Generator

Abstract

The invention discloses a generator, and relates to the technical field of generators. The generator comprises a front end cover, a rear end cover, a stator and a rotor, wherein a slip ring sealing sleeve having a first port and a second port is arranged on the rear end cover; a rotor shaft of the rotor enters an inner cavity of the slip ring sealing sleeve through the first port, and the second port is connected with a regulator; an electric brush of the regulator enters the inner cavity of the slip ring sealing sleeve through the second port; the electric brush is electrically connected witha slip ring of the rotor; a labyrinth structure attached to the rear end cover is arranged at the second port of the slip ring sealing sleeve; the labyrinth structure comprises an inner annular partition plate with inner water permeable openings, and an outer annular partition plate with outer water permeable openings is arranged on the inner annular partition plate at intervals; and the flow guide grooves between the inner water permeable openings and the partition plate and between the outer water permeable openings and the partition plate form a labyrinth water channel. According to the generator, the technical problem of water accumulation in the inner cavity of the slip ring sealing sleeve in the prior art is solved, the water entering in the slip ring sealing sleeve can be effectively drained, and damage caused by internal water accumulation is relieved.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to an alternator for locomotives with waterproof and drainage functions. Background technique [0002] With the rapid development of the automobile industry and the increasing popularity of vehicles, the water environment of vehicle generators in the application process is also more complex. The driving of motor vehicles on roads in harsh water environments, the daily cleaning of vehicles with high-pressure water guns, and the special application environment of some marine engines using alternators all put forward higher requirements for the water protection performance of generators. [0003] The brushes of the regulator in the generator are connected to the slip ring contained in the rotor by the elastic force of the spring, so as to ensure that the rotor can realize the function of rotating the magnetic field, and then realize the external output function of the alternator. T...

AI Technical Summary

Problems solved by technology

If there is an abnormal water film formed on the contact surface between the brush and the slip ring, it will destroy or prevent the formation of the carbon film, which will cause the surface roughness of the slip ring to increase, the brush to wear quickly, the life of the generator will be reduced, and even abnormal high temperature will be caused. Cause slip ring burnout failure, generator function failure

[0004] In the existing technology, the sealing connection between the slip ring seal sleeve, the regulator and the generator casing is realized by mutual bonding and adding a gasket at the bonding point. Usually, the generator is a long-term continuous high-temperature operating part, and each Components are greatly affected by temperature shock, and there are differences in the thermal deformation of each part, and the aging of the gasket and other problems will cause gaps in the seal, so that water enters the slip ring sealing sleeve. Once the external water enters the slip ring Difficulty draining inside the ring seal, which could be a hazard to the generator

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