Hello,
I work as a mechanical design engineer for a battery cell and module manufacturer company in the EU. We make battery modules with integrated battery management system for vehicles, trains, heavy equipment etc. In order to gain more know-how, I'd like to attend an online course on...
I am designing a plastic enclosure that will house a PCB and 6 battery cells soldered on it. The PCB is screwed on the top cover. The batteries are Ø32 mm and the enclosure will be used inside a vehicle. Therefore, in order to support the cells, I need to fix them inside the enclosure. I'd...
Now what if the busbar is a bent shape such as the one below. How would the repeatability change, compared to the prismatic busbar in the original post?
First of all, plz excuse my incorrect terminology and schematics as I am actually a mechanical engineer.
We are trying to measure the operating current of a DC battery without using a Shunt resistor. The existing terminal busbar will serve as the Shunt resistor. A custom PCB carrying a highly...
Hello,
In Loctite threadlocker TDS, it is stated that it is not usable on plastic parts. See below.
We have a metallic screw, plastic hole pair which is exposed to a lot of vibration during usage in warehouse robotics. Hole is M5 and tightening torque is 0.5 Nm. What we'd like to know are...
Hello,
We have a fixation for a locator pin which is subjected to high freq. (up to 500 Hz) vibration in line with SAE J2380. We chose a wedge-lock washer against vibration. However the washer has a larger inner diameter than required (M12 to M8, see below image). We are concerned about...
Hi LittleInch,
Thanks for the reply. Your glueing suggestion sounds tempting. But I could not understand where exactly the Nordlock washer and the M8 nut would be glued/taped, so that the mating surface between these two would not be contaminated by the chemical. AFAIK, we need some rotational...
They will not be glued to the nut but they can have an adhesive surface which can help to fix on position. I do not expect the adhesive to be necessary.
Can there be another fastener solution to enable using a large inner Ø Nord-lock washer correctly in position as shown in the image?
Thanks all who replied. I acknowledge that it will not work touching on two faces like that. The reason we cannot modify the locator pins is that we already have 300 in stock. So I came up with a temporary solution like below.
In order to avoid touching two different faces, I put a foam spacer...
Hello
We have a battery enclosure and it is mounted in its place using two locator pins at the rear face. During the vibration test named SAE J2380(Vibration Testing for EV batteries), the nut got loose and hence the pin got loose in its position which resulted in test failure. We did not...
