Waterproof fan long-term underwater work successfully developed

　　After years of unremitting efforts, our company uses advanced resin sealing technology, successfully developed a long-term fan of DC waterproof work underwater. Waterproof rating really achieve IP68.

　　All along, waterproof function has been a technical problem of axial brushless fan facing many manufacturers. People in the initial period, the use of high concentrations of varnish on the motor for soaking. After the varnish completely into the motor gap, and then dried in an oven. This motor is formed on the surface layer of the gel-like layer of protection, but the density of the protective layer is not big enough. Because of its structure is soft, easy to scratch hard objects outside. So a lot of water when the fan motor assembly has lost waterproof. Another varnish water can slow decomposition, they simply can not be in contact with the fluid water molecules. The process can only work for mild wet conditions. And the actual results are not satisfactory.

　　With PVD technology is widely used in the semiconductor industry. The last was a reference to the waterproof technology fan industry. The technology uses PVD vapor deposition techniques. Waterproof biomass gasification at high temperature will then slowly deposited on the surface of the motor at low temperature. The technology takes a long time, expensive. The motor will eventually surface to form a very strong protective layer. The protective layer does not decompose water. Hardness, basically afraid of the external force. However, due to the motor and the external power supply by wires. The protective layer due to the strong hardness, the assembly process often requires bending motor and wire bonding portion. Likely to cause cracks, and is unrecoverable. 50% failure rate. So the fan waterproof water running trials. First enter the water from inside the PCB solder wire, and then caused a short circuit between the electronic component pin burned. The technology is widely used in high humidity, no fluid water segments. Protection class up to IP55. Waterproof fan

　　Resin sealing technology. Resin sealing technology from the previous two proof techniques evolved. The technology for the production of a motor specially another mold. When the water-repellent treatment, the motor is set in a mold, and then poured into a low concentration in vacuo to an epoxy resin, the epoxy resin in a vacuum, such as water molecules to enter every corner of the same motor. To be completely filled after drying, and finally form a three-dimensional plastic overall. Absolutely can not see the outside of the motor structure. Motor is completely sealed. The motor can be long at work under the water. After drying the epoxy resin does not generate a chemical reaction with water. Waterproof rating to IP68. The cost is not more expensive than the PVD coating technology.