CN203322813U

CN203322813U - LED (Light Emitting Diode) G4 lamp bead

Info

Publication number: CN203322813U
Application number: CN2013203751037U
Authority: CN
Inventors: 裴峻
Original assignee: HANGZHOU DREAM TECHNOLOGY Co Ltd
Current assignee: HANGZHOU DREAM TECHNOLOGY Co Ltd
Priority date: 2013-06-27
Filing date: 2013-06-27
Publication date: 2013-12-04
Anticipated expiration: 2023-06-27

Abstract

The utility model relates to an LED (Light Emitting Diode) G4 lamp bead. The LED G4 lamp bead is used for solving the problem that the power consumption is high caused by the fact that the traditional light sources are tungsten-halogen lamps, the power of a single lamp bead is 25-40w and a crystal lamp always needs dozens of G4 lamp beads serving as light sources. The LED G4 lamp bead comprises an LED light source, a lens, a lamp body, a driving circuit and an electric connector, wherein the lens can downwardly reflect light, and the electric connector is provided with two plug pins; a heat-conducting-material lining layer is lined on an inner layer of the lamp body, the top of the lining layer is a flat face and is used for mounting the LED light source, and the lens is mounted at the upper end of the LED light source; the driving circuit which is used for driving the LED light source is mounted in an internal cavity of the lamp body, a closing cover made from an insulating material is arranged at the tail of the lamp body, and the electric connector is electrically connected with the driving circuit through the two plug pins. According to the LED G4 lamp bead, the principle of radiating heat dissipation is adopted, so that the heat dissipating problem of LED G4 lamp beads in small volumes is solved.

Description

A kind of LEDG4 lamp pearl

Technical field

The utility model belongs to the lighting source technical field, specifically a kind of new LEDG4 lamp pearl for Crystal lamp.

Background technology

G4 lamp pearl is the light source of using on a kind of Crystal lamp, the general bulb of its volume ratio is compared and is seemed minimum, diameter only has 10-15mm length also to only have 30-35mm, traditional light source that Crystal lamp is used is halogen tungsten lamp, the power of single lamp pearl is at 25w-40w, often to do light source with tens G4 lamp pearls on a Crystal lamp, therefore power consumption is very large, the temperature during work of halogen tungsten lamp pearl is very high, light efficiency is quite low, and the life-span is not long, use cost is quite high, with the LED lamp, replacing is a desirable scheme, but the light efficiency that can reach with current LED lamp note mark, at least to there is the above existing power of 2w just can send the luminous flux identical with the 25w halogen tungsten lamp, be subject to the restriction of whole lamp pearl volume, the radiator of LED lamp can't reach a great problem of will having hoped for success of LED radiator, the directional lighting characteristic of LED also makes its light distribution can not meet the requirement of Crystal lamp in addition.These defects have caused LEDG4 lamp pearl to be difficult to a large amount of traditional G4 lamp pearls that replace.

Summary of the invention

The utility model, for the deficiencies in the prior art, provides a kind of LEDG4 lamp pearl.

The utility model comprises a LED light source, the lens of a downward reflection ray of energy, a lamp body, a drive circuit and an electric connector with two contact pins.

The lamp body internal layer is lined with the Heat Conduction Material lining, and the top of lining is a plane, in order to LED light source to be installed, and LED light source upper end mounted lens; The cavity of lamp body inside is installed the drive circuit for the driving LED light source, and the afterbody of lamp body is provided with the capping that insulating materials is made, and electric connector is electrically connected to drive circuit by two contact pins.

Described thermal conductive material layer is copper sheet, aluminium cortex or graphite linings.

Described lens ovalize.

The direct current that the input of described drive circuit is 12v or alternating current, its output current voltage is complementary with the LED light source of selecting.

Described lamp body outer surface is with trapezoidal protrusion striped, fin, screw-like decorative pattern or micropore.

The beneficial effects of the utility model are: the principle that has adopted heat loss through radiation, solved the heat radiation difficult problem of the LEDG4 lamp pearl that volume is very little, the heat energy produced while utilizing the high thermal conductivity of aluminium to make LED work is passed to rapidly lamp body, by lamp body, through radiation, heat is fallen apart to due to the energy of radiation, with the rising of radiant body self-temperature, the rule with 4 powers increases in air, the PN junction temperature while making LED work maintains at the temperature of setting.Oval-shaped lens arrangement increases the beam angle of lens along continuous straight runs, and lens make the outgoing luminous energy of lamp pearl meet instructions for use.

The accompanying drawing explanation

Fig. 1 is structure chart of the present utility model;

A kind of shape that Fig. 2 is lamp body outer surface the first embodiment;

The another kind of shape that Fig. 3 is lamp body outer surface the second embodiment.

The specific embodiment

Below in conjunction with accompanying drawing, specific implementation of the present utility model is described further.

The related lamp pearl of the utility model comprises a LED light source, the lens of a downward reflection ray of energy, a lamp body, a drive circuit and an electric connector with two contact pins.

LED light source can bear certain electrical power, produces enough luminous fluxes and has satisfactory colour rendering index and correlated colour temperature.

Lens are installed in the LED light source upper end, make the light distribution of lamp pearl meet the requirement that whole lamp is used, the light distribution lens of butterfly shape normally, integral body be one and the oval or circular oval lens that are complementary of cylindrical shell can be with the flood optic angle of clearing.

Lamp body is that a cross section is oval-shaped cylinder, or circular cylinder.Its surface has trapezoidal protrusion striped or fin or helical form or micropore to increase its surface area.The internal layer of cylinder is lined with highly heat-conductive material, for example copper sheet or aluminium skin or graphite linings, and the top of this lining is a plane, in order to LED light source to be installed, the cavity of inner barrel is as drive circuit is installed.The material of cylindrical shell is heat-conducting plastic or metal material or the material with carbon elements such as thermal conductive ceramic or iron with high-heating radiation coefficient, the reason that adopts this material is because of the very difficult heat that goes to dissipate the lamp pearl by cross-ventilated method in this kind of light fixture, main heat dissipation is heat loss through radiation, most heat-conducting plastics or thermal conductive ceramic or graphite have 0.9 heat emissivity coefficient, be the 15-20 of aluminothermy radiation coefficient doubly, so make heat radiation body with it, with the leave heat of lamp pearl of heat radiation mode, but the thermal conductivity of current this material is all well below copper and aluminium, so still with a highly heat-conductive material, make to install the base stage of LED in the technical program.For example use aluminium, its is close to the cylindrical shell of downward-extension and heat-conducting plastic simultaneously, or embeds in heat-conducting plastic box thermal conductive ceramic, and the heat of sending while utilizing the high thermal conductivity of aluminium that LED is worked is passed to rapidly lamp body, through lamp body and heat loss through radiation, reach the purpose that LED is worked under the junction temperature of setting again.

The direct current that the input of drive circuit is 12v or alternating current, and its output current voltage is complementary with the LED light source of selecting, the necessary miniaturization of LED, in order to can be arranged in the cavity of lamp body inside.

The afterbody of lamp body is a capping of making of insulating materials.There are two contact pins and inner drive circuit and outside G4 lamp bulb seat to be electrically connected, bond with high-temperature plastic between capping and lamp body.

Embodiment mono-

As shown in Figure 1, Figure 2 and Figure 3, the LED 2 that model is 3535 is used as light source, and it is bonded in heat-conducting glue on an aluminium base 3, and aluminium base size and lamp body mate, electrode is drawn from aluminium base, and aluminium base is fixed on the plane at aluminium lining 4 tops with heat-conducting glue.

Aluminium base is pushed down in the bottom of lens 1, makes him be close to the plane at aluminium lining top.

Lamp body is an oval hollow cylindrical shell 6, and there are trapezoidal protrusion striped or helical form decorative pattern (Fig. 2) or micropore shape (Fig. 3) or other decorative patterns for increasing surface area in surface.The material of lamp body is the heat-conducting plastic with high-heating radiation coefficient.HP-39 or use thermal conductive ceramic for example, for example, when casting forming, the die casting simultaneously of aluminium lining, interior, closely and firmly combines both.

Cavity in lamp body is for laying drive circuit.Its output voltage is 12v, consistent with the input voltage that traditional G4 lamp pearl is used.The LED light source coupling of its output voltage and electric current and use.

The bottom of lamp pearl is capping 6, and it is made with high-temperature insulation material, two contact pins is arranged in order to be electrically connected with corresponding lamp socket in capping, and capping and lamp body glue together with bonding agent.

Embodiment bis-

Making a lamp body is columnar LEDG4 lamp pearl

Light source adopts a plurality of LED to be put together in this example.Three LED press the isosceles triangle discharge and are electrically connected to a light source of formation, and four LED press the rectangle discharge, do a light source use after being electrically connected to.LED is arranged on an aluminium base or other high thermal conductive substrates, and substrate is fixed on the aluminium lining.Lamp body adopts the heat-conducting plastic with high-heating radiation coefficient.During injection moulding, the aluminium lining is placed in heat-conducting plastic, rather than is close to inner surface, so more is conducive to hot transmission and disperses.Cavity in cylindrical shell is as the treasured of laying of drive circuit.

The input voltage of drive circuit is that 12v is consistent with traditional G4 lamp pearl, the output voltage of drive circuit and electric current and light source coupling.

Claims

1. a LEDG4 lamp pearl, comprise a LED light source, the lens of a downward reflection ray of energy, and a lamp body, a drive circuit and an electric connector with two contact pins is characterized in that:

2. a kind of LEDG4 lamp pearl according to claim 1, it is characterized in that: described thermal conductive material layer is copper sheet, aluminium cortex or graphite linings.

3. a kind of LEDG4 lamp pearl according to claim 1, is characterized in that: described lens ovalize.

4. a kind of LEDG4 lamp pearl according to claim 1 is characterized in that: the direct current that the input of described drive circuit is 12v or alternating current, its output current voltage is complementary with the LED light source of selecting.

5. a kind of LEDG4 lamp pearl according to claim 1, it is characterized in that: described lamp body outer surface is with trapezoidal protrusion striped, fin, screw-like decorative pattern or micropore.