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Is this a Variable Inductor?

Discussion in 'General Electronics Discussion' started by wirysage, Feb 8, 2013.

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  1. wirysage

    wirysage

    2
    0
    Feb 8, 2013
    Hi,
    I was helping my mate get his Toyota Soarer power windows working and while we were testing his switch we lost a little plastic piece shaped like an 'L', which went up inside the bottom of this electronic component.

    Here are some pictures of the component and the hole at the bottom, which the plastic piece used to rest in.

    [​IMG]

    [​IMG]

    After some research I'm thinking this thing is a variable inductor/coil because it seems to have a spring inside, which the plastic 'L' piece pushed against.

    Now the window motor and switch work just fine without this 'L' piece for some reason. So what exactly did the 'L' piece do by pushing on the inductor's spring? Considering it works now without it pushing down on the spring just fine.

    Here is some info on spring loaded variable inductors http://en.wikipedia.org/wiki/Inductor#Variable_inductor
     
    Last edited: Feb 8, 2013
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    Looks more like a solenoid
     
  3. wirysage

    wirysage

    2
    0
    Feb 8, 2013
    So why would a solenoid need a plastic 'L' piece going up inside it? From what I could see it had nothing to 'push or pull' on. It simply rested against a bare plastic surface.
     
    Last edited: Feb 8, 2013
  4. davenn

    davenn Moderator

    13,833
    1,950
    Sep 5, 2009
    yup definately looks more like a solenoid

    so is there metal inside the plastic rod ?

    show us a pic of the "plastic" bit

    Dave
     
  5. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    Or is there a (movable) metal slug inside the coil
     
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