CN201621652U - Heat dissipation LED lamp circuit board and fluorescent tube - Google Patents

Abstract

The utility model provides a LED lamp circuit board and fluorescent tube with heat dissipation function has seted up the louvre on the circuit board. The utility model provides a circuit board and fluorescent tube possesses good heat dissipation function, has improved the life of LED fluorescent tube to simple structure, low cost.

Description

A heat dissipation LED lamp circuit board and lamp tube

technical field

The utility model belongs to the field of LED lamps, in particular to a circuit board and a lamp tube of a heat dissipation LED lamp.

Background technique

LED is the abbreviation of English light emitting diode (light emitting diode). Its basic structure is a piece of electroluminescent semiconductor material, placed on a shelf with leads, and then sealed with epoxy resin around it to protect the inner core wire. effect. The core part of a light-emitting diode is a wafer composed of a p-type semiconductor and an n-type semiconductor, and there is a transition layer between the p-type semiconductor and the n-type semiconductor, which is called a p-n junction. In the PN junction of some semiconductor materials, when the injected minority carriers recombine with the majority carriers, the excess energy will be released in the form of light, thereby directly converting electrical energy into light energy. In the process of energy conversion, its circuit board and power supply will inevitably emit a certain amount of heat. Moreover, the LED lamp is in a completely closed environment, and the heat cannot be emitted. At present, many LED light brackets have double-sided boards and multi-layer boards with high density and high power, and it is difficult to dissipate heat. Conventional printed board substrates such as FR4 and CEM3 are poor conductors of heat, and the interlayer insulation prevents heat from being dissipated. This will lead to high temperature failure of electronic components.

Contents of the invention

The purpose of the utility model is to provide an LED lamp circuit board and a lamp tube with simple structure and good heat dissipation function.

The circuit board of the heat dissipation LED lamp provided by the utility model includes a circuit board and a wick installed on the circuit board, and a heat dissipation hole is opened on the circuit board. The heat dissipation holes are preferably opened on the circuit board near the two sides of the lamp head and the middle part of the lamp tube. The cooling holes are preferably circular. The number of cooling holes is preferably two or more. The utility model simultaneously provides an LED lamp tube with the above circuit board.

The heat dissipation plate and the lamp tube provided by the utility model have a good heat dissipation function, improve the service life of the LED lamp tube, and are simple in structure and low in cost.

Description of drawings

Fig. 1 is the schematic diagram of the right end of circuit board of the present utility model;

Fig. 2 is a schematic view of the left end of the circuit board of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail. However, the following description is only for a better understanding of the technical solution, and does not constitute any limitation on the protected content.

Referring to Fig. 1 and Fig. 2, it is a schematic diagram of the circuit board of the present invention. Wherein, a wick is installed on the circuit board 1, and several cooling holes 2 are respectively arranged on both sides of the circuit board. The cooling holes 2 are circular, and of course any other shape suitable for heat dissipation can also be adopted. The cooling holes can also be arranged in the middle of the circuit board.

In principle, the number of cooling holes should be more than two. Adjustable for cooling needs.

Arranging the circuit board in the LED lamp tube constitutes the LED lamp tube with heat dissipation function.

The circuit board and the lamp tube provided by the utility model have a good heat dissipation function because of the heat dissipation holes provided on the circuit board, improve the service life of the LED lamp tube, and are simple in structure and low in cost.

Claims (8)

1. heat radiating LED lamp wiring board comprises wiring board and in the circuit board wick is installed, is it is characterized in that offering in the circuit board louvre.

2. LED lamp driver plate according to claim 1 is characterized in that described louvre is arranged on fluorescent tube near on the wiring board of lamp head both sides.

3. LED lamp driver plate according to claim 1 is characterized in that described louvre is arranged on the wiring board of fluorescent tube middle part.

4. according to any described LED lamp driver plate in the claim 1 to 3, it is characterized in that described louvre is for circular.

5. according to any described LED lamp driver plate in the claim 1 to 3, the quantity that it is characterized in that described louvre is more than 2.

6. a cooling LED fluorescent tube is characterized in that wherein having any described LED lamp driver plate among the claim 1-3.

7. LED fluorescent tube according to claim 6, the quantity that it is characterized in that described louvre is more than 2.

8. LED fluorescent tube according to claim 6 is characterized in that described louvre is for circular.

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