CN201363578Y

CN201363578Y - Light emitting diode lamp

Info

Publication number: CN201363578Y
Application number: CNU2009200032882U
Authority: CN
Inventors: 卢裔大
Original assignee: Darfon Electronics Suzhou Co Ltd; Darfon Electronics Corp
Current assignee: Darfon Electronics Suzhou Co Ltd; Darfon Electronics Corp
Priority date: 2009-02-13
Filing date: 2009-02-13
Publication date: 2009-12-16
Anticipated expiration: 2019-02-13

Abstract

A light emitting diode lamp comprises a base, a tube body, a cover body, a plurality of light emitting diodes and a fan, wherein the tube body is assembled on the base and provided with a plurality of first openings, a portion of the tube body is located in the cover body, the cover body is provided with a plurality of second openings, the light emitting diodes are assembled on the outer lateral wall of the tube body, and the fan is connected with the tube body. The light emitting diode lamp can enable air inside the tube body and the cover body to have a convection effect, thereby rapidly dissipating heat sources generated by the light emitting diodes and greatly improving radiating effect.

Description

LED light lamp

Technical field

The utility model relates to a kind of LED light lamp, and particularly relevant for a kind of LED light lamp of tool high cooling efficiency.

Background technology

Light emitting diode is a kind of high efficiency light-emitting assembly that converts electrical energy into luminous energy, and has that driving voltage is low, reaction speed is fast, vibration strength is good and advantage such as long service life.But to so far, majority still are accustomed to continuing to use traditional incandescent lamp, yet, incandescent lamp have service life short, the luminous efficiency difference is low and shortcoming such as not environmental protection, therefore prior art have proposition with light emitting diode as light source, be designed to the LED light lamp of conventional lamp pattern.

Fig. 1 is the side cutaway view of a kind of LED light lamp in the prior art.Please refer to Fig. 1, this LED light lamp 100 comprises pedestal 110, heating column 120, cover body 130 and a plurality of light emitting diode 140.These light emitting diodes 140 are to be configured on the heating column 120 and in order to producing light source, and an end of heating column 120 is to be fixed on the pedestal 110, conducts to the external world with the thermal source that light emitting diode 140 is produced.In addition, cover body 130 is to engage with pedestal 110, so that heating column 120 all is arranged in cover body 130 with light emitting diode 140.

Yet when heating column 120 can't be discharged the thermal source that light emitting diode 140 produced in real time, light emitting diode 140 just can be because of overheated and significantly reduce luminous efficiency.Although prior art has the mode that proposes to set up fan 150 to increase radiating efficiency, this configuration mode can't reach cross-ventilated effect, and radiating effect is had a greatly reduced quality.

In addition, heating column 120 generally is to be made of solid copper metal, and its cost is comparatively expensive, the related price competitiveness that reduces LED light lamp 100.

The utility model content

In view of this, the utility model provides a kind of LED light lamp, and it has preferable radiating effect, and has cheaper cost of manufacture simultaneously.

For reaching above-mentioned or other purpose, this creation proposes a kind of LED light lamp, comprises pedestal, body, cover body, a plurality of light emitting diode and fan.Body is to be disposed on the pedestal, and has a plurality of first perforates, and body is partly to be arranged in cover body, and cover body has a plurality of second perforates.These light emitting diodes are to be disposed on the lateral wall of body, and fan is to connect body.

In one embodiment, above-mentioned fan is configurable in body.Perhaps, fan is also configurable on an end of the relative pedestal of body.

In one embodiment, above-mentioned cover body can connect pedestal, and body is all to be arranged in cover body.

In one embodiment, above-mentioned cover body can connect this body, and body is that part is arranged in cover body.

In one embodiment, above-mentioned LED light lamp more can comprise fin, and fin is to connect pedestal.In addition, fin for example is a radiating fin increasing area of dissipation, and its material for example be that aluminium alloy is with the increase heat conduction efficiency.In addition, cover body for example is to connect body.

In sum, in this LED light lamp, by offering first perforate and second perforate, and cooperate fan to rotate, can make the gas generation convection effects in body and the cover body, use the thermal source of taking away light emitting diode rapidly and being produced, significantly promote radiating effect.

For the above-mentioned of this creation and other purpose, feature and advantage can be become apparent, embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.

Description of drawings

Fig. 1 is the side cutaway view of a kind of LED light lamp in the prior art.

Fig. 2 A～2C is the side cutaway view of the LED light lamp of a plurality of embodiment of the utility model.

Fig. 3 A is the side cutaway view of the LED light lamp of another embodiment of the utility model.

Fig. 3 B is the side cutaway view of the LED light lamp of Fig. 3 A.

Fig. 3 C is the side cutaway view of the LED light lamp of another embodiment.

The specific embodiment

Fig. 2 A is the side cutaway view of the LED light lamp of the utility model one embodiment.Please refer to Fig. 2, this LED light lamp 200a comprises pedestal 210, body 220, cover body 230, a plurality of light emitting diode 240 and fan 250.Body 220 is to be formulated on the pedestal 210, and offers a plurality of first perforates 222 on the body 220, and these light emitting diodes 240 are to be disposed on the lateral wall of body 220 to be used for luminous lighting.Partly body 220 is to be arranged in cover body 230, and also offers a plurality of second perforates 232 on the cover body 230, and wherein first perforate 222 and second perforate 232 are suitable for allowing air circulate between body 220, cover body 230 and the external world.In addition, fan 250 is to connect body 220, to drive that air flows and the thermal source band that rapidly light emitting diode 240 produced from.

Specifically, when fan 250 started, outside air can enter the cover body 230 from the second perforate 232a and (generally show air glide path with the dotted arrow symbol among the figure), enters the body 220 from first perforate 222 again.Because the thermal source that light emitting diode 240 is produced can conduct to rapidly on the body 220, and by mobile the contacting of air with body 220 sidewalls, air just can be taken away the thermal source on the body 220.Then, the air after being heated can be extracted out outside body 220 by fan 250, and flows in cover body 230 and leave cover body 230 and be disposed to the external world from the second perforate 232b, reaches the air circulation convection current by this, significantly to promote the radiating effect of light emitting diode 240.

In the present embodiment, fan 250 for example is an end that is fixed in body 220, and relative with pedestal 210, but does not limit the equipping position of fan 250.For example, fan 250 is also configurable in body 220, and shown in the LED light lamp 200b of Fig. 2 B.In addition, also not limiting fan 250 is just to change air draught or reversing air draft, and when also even fan 250 was for reverse, then the flow path of air was the reverse in above stated specification path.

Please with reference to figure 2A, the material of cover body 230 can be transparent glass or other suitable transparent material, and cover body 230 for example is to engage assembling with pedestal 210, so that all body 220 all is arranged in cover body 230.In other embodiments, cover body 230 also can snap on the body 220, to expose partly body 220 shown in the LED light lamp 200c of Fig. 2 C.

Accept above-mentioned and in the embodiment of LED light lamp 200c, the first perforate 222a also can be positioned at cover body 230 outsides, thus, fan 250 just can be with outside air directly via taking away thermal source in the first perforate 222a suction body 220, with further lifting radiating effect.

Refer again to Fig. 2 A, the material of body 220 can be the material of aluminium alloy, ceramic material or the high thermal conduction characteristic of other tool.In addition, because body 220 is a hollow-core construction, therefore compared to solid heating column 120 (as shown in Figure 1), the manufacturing cost of body 220 is comparatively cheap, and makes LED light lamp 200a have lower cost of manufacture.

In addition, for increasing the contact area of body 220 and air, with further lifting radiating effect, this LED light lamp more can be set up a plurality of fins (not illustrating) again or delineate a plurality of air flue dimpled grains on the interior lateral wall of body 220.Be familiar with the pattern that this operator can revise body 220 again according to above stated specification.

It should be noted that, although first perforate 222 is to be opened near first position of body 220, and second perforate 232 is to be opened near first and the centre position of cover body 230, cause the effect of air circulation convection current with collocation fan 250, but the utility model does not limit the position of offering of these perforates.For instance, some second perforate also can be opened in cover body 230 under position and relative with fan 250, thus, the hot gas that fan 250 is extracted out in the body 220 just can directly be disposed to the external world by these second perforates downwards.

In the present embodiment, the specification of pedestal 210 for example is the E26/E27 specification, to be compatible with the current incandescent lamp socket that generally uses.In addition, many leads (not illustrating) are that pedestal 210 is electrically connected to light emitting diode 240 and fan 250, so that the extraneous power supply that pedestal 210 is received can be supplied with light emitting diode 240 and fan 250 starts.

Fig. 3 A is the side view according to the LED light lamp of another embodiment, and Fig. 3 B is the side cutaway view of the LED light lamp of Fig. 3 A.Please refer to Fig. 3 A～3B, the LED light lamp 300 of present embodiment is similar to aforesaid LED light lamp 200a (shown in Fig. 2 A), and main difference is that LED light lamp 300 more comprises the radiating effect of fin 360 with further lifting light emitting diode 240, wherein fin 360 is to be sticked on the pedestal 210, so that the thermal source that light emitting diode 240 is produced can conduct to fin 360 via body 220 and pedestal 210 rapidly.Because fin 360 has bigger surface area, thus can be rapidly with thermal source through the air band to reach the effect of quick heat radiating.

Similar aforementioned, fin 360 can be radiating fin or delineates the air channel dimpled grain to increase the surface area of fin 360 ingresss of air on fin 360.In addition, the material of fin 360 for example is the favourable heat radiation of material of aluminium alloy or the high thermal conduction characteristic of other tool.In addition, (Micro Arc Oxidation, special surface MAO) handle and form insulation, get an electric shock to avoid user's false touch fin 360 in the surperficial available differential arc oxidation anode processing of fin 360.

Refer again to Fig. 3 A～3B, the utility model more can form reflecting layer (not illustrating) again on the inner surface of fin 360.Thus, 240 generation levels of light emitting diode or the light that makes progress just can be reflected layer reflection downwards, to reach the service efficiency of concentrating light source effect and promoting light source.Subsidiary one carry be, the utility model does not limit the shape of fin 360, for example, the shape of fin 360 can be parabolic shape, ellipse is planar or other is suitable shape in order to the concentrated reflection source in reflecting layer.

Moreover although the cover body of present embodiment 230 is to connect fin 360, in other embodiments, cover body 230 also can connect body 220 and shown in the LED light lamp 300a of Fig. 3 C.Also can make up cover body 230 in addition arbitrarily on pedestal 210, body 220 or fin 360.

In sum, this LED light lamp has following advantages at least:

One, by offering first perforate and second perforate, can make air produce convection effects, to take away rapidly The thermal source that light emitting diode produces, significantly improving radiating effect.

Two, body is that hollow-core construction has lower cost of manufacture.

Three, by setting up fin and reflecting layer, further the use of improving radiating effect and light source is imitated Rate.

Claims

1. LED light lamp is characterized in that comprising:

Pedestal;

Body be disposed on this pedestal, and this body has a plurality of first perforates;

Cover body, and this body is partly to be arranged in this cover body, and this cover body has a plurality of second perforates;

A plurality of light emitting diodes are disposed on the lateral wall of this body; And

Fan connects this body.

2. LED light lamp as claimed in claim 1 is characterized in that this fan arrangement is in this body; Perhaps this fan arrangement is on an end of relative this pedestal of this body.

3. as claim 1 a described LED light lamp, it is characterized in that this cover body connects this pedestal.

4. LED light lamp as claimed in claim 3 is characterized in that this body is all to be arranged in this cover body.

5. LED light lamp as claimed in claim 1 it is characterized in that this cover body is to connect this body, and this body is that part is arranged in this cover body.

6. LED light lamp as claimed in claim 1 it is characterized in that this light-emitting diode spot more comprises a fin, and this fin connects this pedestal.

7. LED light lamp as claimed in claim 6 is characterized in that this fin is a radiating fin.

8. LED light lamp as claimed in claim 6 is characterized in that this cover body connects this fin.

9. LED light lamp as claimed in claim 6 is characterized in that this cover body connects this body.

10. LED light lamp as claimed in claim 6 is characterized in that more comprising a reflecting layer, is disposed on the surface of relative this light emitting diode of this fin.