CN201827819U

CN201827819U - Light emitting diode (LED) lamp

Info

Publication number: CN201827819U
Application number: CN2010205445297U
Authority: CN
Inventors: 朱正喜; 张春
Original assignee: SHENZHEN MARY PHOTOELECTRICITY CO Ltd
Current assignee: SHENZHEN MARY PHOTOELECTRICITY CO Ltd
Priority date: 2010-09-26
Filing date: 2010-09-26
Publication date: 2011-05-11
Anticipated expiration: 2020-09-26

Abstract

The utility model discloses a light emitting diode (LED) lamp, which comprises a printed circuit board (PCB), a power supply wire, at least one light emitting diode (LED) and a control module of the LED, wherein the LED comprises an LED chip and an encapsulating body, the surface of the LED chip is provided with at least one convex part or concave part formed through coarsening, and the inner full reflection phenomenon generated on the surface of LED crystal grains is damaged through the geometric shape on the surface of the LED chip, so the taking efficiency of the LED chip is improved, and the LED lamp has good luminous effect.

Description

A kind of LED lamp decoration

Technical field

The utility model relates to a kind of lighting device, in particular, and a kind of LED lamp decoration.

Background technology

The development that the LED industry obtains advancing by leaps and bounds in the whole world recently, particularly decorative lamp, like a raging fire especially, be widely used for municipal lighting engineerings such as building body profile, bridge, square, and public place of entertainment such as each hotel, KTV, hotel, recreation ground.By the control of electric current, LED can realize hundreds of kind even thousands of kinds of change in color.

In the prior art, the luminous efficiency of LED lamp decoration and glow color be except being subjected to outside the Pass external influence has, as: reflective, control mode of available light, background material etc.; In addition, mainly also relevant with light source itself, as, what directly influence the LED luminous efficiency is exactly the taking-up efficient of LED crystal grain.

Therefore, there is defective in prior art, needs to improve.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of illumination effect good, the LED lamp decoration that the taking-up efficient of led chip light is high.

The technical solution of the utility model is as follows: a kind of LED lamp decoration wherein, comprises pcb board, power line, at least one LED light emitting diode and control module thereof; Described LED light emitting diode comprises a led chip and a packaging body; The surface of described led chip has at least one protuberance or the recess that alligatoring forms.Described LED lamp decoration, wherein, the surface of described led chip has at least one protuberance and the recess that alligatoring forms.

Described LED lamp decoration, wherein, described protuberance or recess shapes are taper, circle, ellipse or custom-shaped.

Described LED lamp decoration, wherein, the surface of described packaging body forms at least one protuberance or at least one recess, described protuberance or recess be shaped as the above polygon in circle, ellipse or three limits.

Described LED lamp decoration, wherein, it also is provided with a base and at least one lampshade; Described base firmly is connected with described pcb board, is used to make the position relative fixed of described LED light emitting diode; Described lampshade is arranged on the outer surface of described LED light emitting diode, is used for described LED light emitting diode is risen. protective effect.

Described LED lamp decoration, wherein, it is irregular concavo-convex that the surface of described lampshade is.

Described LED lamp decoration wherein, also is provided with a heat dissipating layer, and described heat dissipating layer is arranged between described pcb board and the described base.

Described LED lamp decoration, wherein, described heat dissipating layer is a metal level, and described metal level and described pcb board are wholely set.

Described LED lamp decoration, wherein, it also comprises at least one heat abstractor, described heat abstractor be at least louvre, fin, heat sink and fan one of them.

Adopt such scheme, the utility model has at least one protuberance or the recess that alligatoring forms by the surface with led chip, utilize the geometry on LED heart surface to destroy the inner total reflection phenomenon that the LED grain surface takes place, thereby the taking-up efficient of led chip is provided, make LED lamp decoration illumination effect good.

Description of drawings

Fig. 1 is the schematic diagram of embodiment one of the present utility model;

Fig. 2 is a LED light-emitting diode structure schematic diagram in the utility model;

Fig. 3 is the circuit diagram of pcb board in the utility model;

Fig. 4 is the schematic diagram of embodiment two of the present utility model;

Fig. 5 is the schematic diagram of embodiment three of the present utility model;

Fig. 6 is the schematic diagram of embodiment four of the present utility model.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

Embodiment 1

As shown in Figure 1, present embodiment provides a kind of LED lamp decoration, this LED lamp decoration comprises the LED lamp decoration of a pcb board 101, power line 104 and at least one LED light emitting diode 103 and control module 102. present embodiments thereof, can be used for indoor illumination, decoration etc., also can be used to show animation, as the elementary cell in the LED lamp screen.

Wherein, described power line 104 comprises at least one positive source line and at least one power-polar curve, the positive and negative polar curve of described power supply can provide the voltage source for each LED light emitting diode 103, each LED light emitting diode 103 adopts series connection or mode in parallel to be provided with, and forms a loop with described power supply positive and negative electrode line.

As shown in Figure 2, described LED light emitting diode 103 comprises a led chip 203 and a packaging body 201.For the luminous efficiency extraction efficiency that makes described led chip 203 reaches the highest, can adopt the surface coarsening technology, at least one protuberance or recess 204 that the surface coarsening of described led chip 203 is formed; Perhaps, the led chip that includes at least one protuberance and at least one recess that the surface coarsening of described led chip 203 is formed.

For example, can adopt modes such as conventional semiconductors light shield and engraving method or Wet-type etching to come described led chip 203 is carried out surface coarsening.

To adopt the surface coarsening technology that alligatoring is carried out on the surface of led chip, not only can carry out alligatoring, can also the substrate of crystal grain epitaxial layer be advanced the side of the crystal grain epitaxial layer of led chip 203. the row alligatoring makes led chip 203 have better luminous taking-up efficient.

In each led chip 203, being shaped as of described protuberance or recess 204 can be taper, circle, ellipse or custom-shaped; Described custom-shaped can be the combination of various regular shapes, for example is circular and the above polygon of the combined shaped of taper, three limits and the combination of circle etc.

In addition; because encapsulating structure 201 not only plays a protective role to led chip; for example; play protective effects such as protection against electric shock, waterproof and dustproof; the light that the material of encapsulating structure 201 itself also can led chip sends plays passive influence, for example; light in reflecting extraneous process by total reflection, thereby the light emission rate of LED light emitting diode is reduced.

In order to improve the light extraction efficiency of LED light emitting diode 103, can also form at least one protuberance or recess 202 on the surface of the surperficial described encapsulating structure of described encapsulating structure 201, so the shape of protuberance or recess 202 can be polygons circular, oval or more than three limits, by changing the surface configuration of encapsulating structure, light is directly reflected outside encapsulating structure, and, also can reduce the order of reflection of light in encapsulating structure, reduce absorbed possibility, thereby improve the light emission rate of LED light emitting diode light.

As shown in Figure 3, on pcb board 101,, at least one holding wire 302 is set also except a positive source line 301, a power-polar curve 303 are set.Positive source line 301 and power-polar curve 303 can provide voltage for each LED unit of present embodiment, and LED light emitting diode 103 is used for the light source of LED lamp decoration as light source.

Described LED light emitting diode 103 can be red LED light emitting diode or blue led light emitting diode or green LED light emitting diode.Described LED light emitting diode can adopt pinned encapsulation, surface-mount type encapsulation or other forms of encapsulation, as, other form encapsulation can encapsulate for Piranha.

Control module 304 is used for driving each LED light emitting diode of control, and according to the LED control signal of each holding wire 302 transmission, drive the LED light emitting diode of control varying number, make each LED light emitting diode can realize that different brightness change, and make to mutually combine between each LED light emitting diode and be the variation of different colours, be used for illumination or display text, image, animation etc.For example, control a red LED light emitting diode, a blue led light emitting diode and a green LED light emitting diode respectively by control module 304, using light is white light.

Embodiment 2

As shown in Figure 4, similar to embodiment 1, present embodiment provides a kind of LED lamp decoration, and the present embodiment difference from Example 1 is that present embodiment LED lamp decoration also is provided with a base 402 and at least one lampshade 401.

Described base 402 firmly is connected with described pcb board 101, because each LED light emitting diode 103 is fixed on the pcb board, described pcb board 101 can be fixedlyed connected with described base 402 by setting fixture, and described fixture can be screw, rivet, latch, clamp, mutual adaptive internal and external threads, the buckle of tackling mutually and draw-in groove or the like; As long as can reach described pcb board 101 secure on described base 402, because each LED light emitting diode 103 is to be fixed on the described pcb board 101.

Described lampshade 401 is arranged on the outer surface of each LED light emitting diode, can shield to each LED light emitting diode 103, for example, protective effects such as protection against electric shock, waterproof and dustproof.

And, the surface of lampshade 401 can be irregular concavo-convex, as, inner surface or outer surface that can lampshade 401 be set to irregular concavo-convex, light by lampshade 401 surfaces is penetrated to different directions respectively, make the LED lamp decoration seem to have the frost flower effect, decorative effect is better.

Described lampshade 401 can be set to closed; be 401 integral body of described lampshade as a sealing; or described lampshade 401 installs and fixes on the described base 402; and constituting the integral body of a sealing with described base 402, described lampshade 401 can play the protective effect of waterproof and dustproof, protection against electric shock etc. to each components and parts in the present embodiment LED lamp decoration.

And, described lampshade 401 also can be open type, be that at least one open ports is set on the lampshade 401, each open ports can be used to make the light-emitting area of each LED light emitting diode to stretch out lampshade outside, described unit, and the light that each light emitting diode is sent is not subjected to the influence of described lampshade material 401 equally fully.

In addition, the lampshade 401 of open type can also adopt the mode of suspension, be fixed on the base 402, and the lampshade 401 of open type can also play the effect of converging light, and for example the inner surface at lamp socket 401 covers a reflector layer, the light reflection of lampshade inner surface will be radiated at, and concentrate from described open ports and penetrate, so that lighting demand to be provided, or other specific (special) requirements.

Embodiment 3

As shown in Figure 5, on the basis of embodiment 1 or embodiment 2, in the present embodiment LED lamp decoration, a heat dissipating layer 501 is set also, described heat dissipating layer 501 is arranged between described pcb board and the described base.

Heat dissipating layer 501 can be metal substrate, for example, and aluminium, copper etc., metal substrate can independently be provided with, because metal has extraordinary heat conduction function, therefore, the heat in the LED lamp decoration can in time import heat dissipating layer 501 by pcb board, and derives extraneous by heat dissipating layer 501.

Embodiment 4

As shown in Figure 6, in embodiment 3, present embodiment LED lamp decoration also comprises at least one heat abstractor 601, described heat abstractor 601 be at least louvre, fin, heat sink and fan one of them, be that louvre or heat abstractor 601 is louvre and fin as heat abstractor 601.

Heat abstractor 601 is provided with and can be arranged on the base 402, for example, at least one louvre 601 is set on base 402, louvre can be set to a through hole of base 402, heat in the present embodiment LED lamp decoration imports heat dissipating layer by pcb board, derives extraneous again by louvre.

And for example, heat abstractor also can be set to fin, and fin also can be one-body molded with base 402, can play same radiating effect.

Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.

Claims

1. a LED lamp decoration is characterized in that, comprises pcb board, power line, at least one LED light emitting diode and control module thereof;

Described LED light emitting diode comprises a led chip and a packaging body;

The surface of described led chip has at least one protuberance or the recess that alligatoring forms.

2. LED lamp decoration according to claim 1 is characterized in that, the surface of described led chip has at least one protuberance and the recess that alligatoring forms.

3. LED lamp decoration according to claim 1 is characterized in that, described protuberance or recess shapes are taper, circle or oval.

4. LED lamp decoration according to claim 1 is characterized in that, the surface of described packaging body forms at least one protuberance or at least one recess, described protuberance or recess be shaped as the above polygon in circle, ellipse or three limits.

5. LED lamp decoration according to claim 1 is characterized in that, it also is provided with a base and at least one lampshade; Described base is fixedlyed connected with described pcb board, is used to make the position relative fixed of described LED light emitting diode; Described lampshade is arranged on the outer surface of described LED light emitting diode, is used for described LED light emitting diode is shielded.

6. LED lamp decoration according to claim 5 is characterized in that, it is irregular concavo-convex that the surface of described lampshade is.

7. LED lamp decoration according to claim 1 is characterized in that, a heat dissipating layer also is set, and described heat dissipating layer is arranged between described pcb board and the described base.

8. LED lamp decoration according to claim 7 is characterized in that, described heat dissipating layer is a metal level, and described metal level and described pcb board are wholely set.

9. LED lamp decoration according to claim 1 is characterized in that it also comprises at least one heat abstractor, described heat abstractor be at least louvre, fin, heat sink and fan one of them.