OK, heres an idea. How about a vent and fan in the bottom of the spare tire compartment to suck air from beneath the car (its cooler in the shade)....while parked of course....and pushes it into the car.
Then crack the windows at the top to let the air out.
Then do what ever to move the air through the battery.
__________________
Jim Isbell
2000, 5 speed, 250,000 miles
"If you are not living on the edge, well then,
you are just taking up too much space."
From another thread I saw your Picasa Web Albums - Jim link, went to it and saw your fantastic install of the charger inside the battery box. Very clean and nicely done.
Question - when parked can I just run my battery fan off the 12v system? Plug it into the cigaretter lighter socket?
Thanks
__________________
Rush
#1 - 2000 Silver #4965, not working now, 175k Miles, 61 LMPG - will probably turn into all Electric
#2 - 2000 Silver #4095, 185k Miles, 62 LMPG, OBDIIC&C by Peter, GCIM1 by Mike on bat pack www.TucsonEV.com
Tucson AZ
From another thread I saw your Picasa Web Albums - Jim link, went to it and saw your fantastic install of the charger inside the battery box. Very clean and nicely done.
Question - when parked can I just run my battery fan off the 12v system? Plug it into the cigaretter lighter socket?
On the battery cooler thing, I have been thinking....dangerous....
When the battery fan is running it takes air from behind the passenger seat and pulls it through the battery then pushes it into the battery box. Where does it go from there?? Must go outside somewhere because it doesnt return to the cockpit, right?
OK, now with that information, reverse the flow and the air will be drawn from below the car SOMEWHERE (nice cool air from a shaded area) and come out inside the car. Crack the windows and that air goes out, OR, it would also be able to exit from the front vents which would be open when the car is parked.
Now, I know that the stock battery fan cannot be reversed as it has a diode internally that allows it to turn only one way. BUT..there are hundreds of fans available that WILL go both way. Get one and replace the stock fan. Then hook up a thermostat controlled circuit to turn on the fan in reverse when the car is parked and the battery is hot.
Neat, simple, and should work...??? Also, it might make the car more livable when you get back to it!!!
__________________
Jim Isbell
2000, 5 speed, 250,000 miles
"If you are not living on the edge, well then,
you are just taking up too much space."
I thought it came through the ventilation system from the outside. Reading through the encyclopedia and through this forum, I thought that the car drew air through a vent directed to the battery, so if you had the heat running, some of the heat would go to the battery, same with the air when cooling the car.
If this is the case, it is pulling fresh air in and exhausting it to the cabin. If this is not the case, I can see how it wouldn't help and would probably just be blowing the air around a bit in a circular fashion. As far as I can tell it blows out the little holes on the bottom of the IMA box and into the spare tire compartment. What could be done is the air could be ducted to one or both of the vents in the rear of the car that exhaust outside, therefore air would be pulled in through the car and sent outside.
I thought it came through the ventilation system from the outside. Reading through the encyclopedia and through this forum, I thought that the car drew air through a vent directed to the battery, so if you had the heat running, some of the heat would go to the battery, same with the air when cooling the car.
That is correct. What I propose is to reverse that flow.
Quote:
Originally Posted by MN Driver
If this is the case, it is pulling fresh air in and exhausting it to the cabin.
No, it draws it in from the intake behind the pasanger seat and out into the battery box/spare tire compartment...which MUST have an exhaust under the car somewhere or it would be dead ended there. Now where it comes from before that intake behind the seat depends on wheather you have the windows open or the air vents open....etc.
Quote:
Originally Posted by MN Driver
If this is not the case, I can see how it wouldn't help and would probably just be blowing the air around a bit in a circular fashion. As far as I can tell it blows out the little holes on the bottom of the IMA box and into the spare tire compartment.
But the spare tire compartment is a DEAD END if there are no vents on the bottom of the car. So there must be an exit there or the back pressure would stop the air flow within seconds.
__________________
Jim Isbell
2000, 5 speed, 250,000 miles
"If you are not living on the edge, well then,
you are just taking up too much space."
Air from the spare tire compartment circulates back up into the cargo / hatch area through those two visible plastic vents. The motor controller on the other hand draws air from above the gas tank and vents it to the rear of the car just behind the gas tank.
I punched a 80mm hole out the back of mine and mounted a 80mm vent fan, didn't help much at all. I had planned on going to 120mm with a 120mm fan and a dryer vent, but haven't gotten it installed yet.
Come on, Honda, I'm dying for want of cargo space! Look at all that room behind the rear bulkhead. I should put another cargo pocket back there.
Honda should have put the IPU vent and blower in the crumple zone, moved the inverter and converter forward as far as possible, repackaged the battery cooling duct, and shrunk the IMA box by eight inches!
Yeah, I know, it was revision 1.0 and they weren't in the mood to take chances. They packaged it tighter on the Civic.
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