Electric heating tropical (line)

Application:
Working environment temperature of the air conditioner compressor design is commonly 4 ℃, when the ambient temperature is below zero degrees centigrade, compressor in the state of heat pump heating, often host difficulties or even barely boot to boot after a long bad working condition, so seriously affect the service life of the compressor, in order to compensate for this defect, configures auxiliary electric heating zone (line) through to the compressor crankcase shell short preheating, improve, improve the compressor working environment temperature, to ensure smooth starting and normal operation of the compressor.

Characteristics:
Air conditioner compressor crankcase electric heating zone (line) are not the national and industry standards, the company reference GB4706-92 general requirements for safety of household and similar electrical appliances, GBl408-78 "solid, electrical insulation breakdown voltage, breakdown strength and pressure test method", GB50131-1997 "rated voltage up to and including 450/750 rubber insulated cable," the general requirements of the first part, strict design, manufacture, the product has the following features:

*long service life
Electric heating zone (line) adopts inner core nichrome wire Cr20Ni80 for electric materials, outsourcing silicone rubber for insulating thermal conductive materials.Plus hotline in insulating outer woven stainless steel wire or tin plated copper wire for heat conduction medium.Service life can reach 1, 200 hours continuously, according to the QB/T 296-296 "household refrigerator electricity hotline" 5, 12.3, electric hotline should be able to withstand the rated input voltage of 1.15 times for the life test of 50 days to power).

*Good temperature resistance
Electric heating zone (line) as a whole with silicone rubber for insulating thermal conductive materials (including the power cord), working environment temperature for 30 '- C - 150 C.

*Good thermal conductivity
Electric heating tropical (line) is attached to the crankcase shell of the compressor, which can generate heat directly for thermal conduction and high thermal effect.
*Reliable electrical performance
Each electrical and tropical (line) factory has been tested with strict dc resistance, immersion high voltage and insulation resistance to ensure the quality.

*Reasonable structure, easy to install.
The electric heating tropical (line) is connected to the two ends of the heating zone with a spring hook. When assembling, the electric and tropical (line) is connected to the compressor, and the spring can be fastened.

*Strong designability
The heating length, lead length, rated voltage and power of the electric heating tropical (line) are determined by the user.

Technical condition
1.The design of the electric heating zone (line) length, rated voltage, power (generally no more than 100 w) power supply lead wire length determined by the user.
2.Electric heating zone (line) can work normally in the following environment:
A) environmental temperature 30 ℃, + 180 ℃;
B) the surrounding air relative humidity is not more than 90% (temperature 25 ℃)
C) working voltage 187V, 187 V, 50 HZ:
3.(25 ℃) under the condition of normal dc resistance deviation is less than the standard values of plus or minus 7%.
4.Electric heating zone (line) on the surface of working temperature should be uniform, deviation is not more than plus or minus 10%, the highest temperature is not more than 150 ℃.
5.Electric heating zone (line) should be able to withstand AC l800V / 1 m ㈩ pressure test, no breakdown or flashover phenomenon.
6.Electric heating zone (line) leakage current of 0.1 mA or less work temperatures.
7.Electric heating zone (line) after water immersion test, insulation resistance more than 100MΩ.

1:connection    2:heating wire 3:wiring card

4:silicone rubber lead wire 5:PVC silicone fiberglass sleeving  6:terminal 7:housing

8:reed 9:copper rivet       10:Stainless steel gasket 11:silicone rubber 12:spring