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Rotary apparatus

A technology of rotating devices and rotating shafts, which is applied in the direction of electromechanical devices, cooling/ventilating devices, magnetic circuit rotating parts, etc., can solve problems such as large noise, and achieve the effect of suppressing excessive noise and good cooling effect

Inactive Publication Date: 2014-08-27
SHINKO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the above-mentioned structure, a large noise may be generated at a specific rotation speed due to Helmholtz resonance phenomenon

Method used

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Examples

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Embodiment Construction

[0037] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0038] figure 1 It is a side cross-sectional view showing the generator 1 as the rotating device according to the embodiment of the present invention. used to illustrate the prior art Figure 12 as well as Figure 13 Parts common to the illustrated rotating device 501 are described using the same reference numerals.

[0039] return figure 1 The generator 1 is connected to an engine 2 as an external device, and is configured to be able to generate electricity using the output of the engine 2 . In addition, the generator 1 can also be used as a load device for the engine 2, can also be used for output measurement of the engine 2, and can be applied to characteristic evaluation of the engine 2 under various conditions. In addition, when used for such an application, the external device is not limited to the engine 2 , and the external device can be changed to various...

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PUM

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Abstract

The invention provides a rotary apparatus which possesses good cooling effect and can restrain generation of too much noise depending on rotary speed. The rotary apparatus is provided with a rotary shaft (5). The rotary shaft is provided with a rotor core (4A) on the periphery and is born by a bearing (12) to rotate. The rotary apparatus comprises a first flow path (6) which is arranged on the periphery of one end (5b) from the other end (5a) along a center line (X); and a second flow path (7) which is roughly orthogonal to the first flow path at a connecting part (C). The connecting part (C) is arranged in the first flow path on the periphery of another end; the second flow path opens to the outside of the rotary shaft; the total of the flow path area (A1) from the end (5a) of the rotary shaft to the first flow path (6) at the junction between the first flow path (6) and the connecting part (C) and the flow path area (A21)-(A23) of the second flow path (7) at the junction between the second flow path (7) and the connecting part (C).

Description

technical field [0001] The present invention relates to rotating devices such as electric motors and generators. Background technique [0002] Conventionally, many rotating devices are known as rotating devices such as electric motors and generators. For such rotating devices, as high performance such as high rotational speed and high output is required, countermeasures against heat generation become more important. Therefore, a proposal such as Patent Document 1 below provides a rotating device capable of cooling by its own rotation without adding a special device. [0003] The rotary device described herein generally becomes Figure 12 structure shown. This rotating device is configured as a generator 501 connected to an output shaft 21 of the engine 2 . Specifically, a stator 3 having a stator core 3A and a coil 3B is arranged inside the casing 11 , and a rotor 504 is arranged inside the stator 3 . The rotor 504 has a shaft 505 rotatably supported by the casing 11 via...

Claims

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Application Information

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IPC IPC(8): H02K9/02
CPCH02K1/32H02K9/00H02K9/04
Inventor 近藤弘之
Owner SHINKO ELECTRIC CO LTD