CN202203729U

CN202203729U - Light emitting diode (LED) bulb

Info

Publication number: CN202203729U
Application number: CN201120347891XU
Authority: CN
Inventors: 李国胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-16
Filing date: 2011-09-16
Publication date: 2012-04-25
Anticipated expiration: 2021-09-16

Abstract

The utility model discloses a light emitting diode (LED) bulb, which comprises a lamp head, a lamp holder, a heat radiator, a driver, a plurality of LED light sources and two light transmission covers, wherein the heat radiator is fixedly arranged on the lamp holder, the lamp head is fixedly connected with the lamp holder, the driver is arranged in the heat radiator and is respectively and electrically connected with the lamp head and the LED light sources, the heat radiator consists of two heat radiation elements, a half cavity is respectively formed at the lower part of each heat radiation element, a light source installing plate is formed at the upper part of each heat radiation element, at least one light source installing position is formed at the outer surface of the light source installing plate, a plurality of heat radiation posts are formed at the inner surface of the light source installing plate, the LED light sources are arranged in light source installing positions, the two heat radiation elements are in relative arrangement, the two half cavities form an accommodating cavity used for accommodating the driver, a heat radiation air passage is formed between the two light source installing plates, in addition, the heat radiation posts in the middle are in staggered distribution, one light transmission cover is arranged at the outer surface of each heat radiation element, and the LED light sources are covered in the light transmission covers. The heat radiation effect of the LED bulb is good.

Description

The LED bulb

Technical field

The utility model relates to a kind of lighting device, refers in particular to a kind of light emitting diode (Light Emitting Diode; LED) bulb.

Background technology

Owing to have plurality of advantages such as low energy consumption, high light efficiency, long service life, environmental protection, the LED bulb replaces traditional incandescent lamp bulb and fluorescent lamp bulb just gradually, and is widely used in the illumination such as different places such as office, shelters.For the LED bulb; Heat radiation if the radiating effect of LED bulb is not good, and causes its operating temperature too high for weighing a very important factor of its performance; Certainly will influence it and export each item performances such as usefulness, service life such as light; Even, possibly occur causing scrapping of LED bulb because the heat alluvial too much and directly burns out the situation of led chip.

State Intellectual Property Office is that the utility model patent of CN20175296 promptly discloses a kind of LED bulb in the notification number of Granted publication on the 19th January in 2011; It includes a lamp socket, a lampshade, a plurality of LED lamp bar, one first radiator and one second radiator; A plurality of LED lamp bars are arranged on first radiator; Lampshade holds LED lamp bar and first radiator in it, and second radiator connects with first radiator and is positioned at outside the lampshade, and lamp socket then is connected in the end with respect to first radiator of second radiator; Preferably, one the 3rd radiator can be set between first radiator and second radiator.So, the heat that the LED bulb produced can cause to second radiator by first radiator (or again through the 3rd radiator), is gone out by second heat sink radiates, thereby dispels the heat effectively.

Though the disclosed LED bulb structure of above-mentioned utility model can improve the radiating efficiency of LED bulb to a certain extent; Yet; Because the LED lamp bar and first radiator are lampshade institute cover cap, the heat that is produced deposits in lampshade easily, and its radiating effect remains further to be improved.

Summary of the invention

The utility model is to solve the existing not good technical problem of the existing radiating effect of LED bulb, and a kind of LED bulb with great heat radiation effect is provided.

For solving the problems of the technologies described above, the utility model adopts the technical scheme that is described below: a kind of LED bulb includes a lamp holder, a lamp socket, a radiator, a driver, a plurality of led light source and two diffusers; Said radiator is fixedly set on the said lamp socket, and said lamp holder then is fixedly connected with said lamp socket, and said driver places within the said radiator; And be electrically connected with said lamp holder, led light source respectively; Said radiator is made up of two radiating pieces, and the place, bottom of each radiating piece is formed with half cavity, and the place, top then is formed with a light source installing plate; The outer surface of said light source installing plate is formed with at least one light source installation position; Its inner surface place then forms a plurality of thermal columns, and said led light source is arranged at place, said light source installation position, and two radiating pieces are oppositely arranged; Two halves cavity formation one is used to install the ccontaining cavity of said driver; Form a heat dissipation wind channel between the two light source installing plates, and thermal column therebetween is interspersed, each radiating piece outer surface be provided with a diffuser and with said led light source cover cap in it.

In the above-mentioned LED bulb, the end face of said ccontaining cavity is formed with at least one first air vent corresponding to said heat dissipation wind channel place, then is formed with second air vent that runs through said ccontaining cavity on the said lamp socket.

In the above-mentioned LED bulb, the light source installation position of said radiating piece is provided with a reflecting component, and set LED exposes outside said reflecting component on the said led light source.

In the above-mentioned LED bulb, the outer surface of each radiating piece is formed with two light source installation positions, and each light source installation position is provided with a led light source.

In the above-mentioned LED bulb, the inner surface edge of said light source installing plate is in same plane, and the axis of said thermal column is then perpendicular to said plane.

In the above-mentioned LED bulb, said radiator is the radiator of aluminum alloy materials preparation.

In the above-mentioned LED bulb, said diffuser is for adopting the diffuser of PC plastics or glass preparation.

The useful technique effect of the utility model is: the radiator of this LED bulb is combined by two radiating pieces; The place, top of each radiating piece is formed with a light source installing plate, and the outer surface of this light source installing plate is used to install led light source, and its inner surface place is formed with a plurality of thermal columns; Two radiating pieces are oppositely arranged and between two light source installing plates, form a heat dissipation wind channel; And thermal column therebetween is interspersed, and owing to the setting of thermal column, has increased considerably the area of dissipation of radiator; The heat that led light source produced can conduct to the bottom place of thermal column and radiating piece and distributes via the light source installing plate, thereby improves the radiating effect of LED bulb.

Description of drawings

Fig. 1 is the perspective view of the utility model.

Fig. 2 is the decomposition texture sketch map of the utility model.

Fig. 3 is the part-structure sketch map of the utility model.

Fig. 4 is the structural representation of the radiator of the utility model.

The specific embodiment

For making those of ordinary skill in the art be expressly understood purpose, technical scheme and the advantage of the utility model more, the utility model is done further elaboration below in conjunction with accompanying drawing and embodiment.

Referring to figs. 1 to shown in Figure 3; LED bulb disclosed in the utility model includes a lamp holder 10, a lamp socket 20, a radiator 30, a driver (not illustrating among the figure), a plurality of led light source 40 and two diffusers 50; Wherein, led light source 40 is arranged on the radiator 30, and for being arranged at 50 cover caps of diffuser on the radiator 30; Radiator 30 is fixedly set on the lamp socket 20; Lamp holder 10 then is fixedly connected with lamp socket 20, and driver places within the radiator 30, and it is electrically connected with lamp holder 10, led light source 40 respectively.

And consult Fig. 4; This radiator 30 adopts the metal material preparation with good heat conductive performance such as aluminium alloy; It is combined by two relative radiating pieces 300; The place, bottom of each radiating piece 300 is formed with half cavity 301, and the place, top then is formed with a light source installing plate 302, and the outer surface of this light source installing plate 302 is formed with at least one light source installation position 303.Led light source 40 is arranged at 303 places, light source installation position, and is electrically connected with the output end of driver that is arranged in the radiator 30.

In the embodiment shown in the figures, the outer surface of each radiating piece 300 is formed with two light source installation positions 303, and each light source installation position 303 is provided with a led light source 40.One of ordinary skill in the art will appreciate that ground; The formed light source of each radiating piece 300 outer surface installation position 303 is not limited to two; It can design the more or light source installation position 303 still less of number above that, to be used to install more or still less the led light source 40 of number.

The inner surface place of this light source installing plate 302 forms a plurality of thermal columns 304, and like this, the heat that is produced during led light source 40 work can conduct to thermal column 304 via light source installing plate 302, and is distributed by thermal column 304.Preferably, the inner surface edge of this light source installing plate 302 is in same plane, and the axis of thermal column 304 is then perpendicular to this plane.

Two radiating pieces 300 are oppositely arranged, and the two halves cavity 301 of its underpart constitutes one and is used to install the ccontaining cavity of driver, and forms a heat dissipation wind channel between the two light source installing plates 302 on its top, and thermal column therebetween 304 is interspersed.Preferably; The end face of this ccontaining cavity is formed with at least one first air vent 305 corresponding to the heat dissipation wind channel place; Then be formed with second air vent 200 that runs through this ccontaining cavity on the lamp socket 20, so, can increase the air quantity that flows in the heat dissipation wind channel; Accelerating to conduct to distributing of heat on the thermal column 304, and improve the radiating effect of LED bulb.

Be provided with a diffuser 50 in each radiating piece 300 outer surface, and will be arranged at led light source 40 cover caps on the light source installation position 303 in it.Diffuser 50 adopts the transparent or semitransparent material preparations such as PC plastics, glass, and the light that capable for LED light source 40 is produced transmits, and to its carry out luminous intensity distribution and obtain to stablize, illumination light uniformly.

Preferably, the light source installation position 303 of radiating piece 300 is provided with a reflecting component 60, and set LED400 exposes outside this reflecting component 60 on the led light source 40; Like this; The light that led light source 40 sends is gone out through the reflection and the projection of this reflecting component 60, light loss to reduce, and improves light efficiency.

The above is merely the preferred embodiment of the utility model, but not the utility model is done any pro forma restriction.Those skilled in the art can impose various changes that are equal to and improvement on the basis of the foregoing description, all equivalent variations or modifications of in the claim scope, being done all should fall within the protection domain of the utility model.

Claims

1. LED bulb; Include a lamp holder (10), a lamp socket (20), a radiator (30), a driver, a plurality of led light source (40) and two diffusers (50), wherein, said radiator (30) is fixedly set on the said lamp socket (20); Said lamp holder (10) then is fixedly connected with said lamp socket (20); Said driver places within the said radiator (30), and is electrically connected with said lamp holder (10), led light source (40) respectively, and it is characterized in that: said radiator (30) is made up of two radiating pieces (300); The place, bottom of each radiating piece (300) is formed with half cavity (301); The place, top then is formed with a light source installing plate (302), and the outer surface of said light source installing plate (302) is formed with at least one light source installation position (303), and its inner surface place then forms a plurality of thermal columns (304); Said led light source (40) is arranged at said light source installation position (303) and locates; Two radiating pieces (300) are oppositely arranged, and two halves cavity (301) formation one is used to install the ccontaining cavity of said driver, form a heat dissipation wind channel between the two light source installing plates (302); And thermal column therebetween (304) is interspersed, each radiating piece (300) outer surface be provided with a diffuser (50) and with said led light source (40) cover cap in it.

2. LED bulb as claimed in claim 1; It is characterized in that: the end face of said ccontaining cavity is formed with at least one first air vent (305) corresponding to said heat dissipation wind channel place, then is formed with second air vent (200) that runs through said ccontaining cavity on the said lamp socket (20).

3. LED bulb as claimed in claim 1 is characterized in that: the light source installation position (303) of said radiating piece (300) is provided with a reflecting component (60), and said led light source (40) is gone up set LED (400) and exposed outside said reflecting component (60).

4. LED bulb as claimed in claim 1 is characterized in that: the outer surface of each radiating piece (300) is formed with two light source installation positions (303), and each light source installation position (303) is provided with a led light source (40).

5. LED bulb as claimed in claim 1 is characterized in that: the inner surface edge of said light source installing plate (302) is in same plane, and the axis of said thermal column (304) is then perpendicular to said plane.

6. LED bulb as claimed in claim 1 is characterized in that: said radiator (30) is the radiator of aluminum alloy materials preparation.

7. LED bulb as claimed in claim 1 is characterized in that: said diffuser (50) is for adopting the diffuser of PC plastics or glass preparation.