Motor water-cooling structure

Abstract

The invention relates to motors with water-cooling structures, in particular to a motor water-cooling structure, and solves the problem that a traditional motor water-cooling structure is unlikely tomeet the requirements of an offshore semi-direct-drive permanent-magnet wind generator in terms of heat dissipation efficiency and maintainability. The motor water-cooling structure comprises a motorbase; an outer ring of the motor base is sleeved with a water jacket; the water jacket comprises an inner ring plate, an outer ring plate and a rib plate fixed between the inner ring plate and the outer ring plate; the rib plate forms a water way spirally coiled in the axial direction of the water jacket in a space between the inner ring plate and the outer ring plate; each circumference of coiling is a water channel; a partition plate is arranged in a position, located in the middle of the top of the water jacket, of the water way; the outer ring plate of the water jacket is provided with water inlets positioned in the two sides of the partition plate respectively; the two ends of the water way are provided with water outlets respectively; each water channel of the water way is provided with a drainage hole located in the outer ring plate at the bottom of the water jacket; the drainage holes are connected with drainage pipes; and screw plugs are screwed at the end parts of the drainage pipes. The motor water-cooling structure is particularly suitable for the offshore semi-direct-drive permanent-magnet wind generator and can also be used in other motors.

Description

technical field [0001] The invention relates to a motor with a water-cooling structure, in particular to a motor with a water-cooling structure. Background technique [0002] At present, wind power generation is gradually shifting from land to coastal and offshore wind farms. Due to the harsh offshore environment and short maintenance window, offshore semi-direct drive permanent magnet wind turbines are high-power models with compact size, high power density, and high efficiency. As the main development direction, the heat dissipation requirements of the motor are strict. Offshore semi-direct drive permanent magnet wind turbines have high requirements for hoisting conditions, and the air-cooled structure has a large volume and low heat dissipation efficiency. In order to reduce the weight of the generator and reduce the cost of hoisting, the stator of the offshore semi-direct drive permanent magnet wind turbine adopts a water-cooled heat dissipation structure , improve heat...

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problem that the traditional motor water cooling structure is difficult to meet the requirements of the offshore semi-direct drive permanent magnet wind power generator in terms of heat dissipation efficiency and maintainability, and provides a motor cooling structure, which is suitable for the offshore semi direct drive permanent magnet wind power generator , can also be used in other motors

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