TEC-TEG
Description
The thermoelectric generator is composed of high-strength bismuth telluride thermoelectric material, high thermal conductivity and high insulation DBC (direct bonding copper) ceramics and high-temperature solder, which is suitable for use in the environment where the hot end is 200 degrees.
characteristic
High performance, power generation efficiency can reach 5% under 200 ℃ temperature difference
High reliability, ordinary service life more than 10 years
High temperature resistance, hot surface can be used at 200 ℃
High fine flatness (± 0.02mm)
Conform to RoSH requirements and provide customized services
application area
Fireplace fan
Field barbecue
Power supply for low-power electronic equipment
Fire control system
Control system
Relevant definitions
| name |
Symbol |
Company |
| Seebeck coefficient |
α |
Volts/K |
| Hot surface temperature |
Th |
K |
| Cold surface temperature |
Tc |
K |
| Temperature difference |
ΔТ= Th-Tc |
K |
| Device resistance |
Ri |
Ohms |
| Load resistance |
RL |
Ohms |
| Open circuit voltage |
U open circuit |
Volts |
| Open circuit current |
I open circuit |
A |
| Maximum output power |
Pmax |
Watts |
Theoretical basis of thermoelectric power generation
According to Seebeck effect, open circuit (no load) voltage U=a (Th Tc)=a* ΔТ-- Formula ①
Considering load, output voltage=a* ΔТ* RL/(Ri+RL) --------------- Formula ②
Current in the circuit I=U/(Ri+RL)=a* ΔТ/ (Ri+RL) --------------- Formula ③
When no load RL=0, it is called an open circuit, and the open circuit current I=a* ΔТ/ Ri -------- type ④
From P=UI, output power=a* ΔТ* RL/(Ri+RL) *a* ΔТ/ (Ri+RL)
That is, P=a 2* ΔТ 2 * RL/(Ri+RL) 2 ------------ Formula ⑤
When Ri=RL, P=Pmax=a 2* ΔТ 2/(4Ri) -------------------- Type ⑥
According to formulas ⑤ and ⑥, the output power is proportional to the square of the temperature difference.
The maximum output power is inversely proportional to the internal resistance of the device.
According to formula ②, the larger the load resistance is, the greater the output voltage will be.
Application Considerations
● The generator module must be installed on a flat surface, and the flatness of the contact surface is required to be more than 30 microns.
● The pressing force must be no less than 12-15 KG/CM2.
● The temperature of hot surface shall not exceed 200 ℃.
Model of thermoelectric generator
Cold surface temperature=30 ℃; Hot surface temperature=200 ℃; Data with 170 ℃ temperature difference
| model | Ri (30 ° test) (Ω) | Open circuit voltage (V) | Open circuit current (A) | Maximum output power (W) | Length L (mm) | Width W (mm) | Thickness H (mm) |
|---|
| TEG-127365 | three point six five | eight point three three | one point three eight | two point eight seven | thirty | thirty | three point four one |
| TEG-127365 | three point six five | eight point three three | one point three eight | two point eight seven | forty | forty | three point eight six |
| TEG-127200 | two | seven point one four | two point zero four | three point six four | forty | forty | three point eight eight |
| TEG-127258 | two point five one | seven point three one | one point eight seven | three point four two | forty | forty | three point seven |
| TEG-127141 | one point four two | six point eight zero | two point three zero | three point nine zero | forty | forty | three point five four |
| TEG-127112 | one point one two | six point four six | two point six four | four point two six | forty | forty | three point two four |
| TEG-127076 | zero point seven five | six point one two | three point one five | four point eight one | forty | forty | three point zero six |
| TEG-199315 | three point one two | eleven point one nine | two point zero four | five point seven zero | forty | forty | three point eight eight |
| TEG-241165 | one point six four | eleven point six one | three point one five | nine point one three | fifty-five | fifty-five | three point zero five |
Sealing glue type
| Code |
Type of sealant |
colour |
describe |
| NS |
Unsealed adhesive |
|
|
| White |
silicon rubber |
white |
No corrosion, meeting Rohs requirements |
| Red |
silicon rubber |
gules |
No corrosion, meeting Rohs requirements |
| CS |
|
|
Meet customer customization requirements |
other
Optional graphite film available
