Author Topic: axial generator with lamination core (Read 221239 times)

hiker · « **Reply #33 on:** June 24, 2018, 06:37:39 PM »

What's the plan....I was just thinking ..yesterday..wounder if he ever finished up on that....😜

mbouwer · « **Reply #34 on:** June 25, 2018, 05:24:01 AM »

Making the hardware is what I like.
Regarding the designing of the stator I am always looking for expertise.

electrondady1 · « **Reply #35 on:** June 26, 2018, 10:29:01 PM »

what is the diameter of your mag rotors?

mbouwer · « **Reply #36 on:** June 27, 2018, 03:42:11 AM »

Magnetrings:
outside diameter is 300 mm.
inside diameter is 278 mm.
thickness 4 mm.

hiker · « **Reply #37 on:** June 27, 2018, 12:23:49 PM »

About 12 inches..a working Modle. .cool.!

mbouwer · « **Reply #38 on:** June 28, 2018, 06:20:17 AM »

The lamination packages have to be clamped to be able to turn the winding wire around them.
Therefore I made this two axle driven coil winder.

mbouwer · « **Reply #39 on:** July 16, 2018, 04:47:58 AM »

First a small test set up.
Stc. Ã¸ 120 mm.

hiker · « **Reply #40 on:** July 16, 2018, 12:22:23 PM »

Cool..did you insulate between the metal plates..paint or other ? Wounder if you would see any diffrance by using a solid metal bar on something that small..

mbouwer · « **Reply #41 on:** July 16, 2018, 01:15:05 PM »

The mould and the superglued small laminates.

MattM · « **Reply #42 on:** July 18, 2018, 07:14:22 AM »

Thank you for the regular updates. Your blogging is not only informative, it's thought provoking.

mbouwer · « **Reply #43 on:** July 19, 2018, 04:14:53 AM »

It is becoming real nice I think more and more homebuilders working together.

mbouwer · « **Reply #44 on:** July 20, 2018, 10:15:32 AM »

A sandwich of 2 layers of polyester that forms the stator.

mbouwer · « **Reply #45 on:** July 21, 2018, 04:27:53 AM »

Rear view of the flange of the main axle.
Around it the 9 stator brackets.

MattM · « **Reply #46 on:** July 21, 2018, 10:41:41 PM »

The hole in the center of the stator should breathe well to the backplate. As it is now the air looks like its meant to channel between the nine brackets. That backplate should act well as both a heatsink and heat dissapator. The ability to dissipate heat would be limited only by the airflow velocity. The first rhetorical question that comes to my mind would be if one big hole or maybe a pattern of smaller holes distributed evenly around the backplate could allow air behind it (especially if designed to rotate air in vortex patterns) and move past the stator faster. I'm only thinking out loud and remember back to older otherpower stories about how hot the stators would get. But those old designs didn't seem to consider any aspect of cooling when they were assembling the stators, and maybe its not an issue.

mbouwer · « **Reply #47 on:** July 22, 2018, 04:49:32 AM »

Nice thoughts about the cooling to consider in my trying to shape an improved stator.

electrondady1 · « **Reply #48 on:** July 22, 2018, 08:20:17 AM »

yours is the most confusing build i have ever seen on field lines.
it seems to have gone on for about two years and changed direction several times.
from this latest photo it shows a dual rotor set up .
if that is the case, why have you been showing bits of iron in the middle of your coils?
i also have doubts about the width of you coils in relation to the width of your magnet spacing. perhaps it's just the photo but your coil legs should be over two magnets and yours appear to be too narrow for that.

mbouwer · « **Reply #49 on:** July 22, 2018, 09:28:41 AM »

It shows a development that I am going through over the years.
Searching for a light, easy self to build generator with laminated iron cores in the coils.
Now the thickness of the magnets is 5 mm and the thickness of the coils ( and the lamination package ) is 14 mm.
If you want more details I always like to show them.

electrondady1 · « **Reply #50 on:** July 22, 2018, 11:05:04 PM »

i think it's great your experimenting.
so your doing a comparison in output ?
as in between air core , iron core and your hybrid design with laminates inside the coils ?
how is that working?
why do i get the feeling it's going to cogg like a pig?

or the stator really shudder (huiveren) badly?

mbouwer · « **Reply #51 on:** July 23, 2018, 07:13:41 AM »

By testing and driving it I think I can find out about improvements.

mbouwer · « **Reply #52 on:** August 07, 2018, 05:58:56 AM »

Generator set up version 07-08 Stc. Ã¸ 278 mm.

hiker · « **Reply #53 on:** August 07, 2018, 12:48:43 PM »

My 20-15 alt spins over with one finger...metal cores..mounted on metal band....not sure what a 9 - 12 alt would do with 3 mags centered at any one time..the rest eather pulling or pushing...should be only a slight drag...what's your new setup..?

mbouwer · « **Reply #54 on:** August 07, 2018, 01:09:31 PM »

Is it possible to mount 45 coils -- 46 magnets?

electrondady1 · « **Reply #55 on:** August 08, 2018, 07:49:47 AM »

make 46 coils for single phase .

hiker · « **Reply #56 on:** August 08, 2018, 12:36:55 PM »

Now that would cog...with metal in the coil centers..! Tried it few years back...dam near took a pipe wrench ..to spin it over..and the vibration was massive.....fun stuff....😜

mbouwer · « **Reply #57 on:** August 09, 2018, 04:26:00 AM »

Now prepairing laminations and magnets.

mbouwer · « **Reply #58 on:** August 11, 2018, 07:51:01 AM »

Testcoil 220 windings 0.5 mm. Resistance 1,2 Ω

hiker · « **Reply #59 on:** August 11, 2018, 12:20:42 PM »

3 phase..coil & # count..?

mbouwer · « **Reply #60 on:** August 13, 2018, 11:04:30 AM »

Looking forward to the Aeolus Windraces on 23-25 of August.

mbouwer · « **Reply #61 on:** August 17, 2018, 04:38:14 AM »

Glued 2 x 50 magnets 20 x 10 x thickness 5 mm. Now shaping test coils.

mbouwer · « **Reply #62 on:** August 26, 2018, 06:16:03 AM »

Stator has come out of the mold. Now I need a stator bracket.

hiker · « **Reply #63 on:** August 27, 2018, 12:25:43 AM »

Nice ..single phase.? Wounder if putting some lams between the coils would help out cogging wise..my coils are mounted to a solid metal ring..with metal in the center of coils..spins over with just one finger..20- 15 alt..

mbouwer · « **Reply #64 on:** August 28, 2018, 02:26:57 AM »

The intention is 3 phases. Question is whether cogging will be a problem.

hiker · « **Reply #65 on:** August 28, 2018, 12:24:42 PM »

What's your coil count.? Looks close to 50...

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Author Topic: axial generator with lamination core (Read 221239 times)