Vented enclosures, understanding your vent oprions
 

Vented enclosures, understanding your vent oprions

September 21, 2022by yongubox0

Vented enclosures, understanding your vent oprions

Proper venting is always a top priority when designing new goods and cases. Venting is crucial to the effective functioning of equipment because it keeps out liquid and solid pollutants while enabling gases to move quickly through enclosures. Enclosure protection vents that are both functional and well-designed safeguard delicate electronics and help preserve gaskets and seals.

 

PRINCIPAL GOAL OF VENTED ENCLOSURES

The primary focus of a vented enclosure’s design is to prevent nanoparticle escape via any openings in the enclosure. In addition to any pre-existing holes in the enclosure, employees may generate new ones as they engage with the procedure.

Typically, vented enclosures are built so that the speed of the air passing through the holes is between 0.5 to 1.0 meters per second. Making the enclosure airtight to the furthest extent feasible and maintaining uniform airflow at all openings are other important design goals.

 

 

CONVECTION TYPES FOR VENTED ENCLOSURES

Controlling the temperature of sensitive electronics housed in sealed enclosures relies on one primary factor: ventilation. Maintaining and cooling your delicate electronics helps prevent costly downtime caused by breakdowns, but only if the airflow is optimized inside and outside the enclosure. Hence, there are two distinct ways for air to move through cabinets and enclosures.

Passive Convection

A space is said to be passively ventilated without mechanical fans or other forms of mechanical ventilation. The air flux in this system is caused by the combination of wind speed and heat convection. Hot air rises due to a phenomenon known as heat convection.

Pros

  • Achieves cooling by the use of natural forces.
  • No need to pay for fossil fuels.
  • The item requires little to no upkeep.

Cons

  • Ventilation in complicated structures may be impossible without additional power sources or careful preplanning of passive ventilation systems to maximize the utilization of natural forces.

 

 

Forced Convection

Although passive ventilation has many benefits, it is not always feasible. Passive ventilation, for instance, may not be sufficient if the housing has a complicated design. For this purpose, the air is circulated using a mechanically-driven forced mechanism or fan. The term “active ventilation systems” describes these mechanical ventilation systems.

Pros

  • Proven working in all kinds of weather and all hours of the day.
  • Effectively venting mechanism.

Cons

  • Utilizes electric power.
  • Possesses a mechanism with moving components that inevitably break down.
  • It’s more expensive to operate and requires regular upkeep.

 

VENTING FACTORS TO CONSIDER

The following considerations are often essential when specifying venting solutions. The relative weight of each depends on context, use, and other variables.

IP Rating

Ingress protection (IP) rating is a crucial metric to use when deciding about ventilation. The IP rating is a two-digit number that shows how well an enclosure seals against the incursion of foreign substances and moisture. It is defined by International Electrotechnical Commission (IEC) Standard 60529.

Ventilation features and product requirements can be matched with the help of IP ratings. To give you an idea, an IP rating of 55 or 66 would be appropriate for a car’s lighting system, which is subject to dust and moisture but not necessarily submersion in water. This level of protection, i.e., IP44 might be appropriate for consumer electronic equipment that is not meant to be used in environments with significant amounts of dust or moisture. If built to resist more dust and water exposure, an electronic device’s IP rating might be raised to 67 or 68.

 

Airflow Requirements

The choice of a vent depends on both the IP rating and the airflow needs. The primary function of most vents is to allow the pressure inside and outside of a facility to become more or less equal.

More incredible airflow results in more rapid equalization and minor peak pressure differences. When pressure is applied to a system, its weakest link will be exposed; a well-constructed vent relieves this strain on delicate parts and keeps air moving freely. Vehicle sensors, for example, rely primarily on venting systems to maintain a constant internal pressure.

When evaluating airflow needs, consider the time to evacuate an enclosure and its operating pressures. Higher airflow vents reduce evacuation time and pressure differentials encountered by a system, making proper ventilation an essential part of lowering pressure differentials between the interior and outside of an enclosure.

 

 

Attachment Method

The technique of connection is yet another crucial aspect of venting. The efficiency of the venting might be reduced if it is not fastened correctly, even if the IP rating and airflow requirements are adequate. Screw-Fit, Snap-Fit, Press-Fit, and Weld-Fit are all standard methods for attaching enclosure protection vents.

 

CONCLUSION

Ventilation should be a top priority whenever you’re creating housing for your electronics and components. After all of the effort, you have put into determining the electronics and components for your project, the last thing you want to happen is for the interior of your enclosure to overheat, which would result in your hard work being rendered ineffective.

So, in brief

  • Overheating may occur if the ventilation apertures are obstructed, either accidentally or on purpose, as this prevents the inside temperatures of the enclosure from exceeding the design limitations.
  • To fully comprehend the numerous construction characteristics utilized in electrical equipment enclosures and what exposure they cause, it is highly recommended to research the standards and terminology.

 

YONGUBOX INSTRUMENT ENCLOSURES

Our electronic enclosures are developed with the sole purpose of improving the experience of the end user. Many aspects of our enclosures reflect this dedication:

  • A large selection of designs allows you to find the perfect fit for every performance requirement.
  • Built to last using sturdy materials, including intruded aluminium of the highest grade.
  • Elegant and airy layouts that give off the right vibe for your business.

YONGUBOX aluminium extrusions are used to protect instruments on a desk. Each has been meticulously crafted to meet our high standards and has its benefits. We have several different series of instrument housings, and here is a quick reference to the A, B, D, F, and G series:

 

Following are some of the critical features of YONGUBOX instrument enclosures.

  • High-tech desktop and portable enclosures in standard sizes, all of which have IP-rated ventilation
  • A clean, modern look with no visible screws
  • Aluminium pads can be anti-slip and anti-moisture, protecting internal components from damage.
  • Thickened panel
  • Handles with the high load-bearing capability
  • Enclosures with aluminium alloy shielded corners are more crash-resistant.
  • Easy-to-install side panels with a modular design.
  • Customizable, in addition to increasing the effectiveness of heat dissipation and giving the cabinet an air of industry and design, the dimensions, cuts, hole drilling, surface treatment, printing, and various colors contribute to improved heat dissipation.
  • Rubber foot pads can be slip-proof and moisture-proof, protecting internal components from damage.
  • Concise lines for visual designs
  • Curve components to improve the sensation of quickness

 

 

For further information and customized product of your requirements, follow our Facebook for more details: YONGUBOX.

You can also contact us at +86 13326782625 or write us at salesglobal@yonggu-enclosure.com.

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