CN101625082B

CN101625082B - LED lighting device

Info

Publication number: CN101625082B
Application number: CN2009101157979A
Authority: CN
Inventors: 孙业; 王凤
Original assignee: Suzhou BOE Chatani Electronics Co Ltd
Current assignee: Suzhou hi tech Photoelectric Technology Co., Ltd.
Priority date: 2009-07-27
Filing date: 2009-07-27
Publication date: 2011-05-18
Anticipated expiration: 2029-07-27
Also published as: CN101625082A

Abstract

The invention discloses an LED lighting device, comprising a plurality of circuit boards connected with each other in an end-to-end way, a metal lining board, a diffusion board and a driver. The lower surfaces of the circuit boards are respectively provided with a plurality of LEDs, each circuit board is provided with at least one connector electrically connected with the LEDs, and the connectors are electrically connected with each other through a connection device; the metal lining board is arranged above upper part of the circuit boards which are detachably arranged at the lower surfaces of the lining board; the diffusion board arranged below the circuit boards is used for diffusing light rays from the LED; and the driver is used for providing power supply. The invention solves problems in the prior art and provides an LED lighting device with the advantages of good heat radiating performance and flexible structure.

Description

The LED lighting device

Technical field

The present invention relates to a kind of lighting device, particularly relate to the lighting device of a kind of LED of use as light source.

Background technology

Relative conventional light source, LED (Light Emitting Diode, light emitting diode) light efficiency height, energy-conservation, volume is little, solid-state, the environmental protection of no mercury; LED lights and need not starter and ballast in addition, starts soon, does not have stroboscopic, is not easy visual fatigue; The led light source of function admirable also far surpasses the conventional light source several times service life, can arrive 50,000～80,000 hours; Be one of national green energy conservation illuminating engineering focus development product, so LED become main force's product of traditional lighting light sources such as replacing existing fluorescent lamp, electricity-saving lamp.

Under the prior art, LED has been used as lighting source, generally adopts direct insertion LED, in its production process, need direct insertion LED is installed on the circuit board of a large-size, but the size of circuit board is big more, be difficult to more make produce, so cost is also just high more; In addition, the illuminating product internal structure that simple splicing and design make direct insertion LED make is unreasonable, can't solve the light decay problem always, brightness was very bright when LED had just begun usefulness, with just having begun deepening a period of time of after, the major reason that light decay occurs is exactly direct insertion employing resin-encapsulated, and thermal insulation is not good, the heat radiation that produces when causing LED luminous is bad, causes the too fast aged deterioration of inner components and parts; LED adopts the illuminating product of LED also good surface appearance and performance should be arranged as lighting source of new generation, and the LED lighting device that adopts direct insertion LED and preceding method to make will day by day be eliminated.

Summary of the invention

In order to overcome the defective deficiency that prior art exists, the present technique invention provides a kind of perfect heat-dissipating, structure LED lighting device flexibly.

For achieving the above object, the technical solution adopted in the present invention is: a kind of LED lighting device, comprise a plurality of circuit boards that join end to end and connect, be respectively arranged with a plurality of LED on the lower surface of described each circuit board, described each circuit board is provided with at least one and the connector that described a plurality of LED are electrically connected, and forms electrical connection by a jockey between described each connector; Be arranged on the metal backing of described circuit board top, the dismountable respectively lower surface that is connected in described metal backing of described each circuit board; Be arranged on the diffuser plate that described circuit board below is used for light scattering that described LED is sent; And driver that is used to provide power supply.Owing to adopted technique scheme, described circuit board can interconnect from beginning to end, so the LED lighting device can be combined as random length as required, the more important thing is, no longer need large-sized printed circuit board (PCB), only need to splice between the undersized circuit board of polylith and can realize.

As a further improvement on the present invention, offer porose respectively with described each connector opposite position on the described metal backing, described each connector passes upper surface and the described jockey engagement connection of described hole at described metal backing respectively, and perforation formula design makes that product structure is simple, volume is little.

As a further improvement on the present invention, also comprise two plug devices that are separately positioned on described LED lighting device two ends, described plug device and described driver are electrically connected.

As a further improvement on the present invention, described plug device can be connected in fluorescent lamp socket.

As a further improvement on the present invention, the outside of described LED lighting device also is provided with a plastic cement pipe, described plastic cement inside pipe wall is provided with the positioning strip that extends along its length, the both ends of described plastic cement pipe are provided with an end cap that is used to seal described plastic cement tube opening respectively, the described end cap outside is respectively arranged with plug device, and the LED lighting device of having set up behind the plastic cement pipe can be directly used in the replacement fluorescent tube.

As a further improvement on the present invention, the upper surface of described metal backing is provided with radiator, described radiator comprises a plurality of substrates that extend along its length, and the downward respectively extension of the two side ends of described metal backing forms first outside groove of a pair of opening that extends along its length and a pair of second inside groove of opening that extends along its length successively.

As a further improvement on the present invention, described diffuser plate is connected with described metal backing by described second groove, the positioning strip of described plastic cement pipe is connected with described metal backing by described first groove, adopt the slot type structure to carry out socket connection, make dismounting of LED lighting device and assembling simple, if parts damages of lighting device, only need change corresponding parts gets final product, and do not need as conventional illuminator, change whole lamp body, save use cost, also increased the service life of lighting device.

As a further improvement on the present invention, described plastic cement pipe is the plastic cement pipe of perspex pipe or translucent tool light diffusion function.

As a further improvement on the present invention, described LED is surface patch type LED.

As a further improvement on the present invention, described LED is the typing LED of COB (Chip On Board, chip directly placed) nation.

Owing to adopted technique scheme, make the present invention have the following advantages: 1, mechanism is simple, and volume and weight significantly reduces, and lamp hole temperature is low, perfect heat-dissipating; 2, because described circuit board can interconnect from beginning to end,, make the LED illuminator structure more flexible than the general illumination device so the LED lighting device can be combined as different shape and all lengths as required.

Description of drawings

Accompanying drawing 1 is the stereogram of the embodiment of the invention one;

Accompanying drawing 2 is the main cutaway view of the embodiment of the invention one;

Accompanying drawing 3 is the rearview of the embodiment of the invention one;

Accompanying drawing 4 is the embodiment of the invention two stereograms;

Accompanying drawing 5 is along the right cutaway view of A-A in the accompanying drawing 4.

Wherein: 1, circuit board; 2, LED; 3, connector; 4, jockey; 5, metal backing; 6, diffuser plate; 7, driver; 8, positioning strip; 9, radiator; 10, end cap; 11, plug device; 12, housing; 13, plastic cement pipe; 14, first groove; 15, second groove.

The specific embodiment

The present invention will be further described below in conjunction with accompanying drawing.

Embodiment one

Referring to accompanying drawing 1 to accompanying drawing 3, a kind of LED lighting device, it comprises 4 small-sized circuit boards 1 that join end to end and connect, be respectively arranged with a plurality of LED2 on the lower surface of each circuit board 1, LED2 is surface patch type LED, the two ends of each circuit board 1 upper surface are provided with the connector 3 that is electrically connected with LED2 on the lower surface, the metal backing 5 that circuit board 1 top is provided with, offer porose respectively with each connector 3 opposite position on the metal backing 5, each connector 3 passes the hole respectively and fastens with jockey 4 at the upper surface of metal backing 5 and be connected, form electrical connection by jockey 4 between each connector 3, jockey 4 plays the effect that each circuit board 1 is fixed to metal backing 5 on the one hand, on the other hand, jockey 4 is socket devices, connector 3 is a plug device, thereby plays the effect that is communicated with each circuit board 1, and the top of metal backing 5 also is provided with a driver 7 that is used to provide power supply.

Circuit board 1 below is provided with the diffuser plate 6 that is used for light scattering that LED2 is sent, one housing 12 is set below diffuser plate 6, housing 12 is housed in its inner back with diffuser plate 6 and is fixedly connected with metal backing 5, metal backing 5 can also be set to shape and structure arbitrarily as required in addition, and the LED lighting device can be erected on the position of any special shape.

When power-on and driver 7 connections, driver 7 is converted into working power drive circuit board 1 with power supply, be arranged on connector 3 and jockey 4 mating reactions on the circuit board 1 this moment, the power supply on the alive circuit plate 1 is delivered on remaining circuit board 1, finish the power supply of circuit board 1; After circuit board 1 energising, it is luminous and be uniform light by diffuser plate 6 with light scattering to be arranged on LED2 conducting on the circuit board 1, outgoing and be used for illumination from scatter plate 6 again.

Embodiment two

Present embodiment and embodiment one difference are, as shown in Figure 4, the outside of present embodiment LED lighting device also is provided with a plastic cement pipe 13, and plastic cement pipe 13 is the perspex pipe, certainly, also can adopt translucent plastic pipe to strengthen the uniformity of light here with light diffusion function; The both ends of plastic cement pipe 13 are provided with an end cap 10 that is used to seal plastic cement pipe 13 openings respectively, end cap 10 outsides are respectively arranged with plug device 11, plug device 11 is electrically connected with driver 7, this plug device 11 can be connected in fluorescent lamp socket, here the fluorescent lamp socket of indication is a kind of common poroid socket that matches with plug device 11, being widely used in the daily life, is a kind of standardized interface structure, repeats no more its concrete structure here.Like this, after having set up plastic cement pipe 13 and plug device 11, this LED lighting device can be directly used in the fluorescent tube of replacing fluorescent lamp, and existing fluorescent lamp socket can be changed and only need change fluorescent tube, makes the LED lighting device replace the cost of popularizing and significantly reduces.

Present embodiment another and embodiment one difference are, shown in accompanying drawing 4 and accompanying drawing 5, the upper surface of metal backing 5 also is provided with radiator 9, radiator 9 comprises a plurality of substrates that extend along its length, the heat that LED2 distributes is delivered on the radiator 9 by metal backing 5, the substrate number contact area numerous and air that is provided with on the radiator 9 is bigger, can effectively dispel the heat.After having set up radiator 9, can on same LED lighting device a large amount of LED be set, the LED lighting device is maximized becomes possibility, and need not worry heat dissipation problem.

The 3rd of present embodiment and embodiment one difference are, as shown in Figure 5, plastic cement pipe 13 inwalls are provided with the positioning strip 8 that extends along its length, corresponding, the downward respectively extension of the two side ends of metal backing 5 forms first outside groove 14 of a pair of opening that extends along its length and a pair of second inside groove 15 of opening that extends along its length successively, diffuser plate 6 is connected with metal backing 5 by second groove 15, the positioning strip 8 of plastic cement pipe 13 is connected with metal backing 5 by first groove 14, the mode that this employing slot type structure is carried out socket connection, make dismounting of LED lighting device and assembling simple, if parts damages of lighting device, only need change corresponding parts and get final product, and not need, change whole lamp body as conventional illuminator, save use cost, also increased service life.

By above-mentioned embodiment, be not difficult to find out that the present invention is a kind of perfect heat-dissipating, a structure LED lighting device flexibly.

Above embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.

Claims

1. LED lighting device, it is characterized in that: it comprises

A plurality of circuit boards that join end to end and connect, be respectively arranged with a plurality of LED on the lower surface of described each circuit board, described each circuit board is provided with at least one and the connector that described a plurality of LED are electrically connected, and forms electrical connection by a jockey between described each connector;

Be arranged on the metal backing of described circuit board top, the dismountable respectively lower surface that is connected in described metal backing of described each circuit board, offer porosely respectively with described each connector opposite position on the described metal backing, described each connector passes upper surface and the described jockey engagement connection of described hole at described metal backing respectively;

Be arranged on the diffuser plate that described circuit board below is used for light scattering that described LED is sent; And driver that is used to provide power supply.

2. LED lighting device according to claim 1 is characterized in that: also comprise two plug devices that are separately positioned on described LED lighting device two ends, described plug device and described driver are electrically connected.

3. LED lighting device according to claim 2 is characterized in that: described plug device can be connected in fluorescent lamp socket.

4. LED lighting device according to claim 2, it is characterized in that: the outside of described LED lighting device also is provided with a plastic cement pipe, described plastic cement inside pipe wall is provided with the positioning strip that extends along its length, the both ends of described plastic cement pipe are provided with an end cap that is used to seal described plastic cement tube opening respectively, and the described end cap outside is respectively arranged with plug device.

5. LED lighting device according to claim 4, it is characterized in that: the upper surface of described metal backing is provided with radiator, described radiator comprises a plurality of substrates that extend along its length, and the downward respectively extension of the two side ends of described metal backing forms first outside groove of a pair of opening that extends along its length and a pair of second inside groove of opening that extends along its length successively.

6. LED lighting device according to claim 5 is characterized in that: described diffuser plate is connected with described metal backing by described second groove, and the positioning strip of described plastic cement pipe is connected with described metal backing by described first groove.

7. LED lighting device according to claim 6 is characterized in that: described plastic cement pipe is the plastic cement pipe of perspex pipe or translucent tool light diffusion function.

8. LED lighting device according to claim 1 is characterized in that: described LED is surface patch type LED.

9. LED lighting device according to claim 1 is characterized in that: described LED is the typing LED of COB nation.