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Inside and outside cooled generator

A generator and cooling technology, applied in the direction of machine/engine, liquid fuel engine, cooling/ventilation device, etc., can solve the problems of poor cooling effect, small air volume, and only cooling

Inactive Publication Date: 2017-01-11
SUZHOU JINDING MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current air-cooling method is mainly to install the fan on the rotor shaft inside the front cover. When the generator is running, the wind enters from the rear cover and flows to the fan through the internal gap of the generator, and then flows out from the ventilation hole of the front cover. Structural problems, on the one hand, the air volume is generally too small, the cooling effect is not good, on the other hand, the air can only flow inside the generator, so it can only cool the internal temperature of the generator, and the cooling effect is affected

Method used

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Embodiment Construction

[0026] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] In order to achieve the purpose of the present invention, as Figure 1-5 As shown, in some embodiments of the internal and external cooling generators of the present invention, a fan 1 is installed on the power output shaft 31 (ie, the rotor shaft) of the generator 3, and after the fan 1 is installed on the power output shaft 31, There is a gap 5 between the generator 3, the fan includes a skeleton 11 and blades 2, a plurality of blades 2 are spirally entered from the outer ring 111 of the skeleton 11 to its center, and the height of the blades 2 is determined by the height of the skeleton 11. The outer ring 111 is gradually lowered towards its center, and the blade 2 forms a central depression 21 on the frame 11 , and the power output shaft 31 is connected in the central depression 21 .

[0028] When the fan 1 rotates, the air in the...

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Abstract

The invention discloses an inside and outside cooled generator, which comprises a generator and a fan arranged on a power output shaft of the generator, wherein the fan is arranged on the power output shaft of the generator; a gap is formed between the fan and the generator; the fan comprises a skeleton and blades; a plurality of blades spirally enter the center from an outer ring of the skeleton; the heights of the blades are gradually reduced from the outer ring of the skeleton to the center thereof; a central concave part is formed on the skeleton through the blades; and the power output shaft of the generator is connected to the inside of the central concave part. When wind in the center of the fan flows out of the fan, certain negative pressure is formed around the fan, and meanwhile, the wind around the fan also flows towards the center of the fan to drive the wind outside the generator to flow to cool the outside of the generator, thereby cooling the inside and the outside of the generator.

Description

technical field [0001] The invention relates to a generator, in particular to an internally and externally cooled generator. Background technique [0002] The heating of the generator is an important problem that has been plaguing generator manufacturers. The reasons for the heating of the generator are mainly the following three reasons: 1. Mechanical friction heating, because the generator is composed of the stator and the rotor. If the rotation generates electricity, during the rotation process, the installation surface and the mechanical wear surface of the support machine will generate heat; 2. When the current passes through the stator and rotor conductors, heat will be generated; 3. Since the stator and rotor are made of ferromagnetic materials, Ferromagnetic materials generate heat generated by eddy currents in a magnetic field. During the use of the generator, if the heat is not dissipated in time and quickly, it will cause the heat to accumulate around the generat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/06F04D29/38
Inventor 陈万中高飞周长海徐士国徐士祥
Owner SUZHOU JINDING MACHINERY MFG