CN201078687Y

CN201078687Y - LED illumination device

Info

Publication number: CN201078687Y
Application number: CNU2007201755930U
Authority: CN
Inventors: 黄羽立
Original assignee: Insight Electronic Group Inc
Current assignee: Insight Electronic Group Inc
Priority date: 2007-09-03
Filing date: 2007-09-03
Publication date: 2008-06-25
Anticipated expiration: 2017-09-03

Abstract

A LED lighting device is provided, which comprises a circuit board, a cover body, a voltage converting unit and two conduction connecting workpieces. One side surface of the circuit board is arrayed with the irradiation surfaces of a plurality of LEDs; the other side surface is a radiating surface composed of radiating units; the voltage converting unit is arranged on the radiating surface of the circuit board. The voltage converting unit is electrically connected with the circuit board; the outer part of the radiating surface is covered with a cover and the two ends of the circuit board are arranged with the conduction connecting workpieces.

Description

The LED lighting device

Technical field

The utility model relates to a kind of LED lighting device, particularly a kind of LED lighting device that is applicable to existing daylight lamp holder.

Background technology

General room lighting equipment adopts fluorescent tube, bulb etc. as main luminescence component mostly, existing luminescence component illumination efficiency is poor, power consumption increases, service life is short, and the energy major part that it consumed all becomes heat energy and distributes, making environment temperature rise, increase carrying capacity of environment, is the epoch of stressing environmental protection especially now, use for the energy is more requirement, more efficient with energy utilization how, and can manufacturing environment not pollute, be a big problem now.

Existing fluorescent tube structure, mostly with one or most fluorescent tubes be installed on the lamp socket, convert luminous energy to through electric energy and reach luminous purpose, but existing fluorescent tube structure, energy use efficiency is poor, most energy almost converts heat energy to and dissipates in the atmosphere, it is less relatively really to be used for luminous employed energy, cause luminous efficiency poor, and fluorescent tube is shorter service life, so existing fluorescent structure has above-mentioned disappearance.

Summary of the invention

Main purpose of the present utility model aims to provide a kind of LED lighting device, has the energy, long service life and the good effect of luminous efficiency of saving.

A time purpose of the present utility model aims to provide a kind ofly, can be electrically connected with existing daylight lamp holder, and its mounting means is identical, helps simple and easy construction and is convenient for changing.

In order to achieve the above object, the utility model is a kind of LED lighting device, is to include:

One has the circuit board of heat-sink unit, and described circuit board one side is for arranging the shadow surface that is provided with most light emitting diodes, and the another side is the radiating surface that is made of heat-sink unit, and a voltage conversion unit is arranged on the foregoing circuit plate;

One lower cover, described lower cover are arranged at the outside of the shadow surface of above-mentioned most light emitting diode formations, and it is coated and fixed on outside the circuit board;

Two lead pieces, described lead piece and above-mentioned voltage conversion unit conduct, and above-mentioned two lead pieces are sheathed on above-mentioned lower cover two ends, make above-mentioned each assembly constitute a lighting device.

In a preferred embodiment, above-mentioned heat-sink unit is most radiating fins that are provided with, and described radiating fin is the aluminium extruded type radiating module.

In a possible embodiments, can be covered with a upper outlet body with most fenestras in the radiating surface outside.

In a preferred embodiment, the cover body inner surface in above-mentioned shadow surface outside is provided with film, and described film can be light polarizing film, diffusion barrier or brightness enhancement film.

In a desirable embodiment, the foregoing circuit plate directly is arranged at above-mentioned voltage conversion unit on the circuit board in manufacture process, and making voltage conversion unit and described circuit board molding is one.

In a desirable embodiment, above-mentioned voltage conversion unit can be located in the lamp socket of installing for the LED lighting device.

The advantage that the utlity model has: by lighting device of the present utility model, can be applicable to existing daylight lamp holder, directly the LED lighting device is replaced fluorescent tube, can provide one to save the energy, long service life and the good luminescence component of luminous efficiency, and need not change lamp socket, can directly change, help to save cost, and can reach the better purpose of illuminating effect.

Description of drawings

Fig. 1 is stereoscopic figure of the present utility model;

Fig. 2 is another stereoscopic of the utility model figure;

Fig. 3 is a combination decomposition figure of the present utility model;

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

Fig. 5 is that the utility model is assembled in the schematic diagram on the lamp socket;

Fig. 6 is the side view cutaway drawing of Fig. 5;

Fig. 7 is the side view cutaway drawing that voltage conversion unit is arranged at lamp socket;

Fig. 8 is the stereoscopic figure of another embodiment of the utility model;

Fig. 9 is the combination decomposition figure of Fig. 8;

Figure 10 is the stereoscopic figure of the another embodiment of the utility model;

Figure 11 is the combination decomposition figure of Figure 10;

Figure 12 is the utility model combination decomposition figure of an embodiment again.

Description of reference numerals: 10 circuit boards; 101 fixing slots; 11 light emitting diodes; 12 heat-sink units; 13 lead pieces; 131 insulation lamellar bodies; 132 lead pieces; 14 voltage conversion units; 15 upper outlet bodies; 151 fenestras; 16 lower covers, 161 clamping parts, 17 films; 18 lower covers, 181 inner surfaces, 19 heat-sink units; 20 daylight lamp holders; 21 sockets.

The specific embodiment

For further to structure of the present utility model, use and feature thereof darker one deck being arranged, preferred embodiment is now enumerated in clear and definite, full and accurate understanding and understanding, cooperates graphic being described in detail as follows:

At first see also Fig. 1 to shown in Figure 4, the utility model is a kind of LED lighting device, in icon embodiment, is to include: a circuit board 10, a upper outlet body 15, a lower cover 16 and two lead pieces 13.

In possible embodiments, foregoing circuit plate 10 one sides have the radiating surface that one-body molded heat-sink unit 12 constitutes, the another side is arranged a plurality of light emitting diodes 11 formation one shadow surfaces is set, one voltage conversion unit 14 is set on above-mentioned radiating surface, and described voltage conversion unit 14 is electrically connected with circuit board 10.

Wherein, foregoing circuit plate 10 can directly be arranged at above-mentioned voltage conversion unit 14 on the circuit board 10 in manufacture process, is shaped to one and moulding with described circuit board 10.

Moreover, on foregoing circuit plate 10 radiating surfaces, being covered with a upper outlet body 15, described upper outlet body 15 is provided with a plurality of hollow out fenestras 151, and heat can be dissipated to the air from above-mentioned fenestra 151, and foregoing circuit plate 10 shadow surfaces below is provided with a lower cover 16.

Two lead pieces 13 are fixed in foregoing circuit plate 10 two ends, and described lead piece 13 is that a lid has two electric pins, and described electric pin and above-mentioned voltage conversion unit 14 conduct.

In possible embodiments, the further coated thin film 17 of above-mentioned lower cover 16 inner surfaces, described film 17 can be light polarizing film, absorbs the beam component that is parallel to its orientation by this, only allows vertical light component pass through, and helps the light of unspecified directions is filtered; Described again film 17 can be diffusion barrier, the light that utilizes film 17 that light emitting diode 11 is sent is done scattering and is handled, the phenomenon of many refractions, reflection and scattering will take place in light, has so just caused the effect of optics diffusion, makes the LED lighting device can give out uniform light; Described again film 17 can be brightness enhancement film, improves light emitting diode 11 irradiant brightness by this.

Please join Fig. 5 and shown in Figure 6, in preferred embodiment, when the utility model uses, be that lighting device directly is installed on the daylight lamp holder 20, both sides lead piece 13 is inserted on the daylight lamp holder 20 both sides sockets 21, behind electric power starting, above-mentioned socket 21 is sent to lead piece 13 with power supply, lead piece 13 is again with power input voltage converting unit 14, change alternating current into direct current via voltage conversion unit 14, again direct current is reached on the circuit board 10 each light emitting diode 11 on the drive circuit board 10, make its running send light source, distribute light by lower cover 16.

When the LED lighting device operates, the heat that light emitting diode 11 is produced is sent to the radiating surface of rear end via circuit board 10, can effectively dissipate to the heat that light emitting diode 11 is produced in the air, heat can be by the solid heat radiation of heat-sink unit 12, integral heat sink efficient is promoted greatly, heat can be dissipated in the air faster, and effectively get rid of the heat that light emitting diode 11 is produced, make light emitting diode 11 maintain normal working temperature, and can prolong service life of lighting device, can reach the purpose of quick heat radiating relatively.

As shown in Figure 7, in a preferred embodiment,, change and be located on the daylight lamp holder 20 being located at voltage conversion unit 14 on the lighting device in response to the consideration of cost, can convert alternating current to direct current and input to lighting device, make light emitting diode 11 drive the effect that reaches illumination.

Please join Fig. 8 and shown in Figure 9, in a desirable embodiment, described lead piece 132 is an electric pin, be that above-mentioned lead piece 132 1 ends are butt end, are welded on the circuit board 10 in circuit board 10 two ends welding lead piece 132, the other end is the blunt end with above-mentioned daylight lamp holder 20 sockets 21 compatibilities, above again,

lower cover

15,16 cover caps with upper and

lower cover body

15,16 closures, form a LED lighting device with processing mode outside circuit board 10.

Wherein, upper and lower cover body the 15, the 16th is made with insulating materials.

Shown in Figure 10,11, be another desirable embodiment of the present utility model, be on circuit board 10 radiating surfaces, fixing slot 101 to be set, its corresponding lower cover 16 both sides ora terminalis Extender Card button portions 161, directly lower cover 16 is upheld a little by circuit board 10 both sides, clamping part 161 is positioned on the fixing slot 101, and with two the insulation lamellar bodies 131 with lead piece 13 place's closures, formed a LED lighting device.

Please join Figure 12, in illustrated embodiment, lower cover 18 inner surfaces 181 can produce the optical design drawing by laser processing mode, and the light that lighting device is penetrated can be more concentrated; Described circuit board 10 combines with heat-sink unit 19, above-mentioned heat-sink unit 19 is in conjunction with the preceding type that squeezes in advance, be laminated with circuit board 10 again and form circuit substrate with heat dissipating layer, to increase the area of dissipation of circuit board 10, the heat that light emitting diode 11 on the circuit board 10 is produced can be transmitted to heat-sink unit 19 fast, and can produce better heat-dissipating space to increase its radiating effect, further promote the usefulness of its heat radiation.

By lighting device of the present utility model, can be applicable to existing daylight lamp holder 20, directly the LED lighting device is replaced fluorescent tube, can provide one to save the energy, long service life and the good luminescence component of luminous efficiency, and need not change lamp socket, can directly change, help to save cost, and can reach the better purpose of illuminating effect.

The above, it only is preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this, promptly the simple equivalent of doing according to the utility model claim and novel description generally changes and modifies, and all must include in the utility model claim.

Claims

1. a LED lighting device is characterized in that, is to include:

2. LED lighting device as claimed in claim 1 is characterized in that, above-mentioned heat-sink unit is most radiating fins that are provided with.

3. LED lighting device as claimed in claim 1 is characterized in that, is covered with a upper outlet body with most fenestras in the radiating surface outside, and is connected with lower cover.

4. LED lighting device as claimed in claim 1 is characterized in that, the lower cover inner surface in above-mentioned shadow surface outside is provided with film.

5. LED lighting device as claimed in claim 4 is characterized in that, described film is a light polarizing film.

6. LED lighting device as claimed in claim 4 is characterized in that, described film is a diffusion barrier.

7. LED lighting device as claimed in claim 4 is characterized in that, described film is a brightness enhancement film.

8. LED lighting device as claimed in claim 1 is characterized in that, described lead piece is a lid and has two electric pins.

9. LED lighting device as claimed in claim 1 is characterized in that, described voltage conversion unit and described circuit board are formed in one.

10. LED lighting device as claimed in claim 3 is characterized in that, described circuit board radiating surface is provided with fixing slot, and its corresponding lower cover both sides ora terminalis is extended with clamping part.