CN201934992U

CN201934992U - Heat radiating light emitting diode (LED) bulb

Info

Publication number: CN201934992U
Application number: CN2010206980250U
Authority: CN
Inventors: 史杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-28
Filing date: 2010-12-28
Publication date: 2011-08-17
Anticipated expiration: 2020-12-28

Abstract

The utility model relates to a heat radiating light emitting diode (LED) bulb, which comprises a heat radiator (1), an LED light source (4), a lamp holder (5), a lamp adapter (6) and an LED drive part (7), wherein the heat radiator is provided with an upper heat radiating body and a lower heat radiating body, the upper heat radiating body is provided with a plurality of LED light source fixing surfaces, the lower heat radiating body is provided with a cavity with an opening, the LED light source is fixed on the upper heat radiating body, the lamp holder is fixed on the opening of the lower heat radiating body, the lamp adapter is fixed on the lamp holder, so the lower heat radiating body, the lamp holder and the lamp adapter are collectively encircled to form an electric cavity, and the LED drive part is arranged in the electric cavity. The heat radiator is extent to the area of the bulb light source so as to form a way of the upper heat radiating body, so the total heat radiating area is effectively increased, the valid heat radiation for the upper heat radiating body is realized, the problems that the LED bulb area is small and the heat radiating space is insufficient can be solved, and the service life of the LED bulb can be prolonged.

Description

The heat dissipation LED bulb

Technical field

The utility model relates to a kind of lighting apparatus, particularly, relates to a kind of heat dissipation LED bulb, and it belongs to the LED technical field of semiconductor illumination.

Background technology

Along with the lifting of LED performance and the decline of cost, obtained fast development with LED as the illuminating product of light source, and replaced traditional lighting product two gradually and be applied to some indoor and outdoors illumination places.In the traditional lighting product, incandescent light bulb is the most general general light source of a kind of application.Because the light efficiency of incandescent light bulb is very low, have only about 15lm/W, therefore, adopt the LED bulb to replace incandescent light bulb and will have the considerable energy saving advantage.

But the problem that LED self exists is that its light fixture light efficiency is subjected to the influence of junction temperature of chip bigger.Higher junction temperature of chip will cause light efficiency to occur obviously descending, and can have influence on the service life of LED bulb.Therefore, the heat dissipation problem of solution LED bulb is most important for the performance that promotes the LED bulb.Because conventional bulb is exactly to rely on the hyperthermia radiation effect realization of filament self luminous, therefore, does not have the needs of heat radiation.This causes can being subjected to the restriction of conventional bulb size when replacing conventional bulb with the LED bulb, can be less for the heat-dissipating space that utilizes in the LED bulb thereby cause.

Therefore, how making full use of the structure space of conventional bulb, make the LED bulb can satisfy the standard-required of illumination, can provide enough heat-dissipating spaces again, is a technical barrier in the present LED bulb structure design.

In view of the above-mentioned shortcoming of prior art, need provide a kind of new LED bulb.

The utility model content

The purpose of this utility model provides the heat dissipation LED bulb, to overcome the above-mentioned defective of prior art, this heat dissipation LED bulb not only can be realized the comprehensive illumination of LED bulb, satisfy the standard-required of illumination, and can dispel the heat effectively, to improve the light efficiency of described LED bulb, prolong the service life of LED bulb.

Above-mentioned purpose is achieved through the following technical solutions: the heat dissipation LED bulb, comprise radiator, led light source, lamp socket, lamp holder and led driver spare, described radiator is provided with the last radiator and the following radiator of mutual binding, described radiator down is formed with the cavity of band opening, described led light source is fixed on described going up on the radiator, described lamp socket is fixed on the opening of described radiator down, described lamp holder is fixed on the described lamp socket, thereby described radiator, lamp socket and lamp holder down surround electric chamber jointly, and described led driver spare places in this electric chamber.

Preferably, the described radiator of going up has a plurality of led light source stationary planes, and each described led light source stationary plane is provided with at least one described led light source.

Preferably, described upward radiator is the multiaspect radiator with a plurality of radiating surfaces, the described radiating surface of described led light source stationary plane double as.

Preferably, described upward radiator is to have a plurality of radiators to extraradial radiating fin.

Preferably, be coated with the lampshade supporting on the described led light source with this led light source.

By technique scheme of the present utility model, described heat dissipation LED bulb is on the basis of traditional LED bulb heat radiation structure, optimize the radiator structure of bulb, make radiator run through the whole bulb space, and led light source is fixed on the radiator of top, dwindle even cancel lampshade, with the area of dissipation of abundant increase LED bulb, guarantee the performance of LED bulb, it has strengthened the radiating effect of LED bulb, improve the performance of LED bulb, and prolonged bulb life.That is to say, of the present utility model simple and reasonable, novel unique, and radiating effect is good, and it is a kind of important breakthrough and innovation to present LED bulb structure, seeks heat-dissipating space by the light source luminescent zone at the LED bulb, overcome the drawback that traditional LED bulb can only use down radiator to dispel the heat, radiator is extended to the bulb source light-emitting zone to form the mode of radiator, increased total area of dissipation of LED bulb effectively, realized efficiently radiates heat last radiator.LED bulb of the present utility model has solved the problem that LED bulb volume is little, heat-dissipating space is not enough preferably, has prolonged the service life of LED bulb, and its cost is low, and is easy to assembly, good looking appearance.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described in further detail, in the accompanying drawing:

Fig. 1 is the schematic perspective view of the radiator of a kind of specific embodiment of the utility model;

Fig. 2 is the schematic top plan view of radiator shown in Figure 1;

Fig. 3 is the schematic perspective view of the radiator of the another kind of specific embodiment of the utility model;

Fig. 4 is the schematic top plan view of radiator shown in Figure 3;

Fig. 5 is the cutaway view of the LED bulb of employing of the present utility model radiator shown in Figure 1;

Fig. 6 is the schematic top plan view of LED bulb shown in Figure 5;

Fig. 7 is the cutaway view of the LED bulb of employing of the present utility model radiator shown in Figure 3;

Fig. 8 is the schematic top plan view of LED bulb shown in Figure 7;

Fig. 9 is the cutaway view of the another kind of LED bulb of employing of the present utility model radiator shown in Figure 3;

Figure 10 is the schematic top plan view of another kind of LED bulb shown in Figure 9.

Wherein: 1 radiator; Radiator on 2; 3 times radiators; The 4LED light source; 5 lamp sockets; 6 lamp holders; The 7LED driving element; 8 lampshades; 9LED light source stationary plane; 10 radiating fins

The specific embodiment

The specific embodiment of the utility model heat dissipation LED bulb is described below in conjunction with accompanying drawing.

Extremely shown in Figure 10 referring to Fig. 1, the utility model discloses a kind of heat dissipation LED bulb with high radiating effect, comprise radiator 1, led light source 4, lamp socket 5, lamp holder 6, with led driver spare 7, wherein, described radiator 1 is provided with the last radiator 2 and the following radiator 3 of mutual binding, described radiator 3 down is formed with the cavity of band opening, described led light source 4 is fixed on described going up on the radiator 2, described lamp socket 5 is fixed on the opening of described radiator 3 down, described lamp holder 6 is fixed on the described lamp socket 5, thereby described radiator 3 down, lamp socket 5 and lamp holder 6 surround electric chamber jointly, and described led driver spare 7 places in this electric chamber.

To shown in Figure 10, LED bulb of the present utility model can not have lampshade as Fig. 5, perhaps can be coated with lampshade 8 or the lens supporting with this led light source 4 on led light source 4.

In addition, the described radiator 2 of going up can adopt multiple version, and referring to Fig. 1 to Fig. 4, the described radiator 2 of going up has a plurality of led light source stationary planes 9, and each led light source stationary plane 9 is provided with at least one described led light source 4.The described radiator 2 of going up can be for having the multiaspect radiator of a plurality of radiating surfaces, and the area of above-mentioned light source stationary plane 9 forms greatlyyer, does described radiating surface with double; It is perhaps described that upward radiator can be for having a plurality of radiators to extraradial radiating fin 10.

Below referring to figs. 1 through Figure 10 the concrete structure of LED bulb of the present utility model is described in further detail.

Referring to illustrated in figures 1 and 2, the last radiator 2 of the radiator 1 in the utility model is when having the multiaspect radiator of a plurality of radiating surfaces, can fix one on each face to plurality of LEDs light source 4, light angle, luminous flux, power that the face number of last radiator 2 need be realized by the LED bulb are determined, the face number can be for more than three or three, thereby realize omnibearing illumination.

As shown in Figure 3 and Figure 4, the last radiator 2 of radiator 1 of the present utility model is when being distributed with the radiator of outside radiation fin 10, led light source 4 is fixed in the bottom of the angle of adjacent radiating fin formation, angle bottom is plane (being led light source stationary plane 9), the quantity that fixing led light source 4 is gone up in this angle bottom be one at the most.Light angle, luminous flux, power that the quantity of the radiating fin that distributes on the last radiator 2 need realize according to the LED bulb are determined.

LED bulb of the present utility model, area of dissipation for the last radiator 2 that makes full use of radiator 1, to be contracted to traditional lampshade size and only cover led light source 4, perhaps lampshade is become lens, lens are only covered on the led light source 4, and the last radiator 2 of increase exposes the area in external environment as far as possible.When led light source 4 is complete package module, when need not to be welded on the circuit board, the module of forming by multi-chip LED that comprises optical element, electric interfaces for example, the LED bulb can be cancelled lampshade, the heat-sinking capability of radiator 2 in the maximized utilization.

In addition, preferably, LED bulb of the present utility model, the inside of the last radiator 2 in the radiator 1 also can be hollow, with the area of dissipation of radiator 2 in the further increase.

LED bulb of the present utility model is when led light source 4 can directly be connected alternating current and when luminous, in the electric chamber that following radiator 3, lamp socket 5 and lamp holder 6 form, can only place led driver spares such as resistance, electric capacity, inductance.

Illustrated in figures 1 and 2 is the schematic perspective view and the schematic top plan view of the radiator 1 of a kind of specific embodiment of the utility model.Radiator 1 comprises last radiator 2 and following radiator 3 two parts of mutual binding.The last radiator 2 that shows among the figure is the multiaspect column construction, has four led light source stationary planes 9.The inside of following radiator 3 is the cavity form, is used to place some electronic devices and components, for example led driver spare.

The schematic perspective view and the schematic top plan view of Fig. 3 and the radiator 1 that Figure 4 shows that the another kind of specific embodiment of the utility model.Radiator 1 is for being distributed with the column construction of outside radiation fin, and the quantity of radiating fin 10 is four, and the quantity of led light source stationary plane 9 is four, and led light source stationary plane 9 is positioned at the angle position of adjacent radiating fin 10, therefore forms narrowlyer.The inside of following radiator 3 is the cavity form, is used to place led driver spare etc.

Fig. 5 and the cutaway view and the schematic top plan view that Figure 6 shows that the LED bulb of a kind of embodiment of the utility model.Radiator 1 is the structure shown in Fig. 1, and led light source 4 is fixed on the radiator 2, and lamp socket 5 is fixed on down on the radiator 3, and lamp holder 6 is fixed on the lamp socket 5, and driving element 7 places down in the electric chamber of radiator 3, lamp socket 5 and lamp holder 6 formation.The heat that led light source 4 sends is directly realized heat exchange by last radiator 2 exposed aerial surfaces.LED bulb in the present embodiment does not have elements such as lampshade, does not cover any optical element on the led light source 4 yet.

As shown in Figure 7 and Figure 8, the structural representation of analysing and observe and overlook direction of the LED bulb of the another kind of form radiator of employing of the present utility model.Different with the LED bulb among Fig. 3 is that the structure of the radiator 1 that is adopted among this figure is the radiator among Fig. 2.

As Fig. 9 and shown in Figure 10, be the modified of LED bulb among Fig. 4, be coated with a small-sized lampshade 8 among the figure on the led light source 4.Because the size of lampshade 8 is less, does not shelter from most of area of dissipation of radiator 2, so can not have influence on the heat radiation of LED bulb.On led light source 4, add lampshade 8 and can further protect led light source 4.

By last description as seen, heat dissipation LED bulb of the present utility model is on the basis of traditional LED bulb heat radiation structure, optimize the radiator structure of bulb, make radiator run through the whole bulb space, and led light source is fixed on the radiator of top, dwindle even cancel lampshade, with the area of dissipation of abundant increase LED bulb, guarantee the performance of LED bulb, it has strengthened the radiating effect of LED bulb, improve the performance of LED bulb, and prolonged bulb life.Heat dissipation LED bulb of the present utility model has constituted a kind of important breakthrough and the innovation to present LED bulb structure, it seeks heat-dissipating space by the light source luminescent zone at the LED bulb, overcome the drawback that traditional LED bulb can only use down radiator to dispel the heat, radiator is extended to the bulb source light-emitting zone to form the mode of radiator, increased total area of dissipation of LED bulb effectively, and led light source is fixed on the radiator, cancel or reduce the lampshade size, it is little to preferably resolve LED bulb volume, the problem of heat-dissipating space deficiency has realized the efficiently radiates heat to last radiator.Therefore, LED bulb of the present utility model has solved the problem that LED bulb volume is little, heat-dissipating space is not enough preferably, has prolonged the service life of LED bulb, and its cost is low, and is easy to assembly, good looking appearance.

Each concrete technical characterictic described in the above-mentioned specific embodiment can make up arbitrarily by any suitable manner, and it falls within the scope disclosed in the utility model equally.Simultaneously, also can make up arbitrarily between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.In addition; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model, can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.Protection domain of the present utility model is defined by the claims.

Claims

1. heat dissipation LED bulb, comprise radiator (1), led light source (4), lamp socket (5), lamp holder (6) and led driver spare (7), it is characterized in that, described radiator (1) is provided with the last radiator (2) and the following radiator (3) of mutual binding, described radiator (3) down is formed with the cavity of band opening, described led light source (4) is fixed on described going up on the radiator (2), described lamp socket (5) is fixed on the opening of described radiator (3) down, described lamp holder (6) is fixed on the described lamp socket (5), thereby described radiator (3) down, lamp socket (5) and lamp holder (6) surround electric chamber jointly, and described led driver spare (7) places in this electric chamber.

2. heat dissipation LED bulb according to claim 1 is characterized in that, the described radiator (2) of going up has a plurality of led light source stationary planes (9), and each described led light source stationary plane (9) is provided with at least one described led light source (4).

3. heat dissipation LED bulb according to claim 2 is characterized in that, the described radiator (2) of going up is for having the multiaspect radiator of a plurality of radiating surfaces, the described radiating surface of described led light source stationary plane (9) double as.

4. heat dissipation LED bulb according to claim 2 is characterized in that, the described radiator (2) of going up is for having a plurality of radiators to extraradial radiating fin (10).

5. heat dissipation LED bulb according to claim 1 is characterized in that, is coated with the lampshade (8) supporting with this led light source (4) on the described led light source (4).