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Suspension structures

一种支撑结构、构件的技术，应用在磁路形状/式样/结构、机电装置、机壳/外罩/支承物等方向，能够解决制造昂贵、难装配、效率低等问题

Active Publication Date: 2012-11-28
GE ENERGY POWER CONVERSION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing designs of support structures using springs are often inefficient, complex, expensive to manufacture, and difficult to assemble

Method used

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  • Suspension structures
  • Suspension structures
  • Suspension structures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] refer to image 3 and Figure 4 A stator assembly 1 for a rotating electric machine, such as a motor or generator, comprises a radially inner surface 2 comprising a plurality of circumferentially spaced slots 4 for receiving coils (not shown) of a stator winding.

[0059] The outer support frame is located outside the stator assembly 1 . The support frame comprises an annular structural member 6, a cylindrical outer shell 8 and annular end plates 10a, 10b. Each axial end of the stator assembly 1 is image 3 The four discrete mounting locations 12a-12d shown are indirectly connected to the annular structural member 6 of the outer support frame. The mounting locations 12a-12d are equally spaced around the circumference of the stator assembly 1 . It should be understood that the number of mounting locations, each individual location and their angular spacing depends on the structure of the stator assembly and / or the outer support frame.

[0060] Each mounting location...

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PUM

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Abstract

A support structure is used to mount the stator of a rotating electrical machine (e.g. a motor or generator). The support structure includes a rigid external support frame (6). To minimise the transmission of vibrations caused by stator electromagnetic forces into the external support frame (6), at least one sandwich anti- vibration mount (14a) is secured between the external support frame (6) and a part of the stator (28). The mount (14a) is oriented relative to the stator such that it experiences compression loading in a substantially tangential direction of the stator and radial shear loading in a substantially radial direction of the stator during operation of the rotating electrical machine. The sandwich anti-vibration mount (14a, 14b) is pre-loaded with a predetermined compression load substantially along its compression axis (Ac). The mount (14a) has a high stiffness characteristic Kc for compression loading and a stiffness characteristic Krs for radial shear loading that is substantially zero, or even negative. The mount (14a) will therefore restrain tangential deflection of the stator while still achieving a low-stiffness suspension in the radial direction.

Description

technical field [0001] The present invention relates to suspension structures and in particular to structures for supporting a stator of a rotating electrical machine such as a motor or generator. Background technique [0002] Stator assemblies for rotating electrical machines are usually mounted to an external support frame. Magnetostrictive forces acting on the stator assembly create vibration modes in the radial direction (sometimes referred to as "stator electromagnetic forces") that can cause large forces to be transmitted to the support frame. These vibrations in turn cause the support frame to emit noise In many situations, it is desirable to minimize the level of noise emitted by the stator assembly. For example, a cruise ship may wish to sail into environmentally sensitive areas, and environmental research vessels, fishing research vessels, or naval vessels, etc. may wish to minimize noise at all times . [0003] The amount of vibration transmitted to the support ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/24H02K1/18
CPCH02K1/185H02K5/24
Inventor S·I·布兰德里G·D·雷弗雷姆
Owner GE ENERGY POWER CONVERSION TECH