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Rare earth permanent magnet power generation equipment for off-grid base station

A rare-earth permanent magnet and power generation equipment technology, applied in mechanical equipment, motors, electric components, etc., can solve the problems of power generation efficiency decline, failure, and increased risk of demagnetization of rare earth permanent magnets, and achieve the effect of avoiding pollution and demagnetization

Active Publication Date: 2021-11-12
浙江英丽科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rare earth permanent magnets used in it are easy to demagnetize at high temperature, resulting in a decrease in power generation efficiency, or even complete failure
Especially in the power generation equipment where the gasoline engine drives the permanent magnet motor to generate electricity, the gasoline engine will generate a lot of heat, which further increases the risk of demagnetization of the rare earth permanent magnet

Method used

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  • Rare earth permanent magnet power generation equipment for off-grid base station
  • Rare earth permanent magnet power generation equipment for off-grid base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] like figure 1 and figure 2 As shown, a kind of rare earth permanent magnet power generation equipment for off-grid base stations includes a fixed frame 1, a gasoline generator 2 fixed on the fixed frame 1 and a rare earth permanent magnet generator 3, the output shaft of the gasoline generator 2 and the rare earth permanent magnet The input shaft of the generator 3 is connected by a coupling 4, and a heat shield 5 is provided between the gasoline generator 2 and the rare earth permanent magnet generator 3. The coupling 4 includes a coaxially arranged first connecting portion 4.1 and a second connecting portion 4.2, the first connecting portion 4.1 is fixed to the output shaft of the gasoline generator 2, and the second connecting portion 4.2 is connected to the rare earth permanent magnet generator 3 The input shaft is fixed, the first connecting part 4.1 and the second connecting part 4.2 are fixed by several heat dissipation connecting pieces 4.3, and the heat dissi...

Embodiment 2

[0025] like figure 1As shown, on the basis of Embodiment 1, the rare earth permanent magnet generator 3 includes a wound stator 3.1 and a rare earth permanent magnet mover 3.2, and the wound stator 3.1 is provided with a heat dissipation pipe 3.3, and the two ends of the heat dissipation pipe 3.3 are connected to The outer shell of the rare earth permanent magnet generator 3 communicates. The rare earth permanent magnet mover 3.2 is provided with a vent hole 3.4, the outlet of the vent hole 3.4 is set on the outer wall of the rare earth permanent magnet mover 3.2, and the entrance of the vent hole 3.4 is set on the end face of the rare earth permanent magnet mover 3.2 close to the axis superior. Also includes a cooling fan 7, the rotating shaft of the cooling fan 7 is coaxially connected with the input shaft of the rare earth permanent magnet generator 3, and the cooling fan 7 is arranged on the side of the rare earth permanent magnet generator 3 away from the gasoline genera...

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Abstract

The invention discloses rare earth permanent magnet power generation equipment for an off-grid base station. The equipment comprises a fixing frame, a gasoline engine generator and a rare earth permanent magnet generator, wherein the gasoline engine generator and the rare earth permanent magnet generator are fixed on the fixing frame, an output shaft of the gasoline engine generator is connected to an input shaft of the rare earth permanent magnet generator through a coupler, a heat insulation plate is arranged between the gasoline engine generator and the rare earth permanent magnet generator, the coupler comprises a first connecting part and a second connecting part which are coaxially arranged, the first connecting part and the second connecting part are fixed through a plurality of heat dissipation connecting pieces, a heat dissipation gap is formed between every two adjacent heat dissipation connecting pieces, a plurality of air inlet holes are formed in the position, close to the axis, of the second connecting part, and the air inlet holes communicate with the heat dissipation gaps. According to the rare earth permanent magnet power generation equipment for the off-grid base station, the gasoline engine generator and the rare earth permanent magnet generator can be isolated, heat transferred from one side of the engine to one side of the rare earth permanent magnet generator is reduced, and demagnetization of a rare earth permanent magnet in the rare earth permanent magnet generator due to high temperature is avoided.

Description

technical field [0001] The invention relates to the technical field of power generation equipment, in particular to rare earth permanent magnet power generation equipment for off-grid base stations. Background technique [0002] Rare earth permanent magnet motor is a new type of permanent magnet motor that appeared in the early 1970s. Due to the high magnetic energy product and high coercive force (especially high intrinsic coercive force) of rare earth permanent magnets, rare earth permanent magnet motors have small size, It has a series of advantages such as light weight, high efficiency and good characteristics. However, the rare earth permanent magnets used in it are easy to demagnetize at high temperatures, resulting in a decrease in power generation efficiency or even complete failure. Especially in the power generation equipment where the gasoline engine drives the permanent magnet motor to generate electricity, the gasoline engine will generate a lot of heat, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B63/04F02B77/11F01P11/00H02K1/20H02K5/18H02K9/06H02K9/193
CPCF02B63/042F02B77/11F01P11/00H02K9/06H02K9/193H02K1/20H02K5/18Y02T10/64
Inventor 巩少荧陈洁陈丽
Owner 浙江英丽科技有限公司