What is this and how does it work? Thx

Just a tube to vent potential battery nasties, nothing to see here.

 

I think the air goes by plastic tube. This is a rubber tube, and is attached to a plastic container, in my opinion, could be washer liquid. Can you make a closed picture with the container?

 

It is a vent for the hybrid battery that comes from the hybrid fan.

Posted via the PriusChat mobile app.

 

It is exactly as @SFO stated.

The other info posted is inaccurate.


The 28 modules inside the battery case each have a relief vent, which will open if the module experiences high internal pressure. There are 2 rubber 'hoses' inside the HV Battery that each link 14 of these vents and then are connected together on the passenger side of the battery. They're connected together by that white plastic "y" shaped tube. That white plastic tube is then connected to the black rubber hose, which passes through the floor to direct any "battery gases" to the car's exterior.

There is no "air flow" through that tubing. Zero.

 

Can you take a picture from this direction?
I keep my opinion it is related with water not with air until further info...

 

Window washer fluid (if that's what you mean) does not route through here. If routes via the RHS under the door sills then up to the hatch. Sorry, but SFO and TMR are correct.

 

For crying out loud.

After the original poster asks a question and both SFO and TMR-JWAP give the correct answer, could we have a little less filling the thread with "alternative" answers that will just miseducate future readers who find it?

It's item 28885 here.



The battery modules are filled with potassium hydroxide. It will eat you. They should never need to vent in normal operation. If they ever do, the hose carries the stuff out of the car (you can see it goes through a grommet in the floor). The hose has to be made of stuff potassium hydroxide will not eat.

By the way, because you are made of stuff potassium hydroxide will eat, be very careful handling that hose, or ever being under the car where the end of it sticks out.

There should normally be nothing in it, because none of the modules should ever have needed to vent. But then, if you could count on that never happening, the hose wouldn't be needed in the first place.

 

Yes, I am possible be wrong, I am sorry to polute this topic, as our colleague
ChapmanF says...
But for educational reasons, please, make a picture with the plastic container where the tube is attached.

later edit
to be better informed, I post here the parts and locations for the battery pack.
But I am a little confused about recognising that hose...

 

What "plastic container"?

The hose is connected to two long collecting tubes (28875 and 28876 in the picture above) that run the length of the battery, fitting over the safety vent valves on the modules. There are two tubes because the modules face alternate ways (− to + and + to −), and the vent valve is nearer one end of the module, so each collecting tube fits over the valves for half the modules.

You can see that in the diagram, right?

The two collecting tubes join into the single rubber tube, and that does not go to any "plastic container". It exits the car through a grommet right through the floor, pointed at the road.

That's where any of the potassium hydroxide will go if any of the modules should ever vent.

Do you want more pictures? This forum is teeming with pictures of people's battery disassembly projects. Why not search some up?

later edit:

Did you find the label 28885 in the illustration in #10?

Photo by hobbit of the collecting tubes removed from the battery:

 

make a picture with the plastic container where the tube is attached.


Here is a photo of the passenger side of the hybrid battery (one I have in the shop, where you can see the white plastic piece), and another photo showing the vent tubes with the rubber hose attached.

 

Yes

Posted via the PriusChat mobile app.

 

That's incorrect though. It has nothing to do with the venting system that cools the battery through the fan.

It is only an escape path for the flesh-dissolving potassium hydroxide inside the battery, if it ever needs to vent from an overpressurized module. It leads straight out of the car through a grommet in the floor.

There is normally nothing in it, because the battery modules are not ever supposed to vent pressure in normal conditions.

But it should always be handled carefully as if it could contain something, and as if the something it might contain could be a serious skin and eye hazard.

 

Should be possible to just bend it back? Say lay it upside down on a carpet or exercise mat (something supportive but able to "give" locally, place a small block of 2x4 on the cave-in spots, smack with a small sledge hammer?