Japan, the United States and Europe lighting manufacturers led the establishment of the industry group "Zhaga Consortium", the purpose is to easily design LED lighting products. Older manufacturers such as Philips Lighting BV, OSRAM GmbH, Panasonic, Toshiba and General Electric have joined the group. It is planned to standardize an optical engine (a module composed of LEDs, drivers, and optical components) embedded in an LED lighting fixture, and submit it to the International Electrotechnical Commission (IEC) as an international standard.
After standardization, there will be more and more compatible optical engines, and it is easy for lighting fixture manufacturers to purchase parts and save the trouble of designing the optical engine alone. The cost reduction of lighting fixtures will also accelerate. For the new manufacturers involved in the LED lighting equipment business, there are also benefits to lower the barrier to entry.
Standardized by the Zhaga Consortium is the smallest entry specifically for embedding an optical engine in an LED luminaire. Parts related to product performance such as life and quality are not included in the standardization entry. Based on the data of the Zhaga Consortium.
In recent years, the demand for LED lighting products has become larger and larger. To take this opportunity to expand the LED lighting market, it will not cost energy for several years to achieve standardization. Zhaga Consortium Secretary-General Manno & mid dot; Menno Treffers said, "I hope that the rapid development of standards within Zhaga is the common idea of ​​all members." The standard will target high-output lighting fixtures with a beam of more than 1000 lm, first for store and outdoor lighting products, and then for standardization for office and industrial use.
Maintain a balance between competitive space and market expansion
Zhaga will standardize the smallest items specifically used to embed an optical engine into a lighting fixture. For example, the mechanical interface (shape and lamp holder, etc.), thermal interface (heat dissipation path, etc.), electrical interface (power supply, insulation, grounding, control, etc.) and optical interface (light beam, color, and light emission characteristics) will be uniformly defined when not for life. And product quality setting standards such as quality. Performance requirements vary by country and region, and for vendors, performance is key to product differentiation.
The internal structure of the optical engine is also not a standardized object. Although the beam standard is specified, the number of LEDs to be packaged in order to obtain a light beam, the driving method, and the like are not specified. Therefore, improving performance and reducing costs will become a competitive point for optical engine manufacturers.
The characteristics of LED brightness and luminous efficiency are still in the development stage. Every time a new LED product appeared, the lighting manufacturer had to redesign the lighting fixture. It can be said that the future standard will be a measure to fully retain the competition space of manufacturers and also effectively expand the LED lighting market.
1. The blades of an axial fan push air to flow in the same direction as the shaft. The impeller of an axial fan is similar to the propeller. When it works, most of the airflow is parallel to the shaft, in other words along the axis. When the inlet airflow is free air with zero static pressure, the axial flow fan has the lowest power consumption. When operating, the power consumption will increase as the airflow back pressure rises. Axial fans are usually installed in cabinets of electrical equipment, and sometimes integrated on motors. Because of their compact structure, they can save a lot of space and are easy to install, so they are widely used.
Its characteristics: high flow rate, medium wind pressure
2. Centrifugal fan
When the centrifugal fan works, the blades push air to flow in a direction perpendicular to the shaft (ie, radial), the air intake is along the axis direction, and the air outlet is perpendicular to the axis direction. In most cases, the cooling effect can be achieved by using an axial fan. However, sometimes if the airflow needs to be rotated by 90 degrees or when a larger wind pressure is required, a centrifugal fan must be used. Strictly speaking, fans are also centrifugal fans.
Its characteristics: limited flow rate, high wind pressure
3. Mixed flow fan
Mixed flow fans are also called diagonal flow fans. At first glance, mixed flow fans are no different from axial flow fans. In fact, the air intake of mixed flow fans is along the axis, but the air outlet is along the diagonal direction of the axis and the vertical axis. Because the blades and outer cover of this fan are called conical, the wind pressure is higher. Under the same size and other comparable performance, the centrifugal fan has lower noise than the axial fan.
Its characteristics: high flow rate and relatively high wind pressure
4-flow fan
Tubular wind flow can produce a large area of wind flow, which is usually used to cool large surfaces of equipment. The inlet and outlet of this fan are perpendicular to the axis (see Figure 1). The cross flow fan uses a relatively long barrel-shaped fan impeller to work. The diameter of the barrel-shaped fan blade is relatively large. Because of the large diameter, it can use a relatively low speed on the basis of ensuring the overall air circulation. , Reduce the noise caused by high-speed operation.
Its characteristics: low flow rate, low wind pressure
Axial Fan,Axial Flow Fan,Tube Axial Fan,Axial Exhaust Fan
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