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Cooling mod for IBT-2 with BTN8982 Hbridges included.

Discussion in 'Motor actuators and drivers' started by Peter_the _machinist, Jun 16, 2023.

  1. Peter_the _machinist

    Peter_the _machinist Member

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    Hi. I would like to share my small(compare to the other genius projects) redesin of IBT-2 motor controllers. If you already have them and the overtemp protection cut it off it is ideal mod for you!

    I've tested it with 300W/each motors with significant improve in therms of heat dissipation.
    upload_2023-6-16_13-25-38.jpeg
    Picture that shows IBT-2 without any modifications and the one with cooling system added and below that there is different H-bridges (BTN8982 instead of BTS7960). I've add 3.2mm washer to the right upper corner just to level the fan-radiator correctly.

    Cheap source of BTN8982: https://www.aliexpress.com/item/1005004648444419.html?spm=a2g0o.productlist.main.3.7ed4f3e4qJOURp&algo_pvid=a6be6eac-4684-4847-84cb-72c53546d917&algo_exp_id=a6be6eac-4684-4847-84cb-72c53546d917-1&pdp_npi=3@dis!SEK!69.0!69.0!!!!!@211beeec16869011103736366d081a!12000029972797635!sea!SE!1855078197&curPageLogUid=SKM7SD7AoanH

    Radiator with FAN: https://botland.store/nanopi-accesories/7299-heat-sink-with-fan-for-nanopi-m3-5904422310158.html

    Holder for FAN and radiator: STL in the attachment. ABS 3D printing wit support.

    Example of the replacement for 5V Fan mounted in the radiator module just to take power supply straight from the IBT-2(24V instad of original 5V):
    https://allegro.pl/oferta/wentylator-2510-bez-szczotkowy-25x25x10-mm-24v-11697631571

    It is possible that for engines with around 300 wattage this cooling mod will be good enough without changing the H-bridges because there is only slight difference between BTN8982 & BTS7960. (EDIT: In my case cooling mod itself is not enough. I've tried cooling with BTS7960 and still getting overtemp or overvoltage shut off :)).

    Please, have in mind to use thermal paste between standard radiator and the one you will be adding to this(I mean everywhere you can ;)).

    Attached Files:

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    Last edited: Jun 19, 2023
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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  3. Peter_the _machinist

    Peter_the _machinist Member

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    3DOF, DC motor, Arduino
    Thank you for appreciating noorbeast!
  4. Carl

    Carl New Member Gold Contributor

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    My Motion Simulator:
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    Very interesting modification:thumbs
    the motors I use do not exceed 250W.
    I put thermal paste under the heatsinks,
    Is it worth changing?