CN202580881U

CN202580881U - Light-emitting diode (LED) lamp bead

Info

Publication number: CN202580881U
Application number: CN2012202649855U
Authority: CN
Inventors: 程兴世; 宋英明; 蒋汶达
Original assignee: SHANDONG SHENGRI ELECTRIC POWER GROUP CO Ltd
Current assignee: SHANDONG SHENGRI ELECTRIC POWER GROUP CO Ltd
Priority date: 2012-05-29
Filing date: 2012-05-29
Publication date: 2012-12-05
Anticipated expiration: 2022-05-29

Abstract

The utility model discloses a light-emitting diode (LED) lamp bead, relates to the technical field of display and illumination, and in particular relates to an LED lamp bead with high-efficiency radiating performance. The LED lamp bead comprises a base (4), an LED luminous chip (2), a lens (1) and positive and negative electrodes (6), wherein a heat-conducting post (3) is arranged at a central position inside the base, the LED luminous chip is arranged at the upper end of the heat-conducting post, and the lower end of the heat-conducting post is connected with a base radiating fin (5) below the base; and the LED lamp bead is characterized in that the base radiating fin is provided with a circular block and two square blocks. The contact area between the base and the substrate is enlarged, so the LED lamp bead has the characteristics of high heat-conducting efficiency and good overall radiating effect.

Description

LED lamp pearl

Technical field

The utility model relates to and showing and lighting technical field, particularly belongs to a kind of LED lamp pearl with high efficiency and heat radiation performance.

Background technology

In daily life, advantage such as LED lamp pearl is low in energy consumption with it, brightness is high, the life-span is long and enjoy consumer's favor is widely used in many production fields such as lamp ornaments lighting, LED large screen display, traffic lights, household electrical appliances.For LED lamp pearl, be to cause the main factor that its life-span is on the hazard because heating has consumed its gross energy of 70% and high temperature, so radiating treatment is a vital problem.In traditional production process; Low power LED lamp pearl generally is not provided with heat abstractor; The high-power LED lamp pearl is then adopted the fin heat radiation, and its specific practice is that the lamp pearl is fixed on the aluminum substrate, and the heat that the LED luminescence chip produces reaches the base fin through heating column; Then reach substrate, distribute through the heat abstractor of installing on the substrate.But because the base fin of lamp pearl is very little, and the contact area between the substrate is limited, has influenced heat conduction efficiency between the two to a great extent, has fundamentally limited whole radiating effect, causes be affected the service life of LED lamp pearl.

The utility model content

The purpose of the utility model is to provide a kind of new LED lamp pearl, to reach the purpose of heat conduction efficiency height, good heat dissipation effect.

The LED lamp pearl that the utility model provided comprises base, LED luminescence chip, lens and positive and negative electrode, and base inside center position has heating column, the upper ends LED luminescence chip of heating column, and the lower end of heating column connects the base fin of base below; It is characterized in that the base fin has circular block and 2 square blocks.The size of circular block is corresponding with base, and 2 square blocks are separation between positive and negative electrode.

Use LED lamp pearl that the utility model provided and substrate assembling back, and the heat that is produced during the work of LED luminescence chip reaches substrate through heating column, base fin.Because the base fin is except that having circular block, other has 2 square blocks, has increased the contact area with substrate, so has had heat conduction efficiency height, integral heat sink good effectiveness.

Description of drawings

Accompanying drawing partly discloses the specific embodiment of the utility model, wherein,

Fig. 1, the utility model front view;

Fig. 2, the utility model left side view;

Fig. 3, the utility model upward view.

The specific embodiment

Like Fig. 1, shown in Figure 2, the LED lamp pearl that the utility model provided comprises base 4, LED luminescence chip 2, lens 1 and positive and negative electrode 6.Base is installed in above the base fin 5, and base inside center position has heating column 3, the upper ends LED luminescence chip 2 of heating column, and its lower end links to each other with the base fin, and the LED luminescence chip outside is covered with lens 1.

As shown in Figure 3, the utility model is characterised in that above-mentioned base fin 5 has circular block and 2 square blocks.From the consideration of arranging compact and maximum using substrate area; The size of circular block should be with base big or small corresponding; 2 square blocks then between positive and negative electrode, are separation, and promptly the line of centres of the line of centres of 2 square blocks and positive and negative electrode is orthogonal.

Claims

1. LED lamp pearl; Comprise base (4), LED luminescence chip (2), lens (1) and positive and negative electrode (6); Base inside center position has heating column (3), the upper ends LED luminescence chip of heating column, and the lower end of heating column connects the base fin (5) of base below; It is characterized in that the base fin has circular block and 2 square blocks.

2. LED lamp pearl according to claim 1, its characteristic is that also the size of the circular block of described base fin is corresponding with base, 2 square blocks are between positive and negative electrode.