CN201078687Y - LED lighting device - Google Patents

Abstract

An LED lighting device, comprising: the LED fluorescent lamp comprises a circuit board, a cover body, a voltage conversion unit and two guide connecting pieces, wherein one side surface of the circuit board is provided with a plurality of LED irradiation surfaces for arrangement, the other side surface of the circuit board is a heat dissipation surface formed by the heat dissipation unit, the voltage conversion unit is arranged on the heat dissipation surface of the circuit board and is electrically connected with the circuit board, the cover body is arranged on the outer cover of the irradiation surface, the two ends of the circuit board are respectively provided with the guide connecting pieces corresponding to a common fluorescent lamp holder, an LED lamp tube is formed by penetrating through the components, the existing fluorescent lamp tube can be directly replaced, the LED fluorescent lamp tube is applied to the existing fluorescent lamp holder, cost saving and simple and convenient replacement are achieved, and the lamp tube which is energy-saving, long.

Description

LED lighting

technical field

The utility model relates to an LED lighting device, in particular to an LED lighting device suitable for the existing fluorescent lamp holder.

Background technique

Most of the general indoor lighting equipment uses fluorescent tubes, light bulbs, etc. as the main light-emitting components. Rising temperature will increase the environmental load, especially in the era of environmental protection, which requires more energy use. How to use energy more efficiently without causing environmental pollution is a major issue today.

Most of the existing fluorescent tube structures use one or more fluorescent tubes installed on a lamp holder to achieve the purpose of lighting by converting electrical energy into light energy. However, the existing fluorescent tube structure has poor energy efficiency, and most of the The energy is almost converted into heat and dissipated into the atmosphere, and the energy actually used for lighting is relatively small, resulting in poor luminous efficiency and short service life of fluorescent tubes. Therefore, the existing fluorescent lamp structure has the above-mentioned defects.

Contents of the invention

The main purpose of the utility model is to provide an LED lighting device, which has the effects of energy saving, long service life and good luminous efficiency.

The second object of the present utility model is to provide a device that can be electrically connected to the existing fluorescent lamp holder, and its installation method is the same, which is helpful for simple construction and convenient replacement.

In order to achieve the above purpose, the utility model is an LED lighting device, which includes:

A circuit board with a heat dissipation unit, one side of the circuit board is an irradiation surface arranged with a plurality of light emitting diodes, and the other side is a heat dissipation surface formed by a heat dissipation unit, and a voltage conversion unit is arranged on the above circuit board;

A lower cover, the lower cover is arranged on the outside of the irradiation surface formed by the above-mentioned plurality of light-emitting diodes, so that it is covered and fixed on the outside of the circuit board;

Two conductors, the conductors are electrically connected to the voltage conversion unit, and the two conductors are sleeved on both ends of the lower cover, so that each of the above components constitutes a lighting device.

In a preferred embodiment, the above-mentioned heat dissipation unit is a plurality of heat dissipation fins, and the heat dissipation fins are aluminum extruded heat dissipation modules.

In a feasible embodiment, an upper cover with a plurality of windows can be provided outside the heat dissipation surface.

In a preferred embodiment, a thin film is provided on the inner surface of the cover outside the above-mentioned irradiation surface, and the thin film can be a polarizing film, a diffusion film or a brightness enhancement film.

In an ideal embodiment, during the manufacturing process of the above-mentioned circuit board, the above-mentioned voltage conversion unit is directly arranged on the circuit board, so that the voltage conversion unit and the circuit board are integrally formed.

In an ideal embodiment, the above-mentioned voltage conversion unit can be arranged in a lamp socket for the LED lighting device.

The utility model has the advantages: the lighting device of the utility model can be applied to the existing fluorescent lamp holder, and the LED lighting device can directly replace the fluorescent tube, and a light-emitting component with energy saving, long service life and good luminous efficiency can be provided. And it can be directly replaced without changing the lamp holder, which helps to save costs and achieve better lighting effects.

Description of drawings

Fig. 1 is the appearance perspective view of the utility model;

Fig. 2 is another perspective view of the appearance of the utility model;

Fig. 3 is a combined exploded view of the utility model;

Fig. 4 is a side view sectional view of the utility model;

Fig. 5 is a schematic diagram of the utility model assembled on the lamp holder;

Fig. 6 is a side sectional view of Fig. 5;

Fig. 7 is a side sectional view of the voltage conversion unit disposed on the lamp holder;

Fig. 8 is an appearance perspective view of another embodiment of the utility model;

Fig. 9 is a combined exploded view of Fig. 8;

Fig. 10 is a perspective view of the appearance of another embodiment of the utility model;

Fig. 11 is the combined exploded view of Fig. 10;

Fig. 12 is an exploded view of another embodiment of the utility model.

Explanation of reference signs: 10 circuit board; 101 clamping groove; 11 light-emitting diode; 12 heat dissipation unit; 13 lead piece; 131 insulating sheet body; ; 16 lower cover body 161 buckle part 17 film; 18 lower cover body 181 inner surface 19 cooling unit; 20 fluorescent lamp holder; 21 socket.

Detailed ways

In order to further have a deeper, clear and detailed understanding and understanding of the structure, use and features of the present utility model, a preferred embodiment is now given, and the detailed description of the accompanying drawings is as follows:

First please refer to Fig. 1 to Fig. 4, the utility model is a kind of LED illuminating device, from the embodiment of the figure, it includes: a circuit board 10, an upper cover body 15, a lower cover body 16 and two conductors piece 13.

In a feasible embodiment, one side of the circuit board 10 has a heat dissipation surface formed by an integrally formed heat dissipation unit 12, and the other side is arranged with a plurality of light emitting diodes 11 to form an irradiation surface, and a voltage conversion unit 14 is arranged on the heat dissipation surface. , the voltage conversion unit 14 is electrically connected to the circuit board 10 .

Wherein, during the manufacturing process of the above-mentioned circuit board 10 , the above-mentioned voltage conversion unit 14 can be directly disposed on the circuit board 10 , and formed integrally with the circuit board 10 .

Furthermore, an upper cover body 15 is set on the heat dissipation surface of the above-mentioned circuit board 10, and the upper cover body 15 is provided with a plurality of hollow windows 151, so that heat can be dissipated into the air from the above-mentioned window holes 151. 10 A cover 16 is arranged below the irradiated surface.

Two conductive elements 13 are fixed on two ends of the above-mentioned circuit board 10 , and the conductive elements 13 are a cover with two electrical pins, and the electrical pins are electrically connected to the voltage conversion unit 14 .

In a feasible embodiment, the inner surface of the lower cover 16 is further coated with a thin film 17. The thin film 17 can be a polarizing film, thereby absorbing the light beam components parallel to its arrangement direction, and only allowing the vertical light components to pass through, which helps In order to filter out light in non-specific directions; and the film 17 can be a diffusion film, and the light emitted by the light-emitting diode 11 is used for scattering treatment by the film 17, and many phenomena of refraction, reflection and scattering will occur in the light, thus causing The effect of optical diffusion is achieved, so that the LED lighting device can emit uniform light; moreover, the thin film 17 can be a brightness enhancement film, thereby improving the brightness of the light emitted by the light emitting diode 11 .

Please refer to Fig. 5 and Fig. 6, in a preferred embodiment, when the utility model is used, the lighting device is directly installed on the fluorescent lamp holder 20, so that the guides 13 on both sides are inserted into the sockets on both sides of the fluorescent lamp holder 20 21, when the power is turned on, the above-mentioned socket 21 transmits the power to the connecting piece 13, and the connecting piece 13 then inputs the power into the voltage conversion unit 14, and the alternating current is converted into a direct current through the voltage conversion unit 14, and then the direct current is transmitted to the circuit On the board 10 , drive each light emitting diode 11 on the circuit board 10 to make it operate to emit a light source, and emit light through the lower cover body 16 .

When the LED lighting device is in operation, the heat generated by the light emitting diodes 11 is transmitted to the heat dissipation surface at the rear end through the circuit board 10, so that the heat generated by the light emitting diodes 11 can be effectively dissipated into the air, and the heat can be dissipated through the three-dimensional heat dissipation of the heat dissipation unit 12, The overall heat dissipation efficiency can be greatly improved, the heat can be dissipated into the air more quickly, and the heat generated by the LED 11 can be effectively removed, so that the LED 11 can be maintained at a normal operating temperature, and the service life of the lighting device can be extended. The purpose of rapid heat dissipation can be achieved.

As shown in Figure 7, in a preferred embodiment, due to cost considerations, the voltage conversion unit 14 provided on the lighting device is relocated to the fluorescent lamp holder 20, which can convert alternating current into direct current and input it to the lighting device, so that The LED 11 is driven to achieve the effect of lighting.

Please refer to FIG. 8 and FIG. 9 , in an ideal embodiment, the guide piece 132 is an electrical pin, and the lead piece 132 is welded at both ends of the circuit board 10, and one end of the above-mentioned guide piece 132 is a flat end. , welded on the circuit board 10, the other end is a round head end compatible with the above-mentioned fluorescent lamp holder 20 socket 21, and then the upper and lower cover bodies 15, 16 are covered outside the circuit board 10, and the upper and lower cover bodies are processed. 15 and 16 are closed to form an LED lighting device.

Wherein, the upper and lower cover bodies 15, 16 are made of insulating materials.

As shown in Figures 10 and 11, it is another ideal embodiment of the present invention, which is to set a fastening groove 101 on the heat dissipation surface of the circuit board 10, and correspondingly extend the buckle parts 161 on both sides of the lower cover body 16. , directly extend the lower cover body 16 slightly from both sides of the circuit board 10, position the buckle part 161 on the fastening groove 101, and close the lead piece 13 with two insulating sheets 131, so as to form an LED lighting device .

Please refer to Fig. 12, in the illustrated embodiment, the inner surface 181 of the lower cover body 18 can be laser processed to produce an optical design surface, so that the light emitted by the lighting device can be more concentrated; the circuit board 10 and the heat dissipation unit 19 In combination, the above-mentioned heat dissipation unit 19 is pre-extruded before the combination, and then pressed together with the circuit board 10 to form a circuit substrate with a heat dissipation layer, so as to increase the heat dissipation area of the circuit board 10, so that the light-emitting diodes 11 on the circuit board 10 produce The heat can be quickly transferred to the heat dissipation unit 19, and a better heat dissipation space can be generated to increase its heat dissipation effect and further improve its heat dissipation performance.

The lighting device of the present utility model can be applied to the existing fluorescent lamp holder 20, and the LED lighting device can directly replace the fluorescent tube to provide a light-emitting component that saves energy, has a long service life and good luminous efficiency, and does not need to change the lamp holder , which can be directly replaced, which helps to save costs and achieve better lighting effects.

The above is only a preferred embodiment of the utility model, and should not limit the scope of implementation of the utility model, that is, all simple equivalent changes and modifications made according to the claims of the utility model and the content of the new description, All should still be included in the patent scope of the utility model application.

Claims (10)

1. An LED lighting device, characterized in that it comprises: A circuit board with a heat dissipation unit, one side of the circuit board is an irradiation surface arranged with a plurality of light emitting diodes, and the other side is a heat dissipation surface formed by a heat dissipation unit, and a voltage conversion unit is arranged on the above circuit board; A lower cover, the lower cover is arranged on the outside of the irradiation surface formed by the above-mentioned plurality of light-emitting diodes, so that it is covered and fixed on the outside of the circuit board; Two conductors, the conductors are electrically connected to the voltage conversion unit, and the two conductors are sleeved on both ends of the lower cover, so that each of the above components constitutes a lighting device. 2. The LED lighting device according to claim 1, wherein the heat dissipation unit is a plurality of heat dissipation fins. 3 . The LED lighting device according to claim 1 , wherein an upper cover body with a plurality of windows is provided outside the heat dissipation surface, and is connected to the lower cover body. 4 . 4. The LED lighting device according to claim 1, characterized in that a thin film is provided on the inner surface of the lower cover outside the irradiated surface. 5. The LED lighting device according to claim 4, wherein the film is a polarizing film. 6. The LED lighting device according to claim 4, wherein the thin film is a diffusion film. 7. The LED lighting device according to claim 4, wherein the film is a brightness enhancing film. 8 . The LED lighting device according to claim 1 , wherein the connecting member is a cover body and has two electrical pins. 9. The LED lighting device according to claim 1, wherein the voltage converting unit is integrally formed with the circuit board. 10 . The LED lighting device according to claim 3 , wherein the heat dissipation surface of the circuit board is provided with fastening grooves, and the corresponding two side edges of the lower cover are extended with fastening parts. 11 .

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