LED lamp tube

Abstract

The invention relates to an LED lamp tube which comprises a lamp shell and an LED substrate arranged in the lamp shell and used for carrying LED lamp beads. The LED substrate comprises a body with two ends and two radiating parts formed through outward extension from the two ends of the body respectively, the body and the radiating parts are formed integrally, the LED lamp leads packaged in an integrated mode are fixedly arranged on the body, the LED lamp leads are arranged facing to the center of the lamp shell, the radiating parts extend upwards from the side portion of the body along the inner wall of the lamp shell, and the outer side walls of the radiating parts are attached to the inner wall of the lamp shell. The LED lamp tube is good in radiating capacity, convenient to assemble, easy to design and suitable for full-automatic assembly lines.

Description

technical field [0001] The invention relates to an LED lamp tube. Background technique [0002] Light Emitting Diode (LED) is a solid-state semiconductor device that can directly convert electricity into light. [0003] 1. Refer to the attached figure 1 As shown in the lamp tube, the lamp housing includes an aluminum lamp holder and a PC lampshade. The cross section of the aluminum lamp holder is roughly a closed semicircle, and the LED substrate is attached to the plane of the aluminum lamp holder. This structure The disadvantages are: (1), the sealing of the connection between the lamp holder and the lampshade is not good, and it is not waterproof; (2), the aluminum lamp holder is a conductive metal, which is easy to get an electric shock, so the power supply design of the lamp tube must consider how to prevent electric shock, It is more complicated; (3), the weight of aluminum is relatively large, and the overall weight of the lamp tube is relatively heavy; (4), the lig...

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Problems solved by technology

[0003]1. Refer to the attached As shown in Figure 1, the lamp housing includes an aluminum lamp holder and a PC lampshade. The cross section of the aluminum lamp holder is roughly a closed semicircle. On the plane of the lamp holder, the disadvantages of this structure are: (1), the sealing of the connection between the lamp holder and the lampshade is not good, and it is not waterproof; (2), the aluminum lamp holder is conductive metal, which is easy to get an electric shock, so the lamp tube The design of the power supply must consider how to prevent electric shock, which is more complicated; (3), the weight of the aluminum is relatively large, and the lamp tube as a whole is heavy; (4), the light source is located in the center of the lamp tube, and the power of a single LED used must be small. Otherwise, the light emitted by the lamp is uneven, so when designing a lamp with a certain wattage, more LEDs are required;

[0004]2. Refer to the attached As shown in Figure 2, the lamp housing is a PC all-plastic lamp housing, which includes a lampshade made of light-transmitting PC and a lamp holder made of opaque PC. There are buckles, and the two ends of the LED substrate are set on the lamp tube through the buckles. Although this structure solves the problem of moisture-proof insulation of the first type of lamp tube, it still has the following disadvantages: (1). The shell material is PC, which has poor heat dissipation performance, resulting in heat accumulation and light decay of the LED; (2) The light source is located in the center of the lamp tube, and the power of a single LED used must be small, otherwise the light emitted by the lamp tube will not be good. Uniform, so when designing a lamp with a certain wattage, more LEDs are required;

[0005]3. Refer to the attached As shown in Figure 3, the lamp housing is a PC all-plastic lamp housing, which includes a lampshade made of light-transmitting PC and a lamp holder made of opaque PC. There are two opposite protrusions, and the two ends of an aluminum profile part are snapped onto the protrusions to be inserted into the lamp tube. The LED light bar is attached to the aluminum profile part, and an aluminum profile is set between the lamp housing and the LED substrate. Although this structure has a certain heat dissipation capacity, it still has the following disadvantages: the heat dissipation capacity is still poor, and the installation of the light bar is inconvenient

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