Aubergine 

base2 

Originally, my first thought was the Shimano dynamo hub plug, but then I remembered that although it will slide over the prongs of the Schmidt, the plug is too fat/blades too thin for good contact.

What you can do is leave the spade connectors connected to the hub and then install some other connectors several inches down the line that are intended to be seperated/reconnected easily. If you had the proper crimper, Anderson Power Pole® would be my go-to since, my other hobby is HAM radio, I have drawers full of 'em. But any waterproof automotive electrical connector along those lines would work just as well.

I would take the time to solder and then shrink wrap whatever connection terminals you decide on for durability, in any case.

Aubergine 

fietsbob

With SON hubs you make the spade connectors easier to reach by how you orient them when you put the wheel in.. that's free..
How often to you have to pull the front wheel?

There are Inline power supply plugs you can solder in yourself Schmidt Co Ax cable makes that a bit more difficult...

with no Radio shack locally you can try this company Parts-express ..I use their services..






...

Tourist in MSN

The Shimano and SP connectors are the same. I can't imagine you could damage anything on the SP hubs with one of those connectors. But I however once did accidentally pull the wires out of a Shimano or SP connector when I was wearing gloves (winter) and was not careful enough to get a good grip on the connector. From that I learned that I need to be more careful when I pull the plug off.

In the photo I have a SP hub and Shimano connector. If the photo is a bit confusing, I have a front Tubus Tara rack on the bike. I have never used a SON hub, have nothing to suggest on that hub.

PaulRivers

I haven't used this but it seems like it's what you're looking for?

https://www.harriscyclery.net/produc...ector-5448.htm

pdlamb

I've always found that the Shimano connector, if oriented as Tourist illustrates, falls off the hub if I forget to remove it when I drop the wheel.

Perhaps gently loosening the SON connector (if that's what OP has) just a tiny bit with a small, flat blade screwdriver would suffice?

angerdan

Interesting find!
littlefordbicycles.com/dyna-snap-com/
dyna-snap.com

Aubergine 

wschruba

You can get gold-plated banana plugs in the proper size for generators from the people that sell Sinewave, too. It's a good idea, whichever you do, to stagger the plugs by a centimeter, or so, so you can't accidentally plug it into the wrong wire (or simply reverse the connectors on each wire).

I was going to suggest before you did, though, that you relieve the spade connectors a bit. They need to be snug, but not so tight that they are nigh impossible to remove; stick a slightly small flatblade screwdriver in the female connector, and wallow a bit (hold the connector with a pair of needlenose pliers, if you have to), and test the fit periodically.

fietsbob

NB: (Been mentioned before) But they are single conductor, not coax, so you need to buy 2.. 1 for each wire..

fietsbob

planet bike dynamo headlight uses an inline coax plug .. it is used to remove the light when you park the bike , so it wont get stolen. while you are @ work ..

Aubergine 

Aubergine 

unterhausen

The official Schmidt coax connector is pretty slick and comes apart really easily. I haven't used mine yet, but a friend says he has pulled it apart by taking the wheel out with no issues. It's expensive though. I went to Peter J. White's website first, looking for a picture, but he doesn't actually have a picture of the part. Compass does: https://www.compasscycle.com/shop/co...axial-adapter/

I was designing a shimano-style connector for schmidts when I found out about the coax, so I lost interest. Anyone wants the files can ask

pdlamb

I was going to make a comment about the crime-ridden area where you live and ride, then I noticed the quick-release light mount.

Haven't had that problem (yet?) with my bolted-on lights.

angerdan

They are available as 1,2 and 3 connection version.

noglider 

I thought I would face this concern so I built for it. I later discovered it wasn't necessary for me. But if it is for you, you can do this easily and cheaply enough. I used CCTV power connectors. The males are here, and oddly enough, the females are unavailable. I guess you have to do some searching but maybe this is enough to go on.

I have to remember to undo these connectors before removing my wheel. They're very strong, and on the few times I forgot, they held together, and the original plug came out of the hub.

steelbikeguy

for what it's worth, this is what I've been using with my first generation Schmidt dynamo for a very long time (18 years??)
I use some Amphenol pins and sockets. Nice reliable parts, available at Digi-key with p/n's #889-1233-ND and #889-1232-ND. No reason that any other quality pins and sockets wouldn't work too.



I've got a 3rd generation Schmidt with a very similar arrangement, albeit with wires that blend in a bit better.

Steve in Peoria

wschruba

Somewhat interestingly, B&M spades have ridges and a corresponding hole (like a zip tie mechanism) to help hold them together without being unreasonably difficult to get apart. I realize it doesn't help the larger spade size, since B&M only makes the smaller ones, but there you go.

RGMN

How about a connector that is made for harsh environments? It might be heresy but a heavy duty vehicle connect would probably work, wouldn't be too expensive, would resist water & dirt ingress, and would be easy to separate even with gloves on. Something like a Deutsch DTM series should work well (go with the solid contacts, they have lower resistance.)(Batts Racing isn't the cheapest source, but they make it much easier than trying to figure it out from Deutsch's site.) Add a drop of NyoGel 760G on each contact and the connector should last forever and wouldn't vibrate apart. Just an opinion from someone who designs electronics for harsh environments.

steelbikeguy

I've worked with the Deutsch connectors quite a bit in the earth moving industry. Hugely less expensive than the mil-spec stuff I worked with when doing avionics (a.k.a. aircraft electronics), but still quite rugged and reliable. In fact, the pins I show in my recent post are used in the Deutsch connectors. My only issue with the connectors is that they are rather bulky for bike applications.
I've had pretty good luck with just the pins and sockets, and perhaps a bit of dielectric grease now and then. The nickle plating on the contacts are quite resistant to corrosion, though, even in lousy conditions such as shown below....



Steve in Peoria (no snow right now)

gugie 

Cheap and easy solution:


Step by step, no solder instructions here.

Idea shamelessly stolen from @southpawboston, aka Velo Lumino

RGMN

The DTM series is substantially smaller than the DT series, and shouldn't be too bulky on a bike.

FWIW NEVER use dielectric grease on the contacts. As it ages it create issues of its own, primarily fretting on the contacts, as well as becoming a sticky mess. NyoGel 760G lubricates the contacts and prevents fretting. And it doesn't dry out and create a sticky mess.

pdlamb

How do contacts fret? Doesn't fretting require small repetitive mechanical motions? Electrical contacts on my bike stay connected for months or years at a time.