Interview with Liu Yuequn, Institute of Electric Light Sources, Fudan University (Photos)


Interview with Professor Liu Yuequn from Institute of Electric Light Sources, Fudan University



With the gradual implementation of green lighting projects in China, energy-saving lighting has become an important research direction, and the innovation of energy-saving ballasts has become an important research topic in the energy-saving lighting industry.

In view of the shortcomings of the high power consumption of traditional ballasts for high-altitude gas discharge lamps in China, what should be done in the industry? What are the differences between energy-saving ring-shaped inductor ballasts and traditional ballasts? What is the development prospect? What impact does the innovation of energy-saving ballasts have on the development of the energy-saving industry?

Dongguan Yuandian Electronics Co., Ltd. is in the forefront of the same industry, it can represent the development direction of magnetic ballasts; its factory hardware equipment is completely standardized, large-scale, and automated; its production process uses machine-based automatic production operations, scientific management rationalization . This is the three reasons why the Institute of Electric Light Sources of Fudan University chose Dongguan Yuandian Electronics Co., Ltd. as a demonstration base for science and technology. In an interview, Professor Liu Yuequn commented.

Enterprises face the market and transform in time

The competition in the electronics industry is fierce, and the cost of materials has been rising. This has made the operation of various electronic industries face enormous challenges. In order to meet the requirements of environmental protection and efficiency, the design cost of each product is also increasing, making the difficulty of product marketing expand again. Market steel plates, instrumentation, transportation and other additional materials continue to rise. According to market statistics, the price of steel plates has increased by more than 25% from May and June last year, and the price of steel plates has doubled. In the face of these situations, how should companies deal with this?

On May 3, Professor Liu Yuequn came to Dongguan Yuandian Electronics Co., Ltd. to track and analyze the newly developed energy-saving ring-shaped magnetic ballasts, and issued an authoritative test report. Type loop inductor ballast HPS/MH (70-400) for data authentication. Professor Liu Yuequn said that lighting energy saving mainly achieves the purpose through device improvement, light source operation mode change and intelligent management. The ballast has a great effect. At present, the domestic high-flow gas discharge lamp uses traditional ballasts with high power consumption. To achieve the purpose of energy saving. In response to this situation, the energy-saving ballasts in the industry have done a lot of work, but the results are not great, even with slogans, and can not really be energy-saving, reliable and safe. He said that in the face of market competition, enterprises must adhere to the principle of innovation, and continue to develop representative energy-saving products. In the face of market competitiveness, it is necessary to adopt fully automated production and reduce production costs in machinery and equipment. Process and material structure must be constantly improving, and be the leader in the industry, to achieve mass production, stable product performance, and produce more energy-saving, more reliable and safer products.

Energy-saving toroidal inductor ballasts are more energy efficient, safer and more reliable

The inductive ballast is a device that works in series with the lamp in the circuit. It not only consumes active power, but also consumes reactive power, and the power factor is also low, resulting in a decrease in lighting power efficiency. Energy-saving toroidal inductor ballasts are quite different from traditional inductive ballasts. It is based on energy saving, its high efficiency, high safety factor, power factor can reach above 0.95, its own loss is small, stability and anti-environmental temperature characteristics are very stable, its products are fully automated, scaled and standardized in production; It is more energy efficient, more reliable and safer; but it is comparable in price to traditional ballasts.

The energy-saving toroidal inductance ballast is no different from the traditional EI magnetic ballast. It is a low-frequency inductor, and the ring ballast produced by the source hall is more compact in structure, and has a light and thin filial piety. Anti-high frequency electromagnetic radiation, no interference to the power grid and so on. In terms of production, the use of machined automatic production operations completely solves the problem of high labor costs, and has achieved the advantages of high production efficiency of EI type, solving the problem that the traditional EI type cannot be automated, and adopts a targeted design method. cut costs. In terms of cost, the traditional EI type cost is extremely high. If it can achieve energy saving and material saving, it can occupy a considerable market. The ring-shaped magnetic ballast produced by Yuandian has no waste of materials, realizing energy saving and saving. Two major advantages. In the characteristic structure, the EI steel sheet is pre-die, so that the magnetic leakage distribution is uneven, the efficiency is low, and the temperature rise is large. On the contrary, the ring ballast produced by the source hall uses the steel strip winding method to make the steel strip characteristics. Get fully utilized to achieve high efficiency and energy savings.


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