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looking for "Detent" electrical connectors/contacts

Discussion in 'Electronic Design' started by Tom, Apr 18, 2007.

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  1. Tom

    Tom Guest

    I apologize for the cross post, I realized I might have originally
    submitted to the wrong group...

    I have been looking all over for a some type of connector/contact that
    I can use to connect power between to separate cases that slide
    together. The cases are made of plastic, and I was thinking some type
    of contact that looks like a rivet or screw head (Slightly convex
    head). The contact on the other side would be slightly concave. So
    the contacts would sort of snap together when they are moved into
    position across from each other. This would also prevent the to cases
    from sliding apart, until enough pressure is exerted. I know that
    Milmax and others make a spring version of something similar to this,
    but I would prefer to use the slight flexibility of the plastic case
    to provide the spring action, not to mention keeping the design
    simpler. It would be great if these were simple "push-through" barbed
    contacts. Does anyone know of a supplier for something like this?

    Tom Kuhn
  2. Rich Grise

    Rich Grise Guest

    Look at the contacts of an industrial battery-powered drill and its
    charger; they seem to do it reliably. If you have any control over the
    form of the case, mold detents into it.

    Good Luck!
  3. Jerry R

    Jerry R Guest

    Would banana plugs/jacks provide enough mechanical resitance? They're cheap
    and available everywhere.

  4. jasen

    jasen Guest

    how about magnetic contacts, they'ree becoming popular on some gadgets.
    I've seen thumbtacks in both convex and concave, dunno what the cheap
    brass-plating would stand up to though.

  5. Tom

    Tom Guest

    The problem with plugs like that are that the case slides on each
    other in a parallel fashion, so each box is pretty flush with the
  6. Guest

    Guest Guest

    ready made? u seek a mechanical solution to a electrical issue it seems. u
    already have described the performance, perhaps some commonly avail harware
    store fasteners, brass type? ( custom gold plated? ), or just some spring
    brass alligned to contact when the cases slide together..

    substantial power requirements will demand that you make soem kind of
    calculation regarding contact loss or heating effect if much current is
    being used. and repeated contact may result in erosion of the contact

    and the theres the looming issue of safety, will the power source contacts
    be exposed so some person may be toasted?

    even humidity may be a problem if it is continual and present.

    nice nickel plated polished roundy headed rivets may suffice. those with a
    low curve may be available for less than a penny per.

    dont always rely on "pre-manufactured" solutions, use your imagination....
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