Features of Splash Proof Fan, Oil Proof Fan, Wide Temperature Range Fan, and G Proof Fan

Fans may be installed in special environments depending on the purpose and performance of the equipment. SANYO DENKI CO., LTD. offers fans with specific durability to suit the environment in which your equipment will be used. This time, we will introduce Splash Proof Fan, Oil Proof Fan, Wide Temperature Range Fan, and G Proof Fan.

Splash Proof Fan and Oil Proof Fan

If water or oil gets on a standard fan, it will adversely affect the electrical components inside and cause it to break down, but Splash Proof Fan and Oil Proof Fan can be used in environments where they may be exposed to water or oil. There are two major differences between waterproof and oil-proof fans and standard fans.

1. The motor and circuit board, which are electrical components, are coated with resin to prevent water and oil from penetrating (Figure 1).
2. By widening the gap between the blades and the frame, the blades are prevented from locking due to oil adhesion (Figure 2).

What is IP? What is the protection rating (IP code)?

When considering Splash Proof Fan, you often hear about IP, but what exactly does it mean?
The protection rating (IP code)​ ​indicates the degree of protection provided by electrical components inside equipment (in the case of fans, electronic components and motor coils) against the intrusion of foreign objects, with a rating of 0 to 6, and the degree of protection provided by electrical components inside equipment against the intrusion of water, with a rating of 0 to 8.

For example, in the case of IP65, the protection against the intrusion of foreign objects is "6, dustproof," and the protection against the intrusion of water is "5, protection against water jets." (Figure 3) The required protection level varies depending on the environment in which it is used, but generally, levels such as IP55, 65, 67, and 68 are widely used.
*Protection ratings (IP codes) are specified in IEC (International Electrotechnical Commission) 60529.

▼ Figure 3

Our Splash Proof Fan have a waterproof performance of IP54 to IP68.
What is IP code? It indicates the degree of protection against the intrusion of foreign solid objects and water.

IP54: It can operate stably even in an environment where it is splashed with water from multiple directions. It has inferior waterproof performance compared to IP56, but has an advantage in terms of cost.
IP56: Stable operation even in harsh environments where it is directly exposed to water jets from multiple directions.
IP68: The device will continue to function stably even if it is submerged in water for a long time. (※Cannot be used underwater.)

Wide Temperature Range Fan

Many standard fans will break down or stop working properly if they exceed the operating temperature range (-20℃ to +70℃) on either the high or low side. By strengthening the temperature resistance of the fan, it can operate in environments with harsh ambient temperatures.
SANYO DENKI CO., LTD. 's Wide Temperature Range Fan can be used in a wide range of temperature environments, from -40°C on the low side to +85°C on the high side. A wide operating temperature range has been achieved by using structures and circuits that allow components that are sensitive to both low and high temperatures to function without problems in either environment.

G Proof Fan

The "G" in G-resistance stands for acceleration. Fans installed in devices such as CT scanners are subject to high centrifugal acceleration. Standard fan specifications are unable to withstand high centrifugal acceleration, and in the worst case scenario, the fan may disintegrate inside the device. G Proof Fan we have developed in recent years employs a highly rigid aluminum frame and a structure in which the blades and rotor cover are molded as a single unit, increasing the joint strength between the parts and enabling it to withstand high centrifugal acceleration.

As you can see, there are special environments in the world that standard fans cannot handle. At SANYO DENKI CO., LTD., we have applied the various technologies we have developed to strengthen the durability of our fans, making them durable themselves. This eliminates the need for countermeasures on the equipment side, contributing to the miniaturization of equipment and a wider range of operating environments. If you are having trouble installing a fan in a special environment, please feel SANYO DENKI CO., LTD. to contact us.

Supervised by: SANYO DENKI CO., LTD. Cooling System Design Department

release date: 2021-03-08 00:00