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Old 09-16-2014, 01:07 PM   #1
cramar
 
1992 25' Excella
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Why is charger mounted at an angle?

I have a '92 Excella with batteries at the front behind the couch. We're doing renovations, and the couch is gone. All the battery stuff is exposed and I'm wondering why the factory mounted the charger on wood supports at an angle? Only thing I can think of is if water gets on it, it would run out pretty quick. But a 5 deg. angle would do it rather than what looks like 30 deg. I want to change the mounting and flatten the angle so that I can free more space for an eventual inverter to mount above the charger. Is there any technical reason why the charger is mounted at a severe angle?
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Old 09-16-2014, 02:39 PM   #2
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There is no good reason for mounting a charger/converter at an angle. My guess is maybe it was done to free space beside it for a drawer, etc. Feel free to mount it flat like 99.9% of the other charger/converters in the world.
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Old 09-16-2014, 06:33 PM   #3
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Mine was mounted that way because the low end was next to a vent where air came in to the fan and the high end was next to an air exit vent. The converter was mounted in a storage compartment that was built against the front wall when the gaucho was removed and replaced with recliners. This was done at JC, so they may have been mimicking some configuration they had used before.

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Old 09-18-2014, 02:14 PM   #4
cramar
 
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Think I found the reason.

Thanks for the replies. There was no vents anywhere near mine.

Taking a closer look, the charger has a finned heatsink running the length of the entire bottom. The unit has has no fans, therefore it is convention cooled only (it says 40amps/700watts). The top and end is full of vent holes and I can see what looks like transformers on top of a circuit board. I surmise that the power semiconductors are all mounted to the bottom heatsink under the circuit board. Therefore I assume that the angle mount is so convection cooling will take place running up along the heatsink. If it was mounted flat the cooling airflow for a bottom heatsink would be terrible.
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Old 09-22-2014, 11:11 PM   #5
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I'm having a hard time believing there is any functional reason regarding cooling as to why they mounted it that way but maybe. I'm not buying it but heck, I learn something new every day. I can certainly say that is the first I've heard it.
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Old 09-22-2014, 11:49 PM   #6
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On ours, it looks like somebody got in a hurry!
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