CN201373284Y - High-voltage high-power LED bulb - Google Patents
High-voltage high-power LED bulb Download PDFInfo
- Publication number
- CN201373284Y CN201373284Y CN200920136648U CN200920136648U CN201373284Y CN 201373284 Y CN201373284 Y CN 201373284Y CN 200920136648 U CN200920136648 U CN 200920136648U CN 200920136648 U CN200920136648 U CN 200920136648U CN 201373284 Y CN201373284 Y CN 201373284Y
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- drive circuit
- power led
- circuit board
- fin
- bulb
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Abstract
The utility model discloses a high-voltage high-power LED bulb, which comprises a lamp cap, a high-power LED, a circuit board, a radiating fin and a driving circuit. The lamp cap is electrically connected with the circuit board via the driving circuit, and the high-power LED is welded on the circuit board. The high-voltage high-power LED bulb is characterized in that the driving circuit and the circuit board are respectively arranged on the outsides of two ends of the radiating fin. The high-voltage high-power LED bulb with the structure can effectively prolong service life.
Description
Technical field
The utility model relates to illumination component, particularly a kind of high-power LED bulb that connects the 220V AC power, replaces conventional incandescent.
Background technology
At present, along with LED (light emitting diode) technology rapid development, the use of LED product is more and more general, and numerous advantages such as the LED bulb is simple in structure with it, luminous power is low, the response time is short, long service life have the trend that replaces the conventional incandescent bulb greatly; Increasingly mature along with the LED technology, the structure of LED bulb is also various all the more, below will enumerate several examples and describe.
As shown in Figure 1, it is Chinese patent application numbers 200720055185.1, name is called a specific implementation structure of " a kind of high-voltage LED bulb ", mainly comprise bulb shell 10, be connected the lamp holder 20 on the bulb shell 10, and the circuit board 30 that is positioned at lamp holder 20, circuit board 30 is provided with electronic component 301 and LED 302, and circuit board 30 is electrically connected by lead 40 with lamp holder 20, the improvement of this structure is the insulating sleeve 50 that circuit board 30 is provided with coating circuit plate 30 and circuit board 30 and lamp holder 20 are kept apart, the electronic component 301 that is positioned on the circuit board 30 also is covered by insulating sleeve 50. and this kind structure is by installing an insulating sleeve 50 additional at bulb, when bulb shell 10 installs, circuit board 30 is fixed in the lamp holder 20, significantly reduce circuit board 30 and lamp holder 20 contacted probabilities, increase the security of bulb.
Yet the shortcoming of said structure is: well-known, LED 302 and electronic component 301 all can produce heat when work, and be covered by in the insulating sleeve 50, be unfavorable for its heat radiation, make that the temperature in the insulating sleeve 50 is higher, very easily influence the service life of LED 302 and electronic component 301.
Shown in Figure 2 is the structure of second kind of LED bulb, particular content can be with reference to Chinese patent application numbers 200720055473.7, name is called the patent application case of " a kind of high-power LED bulb ", its structure mainly comprise lampshade 1 ', lamp holder 6 ', lamp socket 3 ', be built in great power LED 7 in lamp socket and the lampshade ' be connected lamp holder 6 ' with lamp socket 3 ' connector 5 ', circuit board 2 ', drive circuit 4 ', great power LED 7 ' be welded on circuit board 2 ' on, again with circuit board 2 ' by screw and heat-conducting silicone grease and lamp socket 3 ' be connected, and lamp socket 3 ' employing aluminium alloy is made, and adopts straight striated structure down on the surface.Then in when work, the heat of great power LED 7 ' generations by circuit board 2 ' pass to rapidly lamp socket 3 ', utilize lamp socket 3 ' bigger surface area to dispel the heat, the reliability of assurance light fixture.Because aluminum material has the capacity of heat transmission preferably, and the straight striated structure down of appearance increase greatly lamp socket 3 ' area of dissipation, therefore the heat of great power LED 7 ' generations can be dispersed into well in the external environment condition service life of prolongation light fixture.
Yet the shortcoming of this class formation is: the great power LED 7 ' time can produce a large amount of heats in work, these transfer of heat to aluminium matter lamp socket 3 ' on, cause lamp socket 3 ' temperature very high, not tangible; In addition, lamp socket 3 ' exposed the people can directly touch and obtain, in case leak electricity, the people is had fatal harm outside, and job security is relatively poor.
Again as shown in Figure 3, it is the structure of another LED bulb, particular content is seen Chinese patent application numbers 200620131280.0, name is called the patent application case of " LED bulb ", its structure comprises that a lamp holder 60, a radiator 70, one drive circuit 80, are equiped with the circuit board 90 and a skirt cover 601 of LED lamp group 901, wherein, radiator 70 is one to be provided with the hollow metallic conduit of a plurality of radiating fins 701, and the outside of radiating fin 701 is hidden by skirt cover 601 and encloses; Drive circuit 80 is arranged in the hollow metallic conduit of radiator 70, and is connected with lamp holder 60 and circuit board 90 respectively at the two ends of hollow metallic conduit, throws light on after making LED lamp group 901 obtain power supply by drive circuit 80.This kind structure in use, the high temperature that LED lamp group 901 is produced can reach the purpose of heat radiation by the radiator 70 that is coated with highly heat-conductive material with heat conduction and heat radiation mode, also between skirt cover 601 and radiating fin 701, form a heat dissipation channel for circulation of air, reduce the high temperature on radiating fin 701 surfaces.
Said structure also has its defective to exist: although the outside of drive circuit 80 is provided with radiator 70, yet on radiator 70, shift the heat that next heat produces more than drive circuit 80 far away by circuit board 90, thereby, 70 pairs of drive circuits 80 of radiator do not have thermolysis, be to have stoped its heat to be distributed on the contrary, influence the use of drive circuit 80, thereby shorten the service life of LED lamp group 901; Thereby this kind structure does not have to solve well the heat dissipation problem of LED bulb yet.
In sum, for great power LED, its caloric value when work is bigger, and present structure all is that drive circuit and circuit board and great power LED are set together, the heat that great power LED produces produces considerable influence to drive circuit, the drive circuit long-term work is under this hot environment, can reduce service life, and then influence service life of LED, thereby solution heat dissipation problem, it is the problem that must solve in the LED use, yet also do not have a kind of structure can effectively solve the influence of distribute heat to LED and drive circuit at present, in view of this, the inventor is by the experience of being engaged in the LED bulb for many years, heat dissipation problem to the LED bulb is furtherd investigate, and this case produces thus.
The utility model content
Main purpose of the present utility model is to provide a kind of high-power LED bulb of high pressure, and it can effectively prolong the service life of LED bulb.
Secondary objective of the present utility model is to provide a kind of high-power LED bulb of high pressure, the partiting thermal insulation that it is good in the time of can realizing work, security performance height.
A purpose more of the present utility model is to provide a kind of high-power LED bulb of high pressure, and its lighting effect is good.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of high-power LED bulb of high pressure comprises lamp holder, great power LED, circuit board, fin and drive circuit, and lamp holder is electrically connected with circuit board via drive circuit; Great power LED is welded on the circuit board; Drive circuit and circuit board are separately positioned on the outside, two ends of fin.
Above-mentioned drive circuit is positioned at an insulated shell, and drive circuit coats insulated shell and drive circuit and circuit board, fin are kept apart.
Above-mentioned insulated shell is a U type structure.
But above-mentioned drive circuit and fin outer cover are equipped with the bulb shell of partiting thermal insulation, have some slits on the bulb shell, and form a plurality of apertures at the connecting portion with drive circuit.
Above-mentioned fin is made up of the straight sheet of a plurality of aluminium.
Above-mentioned great power LED is covered with a globe holder, and the inner surface of this globe holder has a plurality of sphere particles.
After adopting such scheme, the utlity model has following advantage:
(1) drive circuit and circuit board are separately positioned on the two ends of fin, increase the distance between drive circuit and the circuit board, the heat of heat radiation is to the influence of drive circuit when effectively reducing the great power LED work on the circuit board, and the temperature when keeping drive circuit works is unlikely too high;
(2) use has the insulated shell of good heat-blocking action, drive circuit and circuit board, fin are kept apart, can prevent effectively that the heat on the fin is transmitted to drive circuit, thereby improve the service life of drive circuit, and then prolong the service life of great power LED;
(3) insulated shell is designed to the U type structure that the upper end is opened wide, and drive circuit has good the contact with the external world, the heat that distributes in the time of can effectively volatilizing work, the service life of protection drive circuit;
(4) be nested with bulb shell in the outside of drive circuit and fin, bulb shell is provided with many slits, and inner fin can conduct heat to the external world by the slit, and radiating effect is good; On the other hand, bulb shell adopts the heat insulation material of insulation to make, so the temperature of bulb shell outer surface can not be subjected to the influence of inner fin and drive circuit, even hand also can directly touch when work, even there is the electric leakage situation to take place, can not work the mischief to human body yet, security is higher; Moreover the connecting portion of bulb shell and drive circuit is formed with a plurality of apertures, realizes the thermal convection current between drive circuit and the outside air, is convenient to drive circuit and dispels the heat, the service life of protection drive circuit;
(5) fin adopts the high aluminum material of thermal conductivity factor, the heat that great power LED produces can be distributed rapidly, has better heat radiating effect;
(6) outside of great power LED is covered with globe holder, and forms some sphere particles at the inner surface of lampshade, can the light that great power LED sends repeatedly be reflected, and make light soft, and range of exposures is big, and lighting effect is good.
Description of drawings
Fig. 1 is a kind of generalized section of existing LED lamp;
Fig. 2 is the perspective exploded view of another kind of existing LED lamp;
Fig. 3 is the perspective exploded view of another existing LED lamp;
Fig. 4 is a front view of the present utility model;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 is a vertical view of the present utility model.
The specific embodiment
Below in conjunction with drawings and the specific embodiments the utility model is elaborated.
As shown in Figure 4 and Figure 5, the high-power LED bulb of a kind of high pressure of the utility model comprises lamp holder 1, great power LED 8, circuit board 7, fin 5 and drive circuit 3.
Circuit board 7 is electrically connected with drive circuit 3, also is welded with great power LED 8 on circuit board 7, fixedly installs with circuit board 7, and electrically connects by circuit board 7 and drive circuit 3, carries out illumination work.
Circuit board 7 and drive circuit 3 are separately positioned on the two ends of fin 5, by fin 5, draw back the distance between circuit board 7 and the drive circuit 3, specifically can be with reference to shown in Figure 5, circuit board 7 is positioned at the bottom of fin 5, and is connected with fin 5 by screw 9 and heat-conducting silicone grease, and is between fin 5 and the great power LED 8, the heat that is produced in the time of can be with great power LED 8 work is delivered to fin 5 rapidly by pin, prevents that temperature is too high and influences service life.In order to improve radiating effect, fin 5 is made up of the straight sheet of the stronger aluminium of a plurality of capacity of heat transmission herein.
3 of drive circuits are positioned at the top, top of fin 5, in the present embodiment, in order to reach good partiting thermal insulation effect, also be coated with insulated shell 4 at drive circuit 3, this insulated shell 4 is made by heat-insulating material, and be positioned at above the top of fin 5, thereby drive circuit 3 and fin 5, circuit board 7 to be kept apart, the heat that makes circuit board 7 and fin 5 distribute can not exert an influence to drive circuit 3; For the ease of the heat radiation of internal drive circuits 3, insulated shell 4 is designed to U type structure, and the upper end is uncovered, can carry out heat conduction fully with the external world.
The utility model in use, the heat that great power LED 8 is produced is delivered to circuit board 7 by the LED pin, conducts to fin 5 by circuit board 7 again, is dispersed into external environment by fin 5; The heat that the components and parts of drive circuit 3 produce is the uncovered external world that is dispersed into by insulated shell 4 tops then; Because the obstruct of insulated shell 4; heat on the fin 5 can not impact drive circuit 3; simultaneously; fin 5 is arranged between circuit board 7 and the drive circuit 3; widen the distance of circuit board 7 and drive circuit 3; prevent of the influence of the high temperature of great power LED 8 generations on the circuit board 7, effectively protect drive circuit 3 drive circuit 3.
In order to improve security of the present utility model, present embodiment also is nested with a bulb shell 2 in the outside of insulated shell 4 and fin 5, and fin 5 is connected with bulb shell 2 by screw 6 in the side, can be with reference to figure 4 and shown in Figure 5, but this bulb shell 2 is made by the material of partiting thermal insulation, when then user's hand contacts bulb, can directly not touch the fin 5 of high temperature, in the time of also needn't worrying to leak electricity to the injury of human body; Simultaneously, on bulb shell 2, have some slits 21, keep the thermal convection current of fin 5 and outside air, be beneficial to distributing of heat; Moreover bulb shell 2 also is formed with some elongated apertures 22 with the connecting portion of insulated shell 4, as shown in Figure 6, like this, makes also have thermal convection current between drive circuit 3 and the outside air, helps to distribute the heat that drive circuit 3 is produced.
In order further to improve illuminating effect, present embodiment also is covered with a globe holder 10 at great power LED 8, and the inner surface of this globe holder 10 also is formed with several sphere particles, and the light that great power LED 8 sends is after the sphere particle repeatedly reflects, increase range of exposures, light is soft.
In sum; the high-power LED bulb of a kind of high pressure of the utility model; focus on drive circuit 3 and circuit board 7 are separately positioned on the two ends of fin 5; by fin 5 drive circuit 3 and circuit board 7 are separated fully; heat on fin 5 and the circuit board 7 can not be transmitted to drive circuit 3; thereby effectively protect the use of drive circuit 3, and then prolong the service life of great power LED 8.
The high-power LED bulb of a kind of high pressure of the utility model, but another focuses on the bulb shell 2 that drive circuit 3 and fin 5 outer cover are equipped with partiting thermal insulation, have some slits 21 on the bulb shell 2, the thermal convection current that keeps fin 5 and outside air, be beneficial to distributing of heat, and form a plurality of apertures 22 at connecting portion, make also have thermal convection current between drive circuit 3 and the outside air, help to distribute the heat that drive circuit 3 is produced with drive circuit 3.
Above embodiment only is explanation technological thought of the present utility model; can not limit protection domain of the present utility model with this; every according to the technological thought that the utility model proposes, any change of being done on the technical scheme basis all falls within the utility model protection domain.
Claims (6)
1, a kind of high-power LED bulb of high pressure comprises lamp holder, great power LED, circuit board, fin and drive circuit, and lamp holder is electrically connected with circuit board via drive circuit; Great power LED is welded on the circuit board; It is characterized in that: drive circuit and circuit board are separately positioned on the outside, two ends of fin.
2, the high-power LED bulb of a kind of high pressure as claimed in claim 1 is characterized in that: described drive circuit is positioned at an insulated shell, and drive circuit coats insulated shell and drive circuit and circuit board, fin are kept apart.
3, the high-power LED bulb of a kind of high pressure as claimed in claim 2 is characterized in that: described insulated shell is a U type structure.
4, the high-power LED bulb of a kind of high pressure as claimed in claim 1, it is characterized in that: but described drive circuit and fin outer cover are equipped with the bulb shell of partiting thermal insulation, have some slits on the bulb shell, and form a plurality of apertures at connecting portion with drive circuit.
5, the high-power LED bulb of a kind of high pressure as claimed in claim 1 is characterized in that: described fin is made up of the straight sheet of a plurality of aluminium.
6, the high-power LED bulb of a kind of high pressure as claimed in claim 1 is characterized in that: described great power LED is covered with a globe holder, and the inner surface of this globe holder has a plurality of sphere particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920136648U CN201373284Y (en) | 2009-02-06 | 2009-02-06 | High-voltage high-power LED bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920136648U CN201373284Y (en) | 2009-02-06 | 2009-02-06 | High-voltage high-power LED bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373284Y true CN201373284Y (en) | 2009-12-30 |
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ID=41499368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920136648U Expired - Fee Related CN201373284Y (en) | 2009-02-06 | 2009-02-06 | High-voltage high-power LED bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373284Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013053081A1 (en) * | 2011-10-13 | 2013-04-18 | Chen I-Ming | Heat dissipating structure for bulb |
| CN103322439A (en) * | 2012-03-23 | 2013-09-25 | 海洋王照明科技股份有限公司 | Led lamp |
-
2009
- 2009-02-06 CN CN200920136648U patent/CN201373284Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013053081A1 (en) * | 2011-10-13 | 2013-04-18 | Chen I-Ming | Heat dissipating structure for bulb |
| CN103322439A (en) * | 2012-03-23 | 2013-09-25 | 海洋王照明科技股份有限公司 | Led lamp |
| CN103322439B (en) * | 2012-03-23 | 2016-04-13 | 海洋王照明科技股份有限公司 | Led lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20130206 |