Lamp body and LED-BR lamp

Abstract

The invention discloses a lamp body and an LED-BR lamp. The lamp body comprises a plastic lamp shell and a radiator. The plastic lamp shell is composed of an upper portion, a neck portion, a middle portion and a lower portion which are integrally and sequentially connected from top to bottom and all hollow, and the two ends of the upper portion, the two ends of the neck portion, the two ends of the middle portion and the two ends of the lower portion are open. The upper portion is of a bowl-shaped structure. The wide end of the upper portion is connected with a light transmitting cover. The narrow end of the upper portion is connected with the upper end of the neck portion. The lower portion is connected with a lamp holder. The upper end of the neck portion stretches in an inner cavity of the upper portion in the axial direction to form a cylindrical part. The cylindrical part, the neck portion, the middle portion and the inner cavity of the lower portion communicate with one another to form a power source bin. The radiator is of a bowl-shaped structure. The narrow end of the radiator extends in an inner cavity of the radiator in the axial direction and is provided with a cylindrical boss, and an LED light source plate is installed on the surface of the cylindrical boss; and the radiator is embedded in the inner cavity of the upper portion and enables the cylindrical boss to be arranged outside the cylindrical part in a sleeving mode, and then the outer wall of the radiator is tightly attached to the inner wall of the upper portion. By using the lamp body, the LED-BR lamp has the advantages that the lamp body is integrally formed by the plastic lamp shell and the radiator which are matched with each other, the structure is simple, installing is convenient, electric shock risks are avoided, and automatic production is easy to achieve.

Description

technical field [0001] The invention relates to a lighting device, in particular to a lamp body and an LED-BR lamp. Background technique [0002] BR (Backscattered Radiation) lamp is a reflector lamp that emits light evenly in a certain direction, and LED light is also directional, so it can be perfectly matched with BR lamps to form LED-BR lamps. At present, LED-BR lights have been widely used in home, business, office and other places for lighting. [0003] LED-BR lamps generally include a lamp body and a reflective cup placed in the lamp body. The diameter of the reflector cup is similar to the maximum outer diameter of the lamp body, so LED-BR lamps usually need to indicate the maximum outer diameter, such as BR30 for LED-BR lamps The maximum outer diameter is 30 inches (30 / 8×25.4=95 mm). The lamp body of the LED-BR lamp is required to have heat dissipation and electrical isolation functions. The lamp body of the existing LED-BR lamp is generally a metal lamp body or a...

AI Technical Summary

Problems solved by technology

The lamp body of the LED-BR lamp is required to have the function of heat dissipation and electrical isolation. The lamp body of the existing LED-BR lamp is generally a metal lamp body or a plastic-wrapped aluminum (plastic-wrapped aluminum integrated) integrated lamp body, but this The two lamp bodies have the following problems: If a metal lamp body is used, on the one hand, since the metal (such as copper, aluminum, etc.) It is easy to cause the risk of electric shock; on the other hand, due to the large outer diameter of the metal lamp body, the amount of metal materials is large and the cost is high; Inconvenient to process the plastic-clad aluminum structure and not easy to automate production; on the other hand, due to the large outer diameter of the plastic-clad aluminum integrated lamp body, the aluminum consumption is large and the cost is high

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