Thermal Management with Cooling Fans

Today's comfortable life and society is supported by advanced control systems, which may present many heat sources. To operate these devices 24 hours a day, 365 days a year, the devices require appropriate heat designs and heat measures. Oriental Motor offers a wide range of heat measure products centered on cooling fans to meet these requirements.

One method of cooling heat sources and enclosures is air cooling, which utilizes the air around us. One device that can use this air is a cooling fan, which uses the power of a motor to spin a propeller or impeller to blow air. Oriental Motor provides three types of fans: axial flow fans, centrifugal blowers and cross flow fans, using different air-blowing systems.

Highly Reliable Equipment Design Using Cooling Fans

Even if the temperature of a heat source rises, cooling is not required if the temperature will not affect the heat source itself or periperal equipment. However, if there is a danger that the heat will cause damage, some kind of cooling is required. There are two methods of cooling heat sources; natural air cooling and forced cooling. When forced cooling is required, cooling fans perform the appropriate ventilation and air-blowing. By using a cooling fan, the temperature of a heat source and its surroundings can be decreased, which enables extended equipment life and more reliable equipment design.

Natural Air Cooling of Closed Enclosure	Natural Air Cooling of Open Enclosure	Forced Cooling of Open Enclosure
When there is no heat source, or the temperature of the heat source is low and does not affect peripheral equipment.	When keeping enclosure temperature constant using natural air cooling, by opening air holes such as vents in the enclosure to create air flow.	When the temperature of the heat source is high, or when the heat density in the enclosure is high the temperature of the enclosure becomes extremely high.

 

In order to achieve highly reliable heat design, it is necessary to design the cooling system from a comprehensive perspective that considers the surrounding environment. To support these heat designs, Oriental Motor offers a wide range of hear measure products, from cooling fans to accessories such as finger guards and filters.

Cooling System Design that Considers the Surrounding Environment

There are various installation environments for equipment that uses cooling fans. In factories that perform processes such as cutting, polishing or welding, dust is mixed in with the air. If equipment with cooling fans is used in such an environment, dust and powdery dust may enter the inside of the equipment and become attached to the devices inside the equipment, which may cause malfunction, deterioration or break down of the equipment.

Also, equipment installed in environments where food machinery is washed may break down due to the ingress of water droplets. To ensure high reliability in such environments, cooling system design is needed to consider the surrounding environment.

In environments where ther is a danger of damage to equipment due to dust, insects, water, etc., Oriental Motor recommends the cooling module FM Series.

Cooling System Design that Considers Detection of Cooling Problems
and Prompt Maintenance

The mainframes and terminals and peripheral equipment of today's advanced control systems are connected via networks. Operating these devices without disruption requires air cooling using cooling fans based on appropriate heat design. However, the stop of cooling fans can cause a system failure, and periodic maintenance is required.

Fans with an alarm enable you to detect cooling problems in devices that use fans. This enables prompt maintenance and keeps the overall equipment in a state of high reliability. Oriental Motor offers a wide range of cooling fans with various alarm types including; stall, low-speed and pulse sensor.

Cooling System Design that Considers Energy-Saving and Noise
Reduction

Ambient temperature changes constantly in the place which equipment is installed. Thermostats make it possible for fans to operate only when cooling is necessary. By running the fans only as needed, energy can be conserved and noise can be reduced. In this environment, cooling system design with thermostats is needed.

When the inside temperature of the equipment is heated and reaches the thermostat's set temperature, the fans will start automatically. Once the inside of the equipment has cooled to a sufficient level, the fans will stop automatically.