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[技术] 自制模型无刷电机

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发表于 2014-8-18 09:31:46 | 显示全部楼层 |阅读模式
本帖最后由 模型飞机 于 2014-8-18 09:33 编辑

自制模型无刷电机
一些年前在德国模型杂志,看到了LRK无刷电机的一篇文章,我就一直想要做一台模型电机。
LRK能给我我所需要的动力,在直接驱动上,效率高,并且无齿轮箱!
从互联网上找了许多文章,发现LRK电机是很容易建立,它是一个非常稳定高效率的电机。

自制模型无刷电机

自制模型无刷电机
LRK电机零件结缔皮少,12齿的定子。

 楼主| 发表于 2014-8-18 09:34:28 | 显示全部楼层

自制模型无刷电机

自制模型无刷电机

The 3 other part are all homemade turned parts.

自制模型无刷电机

自制模型无刷电机

The rotor have 14 mangets, all glued to the the iron ring with epoxy.
The original LRK motor only have windings on 6 of the teeth,
This motor is a 345/20 with 11 windings, a wery powerfull motor

自制模型无刷电机

自制模型无刷电机

When I glue (epoxy) the magnets I use this fixture for making the right distance between the magnets, this work everytime and is a easy way to do it.
When the glue has set, I remove the fixture, and fill the space between the magnets with epoxy mixed with micro balloons.
 楼主| 发表于 2014-8-18 09:35:00 | 显示全部楼层

自制模型无刷电机

自制模型无刷电机

LRK 345/20 together with a S600 mounted with a gearbox, the LRK motor give 3 - 4 times as mutch power as the S600.

自制模型无刷电机

自制模型无刷电机

A S400 together with 2 small LRK's a 228/12 and a 295/15, the last one is 4 - 5 times more power full than the S400.

自制模型无刷电机

自制模型无刷电机

 楼主| 发表于 2014-8-18 09:35:35 | 显示全部楼层
The first 5 stators for the the first lot of motors. These motors are winded the old way, where the winding are made only on every second tooth.

自制模型无刷电机

自制模型无刷电机


3 different LRK, from left: 345, 295 and 228. (that mean 34,5mm 29,5mm 22,8mm in stator diameter)
All these LRK have windings on all teeth. This is the new winding method, making a motor with a higher efficiency, but the winding proces can be more difficult.
Today I make all my motors this way.

自制模型无刷电机

自制模型无刷电机


Rotors for different motor sizes, from left: 228/12, 295/5, 295/15, 345/15, 345/20 and 345/25 (the last figure is the length in mm of the stator).

自制模型无刷电机

自制模型无刷电机

 楼主| 发表于 2014-8-18 09:36:28 | 显示全部楼层
A LRK 295/5 mounted in the H鰈lein Piber. The weight of the motor is 60 g, the half of the scrapped S400 with gearbox.
The number of turn on the LRK is made that way, that the power consumption is like the S400. The LRK is them making a lot more output than the S400 did, because of the higher efficiency in the LRK motor.
Today I use a LiPo 1100 mA battery (2S2P = 2200 mA) or 2S3P = 3300 mA) in this plane, this give me a flying time longer than 1. hour
Power on......

自制模型无刷电机

自制模型无刷电机

My first motor (345/20-11) ready for test. The test was done with a APC 11x10 and 10 cells.....This was real power !!!!!

自制模型无刷电机

自制模型无刷电机

LRK 345/25-19, two of the 6 motors for my FWTa400. The prop is a Carbon VarioProp, 3 blades 15x10 and 12 cells.
.... I look forward to hear and feel all 6 motors running at the same time

自制模型无刷电机

自制模型无刷电机

发表于 2014-8-19 12:26:48 | 显示全部楼层
路过,看了以后,顶一下。
发表于 2014-8-23 07:27:14 | 显示全部楼层
初来乍到,看帖必须回帖。
发表于 2014-8-28 19:37:57 | 显示全部楼层
初来乍到,看帖必须回帖。
发表于 2014-8-29 07:32:41 | 显示全部楼层
还不错,只是没有具体的过程
发表于 2014-11-24 14:03:33 | 显示全部楼层
找到好贴不容易,我顶你了,谢了
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