TIW---Triple Insulated Wire

(1)Description and definition

Triple insulated wire is a high-performance insulation wire, the wire has three insulation layer, the copper wire, is among the first layer is a golden brown polyamine thin film, the thickness of a few microns, but affordable 2 KV pulse high voltage, the 2nd is high insulation paint coating, the third layer is transparent nylon modified glass fiber layer, the total thickness of insulating layer is only 20-100 um, its advantage is high dielectric strength, between any two layer can withstand the safety of the ac 2000 voltage, electric current density.The advancement in order to reduce transformer weight and volume.

(2)Scope of application:

1.This standard is applicable to high-frequency high-voltage winding wire, referred to as high-frequency wire.

2.This standard stipulates the product technical requirements, inspection rules and packaging of high-frequency wires.

3.Different insulation layer material is suitable for different occasions, such as the insulation layer is ETFE fluron resistance, due to high temperature resistance and high insulation, and is widely used in high-frequency transformers, computer power supply, mobile phone charger;Insulation layer PFA&ETFE, used in communication, transformer insulated wire and magnetic components.

(3)Notes:

1. Storage and use environment.Three layers of insulated wire storage conditions is the environment temperature is 25 ~ 30 ℃, relative humidity is 5% ~ 75%, the retention period is one year.It is forbidden to store three layers of insulated wires in the environment of high temperature, high humidity, direct sunlight and dust.For three-layer insulated wires that exceed the shelf-life, the insulation breakdown voltage, withstand voltage and winding property must be re-tested before they can be used.

2. Precautions during winding.(1) three layers of insulation wire is to rely on the film to strengthen the insulation.If the film is subjected to mechanical stress or thermal stress and serious deformation, damage, umbrella safety standards can not be guaranteed.(2) transformer skeleton must not have burr, contact wire corner part to be smooth (forming chamfer).The inner diameter of the outlet nozzle shall be 2-3 times the outer diameter of the conductor.(3) cut the end of the wire is very sharp, do not close to the wire film.

3.Method of stripping the capsule.Special equipment such as three-layer insulated wire stripping machine and adjustable film stripping machine should be used to peel the film.It is characterized by melting the coating on one side and stripping on the other side, so the wire will not be damaged.If the ordinary wire stripping machine is used to remove the insulation film, the wire may be stretched thin or even broken.

4.Welding device.There are two devices for welding three layers of insulated wire.A static type soft solder groove, suitable for welding Φ 0.40 mm below the three layers of insulation.When brazing, move horizontally in the solder groove and vibrate the coil frame (as shown in the right picture) to complete the welding work in a short time.In order to prevent the film from melting due to long-time immersion in the solder groove, the method of repeating 2-3 times welding is also adopted.The other welding device is a jet solder groove with air cooling, which can weld multiple coil frames at the same time and is suitable for mass production.

(4)Parameter table

Xiamen Changjing Electronic Technology CO., LTD has an imported production line, which can produce two or three layers of insulated wire according to the requirements. The color can also be red, yellow, blue, green and other products selected by users in accordance with UL and VDE safety regulations, ROHS and REACH halogen free requirements.