Bulb lamp structure

Abstract

The invention discloses a bulb lamp structure which comprises a lamp socket, a lamp holder, a circuit board, a bulb shell, a plurality of chips, a radiator and a double-sided board, wherein the lamp holder is matched with the lamp socket; the circuit board is used for driving the LED chips to work; the bulb shell covers the chips to be matched with the lamp holder; the chips are distributed with LED lamp beads; the double-sided board is used for connecting the chips with the circuit board; the lower end edge, adjacently connected with the lamp socket, of the lamp holder is provided with an air inlet; the lower part of the radiator forms a ring-shaped cover seat to be matched in the lamp holder; a plurality of sheet substrates upwards extend from the upper end of the ring-shaped cover seat at interval; a cavity is defined by the sheet substrates in a surrounding manner; the lower part of the cavity is communicated with the air inlet of the lamp holder; the circuit board is longitudinally arranged in the lamp holder; the chips are respectively matched on the outer surfaces of the sheet substrates; and an air outlet which is exactly aligned to the top end of the radiator is arranged at the center of the top end of the bulb shell. The bulb lamp structure is not only capable of well solving the junction temperature radiating problem of the LED bulb lamp chips, but also capable of effectively realizing the large irradiation angle, and is beneficial for automatic production.

Description

technical field [0001] The invention relates to a lighting device, in particular to a bulb structure imitating a traditional incandescent lamp with LED as a light source. Background technique [0002] LED is made of electroluminescent semiconductor material, which has excellent characteristics such as low voltage, high efficiency, good monochromaticity, strong applicability, good stability, short response time, long life, and no pollution to the environment; Widely used in lighting, decoration and other fields, a LED bulb based on LED chips came into being. An important difference between this kind of LED bulb and traditional incandescent bulbs is that the luminous body in the bulb is replaced by the LED chip. substitute. [0003] like figure 1 , 2 As shown, the structure of the common LED light bulbs currently on the market includes a lamp base 1', a lamp base 2' connected to the lamp base 1' as a heat sink, a circuit board located in the lamp base 2', and a circuit boar...

AI Technical Summary

Problems solved by technology

In addition, the chip 3' of this LED bulb is placed flat on the upper end of the lamp holder 2', and its irradiation direction is mainly concentrated on the top of the bulb, so it also has the problem of a small lighting range.

Furthermore, since the circuit board and the chip 3' are connected through the connecting wire 5', such an arrangement does not utilize automatic implementation. Therefore, the current LED bulbs have limited production capacity and high production costs.

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