Cooling windshield mounted RD idea / R7

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From browsing around RDF it sounds like the R7 doesn't like heat too much on a hot summer day. I know it gets quite warm just using it indoors in an air conditioned environment. I poked around on the Jungle and found this as an idea to experiment with cooling.

First concern is added weight on the mount (I use the suction cups) which, are pretty strong in my opinion. I'm sure you could take off the metal fan blade covers to save some weight.

Second big concern would be the electromagnetic field generated by the fan motor and possibly affecting RD performance? This might be the biggest idea killer. If not, I'm probably going to try this out.

Third would be mounting/attaching the fan to the detector. The dimensions look to be a good fit for mounting on the bottom of the R7. Perhaps, with just a simple zip tie setup and some cut to fit screen protector material so, the zip tie doesn't mark up the R7.

Post away, let me know what you think!

1569250521759.png


Perhaps, a 60mm instead of an 80mm fan to save on weight.

1569250762604.png
 
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auskip07

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maybe you could cut some vents in the plastic housing?
 

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maybe you could cut some vents in the plastic housing?
Thought about that but, shying away from that in case I ever sell it. Anyway, I just ordered the $10 60mm fan to experiment with as it will be lower profile and lighter weight than the 80mm. Also, another thought is that it won't look so good and will have another power cord to deal with.
 
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sdrawkcaB

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Thought about that but, shying away from that in case I ever sell it. Anyway, I just ordered the $10 60mm fan to experiment with as it will be lower profile and lighter weight than the 80mm. Also, another thought is that it won't look so good and will have another power cord to deal with.
Let us know how it goes. I'd be curious to see how you end up rigging it all up.
 

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Why not just turn on the AC and hit the windshield vent?
Great idea but, it would blow the AC through the windshield defrost vent and the floor vents in my horseless carriage. I only have 5 options for the vent airflow. I like having the AC come out the main dash vents blowing on myself. Plus, there is the gf factor of complaining about her feet getting cold as she wears mostly sandal type shoes in the summer.

I once had a rental car that had quite the sloped windshield and a interesting dash vent that I could aim right at the bottom of my V1 when I had it. Sorry, but I don't remember what make/model the rental was.
 

Rocky Road

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My R7 is mirror mounted, but I personally have had no issues with mines in this hot South Carolina heat. I never take mines down either, but the issues I've seen from others on here is the suction cups.
 

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I use a mirror mount also for my RD, and don't take it down when I'm parked. Car can get pretty hot in the sun, so I've taken to using one of those solar windshield protectors. Has a cutout for the mirror, and it keeps the interior way cooler with it in place. Also helps to physically block the RD from being seen by prying eyes ; )
 

STS-134

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Plus, there is the gf factor of complaining about her feet getting cold as she wears mostly sandal type shoes in the summer.
What?!? I always direct AC down to the foot vents when I wear sandals. It's super comfortable.
 

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Plus, there is the gf factor of complaining about her feet getting cold as she wears mostly sandal type shoes in the summer.
What?!? I always direct AC down to the foot vents when I wear sandals. It's super comfortable.
I have the same issue. I run A/C split between dash and foot vents almost always. The wife don’t like it because she says her feet get frozen, so so usually blocks her passenger side floor vent with a purse or something.
 

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From browsing around RDF it sounds like the R7 doesn't like heat too much on a hot summer day. I know it gets quite warm just using it indoors in an air conditioned environment. I poked around on the Jungle and found this as an idea to experiment with cooling.

First concern is added weight on the mount (I use the suction cups) which, are pretty strong in my opinion. I'm sure you could take off the metal fan blade covers to save some weight.

Second big concern would be the electromagnetic field generated by the fan motor and possibly affecting RD performance? This might be the biggest idea killer. If not, I'm probably going to try this out.

Third would be mounting/attaching the fan to the detector. The dimensions look to be a good fit for mounting on the bottom of the R7. Perhaps, with just a simple zip tie setup and some cut to fit screen protector material so, the zip tie doesn't mark up the R7.

Post away, let me know what you think!

View attachment 130919

Perhaps, a 60mm instead of an 80mm fan to save on weight.

View attachment 130920
Decided I'm going to keep this very basic and not an intrusive experiment as this detector has only been on the market for a few months and under warranty.

My idea now as to not void the warranty is to use four rubber sticky drawer/cabinet bumpers on the fan that will contact the R7. Looking at the location of the vents on the bottom of the R7, where the fan should be placed the use of a zip tie will interfere with the side Mark/Dim Mute buttons so, I might just end up using a rubber band. At least with the rubber band there would be no worry (like a zip tie) marking up the apperance of R7.
 
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hm, I’ve heard of people complaining about heat for dashcams, but not as much for RD’s. Anyone got a link handy to a thread or two to reference describing heat being an issue for an R7 or another detector? I’m sure all of you father south have way more experience than me with this. :)
 

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hm, I’ve heard of people complaining about heat for dashcams, but not as much for RD’s. Anyone got a link handy to a thread or two to reference describing heat being an issue for an R7 or another detector? I’m sure all of you father south have way more experience than me with this. :)
@Rocky Road is probably right on with it just being a suction cup issue. I always had this issue with V1 suction cups (even brand new) in the summer so, perhaps the few mentions of the R7 and heat were just referring to the suction cups.

Since, I've already ordered the fan, I'll still set something up and post pics after I get this post done.

I do recall with my V1 even being 90% out of the sun getting quite toasty. I have yet to use my R7 so, I'm not sure how toasty it will get. At least it has case vents!

Also, I would like to ask again to anyone who would have knowledge of fans and possible electromagnetic interference (EMI) and unconstrained magnetic fields fans generate possibly affecting the detectors performance?
 

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When I use and install my RD's, I always make it a point that one of my air vent is always directed to it - had to do it for the V1 for a long time. I position my RD either at 12 or 1 O'clock position. It varies from vehicle to vehicle. If it does not get a direct hit from the air vent, I use the sun visor to deflect the air flow towards the RD by pulling it down at an angle. You will be very surprised on how effective that is. Cools down the RD in no time and optimizes the performance. I also install a 5% windshield strip tint to avoid direct sunlight. Heat is the number one culprit for electronics.
 

Gunney57

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Great idea but, it would blow the AC through the windshield defrost vent and the floor vents in my horseless carriage. I only have 5 options for the vent airflow. I like having the AC come out the main dash vents blowing on myself. Plus, there is the gf factor of complaining about her feet getting cold as she wears mostly sandal type shoes in the summer.

I once had a rental car that had quite the sloped windshield and a interesting dash vent that I could aim right at the bottom of my V1 when I had it. Sorry, but I don't remember what make/model the rental was.
Give her some wool socks as gift!
 

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As Billy Mays says "It's just that easy!"

After contemplating various ways of setting up a fan on my R7 the answer is super simple and won't damage the detector physically or cosmetically or interfere with button operation.

Parts:
The 60mm fan posted above or similar. The 80mm will be way too big!
Glue.
Super small rubber drawer bumpers.
Hair tie.
USB extension cable.

Glue the rubber drawer bumpers to the fan just to make sure they're on there really good.

I have the fan pulling the air from the side vents and out the bottom of the R7. I know heat rises but, the fan moves plenty of air through the detector so, if you try this it really won't matter which direction the fan is blowing.

In one of the pics I took a small piece of tissue paper (the really thin paper for wrapping gifts) and there was enough airflow being pulled through the R7 side vents to hold the tissue paper there. It even stayed in place with me trying to shake it off the detector so, once again, there is plenty of airflow from this fan.

Oh, the fan weighs 27g with hair tie and without the cord and 37g with the cord and hair tie so, very minimal weight added. And yes, I will find/get a black hair tie instead of sangria sunrise pink. I tried rubber bands but, the hair tie is the perfect size and more than holds the fan securely in place.

I do have a cheapo $10 IR thermometer on the way so, I can test R7 temps with and without the fan too see how much of a difference it makes.

First two pics are for a visual fan size reference to the vents on the bottom of the R7. I found that having the fan at an angle (in the one pic) gives the best fan coverage over the R7 vent.

Why the fan?... yes, too much time on my hands is one reason. Will it help the R7 maintain it's detection range and possibly prevent heat related performance degradation? IDK. Will it extend the life of the R7? Probably as capacitors don't like heat! Will electromagnetic interference from the fan affect the detectors performance? IDK.

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Also, I'm not worried about the fan causing dust build up in the R7 as I pretty much always run the air in my car on recirculate so, it goes through the cabin air filter.
 
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nhdriver

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Easy DIY IMO so good job :) I always thought about it for summer when the RD sits out in the sun but run a small solar panel to a 12V DC fan just enough so it keeps running when there's a sun out and keep it cool. Never got to it though.
 

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Got the temp testing today with the fan. This was done indoors with no direct sunlight on the R7. I kept the detector in advanced exactly how I would use it with settings that would be considered "the norm".

Testing Room Temp. 78 :confused: (I currently have guests over that think this is still cold! I like it at 70)

Base temp. before turning on R7 = 71.5F (detector was in a different room with A/C on prior to testing)
Temp. after 45 min. (no fan) = 103.2F
Temp after 45min. w/fan = 82.8F

So, the fan reduced the R7 temp. 20.4F

Increase in R7 temp vs. starting temp.(71.5F) (no fan) = 31.7F
With fan = 11.3F increase.
 

Brainstorm69

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Got the temp testing today with the fan. This was done indoors with no direct sunlight on the R7. I kept the detector in advanced exactly how I would use it with settings that would be considered "the norm".

Testing Room Temp. 78 :confused: (I currently have guests over that think this is still cold! I like it at 70)

Base temp. before turning on R7 = 71.5F (detector was in a different room with A/C on prior to testing)
Temp. after 45 min. (no fan) = 103.2F
Temp after 45min. w/fan = 82.8F

So, the fan reduced the R7 temp. 20.4F

Increase in R7 temp vs. starting temp.(71.5F) (no fan) = 31.7F
With fan = 11.3F increase.
Where on the case are you taking the temp reading?
 

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