Lightweight and innovative design of LED lighting fixtures (figure)
LED products are gradually accepted by the market and consumers with the advantages of energy saving, environmental protection, high luminous efficiency, no heat radiation and long life. Compared with traditional lighting fixtures, LED lamps can save 60%~90% energy and last for 40,000 hours. With the continuous maturity of LED lighting technology, the products benefit from innovation in performance, appearance, and functional use, which promotes the rapid development of the entire industry.
The LED new downlight adopts the aluminum profile stamping process as the heat dissipation structure. The body has a rectangular through groove with a uniform annular shape, and the groove width is 1.2 mm. The heat sink is a bent structure, which is sequentially inserted into the rectangular through groove of the lamp cup body. Then the light source board (PCBA directly adheres to the bottom surface of the heat sink, and then uses a certain number of screws to lock and fix the whole. In order to ensure the heat dissipation effect, a small amount of thermal grease is applied between the light source PCBA and the bottom surface of the heat sink. The heat generated by the LED light source can be quickly and efficiently conducted to the heat dissipation structure. In addition, combined with the optical software simulation data, the optical scheme is designed, the LED chip and the light distribution lens are selected, and the external parameters satisfying the electrical performance parameters are required. Power supply. The luminaire renderings are shown.
Compared with the traditional die-cast aluminum and the aluminum alloy heat dissipation structure, the new downlight appearance effect chart consumes less energy and saves cost, significantly improves pollution, and greatly reduces the actual weight of the luminaire, while ensuring the assembly strength of each component. Under the premise, the material thickness is effectively controlled, and unnecessary assembly parts are avoided during the structural design process, thereby ensuring that the weight of the lamp is only 0.6kg or less, which is equivalent to 50% of the weight of the same size downlight. 70%, in line with the lighting market's requirements for light weight and light weight.
The insert type heat sink design has a great improvement on the heat dissipation effect. The heat sink is an aluminum profile with a high thermal conductivity, and its direction is perpendicular to the light source PCBA. Compared with other methods, the heat dissipation effect is better; the heat sink thickness is reduced, Increasing the number of heat sinks and increasing the effective heat dissipation area; the staggered insert structure is beneficial to air flow to increase the heat exchange coefficient, thereby improving heat dissipation. Through the calculation of the thermal resistance of the heat dissipation system, the heat dissipation performance of the design is confirmed, wherein the smaller the thermal resistance is, the better the heat dissipation performance of the system is, and the smaller the difference between the temperature of the chip and the ambient temperature is.
Among them, Rth is the thermal resistance, Tunction is the chip temperature, Tambient is the ambient temperature, and Q is the heat dissipation power.
LED new warehouse lights break through the traditional design concept, based on lightweight, multi-purpose innovative design goals, the development of new foldable warehouse lights. The design is inspired by the book, the way it is opened, and the flexible angle adjustment, which can meet the lighting needs of side lighting for many occasions.
The luminaire is composed of left and right symmetrical modules, and the middle is assembled by a connector, and the angle adjustment of 100 can be realized. The radiator adopts the structure scheme of aluminum extrusion processing. The process is simple. At the same time, the back of the lamp is designed with mounting brackets, and the bracket itself can be adjusted according to actual needs. The purpose is to adapt to the actual situation of the mounting surface in different use occasions. Through the adjustment of the angle of two dimensions, to achieve the directional illumination, and with the angle of illumination of the lens, the actual required illumination effect can be achieved.
The heat dissipation simulation and analysis of the shape and size of the square heat sink, the EFD software and the orthogonal design method were used to carry out the thermal simulation calculation, and the cross-sectional dimensions of the heat sink were preliminarily formulated. For heat sinks, shape, processing, size and material are several important factors that determine heat dissipation. The cross-sectional dimensions were improved by the actual temperature test results of the product. Among them, the luminaire also simulates harsh environmental conditions and conducts vibration tests to test the strength of the entire structure. Through repeated calibration and correction, the cross-sectional shape of the heat sink was finally determined.
LED new downlight: Under the premise of meeting the optical parameters, the existing structural design scheme is used, and the plastic sleeve for placing the power supply is additionally designed and installed on the radiator body, thereby realizing the product from the downlight to the high patio light. Conversion. And the weight of the whole lamp is only 1.2kg, which is obvious compared with the similar products in the domestic and the market.
3.2 With its innovative design, the new foldable warehouse lamp has certain technical advantages in this field: (1 The illumination angle of the lamp can be adjusted according to the customer's needs, making it suitable for a wide range of applications; (2 Light weight: Compared with the weight of traditional warehouse lights, the advantage is very obvious, and the installation is simple and easy to repair; (3 by simple design changes, to achieve waterproof IP65 level, it can be used for outdoor lighting, as a spotlight, Achieve the purpose of functional diversity.
The insert-type heat sink solution adopted by the new LED downlight realizes the light weight of the lamp through the design optimization of the structure, increases the effective heat dissipation area, and the vertical heat dissipation effect of the heat sink and the light source PCBA is good, between the heat sinks The air flow realizes natural air cooling, so that the overall heat dissipation system satisfies the heat dissipation requirements of the high-power downlight; the new LED warehouse lamp breaks through the traditional design concept, and the LED chip is evenly arranged on the extruded aluminum radiator, and the light source is dispersed. The heat makes the structure design of the luminaire more flexible, and achieves the goal of lightweight and multi-functionality through innovative thinking. 4.3 The structural design of the luminaire is malleable, and the transformation between different types of lamps is realized through simple design modification. , thereby effectively reducing development costs;
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