Piezo gas igniters...

Discussion in 'General Electronics Chat' started by Externet, Aug 2, 2018.

  1. Externet

    Thread Starter AAC Fanatic!

    Nov 29, 2005
    1,218
    138
    Hi.
    Seen two kinds of these sparkers. The one with a trigger hammering a crystal :
    [​IMG]

    And the squeeze ones :

    upload_2018-8-2_21-11-12.jpeg
    How do the squeeze ones work ? Have one, produces 3 or 4 5mm spark arcs from start to end of the squeeze and also when releasing, not much effort to squeeze, definitively not hammering anything inside. Prefer not to dismantle it to inspect.
     
    Last edited: Aug 2, 2018
  2. Reloadron

    Distinguished Member

    Jan 15, 2015
    3,612
    1,620
    I have used the trigger type. They contain a cylinder of butane gas, When the trigger is pulled a spring loaded striker strikes a piezo cristal triggering a primary side of a transformer and the high voltage secondary arcs igniting the small gas floe.They work well for igniting the gas fireplace, my torchs and the BBQ pit. My wife buys them by the box for use around here. I can't comment on the squeeze type as I never used one.

    Ron
     
  3. Sensacell

    Moderator

    Jun 19, 2012
    1,982
    613
    Both types use stacks of piezo-ceramic material that generates large voltages when mechanically stressed.
    Stacking them adds the induced voltage in series.

    The snap-action type makes a single impulse, the squeeze type probably has larger piezo elements, the charge builds until the spark gap breaks down.

    Cheap lighters all have snap-action, this must be the cheapest way to get a decent spark.
     
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