LED lamp with double layers of bulb shells

Abstract

The invention discloses an LED lamp with double layers of bulb shells. The LED lamp comprises a lamp body, wherein one end of the lamp body is provided with a lamp head, the other end of the lamp body is provided with the small bulb shell and the large bulb shell, the small bulb shell is covered with the large bulb shell, an electric appliance component is installed in an internal space of the lamp body, the bottom face of the small bulb shell is provided with an LED chip, and the bottom face of the small bulb shell is a certain distance higher than the bottom face of the large bulb shell. Due to the structure, light rays of the LED chip are gradually diffused through the two layers of the bulb shells, and the light-emitting angle of the whole lamp can be widened. Besides, judging from the appearance, the size of the lamp body cannot be reduced, and the radiating effect cannot be influenced.

Description

technical field [0001] The invention relates to an LED lamp, in particular to an LED lamp with a double-layer bulb. Background technique [0002] Traditional incandescent lamps have a relatively large luminous angle, but compared with LED lamps, they have high energy consumption and short service life. Now the markets in Europe and the United States are in great need of large-angle LED bulb lamps to replace traditional incandescent lamps. [0003] However, the light-emitting angle of LED chips is generally only about 120 degrees. To achieve a larger light-emitting angle, the angle can be enlarged through the divergence of the lens, but the light emitted through the lens is generally uneven, and there will be obvious bright and dark light visually. [0004] There is also a way to diffuse the angle through a milky blister. Such as figure 1 As shown, it is an existing common LED lamp structure. The LED chip 1' of the LED lamp is placed near the bottom of the bulb 2', and the ...

AI Technical Summary

Problems solved by technology

However, since the spherical cap structure of the bulb is larger than the hemisphere, when the height of the spherical cap increases, the circular area at the bottom will decrease, thereby causing the volume of the lamp body 3' for heat dissipation to also decrease. On the one hand, it will Reduce the space used to accommodate internal electrical components, and the more important aspect is to reduce the heat dissipation area, which is not conducive to the heat dissipation of LED chips

Although the size of the original lamp body can be kept unchanged, that is to say, the size of the circle at the bottom of the spherical crown can be kept unchanged, but the radius of the ball must be increased in this way, so that the entire bulb can be enlarged, which cannot meet the standard height of the lamp type of the same model. requirements

Images