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Guru

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Thin, Low-Thermal-Mass, Foil-type Heater

11/20/2007 12:15 PM

Dear Fellow CR4 Denizens,

I am looking for a thin, low-thermal-mass, rapid-heating, low-voltage heater. I've done a bit of looking already, but I haven't yet found anything quite suitable. Perhaps someone here on CR4 has either used or knows where to find something similar:

  • 6 x 8 inches to 8 x 10 inches. Dimensions not critical. Square or rectangular.
  • Very low thermal mass: temperature rise from room temp (~70-75 F) to 110 F within 15 to 30 seconds. Critically important.
  • Low voltage, ie, 6 V to 12 V power. Very important.
  • Uniform heat distribution. Important.
  • Flexibility not important but typically inherent in this type of heater.
  • Heater surface will be powder-coated on one side. Consequently, surface must be able to accept such coatings without loss of adhesion.
  • Opposite face of heater to be bonded to rigid, insulating backing plate.
  • Inexpensive technology suitable for mass production (20K to 50K units/year, possibly more or less). Very important.
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#1

Re: Thin, Low-Thermal-Mass, Foil-type Heater

11/20/2007 2:45 PM

Hi Europium!

Yes, I've used several types all from a company called Minco in the USA... they make the flexible very thin metallised heaters that stick (or not stick!) onto something that needs heating.

They have an extremely fast response time and can be made to the voltage and power requirements, as well as the shapes you want!

John. hope that helps!

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Guru
Engineering Fields - Electrical Engineering - New Member

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#2

Re: Thin, Low-Thermal-Mass, Foil-type Heater

11/20/2007 2:46 PM

try

minco

tayco

durex industries

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Guru

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#3
In reply to #2

Re: Thin, Low-Thermal-Mass, Foil-type Heater

11/20/2007 5:17 PM

I just submitted an RFQ to Minco reiterating what I posted here. Also found another outfit that manufactures so-called "Q-Foil" heaters, which look somewhat promising. We'll see what turns up.

Thanks!

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#5
In reply to #3

Re: Thin, Low-Thermal-Mass, Foil-type Heater

11/21/2007 9:47 AM

How uniform do you need the heating to be?

Graphite heaters are the most uniform, and aside from the Q-Foil technology, there is a woven type that is even more uniform and flexible but could not find it yet.

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#4

Re: Thin, Low-Thermal-Mass, Foil-type Heater

11/21/2007 8:12 AM

Special requirements sometimes demand special solutions. Companies like Minco are the obvious first place to look. If they can't meet your requirements, I would look at a custom heater. My knee jerk reaction is that a heater made from copper (because of its low specific heat) would be a good approach. Copper has temperature limitations, but for your low temperature requirement, this should not be a problem. Are you, by some chance, designing a heater for automotive seats?

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#6
In reply to #4

Re: Thin, Low-Thermal-Mass, Foil-type Heater

11/21/2007 7:54 PM

Are you, by some chance, designing a heater for automotive seats?

-----

No, the heater will be used in an inexpensive consumer product.

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