CN201297527Y

CN201297527Y - LED bulb with radiator

Info

Publication number: CN201297527Y
Application number: CNU2008201786971U
Authority: CN
Inventors: 李锦�
Original assignee: ZHOUSHAN HAODE OPTO-ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: ZHOUSHAN HAODE OPTO-ELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2008-11-07
Filing date: 2008-11-07
Publication date: 2009-08-26
Anticipated expiration: 2018-11-07

Abstract

An LED bulb with a radiator is a light fitting which adopts an LED light source and comprises a lamp shade, a lamp panel, a radiator, a driving power source, LEDs and a lamp cap, wherein a plurality of LEDs are connected in series and connected with the driving power source and the lamp cap; the LEDs are welded on the lamp panel, one side of the lamp panel is fixed with a mirror reflector with multiple angles, and the other side is tightly attached to the radiator; the lamp panel is fixed on a lamp shade interface, the lamp shade interface is connected with the lamp shade, and a sealing ring is arranged between the lamp shade and the lamp shade interface; a sealing ring is arranged at the connection position of the radiator and the lamp shade interface; the lamp shade interface is fixedly connected with a lamp cap interface, the driving power source is arranged in the lamp cap interface which is fixedly connected with the lamp cap, the lateral surface of the lamp cap interface is provided with a drain hole and a plurality of air inlets, the lateral surface of the lamp cap interface is provided with a plurality of exhaust holes, and the center of the lamp cap interface is provided with a semisphere-shaped prerotation vane. The utility model is used for lighting in various fields.

Description

The LED bulb that has radiator

Technical field

The utility model relates to a kind of lighting device, particularly a kind of LED bulb that has radiator.

Background technology

In the prior art, the employed light source of lighting device mainly comprises incandescent lamp, fluorescent lamp and LED (light emitting diode) lamp.Wherein, incandescent lamp belongs to the thermoluminescence body, its electric energy that is consumed at work is mainly used in the heat filament element, make it at high temperature luminous, because this operation principle, the electric energy overwhelming majority that this light source consumed is converted into heat energy, has only the electric energy of small part to be converted into luminous energy, and photoelectric conversion rate is lower.Fluorescent lamp belongs to gas-discharge lamp, also belong to the thermoluminescence body, on photoelectric conversion rate, improve than incandescent lamp, but, its higher operating ambient temperature that need compare, under cryogenic conditions, start difficulty, and the luminescent substance that charges in the fluorescent lamp damages in case overflow and can pollute environment to the person when fluorescent tube breaks.The common defects of the lighting device of these thermoluminescence bodies of incandescent lamp and fluorescent lamp is exactly that on-off effect speed is slow, light efficiency is low, the life-span is short.In recent years, LED uses in lighting apparatus gradually as new light source technology, the led light source principle of luminosity does not belong to the thermoluminescence principle, and LED is a kind of solid-state semiconductor devices, and it can directly be converted into light to electricity, its caloric value is few, belong to a kind of cold light source, the energy conversion rate height, reaction speed is fast during switch, require lower operating ambient temperature during its work, too high operating ambient temperature can make shorten its service life even burn.Led light source is suitable as new lighting source and uses, and is particularly suitable for using as lighting device under low temperature environment.The led light source device in use, its light-emitting component and circuit board and driving power also can produce certain heat, need in time this heat to be distributed, and are in best operating temperature to keep the LED element, and it can be increased the service life, and improve light efficiency.

In the prior art, the structure design that some technical schemes disclose attempts to solve heat dissipation problem from different perspectives, for example the technical scheme of ZL200520136398.4 patent is at the lamp holder rear portion fin to be set, and in the base periphery louvre is set, and solves heat dissipation problem; For solving the projection problem of light, on light fixture, be provided with reflector.In 20051093707.2 application for a patent for invention open files, be to solve the projection problem of light, taper light reflection hole is set comes reverberation at the plate place that is permanently fixed of each high-power LED element; Connecting the heat conduction holder by back of circuit board dispels the heat.Prior art does not have the technical problem of fine solution to be: how to improve radiating efficiency to reduce the volume of radiator, how in use to solve light fixture moistureproof and waterproof problem; The shadow problem that also has in the light fixture LED element projection light in groups to produce.For LED light fixture technology can be reliably, safety, longevity, use efficiently, and make projection light even, the LED lamp structure is designed to the key problem in technology of needing solution badly.

The utility model content

In order to solve the key problem in technology problem that prior art exists, the purpose of this utility model is to provide a kind of LED bulb that has radiator, and the work that it can be safe and reliable have waterproof, efficient, long-lived technical characterstic, and projection light is even.

To achieve these goals, the technical solution of the utility model is:

Have the LED bulb of radiator, comprise lampshade, lamp plate, radiator, driving power, LED, lamp holder, a plurality of LED are connected in series, and be electrically connected with driving power, lamp holder, wherein: LED is welded on the lamp plate, and lamp plate one side is the multi-angle reflect mirror fixedly, and the lamp plate opposite side fits tightly radiator; Lamp plate is fixed on the lampshade interface, and the lampshade interface connects lampshade, and sealing ring is set between the two; Radiator and lampshade interface joint are provided with sealing ring; The fixedly connected lamp holder interface of lampshade interface, driving power is placed in one, the fixedly connected lamp holder of lamp holder interface; The lampshade interface sides is provided with osculum and a plurality of air admission hole; The lamp holder interface sides is provided with a plurality of steam vents; Lamp holder interface central authorities are provided with the hemispherical flow deflector.

Radiator is rectangle or circular radiator.

Radiator is the circle or the polygon radiator of a plurality of fan-shaped compositions.

Radiator is the integral body that is connected with a plurality of fins by heat-conducting plate, and fin shape is rectangle, circle or polygon.

Radiator is to have the heat-conducting plate of fin and the combined radiating device of capillary heat pipe.

The lampshade material is the PMMA material of light transmittance more than 90%, the single face frosting.

Lamp plate one side fits in radiator by heat-conducting glue.

Because after adopting such scheme, the utility model in use, the heat that LED produces at work is transmitted to radiator by lamp plate, by the air that the air admission hole on the lampshade interface enters the heat of radiator and driving power is taken away, the steam vent from the lamp holder interface is discharged outside the lamp body, and the temperature in the LED bulb is reduced, LED is worked under lower temperature, not only prolong the life-span of LED, reduce power consumption, also make the more use of stability and high efficiency of bulb; Lampshade interface, lamp holder interface, lampshade are set lamp plate and internal wiring are isolated from the outside out, improve LED bulb personal safety performance in use; Between lampshade and the lampshade interface, and sealing ring is set all between lampshade interface and the radiator, prevent to contact with lamp plate, LED from the water that air admission hole and steam vent may enter, and the water that osculum may enter is set on the lampshade interface discharges lamp body at any time, make bulb safety and reliability in use, can under small size, realize the heat radiation of high-power illumination lamp; Fixing multi-angle reflect mirror before lamp plate simultaneously, the minute surface of multi-angle reflect mirror make the round illumination of LED penetrate direction to change, make by lampshade and shine the light mutual superposition of coming out, make projection light even, avoid producing hot spot.

Description of drawings

Fig. 1 has the LED bulb cutaway view of radiator for the utility model;

Fig. 2 has the LED bulb front view of radiator for the utility model.

Label in the accompanying drawing:

1. lampshade, 2. multi-angle reflect mirror, 3. lamp plate, 4. sealing ring, 5. radiator, 6. lamp holder joint, 7. driving power, 8. lamp holder, 9. sealing ring, 10. osculum, 11. air admission holes, 12. flow deflectors, 13. screw, 14. screws, 15.LED, 16. lampshade interfaces, 17. steam vents.

The specific embodiment

Below in conjunction with Figure of description the specific embodiment that the utility model has the LED bulb of radiator is further described.

As Fig. 1, shown in Figure 2, further specify a kind of concrete enforcement structure that has the LED bulb of radiator of the utility model:

The LED bulb that has radiator, comprise lampshade 1, lamp plate 3, radiator 5, driving power 7, LED15, lamp holder 8, a plurality of LED15 are connected in series, and with driving power 7, lamp holder 8 is electrically connected by lead, LED15 is welded on the lamp plate 3, lamp plate 3 is towards the fixing multi-angle reflect mirror 2 of lampshade 1 one sides, LED15 exposes from multi-angle reflect mirror 2, and its light that sends intersects the circular light of LED15 through 2 reflections of multi-angle reflect mirror, changing becomes scattered light, because the PMMA material of material selection light transmittance more than 90% of lampshade 1, lampshade 1 has the single face frosting, produces the light stack when light sees through lampshade 1, avoided the generation hot spot, made illuminating ray even.Lamp plate 3 opposite sides fit tightly a radiator 5, in order to make heat transfer efficiency higher, can use heat-conducting glue that lamp plate 3 is bonded on the radiator 5, the heat that LED15 in use produces is transmitted to radiator timely, make LED15 can keep best operating temperature, the material of radiator 5 is generally selected the material of perfect heat-dissipating, for example aluminum for use.The structure of radiator 5 is the integral body that is connected with a plurality of fins by heat-conducting plate, and fin shape is rectangle, circle or polygon, has air duct between fin and the fin, and flow air is taken away heat through therebetween the time.The shape of the heat sink of radiator 5 can be made into rectangle, circle or polygonal shape, it can be an overall structure, also can form by a plurality of fan-shaped amalgamations, perhaps radiator 5 being made becomes the heat-conducting plate that has fin and the combined radiating device of capillary heat pipe, improve the radiating efficiency of radiator 5, can make LED bulb overall dimensions littler, compacter, not only save material, and increased more use prospect.

Lamp plate 3 is fixed on the lampshade interface 16 by screw 14, and lampshade 1 is installed on the lampshade interface 16, and sealing ring 9 is set between the two, and anti-sealing enters between lampshade 1 and the lamp plate 3, avoids leaking electricity and the corrosion failure of water to lamp plate 3, LED.Lampshade interface 16 fixedly connected lamp holder interfaces 6, lamp holder interface 6 fixedly connected lamp holders 8, constitute the main body of LED bulb, driving power 7 is placed in one, be fixed on the lamp holder interface 6 by screw 13, lamp holder interface 6 wraps up each live part with lampshade interface 16 and has avoided contacting of people, accomplishes safe handling.The edge of radiator 5 is pressed on lampshade interface 16 inside, and radiator 5 is provided with sealing ring 4 with lampshade interface 16 joints, can prevent that sealing bleeds from the slit between lamp body rear portion radiator 5 and the lampshade interface 16, prevents to cause lamp plate 3 electric leakages and corrosion.Lampshade interface 16 sides are provided with a plurality of air admission holes 11, lamp holder interface 6 sides are provided with a plurality of steam vents 17, the LED bulb in use, air is provided with a plurality of air admission holes 11 from lampshade interface 16 sides and enters in the lamp body, the flow through fin and the driving power 7 of radiator 5, heat is taken away, and hot-air rises, and a plurality of steam vents 17 that are provided with through lamp holder interface 6 sides are discharged lamp body.In lamp holder interface 6 central authorities hemispherical flow deflector 12 being set is in order to reduce the delay of hot-air in lamp body inside, with lead the more smoothly steam vent 17 of lamp body interface 6 of hot-air.Owing to have steam vent 17 and air admission hole 11 on lamp holder interface 6 and the lampshade interface 16; the LED bulb uses in outdoor or wet environment; be difficult to avoid water to enter in the lamp body from air admission hole 11 and steam vent 17; though driving power 7 is waterproof sealing protections; still need water is discharged in lamp body, therefore, osculum 10 is set in the side of lampshade interface 16; be used for discharging the water that may enter in the lamp body, make the safer longevity of LED bulb.

Owing to adopt above-mentioned structure design, under the prerequisite that guarantees lamp brightness, reduced power consumption, improve photoelectric transformation efficiency, effectively prolonged the life-span of LED, improve illuminating effect.This LED bulb can be used for the various occasions that need high-power illumination, the place illumination that environmental conditions such as especially outdoor or humidity are abominable.

Claims

1, a kind of LED bulb that has radiator comprises lampshade, lamp plate, radiator, driving power, LED, lamp holder, and a plurality of LED are connected in series, and is electrically connected with driving power, lamp holder, it is characterized in that:

LED is welded on the lamp plate, and lamp plate one side is the multi-angle reflect mirror fixedly, and the lamp plate opposite side fits tightly radiator;

Lamp plate is fixed on the lampshade interface, and the lampshade interface connects lampshade, and sealing ring is set between the two;

Radiator and lampshade interface joint are provided with sealing ring;

The fixedly connected lamp holder interface of lampshade interface, driving power is placed in one, the fixedly connected lamp holder of lamp holder interface;

The lampshade interface sides is provided with osculum and a plurality of air admission hole;

The lamp holder interface sides is provided with a plurality of steam vents;

Lamp holder interface central authorities are provided with the hemispherical flow deflector.

2, the LED bulb that has radiator according to claim 1, it is characterized in that: radiator is rectangle or circular radiator.

3. the LED bulb that has radiator according to claim 1 is characterized in that: radiator is the circle or the polygon radiator of a plurality of fan-shaped compositions.

4, according to claim 2 or the 3 described LED bulbs that have radiator, it is characterized in that: radiator is the integral body that is connected with a plurality of fins by heat-conducting plate, and fin shape is rectangle, circle or polygon.

5, the LED bulb that has radiator according to claim 1 is characterized in that: radiator is to have the heat-conducting plate of fin and the combined radiating device of capillary heat pipe.

6, the LED bulb that has radiator according to claim 1 is characterized in that: the lampshade material is the PMMA material of light transmittance more than 90%, the single face frosting.

7, the LED bulb that has radiator according to claim 1, it is characterized in that: lamp plate one side fits in radiator by heat-conducting glue.