The shell structure of the lamp comprises a shell with hollow openings at both ends; An annular boss fixed at the end of one of the openings of the housing; A fixed column arranged on the periphery of the annular boss, the height of the fixed column is less than the height of the boss, and an internal thread hole is arranged on the fixed column towards the inside of the fixed column; The upper cover is covered on the annular boss, and a fixing hole is arranged on the upper cover, which corresponds to the internal thread hole; The sealing ring is arranged between the annular boss and the upper cover, the sealing ring comprises a body and a lug, the lug extends outward along the radial direction of the body, a through hole is arranged on the lug, and the through hole corresponds to the internal thread hole; The compression screw successively passes through the fixing hole, through hole and internal thread hole to fix the upper cover and sealing ring on the fixing column. With the cooperation of boss, fixing column and lug, the whole shell structure can also get good sealing effect under the condition of thin thickness.
Aluminum shell is easy to dissipate heat, beautiful appearance and light weight. Many high-end electronic products use aluminum shell.
The aluminum shell of the motorcycle lamp can increase the service life of the lamp and make the LED lamp shell look elegant. However, the cost of aluminum lamp shell is expensive and the construction cost is very high. The lamp shell needs to be processed by machine tools. Therefore, some high-quality and medium quality LED lamps will accept aluminum lamp shells.
The most widely used metal raw material "aluminum profile" in the field of modern industry and construction industry is inseparable from its own advantages.
1. Compared with other metal materials, aluminum has strong plasticity and good productivity, and has good advantages for production.
2. It has good thermal conductivity and conductivity, and is outstanding in short-distance power transmission.
3. Small elastic coefficient and no spark due to collision and friction, which is the best performance in automobile technology.
4. Good surface treatment performance and bright appearance color.
The density of corrosion-resistant aluminum profile is only 2.7g/cm3, about 1 / 3 of that of steel, copper or brass (7.83g/cm3 and 8.93g/cm3 respectively). Aluminum shows excellent corrosion resistance under most environmental conditions, including air, water (or brine), petrochemical and many chemical systems. Conductivity aluminum profile is often selected because of its excellent conductivity. On the basis of equal weight, the conductivity of aluminum is nearly twice that of copper. Thermal conductivity the thermal conductivity of aluminum alloy is about 50-60% of that of copper, which is beneficial to the manufacture of heat exchangers, evaporators, heating appliances, cooking utensils, as well as automobile cylinder heads and radiators. Non ferromagnetic aluminum profile is non ferromagnetic, which is an important characteristic for electrical industry and electronic industry. Aluminum profiles cannot spontaneously ignite, which is important for applications involving handling or contacting flammable and explosive materials. Machinability the machinability of aluminum profile is excellent. In various deformed aluminum alloys and cast aluminum alloys, as well as in various states after the production of these alloys, the machining characteristics change greatly, which requires special machine tools or technologies. Formability specific tensile strength, yield strength, ductility and corresponding work hardening rate dominate the change of allowable deformation. Recycled aluminum has high recyclability, and the characteristics of recycled aluminum are almost the same as that of primary aluminum.
5.Compared with other metal materials, aluminum profiles have no metal pollution and toxicity, and the surface oxide layer has no volatile metals.