Industry News

The cooling fans in refrigerated display cabinets are often mistakenly regarded as merely performing the basic air circulation function. In fact, their performance directly affects the temperature control accuracy, energy efficiency level, and operational reliability of the entire machine. Currently, as commercial refrigeration equipment increasingly demands energy efficiency, noise reduction, and environmental adaptability, mainstream application scenarios - including large supermarket refrigerators, beverage cold chain display cabinets, convenience store low-temperature display cabinets, medical refrigeration systems, and various specialized cold chain equipment - have generally been upgraded from traditional AC cooling fans to high-efficiency, low-power consumption, and high-protective-grade DC waterproof cooling fans.

The previous text has already elaborated on the crucial role of waterproof design for the fans used in outdoor advertising screens; this article will focus on another key technical selection factor - the advantages and necessity of using centrifugal fans in the heat dissipation system of outdoor advertising screens.

The industry generally focuses on the brightness performance of outdoor advertising screens. However, actual engineering experience shows that the cooling system - especially the reliability of the cooling fans - is the key factor that affects the long-term stable operation and service life of the equipment. As products evolve towards higher brightness, thinner design, and higher integration, and are subjected to harsh outdoor environments such as high temperatures, high humidity, dust, and strong sunlight, the load on the cooling system continues to increase. A large number of on-site failure cases indicate that the fundamental causes of characteristic problems such as black screen, screen distortion, system freeze, and motherboard abnormalities are often not the display screen or the main control module themselves, but the runaway temperature rise and the accumulation of thermal stress on components caused by cooling failure. Therefore, scientific selection and reasonable configuration of cooling fans have become an indispensable core in the reliability design of outdoor advertising screens.

During the daily use of computers, you may have noticed that some cases are equipped with cooling fans while others are not. This does raise a question - are cooling fans truly indispensable? And what actual factors should be considered when deciding whether to install them or not? Next, we would like to present the key points of case cooling fan configuration in a clear and helpful manner, to assist you in making a more suitable choice with greater peace of mind and composure.

A large number of outdoor charging stations operate stably during non-rainy seasons, but they frequently experience malfunctions during the rainy season. Some equipment even had to be shut down or scrapped due to severe damage. The industry generally attributes such problems to the insufficient protection level causing water infiltration, especially the moisture on the circuit boards. However, based on the statistical analysis of operation and maintenance monitoring data from multiple regions in recent years, approximately 92.3% of the rain-related faults during the rainy season were not directly caused by water intrusion into the circuit boards, but originated from a long-neglected key component - the cooling fan. This article will systematically explain the technical reasons why the cooling fan becomes the main cause of faults in high-humidity and rainy conditions, focusing on its structural characteristics, environmental adaptability, and failure mechanism.

With the continuous improvement of the intelligence level of electronic devices, heat dissipation has become a crucial aspect for ensuring the stable operation of the system. As the core heat dissipation component, the selection of the cooling fan needs to comprehensively consider multiple key parameters. This article will systematically elaborate on its common technical parameters and their engineering significance.

In fluid mechanics, static pressure and dynamic pressure (air volume) are two fundamental concepts used to describe the pressure of a fluid. Both stem from different forms of fluid energy and are the most confusing parameters when selecting a cooling fan - many people mistakenly believe that "the stronger the wind, the better", but they fail to consider the compatibility between static pressure and dynamic pressure (air volume), ultimately resulting in poor cooling performance. Let's first clarify the core differences between the two, and then specifically explain the key points for selecting a cooling fan.

Industrial equipment, energy storage systems, outdoor communication and new energy equipment, etc. all have strict requirements for cooling fans: they need high air volume, long lifespan, and also need to be waterproof, dustproof, and corrosion-resistant. Therefore, "how to choose a reliable manufacturer of waterproof cooling fans" has become a key concern for engineers and purchasers. This article systematically sorts out the selection key points from four aspects: industry demand, technical standards, core parameters, and manufacturer strength, and recommends the manufacturer with the ability to source custom products -- Shenzhen Fuqingda Electronic Technology Co., Ltd.

Cooling fans are widely used in various industrial equipment, ranging from small computer hosts to large automation systems. In DC heat dissipation fans, common lead-out configurations include two-wire, three-wire, and four-wire, etc. What are the differences in function realization and control methods among these? This article will take DC fans as an example to systematically explain their internal structure composition and the functional principles of each component.

If you are currently conducting the selection of cooling fans for industrial equipment, communication systems, new energy equipment, or medical equipment, etc.;
or if you are facing issues such as excessive noise, insufficient lifespan, and high failure rate in actual applications. And you are looking for a cooling fan that can meet all your requirements in all aspects, then how can you determine the superiority or inferiority of a cooling fan?
Based on measured data and industry practice, we propose the following objective judgment:
"The comprehensive performance of a cooling fan is not only influenced by brand reputation, but also depends on the matching degree of its core parameters, the level of material and process, the verification results of reliability, and the adaptability to the application scenarios."