MechaTronix: MODULED 9950-B LED Star heatsink for 3590?

salmonetin

salmonetin

Well-Known Member
MODULED XTRA 9950-B

COB Family:
CXA13, CXB13, CXA15, CXB15, CXA18, CXB18, CXA25, CXB25

...where you see.. it ok for cx_3590?.... ...:wall:

...ni siquiera soporta los cx_3070... por supuesto puedes atornillar el led o cob que quieras... pero no pretendas que funcione bien en pasivo...

http://www.led-heatsink.com/products_search.php?webTag=Cree_XLamp_LED_Cooling&module=246&thermal=1&v1=&Diameter=&Height=

..this is the models with suport for 3590...

...for 3590 they use the giga model...not minus..and maybe more... Abiqua... some kilos of mass bro...
...inclusive on active... her active models dont suport the 3590 models...
....from my pov depends on how soft or hard we can run this cobs....
...running soft... maybe...but its my inexpert opinion...

...my two cents..



Saludos
 
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Abiqua

Abiqua

Well-Known Member
sanjuan said:
I am skeptical of Mechatronix, Abiqua. The Giga HBG is only designed to mount a 160W driver (3.3A). Picturing these up high in a factory during the summer . . .
View attachment 3639385
Click to expand...
It's not at all Mar's spicy :)


but yeah, I think the Mech's need some more tweaking and they are mildly spicy like Cock Sauce, not overwhelmingly on fire by any means............Just that CXA's [3k kelvin 4.66/joules vs 4.65 joules @3500K] on same wattage, dissipating more Pd because of their reduced efficiency [and if you want to get technical, + .01 j/umol/s] and mounted on Arctic 11+; run cooler than the equivalent CXB's on the Mechs...The A11's have more mass [a positive] and reduced airflow characteristics [a negative imho] [robin brought that up a bit ago...:)] while the mechs have reduced mass and "increased" airflow characteristics, speaks for itself imho...
 
thetr33man

thetr33man

Well-Known Member
Personally I would pay the extra 1.50 to get the 9980-B, even if its not necessary if you go by recommended surface area for these cobs.
Im going by this data when calculating dissipation requirements.

@64%
(8 ) CXB3590 3500K CD @ 700mA (23W ea) $380
(1) HLG-185H-C700 $65
184 dissipation W ->66W heat ->8.25w/cob
passive cooled heatsink 7920cm² -> 4.23"X44" $68 = 990cm^2/cob

The 9950 has Total cooling surface (mm²): 104563 or 1045cm^2 which SHOULD be plenty to cool cobs at this current level, especially considering that the recommendation of 990cm^2 is based upon bar style heatsinks which are typically less efficient than radial fin style is....

Salmonetin, if you would read the whole thread, you would see that the company confirmed these will work and even mounted one to test it.
 
V

VegasWinner

Well-Known Member
Abiqua said:
Mechatronix can claim whatever they want.....take your own chances @700ma....Their rth values aren't even close to a real world calc unfortunately....guess you will find out, I did.

Kind of disappointing too...they look purty, but mass imho is what is all worth...You need 400+grams of mass for 15W-20W of dissapated heat imho...for passive.

I weighed those slugs @ 200 grams +- 5 grams....again imho its just not enough for what they claim.
Click to expand...
The 99mm x 80mm weighs 565 grams. Peace
 
V

VegasWinner

Well-Known Member
thetr33man said:
Personally I would pay the extra 1.50 to get the 9980-B, even if its not necessary if you go by recommended surface area for these cobs.
Im going by this data when calculating dissipation requirements.

@64%
(8 ) CXB3590 3500K CD @ 700mA (23W ea) $380
(1) HLG-185H-C700 $65
184 dissipation W ->66W heat ->8.25w/cob
passive cooled heatsink 7920cm² -> 4.23"X44" $68 = 990cm^2/cob

The 9950 has Total cooling surface (mm²): 104563 or 1045cm^2 which SHOULD be plenty to cool cobs at this current level, especially considering that the recommendation of 990cm^2 is based upon bar style heatsinks which are typically less efficient than radial fin style is....

Salmonetin, if you would read the whole thread, you would see that the company confirmed these will work and even mounted one to test it.
Click to expand...
I did. Peace
 
Greengenes707

Greengenes707

Well-Known Member
Yes it will fit that was never a question...I have one. Did they confirm it will run a 3590 at 50w and maintain a Tc of 55C? The problem is it fits with open space underneath the cob. Not a total thermal bond to the heatsink. Like I said before.

My commercial example is optics using their active cool models and pushing 2++a. They have more fried out cobs than any company I have seen/heard about. I bet good money that the thermal gaps have a lot to do with it.

In any matter...
We experienced and data readers say no cause there are better options that don't skimp in any area...pin sinks
 
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salmonetin

salmonetin

Well-Known Member
ModuLED_Giga-HBG_High_Bay_LED_Cooler_ø152mm_with_driver_connection_system.pdf

...pag 3 ...for veros...
..pag 5 and 6...for cree....

...im only show some info... on diy we can do... extreme things... or crazy things..

...time tell us more....
 
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welight

welight

Well-Known Member
thetr33man said:
Personally I would pay the extra 1.50 to get the 9980-B, even if its not necessary if you go by recommended surface area for these cobs.
Im going by this data when calculating dissipation requirements.

@64%
(8 ) CXB3590 3500K CD @ 700mA (23W ea) $380
(1) HLG-185H-C700 $65
184 dissipation W ->66W heat ->8.25w/cob
passive cooled heatsink 7920cm² -> 4.23"X44" $68 = 990cm^2/cob

The 9950 has Total cooling surface (mm²): 104563 or 1045cm^2 which SHOULD be plenty to cool cobs at this current level, especially considering that the recommendation of 990cm^2 is based upon bar style heatsinks which are typically less efficient than radial fin style is....

Salmonetin, if you would read the whole thread, you would see that the company confirmed these will work and even mounted one to test it.
Click to expand...
guys I tested these for our kit and thats why we went pin fin and not LSB9980, it wont do the job
Cheers
Mark
 
J

J-Icky

Well-Known Member
Ok so would the 9980 work for a vero 18 at 1050mAh or would the metal under the LES be exposed at spots still, like the 3590?
 
thetr33man

thetr33man

Well-Known Member
welight said:
guys I tested these for our kit and thats why we went pin fin and not LSB9980, it wont do the job
Cheers
Mark
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I guess Im curious why it wont do the job? Not trying to start an argument, but the surface area looks like plenty, and from what I have read, the radial fin style should be more efficient than standard bar style heatsinks. Do you think a copper shim under the COB would help? I saw greengenes mentioned pushing 2A plus, obviously thats not what I was considering. I was thinking 36w max (36v @ 1A) and most likely 25w for these... From the figures I found a cxb3590 36v at 700mA produces about 9 watts of heat.... seems like you wouldnt need a tank of a sink to dissipate that? I wouldnt recommend these for anyone wanting to push serious power, but my personal interest is in low power and high efficiency, for that application I dont think you would need much.

I was considering the issue of the screw hole under the cob, anyone have an idea how to lessen that problem? I was thinking a headless screw or nail might be a reasonable answer. Take a aluminum nail/rod that size and snip the head off, tap it into the hole and that should considerably lessen that issue....
 
welight

welight

Well-Known Member
thetr33man said:
I guess Im curious why it wont do the job? Not trying to start an argument, but the surface area looks like plenty, and from what I have read, the radial fin style should be more efficient than standard bar style heatsinks. Do you think a copper shim under the COB would help? I saw greengenes mentioned pushing 2A plus, obviously thats not what I was considering. I was thinking 36w max (36v @ 1A) and most likely 25w for these... From the figures I found a cxb3590 36v at 700mA produces about 9 watts of heat.... seems like you wouldnt need a tank of a sink to dissipate that? I wouldnt recommend these for anyone wanting to push serious power, but my personal interest is in low power and high efficiency, for that application I dont think you would need much.

I was considering the issue of the screw hole under the cob, anyone have an idea how to lessen that problem? I was thinking a headless screw or nail might be a reasonable answer. Take a aluminum nail/rod that size and snip the head off, tap it into the hole and that should considerably lessen that issue....
Click to expand...
You could make an adapter to mount on top, know anyone with a mill or cnc, preferably from copper, so yes a shim and if its machined flat that removes any concerns about the flatness of the heatsink, also mount the cooler to alum rail etc as that will allow heat to pass out, a path to ambient when designing a total system should always be considered
Cheers
Mark
 
V

VegasWinner

Well-Known Member
welight said:
You could make an adapter to mount on top, know anyone with a mill or cnc, preferably from copper, so yes a shim and if its machined flat that removes any concerns about the flatness of the heatsink, also mount the cooler to alum rail etc as that will allow heat to pass out, a path to ambient when designing a total system should always be considered
Cheers
Mark
Click to expand...
funny. your photo is a heat sink, you do not like. just noting. Why not a picture of a pin heat sink, you seem to like those more than others. Just noting. Not trying to start a fight with you, just observing the obvious. I will determine flatness of the afore-mentioned heart sinks when they arrive. I love facts. peace
 
welight

welight

Well-Known Member
VegasWinner said:
funny. your photo is a heat sink, you do not like. just noting. Why not a picture of a pin heat sink, you seem to like those more than others. Just noting. Not trying to start a fight with you, just observing the obvious. I will determine flatness of the afore-mentioned heart sinks when they arrive. I love facts. peace
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I dont have an issue with any Mechatronix heatsink, the flatness issue was raised by GG, I love the active coolers(avatar), the pin fin sink project is about passive cooling without the need of a fan and associated driver.
 
V

VegasWinner

Well-Known Member
welight said:
I dont have an issue with any Mechatronix heatsink, the flatness issue was raised by GG, I love the active coolers(avatar), the pin fin sink project is about passive cooling without the need of a fan and associated driver.
Click to expand...
It's all good I'm just giving you a hard time. Peace
 
ACitizenofColorado

ACitizenofColorado

Well-Known Member
Greengenes707 said:
I know you are all hot to trot on your new kits...but I've been on pin sinks for a while bro.

Do you doubt me for some reason? Do have proof showing either me blowing smoke or a sink that fits that I over looked???
I've tried the giga, 2 mega's and an activecool.
They all have the same issue, and they were designed for 3070/3590. The ones that I actually would like to use do not come close to the required flat surface area needed.

So again...my statements come from REAL WORLD USE in addition to data sheets and stats. If you have something I overlooked, or where I have shown anything false...please present it.
Click to expand...
@greengene707
Can you post links to your links for the pin heat sinks? Thanks....
 
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