Stator segments, stator components and cooling systems for stator components

A cooling system and block technology, used in electric components, cooling/ventilation devices, electrical components, etc., can solve problems such as hidden safety hazards, inconvenient maintenance of cooling units, and bearings greatly affected by motor heat, which is beneficial to processing and manufacturing. , The effect of speeding up the cooling cycle and reducing the effect of heat on the main bearing

Active Publication Date: 2021-01-29
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to overcome the disadvantages of inconvenient maintenance of the cooling unit of the direct-drive wind power generator in the prior art, potential safety hazards, and the bearing being greatly affected by the heating of the motor, and to provide a stator block and stator assembly and the cooling system for the stator assembly

Method used

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  • Stator segments, stator components and cooling systems for stator components
  • Stator segments, stator components and cooling systems for stator components
  • Stator segments, stator components and cooling systems for stator components

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Embodiment Construction

[0041] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the described examples.

[0042] see figure 1 , figure 1 Shown is a schematic diagram of a wind turbine according to an embodiment of the invention. A wind turbine includes an annular rotor assembly and an annular stator assembly. The rotor assembly includes a rotor support 4 and rotor poles 44 , and the stator assembly includes a stator support 6 and a plurality of annular segment-shaped stator blocks 5 connected to the stator support 6 . The rotor support 4 is connected to the rotating shaft 3 , and the stator support 6 is connected to the fixed shaft 1 . An air gap is formed between the stator segments 5 and the rotor poles 44 .

[0043] The rotor support 4 comprises disc-shaped first and second rotor end plates 45 , 42 and an annular end plate 43 . In this embodiment, the first rotor end plate 45 is perpendicular to the central axis of the...

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Abstract

The invention discloses a stator block, a stator assembly and a cooling system for the stator assembly. The stator block includes: a block body, the axial side of the block body is provided with a cooling air outlet; a stator core, the The stator core is connected to the radially outer end surface of the block body; the cooling unit is arranged in the block body, wherein the cooling unit introduces the hot air emitted by the stator core, After cooling, it is discharged from the cooling air outlet. The invention improves the assembly efficiency; under the same displacement, the air circulation path is shortened, the cooling circulation speed of the air flow is accelerated, and the cooling effect is improved; the cooling redundant sharing is adopted, and the economic benefit is improved; the maintenance area and electromagnetic The separation of areas improves the safety of generator operation and maintenance, simplifies the structure and facilitates the entry and exit of maintenance personnel, reduces the influence of heat generated in the electromagnetic area on the main bearing, and is beneficial to the processing and manufacturing of stator supports.

Description

technical field [0001] The invention relates to a stator block, a stator assembly and a cooling system for the stator assembly. Background technique [0002] The direct-drive wind turbine is mainly composed of a stator, a rotor, a fixed shaft, a rotating shaft, a braking system, and a cooling unit. According to the rotating parts, it is divided into two types: inner rotor and outer rotor. When the direct-drive wind turbine works normally, a reasonable cooling method must be used to cool key components such as the stator core and magnetic poles of the generator to prevent the unit from failing due to excessive temperature. The commonly used cooling method is: the cooling device guides the cooled airflow through the cavity formed by the rotor house and the stator to the stator core, takes away the heat from the surface of the stator core, and circulates in turn to ensure that the temperature of the generator is controlled at within a reasonable range. [0003] For example, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/08H02K1/18
CPCH02K9/08H02K1/185H02K7/1838H02K1/187H02K1/20H02K9/04Y02E10/72
Inventor 孙永岗金孝龙缪骏崔明卢江跃施杨陈健王海洋
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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