CN202048397U

CN202048397U - LED lamp convenient to maintain

Info

Publication number: CN202048397U
Application number: CN2010206621633U
Authority: CN
Inventors: 黄柱联
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-16
Filing date: 2010-12-16
Publication date: 2011-11-23
Anticipated expiration: 2020-12-16

Abstract

The utility model discloses an LED lamp convenient to maintain, which includes a lamp holder assembly, a graphite radiator, an LED metal base plate, an LED chip arranged on the LED metal base plate, and an outer cover assembly. The lamp holder assembly includes a connector, a lamp holder casing and a power supply circuit board; the connector is fixed at the top end of the lamp holder casing; the power supply circuit board is fixed in the lamp holder casing; an input end of a power supply circuit is electrically connected with the connector; an elastic connecting output terminal serving as an output end of the power supply circuit is arranged at the bottom end of the power supply; a locking assembly includes an installation connecting plate and a bolt component; the graphite radiator is fixed with the LED metal base plate and the installation connecting plate through the bolt component; an electric contact lower connecting plate corresponding to the elastic connecting output terminal is fixed on the installation connecting plate and electrically connected with the LED chip; and the lamp holder casing and the installation connecting plate are detachably connected through threads. The maintenance is more simple and convenient.

Description

A kind of LED light fixture easy to maintenance

Technical field

The utility model relates to a kind of LED illuminating lamp, especially high-power LED lighting.

Background technology

Power consumption is little, the advantage of long service life because LED has, and is extensive use of in a lot of fields, especially uses in light fixture.

At present, LED generally can only use in the small-power light fixture, comprises ornament lamp etc., and can't realize commercialization in powerful lighting, and as street lamp etc., the big more light efficiency of power is low more, and the life-span is short more, and tracing it to its cause is because heat dissipation problem.That is to say that the key problem of light source is still dispelled the heat at present, it is bad to dispel the heat, and can cause the LED light decay to be accelerated, and light efficiency reduces, the lost of life, and reliability reduces, and maintenance cost raises.

Certainly, some high-power LED light fixtures are also arranged on the market in exemplary use, but, usually the radiator structure of these products is very complicated, includes bulky aluminium alloy heat radiator, so not only expends a large amount of resources, difficulty is installed, and, still be difficult to real effectively the solution by these structures at present and be higher than 5W, the heat dissipation problem as 50W or above high-power LED illuminating lamp still causes shorten the service life of these light fixtures.

In addition, also there are some to adopt the graphite radiating material using as the LED light fixture of radiator, it has the advantage that radiating rate is fast, efficient is high, can improve the service life of LED greatly, especially service life of great power LED, but the structure of the LED light fixture of these use graphite radiating bodies is still unreasonable at present, and result of use is still waiting to improve.

In addition, be called in the patent application of " a kind of LED light fixture " in the name of submitting in the early time the applicant, a kind of LED light fixture is disclosed, comprise lamp base component, graphite radiating body, LED metal substrate, be arranged at led chip and cover member on the LED metal substrate, the LED metal substrate is fixed on the lamp base component by the clamping screw assembly that passes its central part, graphite radiating body successively and be connected to lamp base component, and the thermal source place, the back side of LED metal substrate closely contacts with the front end face of graphite radiating body.Wherein, between the input of the power supply apparatus in its lamp socket and output and lamp holder and the led chip is directly to be connected with cable, above-mentioned fitting structure is simple, result of use good, but exist more not enough, be exactly because the long service life of common its led chip of LED light fixture is longer than the life-span of power circuit, and in this structure, adopt the direct-connected mode of cable, be not easy to maintenance in the future, so this structure remains further to be improved.

Summary of the invention

In order to solve the above problems, the purpose of this utility model is to provide a kind of rational in infrastructure, assembling, LED light fixture easy to maintenance.

The technical scheme that the invention for solving the technical problem adopted is:

A kind of LED light fixture easy to maintenance, comprise lamp base component, the graphite radiating body, the LED metal substrate, be arranged at led chip and cover member on the LED metal substrate, the LED metal substrate is by latch assembly and graphite radiating body, lamp base component is fixedly connected, the thermal source place, the back side of LED metal substrate closely contacts with the front end face of graphite radiating body, described lamp base component comprises connector, lampholder shell and power supply circuit board, connector is fixed on the top of lampholder shell, power supply circuit board is fixed in the lampholder shell, the input of its power circuit is electrically connected with connector, the elasticity that the bottom of power supply circuit board is provided with as power circuit output end connects electric lead-out terminal, latch assembly comprises installs connecting plate and bolt assembly, the graphite radiating body is fixed with the installation connecting plate by bolt assembly and LED metal substrate, install be fixed with on the connecting plate with elasticity connect electric lead-out terminal corresponding electrically contact lower connecting plate, electrically contacting lower connecting plate is electrically connected with led chip, outer cover of lamp holder with install that connecting plate is removable to be threaded, realize dismantled and assembled connection the between graphite radiating body and the lamp base component.

The beneficial effects of the utility model are: because this LED lighting adopts the mode that closely contacts between graphite radiating body and the metal substrate, has better heat radiating effect, it is simple in structure, in light weight, volume is little, easily, be easy to the temperature of led chip is remained on below 60-70 ℃, make the operate as normal of high-power LED illuminating lamp, result of use and service life can not be affected because of heat radiation, go for 10W, 50W, even the above high-power LED illuminating lamp of 50W, and, because being fixed between the input of power circuit output end and led chip in the lamp base component is that the activity of employing elasticity contacts, in maintenance process, need not to remove cable, when making outer cover of lamp holder and installing that turn embeds mutually between the connecting plate, both distances shorten, elasticity in the lamp base component connects electric lead-out terminal and is crimped on downwards and electrically contacts on the lower connecting plate, can realize being electrically connected, back-out makes outer cover of lamp holder, just separate the energising circuit between led chip and the power supply circuit board simultaneously fully, working service is very convenient.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the schematic appearance of the utility model light fixture;

Fig. 2 is a cutaway view of the present utility model;

Fig. 3 is a fractionation structural representation of the present utility model.

The specific embodiment

With reference to Fig. 1-Fig. 3, a kind of LED light fixture easy to maintenance of the present utility model comprises lamp base component 1, graphite radiating body 2, LED metal substrate 3, is arranged at led chip 4 and cover member 5 on the LED metal substrate 3.

Led chip 4 can be directly or is arranged at indirectly on this LED metal substrate, as can directly being encapsulated on the substrate, or is arranged on this metal substrate by the additional metals substrate, is coated with sealing on the led chip, in the sealing fluorescent material etc. can be arranged.

Wherein, led chip can have a plurality of, and led chip is around being arranged on the metal substrate, be specifically as follows along being circular layout, but be not limited to annulus, side's ring or other loopful around or semi-ring around shape.

Described metal substrate can have the metal material of heat sinking function for aluminium base, copper pedestal etc.

LED metal substrate 3 is by latch assembly and graphite radiating body 2, lamp base component 1 is fixedly connected, the thermal source place, the back side of LED metal substrate 3 closely contacts with the front end face of graphite radiating body 2, described lamp base component 1 comprises connector 11, lampholder shell 12 and power supply circuit board 13, connector 11 is fixed on the top of lampholder shell 12, power supply circuit board 13 is fixed in the lampholder shell 12, the input of its power circuit is electrically connected with connector 11, the elasticity that the bottom of power supply circuit board 13 is provided with as power circuit output end connects electric lead-out terminal 17, latch assembly comprises installs connecting plate 14 and bolt assembly 15, graphite radiating body 2 is fixing with LED metal substrate 3 and installation connecting plate 14 by bolt assembly 15, install be fixed with on the connecting plate 14 with elasticity connect electric lead-out terminal 17 corresponding electrically contact lower connecting plate 16, electrically contacting lower connecting plate 16 is electrically connected with led chip 4, outer cover of lamp holder 12 and connecting plate 14 removable being threaded are installed is realized dismantled and assembled connection the between graphite radiating body 2 and the lamp base component 1.

In addition, connecting plate 14 is installed and is electrically contacted lower connecting plate 16 and can be the split structure, also can be integrated.

Further, the top of described power supply circuit board 13 is provided with elasticity and connects the input of electrical input 18 as power circuit, have on the connector 11 with elasticity connect electrical input 18 corresponding electrically contact upper junction plate 19, make that simultaneously power supply circuit board also is easy to pull down in lampholder shell 12, safeguard more convenient.

Further, the inner chamber of described connector 11 has draw-in groove 30, and power supply circuit board 13 is pegged graft and is fixed on the draw-in groove 30, and dismounting is more convenient.

In addition, the circumferential outer surface of described graphite radiating body 2 exposes, good heat dissipation effect.

Further, the radiator air vent 10 that is arranged at graphite radiating body 2 back sides is arranged on the described lamp base component 1, louvre 80 is arranged at the top of connector 11.

Bolt assembly 15 comprises hitching post 60 and the upper and

lower clamping screw

61,62 of being with cable hole 65, hitching post 60 is inserted in the through hole 22 of graphite radiating body 2, its two ends install and fix with connecting plate 14 and LED metal substrate 3 are installed respectively by upper and

lower clamping screw

61,62, and the power input line of led chip 4 passes from this cable hole 65.

In addition, described cover member 5 is connected and fixed with LED metal substrate 3, covers the front end of led chip 4.Wherein, described cover member 5 specifically can comprise outer outlet body 50, installing ring 51 and connecting ring 52, locking between connecting ring 52 and the LED metal substrate 3, being specially on the periphery of connecting ring 52 has connecting hole 54, and corresponding screw 35 is arranged on LED metal substrate 3, and both connect between the hole and connect by stove bolt 56 lockings, there is external screw thread in the outside of connecting ring 52, there is internal thread the inboard of installing ring 51, is threaded on the connecting ring 52 by installing ring 51, thus the fixed installation of realization outer outlet body 50.

When above-mentioned LED light fixture is worked, the heat that led chip produced is delivered on the metal substrate, because metal substrate contacts with the graphite radiating body, thereby can be delivered on the graphite radiating body fast by its heat that gathers, simultaneously, the graphite radiating body has good radiating effect, the temperature of led chip can be remained on below 60-70 ℃ easily, make the high-power LED illuminating lamp operate as normal, result of use and service life can not be affected because of heat radiation.

Certainly, the invention is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with essentially identical means, all should belong to protection domain of the present utility model.

Claims

1. LED light fixture easy to maintenance, comprise lamp base component (1), graphite radiating body (2), LED metal substrate (3), be arranged at led chip (4) and cover member (5) on the LED metal substrate (3), LED metal substrate (3) is by latch assembly and graphite radiating body (2), lamp base component (1) is fixedly connected, the thermal source place, the back side of LED metal substrate (3) closely contacts with the front end face of graphite radiating body (2), it is characterized in that: described lamp base component (1) comprises connector (11), lampholder shell (12) and power supply circuit board (13), connector (11) is fixed on the top of lampholder shell (12), power supply circuit board (13) is fixed in the lampholder shell (12), the input of its power circuit is electrically connected with connector (11), the elasticity that the bottom of power supply circuit board (13) is provided with as power circuit output end connects electric lead-out terminal (17), latch assembly comprises installs connecting plate (14) and bolt assembly (15), graphite radiating body (2) is fixing with LED metal substrate (3) and installation connecting plate (14) by bolt assembly (15), install be fixed with on the connecting plate (14) with elasticity connect electric lead-out terminal (17) corresponding electrically contact lower connecting plate (16), electrically contacting lower connecting plate (16) is electrically connected with led chip (4), outer cover of lamp holder (12) and removable being threaded of connecting plate (14) is installed is realized dismantled and assembled connection the between graphite radiating body (2) and the lamp base component (1).

2. a kind of LED light fixture easy to maintenance according to claim 1, it is characterized in that: the top of described power supply circuit board (13) is provided with elasticity and connects the input of electrical input (18) as power circuit, have on the connector (11) with elasticity connect electrical input (18) corresponding electrically contact upper junction plate (19).

3. according to claim 1 or 2 described a kind of LED light fixtures easy to maintenance, it is characterized in that: the inner chamber of described connector (11) has draw-in groove (30), and power supply circuit board (13) is pegged graft and is fixed on the draw-in groove (30).

4. a kind of LED light fixture easy to maintenance according to claim 3, it is characterized in that: the circumferential outer surface of described graphite radiating body (2) exposes.

5. a kind of LED light fixture easy to maintenance according to claim 1 is characterized in that: the radiator air vent (10) that is arranged at graphite radiating body (2) back side is arranged on the described lamp base component (1).

6. according to claim 1 or 5 described a kind of LED light fixtures easy to maintenance, it is characterized in that: louvre (80) is arranged at the top of connector (11).

7. a kind of LED light fixture easy to maintenance according to claim 1, it is characterized in that: bolt assembly (15) comprises the hitching post (60) and the upper and lower clamping screw (61,62) of band cable hole (65), hitching post (60) is inserted in the through hole (22) of graphite radiating body (2), its two ends install and fix with connecting plate (14) and LED metal substrate (3) are installed respectively by upper and lower clamping screw (61,62), and the power input line of led chip (4) passes from this cable hole (65).