gaps between the blades due to cold shrinkage, thereby reducing the blocking performance for dust.

Method used

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Embodiment Construction

[0015] Combine below Attached picture Preferred embodiments of the present invention will be described in detail.

[0016] as shown in the picture 1-2 As shown, in the present invention A commutator cooling device In some of the embodiments, the insulating gasket 1 is included, and the insulating gasket 1 has a fan structure added along its outer peripheral surface. The fan structure includes a plurality of fans 2 and cooling holes 3, and the plurality of fans 2 are evenly distributed on the insulating gasket. On the outer circumference of 1, heat dissipation holes 3 are formed between adjacent fans 2, and the outer sides of multiple fans 2 are integrally connected to form a circle 4, the top surface 22 of the blade 21 of the fan 2 is an arc surface, and the bottom surface 23 is a wave The transition between the top surface 22 and the bottom surface 23 of the blade 21 is through a chamfered surface 24 . In the commutator cooling device provided by this embodiment, in the...

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Abstract

The invention discloses a commutator cooling device, comprsing an insulating washer, wherein the insulating washer is added with a circle of fan structure along the external circumferential surface of the insulating washer; the fan structure includes a plurality of fans and heat vents; the plurality of fans are evenly distributed on the external circumferential surface of the insulating washer; the heat vents are formed between adjacent fans; the external sides of the plurality of fans are connected into a circle; each blade of the fans has an arc-shaped top surface and a wave-shaped bottom surface, and a chamfered surface is arranged for transition between the top surface and the bottom surface. According to the invention, since the top surface of each blade of the fans is arranged to be arc-shaped and the bottom surface is arranged to be wave-shaped, when chilling shrink happens, the arc-shaped surfaces can absorb part of deformation and the wave-shaped bottom surfaces enable the fans to reset rapidly at the same time, which functions as springs, so that the blades of the fans can reset rapidly in the case of deformation, thus effectively improving the dust blocking performance of the fans.

Description

technical field [0001] The invention relates to the field of commutators, in particular to a commutator cooling device. Background technique [0002] The rotor rotates in the stator. In the prior art, a commutator is installed at one end of the rotor, and a fan is installed at the other end of the rotor. Although the setting of the fan can reduce the temperature inside the stator, the temperature at the commutator end is still high, and some dust particles Erosion of the motor commutator and the surface of the wire package reduces the service life, so now some commutators will add a fan structure on the outer ring to cool down and block dust. However, due to temperature changes thereon, the blades of the fan often have gaps between the blades due to cold shrinkage, thereby reducing the blocking performance for dust. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a commutator cooling device that can effecti...

Claims

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Application Information

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IPC IPC(8): H02K9/28
CPCH02K9/28
Inventor 周海春
Owner JIANGSU ANCHOR TOOLS
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