The glass fiber sleeve developed and produced by SUNBOW has a breakdown voltage of more than 7.0KV, super high tear resistance and wear resistance. In the field of new energy vehicles, it has successfully replaced a Japanese brand and used it in X Peng cars. , once again defeated a strong international first-line brand.

In the evolution process of the drive motor of new energy vehicles, when the first generation of new energy vehicles appeared, the drive motor insulation engineers chose ordinary glass fiber sleeves. The cruising range of the original new energy vehicles was not high, about 300 kilometers. , The motor does not generate heat during operation, and the ordinary glass fiber sleeve can also handle it. In the later new energy vehicles with a cruising range of more than 500 kilometers, due to the increase in the running time of the drive motor and the overall design of the car's appearance, the volume of the motor cannot be increased, and the heat generation is obvious. Insulation flame retardant problem. At this time, the second-generation design scheme appeared for the insulation of the drive motor, which is the double-layer glass fiber sleeve. The wall thickness of the double-layer glass fiber sleeve is relatively thick, which is about 50% thicker than the ordinary glass fiber sleeve, and the effect is particularly good. , which dominated for a few years after 2016.

By 2019, as new energy vehicles develop towards higher battery life and lighter weight, some copper wire designs need to be eliminated inside the motor, and the space saved can reduce weight. At this time, SUNBOW's third-generation product specially designed for drive motor insulation, the appearance of modified glass fiber sleeve, directly floats on the air outlet. The breakdown voltage of this modified glass fiber sleeve is more than 7.0KV, which can withstand automobiles. After a catastrophic impact accident of 120 kilometers, the drive motor did not catch fire, and the 12-meter free fall test was still as stable as Mount Tai. Every day, the SUNBOW front desk operator received 5-10 inquiries from new customers about this fiberglass sleeve. ( PET braided sleeve)

Once, SUNBOW went to X Peng Automobile for technical exchange, and found that X Peng Automobile's drive motor is still using ordinary glass fiber casing, using a Japanese brand. We just showed the SUNBOW fiberglass sleeve PPT to the customer, and the engineers of X peng were shocked by the SUNBOW fiberglass sleeve. The engineer of X peng said: "This fiberglass sleeve is designed for us. ." The high evaluation of SUNBOW fiberglass casing by customer engineers is a blow to the peers. ( PTFE sleeve)

The next thing is a matter of course: SUNBOW sent samples, the customer tested various performance parameters of the glass fiber sleeve, the motor drive test, and finally completed the order, all very smoothly. During the long-term project follow-up process, SUNBOW has been actively cooperating, designing paths for customers, providing on-site technical support, and establishing a good relationship of mutual trust with customer engineers.