CN204284998U - A kind of LED lamp - Google Patents
A kind of LED lamp Download PDFInfo
- Publication number
- CN204284998U CN204284998U CN201420679447.1U CN201420679447U CN204284998U CN 204284998 U CN204284998 U CN 204284998U CN 201420679447 U CN201420679447 U CN 201420679447U CN 204284998 U CN204284998 U CN 204284998U
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- Prior art keywords
- led lamp
- radiation shell
- luminescence component
- connecting plate
- shell
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The LED lamp that the utility model provides, comprise radiation shell and be located at luminescence component and the lamp holder of radiation shell both sides, described luminescence component includes multiple LED lamp bead; Described radiation shell comprises distribution path that its cross section is luminescence component described in matching and to sending out in contrast to described luminescence component the frame wall closing side and extend; Described LED lamp comprises a plate and an insulating boot further, and described connecting plate is connected with radiation shell in the mode of thermo-contact, and fixes luminescence component with its side end face away from described radiation shell; Described insulating boot comprises the perisporium of circular shell structure, and radiation shell is fixed in one end of described perisporium, and the other end is connected with lamp holder.The utility model dispels the heat rapidly by radiation shell, has excellent heat dispersion and radiating efficiency, can be applicable to high-power LED lamp.Meanwhile, owing to eliminating traditional fin slices radiator, reduce weight and the manufacturing cost of LED lamp, simplify assembly technology and maintain overall aesthetic property.
Description
Technical field
The utility model relates to a kind of lighting apparatus, particularly relates to a kind of LED lamp.
Background technology
Along with the progressively raising of great power LED light efficiency, LED lamp is widely used in lighting field, wherein adopts LED to have the technical characteristics such as energy-conservation, long-life as the light fixture of light source.But LED is the same with traditional light source, it also can produce heat during operation, and the number producing heat depends on the luminous efficiency of LED entirety.Specifically, LED element working life and operating temperature are inversely proportional to, and thus good heat radiation is the important step of LED lamp design.Current existing LED lamp all adopts centralized for LED lamp bead fixing layout structure, then by means of the LED fin slices radiator being specifically designed to heat radiation LED heat taken away and by fin to air exchange heat to reach the object of heat radiation.
The problem of such design is: because LED lamp bead concentrates to be fixed on a relatively little area thick and fast, a large amount of heats due to synergistic effect raised temperature while too increase the difficulty of outside transferring heat, the not smooth bottleneck of heat dissipation channel is caused especially when high-power applications, simultaneously, owing to have employed, volume is large, the fin slices radiator of Heavy Weight also improves light fixture cost, in addition, in order to coordinate the installation of fin slices radiator, overall its aesthetic appearance also needs to design complicated structure and fin slices radiator is fixed and wraps up by shell.
Utility model content
In view of this, the utility model provides a kind of LED lamp that can solve the problem.
For solving the problem, the utility model provides a kind of LED lamp, and comprise radiation shell and be located at luminescence component and the lamp holder of radiation shell both sides, described luminescence component includes multiple LED lamp bead; Described radiation shell comprises distribution path that its cross section is luminescence component described in matching and to sending out in contrast to described luminescence component the frame wall closing side and extend; Described LED lamp comprises a plate and an insulating boot further, and described connecting plate is connected with radiation shell in the mode of thermo-contact, and fixes luminescence component with its side end face away from described radiation shell; Described insulating boot comprises the perisporium of circular shell structure, and radiation shell is fixed in one end of described perisporium, and the other end is connected with lamp holder.
Preferably, the cross section of described radiation shell is quadrangle.
Preferably, the diameter of described perisporium reduces gradually from the side away from described radiation shell.
Preferably, described luminescence component also comprises the circuit board be arranged between described LED lamp bead and described connecting plate, is interconnected between described circuit board and described connecting plate by thermal interfacial material.
Preferably, described circuit board is pcb board.
Preferably, described LED lamp comprises lampshade further, and described lampshade is fixed on connecting plate, and surrounds one for the accommodating cavity of accommodating described luminescence component.
A kind of LED lamp, comprise radiation shell and be located at luminescence component and the lamp holder of radiation shell both sides, described luminescence component includes multiple LED lamp bead; Described LED lamp bead is with one end of the cross sectional shape of frame wall described in matching described frame wall for path profile is arranged at; Described LED lamp comprises a plate and an insulating boot further, and described connecting plate is connected with radiation shell in the mode of thermo-contact, and fixes luminescence component with its side end face away from described radiation shell; Described insulating boot comprises the perisporium of circular shell structure, and radiation shell is fixed in one end of described perisporium, and the other end is connected with lamp holder.
Preferably, the cross section of described radiation shell is quadrangle.
Preferably, described luminescence component also comprises the pcb board be arranged between described LED lamp bead and described connecting plate, is interconnected between described pcb board and described connecting plate by thermal interfacial material.
Preferably, described LED lamp comprises lampshade further, and described lampshade is fixed on connecting plate, and surrounds one for the accommodating cavity of accommodating described luminescence component.
The utility model has following beneficial effect:
Above-mentioned LED lamp, by rational structural design and source layout, the heat produced when luminescence component is worked, by the conduction of connecting plate, carries out quick heat radiating via radiation shell, thus make LED lamp have excellent heat dispersion and radiating efficiency, can high-power LED lamp be applicable to.Meanwhile, owing to eliminating traditional fin slices radiator, reduce weight and the manufacturing cost of LED lamp, simplify assembly technology, and maintain the overall aesthetics of this LED lamp.
Accompanying drawing explanation
Fig. 1 is the structural representation of LED lamp in the utility model preferred embodiment.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.
Refer to Fig. 1, preferred embodiment of the present utility model provides a kind of LED lamp 100, comprises radiation shell 10 and is located at luminescence component 20 and the lamp holder 30 of radiation shell 10 both sides.Wherein, described LED luminescence component 20 comprises in necessarily regularly arranged multiple LED lamp bead (light emitting diode) 21.
Described radiation shell 10 comprises distribution path that its cross section is luminescence component described in matching 20 and to sending out in contrast to described luminescence component 20 the frame wall 11 closing side and extend, described radiation shell 10 is connected in the mode of thermo-contact with described luminescence component 20.Be appreciated that, if the Design and manufacture of frame wall 11 is formerly, be improve the radiating effect of LED lamp 100, LED lamp bead 21 the structure of corresponding frame wall 11 can carry out layout, that is, LED lamp bead 21 with the cross sectional shape of matching frame wall 11 for path profile is arranged at one end of frame wall 11; In addition, if the heat distribution path of known LED lamp bead 21, the structure of frame wall 11 then can design according to the heat distribution path of LED lamp bead 21, that is, frame wall 11 can matching LED lamp bead 21 heat distribution path and extend to form to the emission side in contrast to LED lamp bead 21.Be appreciated that the surfaces externally and internally of described radiation shell 10 is smooth surface.
In order to luminescence component 20 is fixed on radiation shell 10, the present embodiment comprises connecting plate 40 further.Described connecting plate 40 is connected with radiation shell 10 in the mode of thermo-contact, and wherein connecting plate 40 fixes luminescence component 20 at its end face away from the side of described radiation shell 10.Because the heat produced when luminescence component in the present embodiment 20 works is by the conduction of connecting plate 40, come to dispel the heat rapidly via radiation shell 10.Described in this sample embodiment, between connecting plate 40 and radiation shell 10, thermo-contact mode is preferably the mode of interference fit or soldering, make the contact area between connecting plate 40 and radiation shell 10 large, to improve the conduction of connecting plate 40 pairs of heats further, be convenient to the heat radiation of radiation shell 10 pairs of luminescence components 20.
Described luminescence component 20 also comprises a circuit board 22, and described LED lamp bead 22 is fixed on circuit board 22, and wherein circuit board 22 described in the present embodiment is preferably pcb board.Particularly, be interconnected by thermal interfacial material between radiation shell 10 and circuit board 21 assembly.Further, thermal interfacial material (not shown) is provided with between circuit board 22 and radiation shell 10, to fill up the hole of microvoid and the surface irregularity produced when circuit board 22 engages with connecting plate 40 or contacts, reduce heat transfer contact thermal resistance, improve the heat conduction performance between circuit board 22 and connecting plate 40, so that the heat distributed by luminescence component 20 conducts fast to radiation shell 10.The present embodiment is in the concrete process used, and circuit board 22 can adopt this thermal interfacial material of heat-conducting glue to be bonded on connecting plate 40.
Above-mentioned matching refer to certain function known some discrete function values f1, f2 ... fn}, by adjusting (the λ 1, λ 2 of some undetermined coefficient f in this function,, λ n), make the difference of this function and known point set (least square meaning) minimum.In the present embodiment, described discrete function value { f1, f2,, fn} is the position data of described LED lamp bead 21 on circuit board 22, and by specific function and undetermined coefficient f (λ 1, λ 2,, λ n) calculate the shape in the cross section of frame wall 11, the cross sectional shape of the frame wall 11 finally calculated close to or be same as the spread geometry of LED lamp bead 21.The spread geometry of LED lamp bead 21 can be circle, ellipse, quadrangle, pentagon or hexagon one of them, accordingly, the cross sectional shape of frame wall 11 also can be circle, ellipse, quadrangle, pentagon or hexagon one of them.In the present embodiment, the cross section of described radiation shell 10 is quadrangle, and namely the cross sectional shape of frame wall 11 is quadrangle.
Described lamp holder 30 is thread-like structure, and it is fixed on radiation shell 10 by insulating boot 50.Particularly, described insulating boot 50 comprises the perisporium 51 of circular shell structure, and radiation shell 10 is fixed in one end of described perisporium 51, and the other end is connected with lamp holder 30.In the present embodiment, preferably, the diameter of described perisporium 51 reduces gradually from the side away from described radiation shell 10.
LED lamp 100 described in the present embodiment also comprises a lampshade 60, and described lampshade 60 is fixed on connecting plate 40, and surrounds one for the accommodating cavity of accommodating described luminescence component 20.This LED lamp 100 in use like this; it is provided with lampshade 60 and defines the protecting sheathing that a pair luminescence component 20 play a protective role; in case LED lamp bead 21 is damaged because receiving other effects such as extraneous pressure in luminescence component 20, this meets the custom that people use LED lamp.
In the present embodiment, LED lamp 100 operationally, and the heat that its luminescence component 20 produces conducts to connecting plate 40 by thermal interfacial material, and reach whole radiation shell 10 via the conduction of connecting plate 40 and carry out spreading, dispelling the heat.Outwardly dispelled the heat by radiation mode and convection type in the surface of radiation shell 10.Wherein determine entire thermal resistance that the heat dissipation path of LED lamp 100 radiating efficiency in the present embodiment exists equal heat dissipation path links thermal resistance and.After LED lamp energising work enough time, under certain environment temperature and air velocities, LED lamp entirety can reach a thermal balance, the junction temperature liter of the LED lamp of the temperature difference Δ t meaning now between the temperature of the luminescence component 20 of LED lamp and air, wherein LED lamp junction temperature rises lower, means that the life expectancy of LED is longer.
The factor risen with regard to affecting LED lamp junction temperature below does following analysis:
Be heat loss through conduction by the luminescence component 20 of the known LED lamp of the above analysis to heat dissipation path to heat-delivery surface, dispel the heat by having radiation and these two kinds of modes of convection current LED lamp each heat-delivery surface to external environment, because different radiating modes relates to different influence factors and computational methods, discuss respectively below:
1, luminescence component 20 to each heat-delivery surface of this LED lamp be to heat loss through conduction process in, affect the thermal conductivity factor, the sectional area of heat carrier, the length of heat-transfer path etc. four because have various heat sink material in the dissipated power of LED, heat dissipation path that junction temperature rises Δ t.So the temperature difference of this section of heat-transfer path can use following equation expression:
Δt1＝L·Q1/K·A；
Wherein, Q1 represents the dissipated power of LED lamp, and unit is W; K represents thermal conductivity factor, and unit is W/m DEG C; A represents the sectional area of heat carrier, and unit is m
2; Δ t1 represents this section of heat-transfer path two ends temperature difference, and unit is DEG C; L represents heat-transfer path length, and unit is m.
The present embodiment have employed LED lamp bead 21 with circle, one of them decentralized design of ellipse, quadrangle, pentagon or hexagon, and radiation shell 10 is similar to the structure that LED lamp bead 21 distributes to its structure of part of LED lamp bead 21 vicinity, equivalence on the unit heat sink material wasted work rate Q1 that falls apart significantly is reduced, add the heat carrier sectional area of equivalence, to reach better radiating effect simultaneously.
2, by each heat-delivery surface of LED lamp in the link of function of environment heat emission, its convection type carries out affecting junction temperature in heat transfer and rises three factors such as the temperature difference because have the coefficient of heat transfer, effective heat exchange area, heat exchange surface and fluid of Δ t.Specifically can be as follows with following equation expression:
Δt2＝Q2/hc·A；
Wherein, Q2 represents heat loss through convection amount, and unit is W; Hc represents the coefficient of heat transfer, and unit is W/m
2a; A represents effective heat exchange area, and unit is m
2; Δ t2 represents heat exchange surface and fluid temperature difference, and unit is DEG C.
The present embodiment is using the surfaces externally and internally of the radiation shell 10 of whole LED lamp 100 as effective heat exchange area, and its area has been greater than traditional fin radiating structure, and therefore this structure has good heat loss through convection effect.The very effect considering heat loss through radiation of simultaneously traditional fin radiating structure not more, in fact, not far owing to being separated by between fin, the effect of heat loss through radiation is almost offset completely by the absorption of adjacent fin and inoperative, but in the LED lamp 100 of the present embodiment, because the surfaces externally and internally of whole radiation shell 10 is smooth structure, therefore, heat loss through radiation also plays a significant role, and This further reduces junction temperature and rises Δ t.
In sum, in the present embodiment, LED lamp 100 is by rational structural design and source layout, the heat produced when luminescence component 20 is worked is by the conduction of connecting plate 30, quick heat radiating is carried out via radiation shell 10, thus make LED lamp have excellent heat dispersion and radiating efficiency, can high-power LED lamp be applicable to.Meanwhile, owing to eliminating traditional fin slices radiator, reduce weight and the manufacturing cost of LED lamp, simplify assembly technology, and maintain the overall aesthetics of this LED lamp.
The foregoing is only preferred embodiment of the present utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the utility model protects.
Claims (10)
1. a LED lamp, comprise radiation shell and be located at luminescence component and the lamp holder of radiation shell both sides, described luminescence component includes multiple LED lamp bead; It is characterized in that: described radiation shell comprises distribution path that its cross section is luminescence component described in matching and to sending out in contrast to described luminescence component the frame wall closing side and extend; Described LED lamp comprises a plate and an insulating boot further, and described connecting plate is connected with radiation shell in the mode of thermo-contact, and fixes luminescence component with its side end face away from described radiation shell; Described insulating boot comprises the perisporium of circular shell structure, and radiation shell is fixed in one end of described perisporium, and the other end is connected with lamp holder.
2. LED lamp according to claim 1, is characterized in that: the cross section of described radiation shell is quadrangle.
3. LED lamp according to claim 1, is characterized in that: the diameter of described perisporium reduces gradually from the side away from described radiation shell.
4. LED lamp according to claim 1, is characterized in that: described luminescence component also comprises the circuit board be arranged between described LED lamp bead and described connecting plate, is interconnected between described circuit board and described connecting plate by thermal interfacial material.
5. LED lamp according to claim 4, is characterized in that: described circuit board is pcb board.
6. LED lamp according to claim 1, is characterized in that: described LED lamp comprises lampshade further, and described lampshade is fixed on connecting plate, and surrounds one for the accommodating cavity of accommodating described luminescence component.
7. a LED lamp, comprise radiation shell and be located at luminescence component and the lamp holder of radiation shell both sides, described luminescence component includes multiple LED lamp bead; It is characterized in that: described LED lamp bead is with one end of the cross sectional shape of matching frame wall described frame wall for path profile is arranged at; Described LED lamp comprises a plate and an insulating boot further, and described connecting plate is connected with radiation shell in the mode of thermo-contact, and fixes luminescence component with its side end face away from described radiation shell; Described insulating boot comprises the perisporium of circular shell structure, and radiation shell is fixed in one end of described perisporium, and the other end is connected with lamp holder.
8. LED lamp according to claim 7, is characterized in that: the cross section of described radiation shell is quadrangle.
9. LED lamp according to claim 7, is characterized in that: described luminescence component also comprises the pcb board be arranged between described LED lamp bead and described connecting plate, is interconnected between described pcb board and described connecting plate by thermal interfacial material.
10. LED lamp according to claim 7, is characterized in that: described LED lamp comprises lampshade further, and described lampshade is fixed on connecting plate, and surrounds one for the accommodating cavity of accommodating described luminescence component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679447.1U CN204284998U (en) | 2014-11-14 | 2014-11-14 | A kind of LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679447.1U CN204284998U (en) | 2014-11-14 | 2014-11-14 | A kind of LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284998U true CN204284998U (en) | 2015-04-22 |
Family
ID=52868153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420679447.1U Expired - Fee Related CN204284998U (en) | 2014-11-14 | 2014-11-14 | A kind of LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284998U (en) |
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2014
- 2014-11-14 CN CN201420679447.1U patent/CN204284998U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 411-45, C building, Zhejiang Science Park, 525 Xixi Road, Xihu District, Zhejiang, Hangzhou 310023, China Patentee after: Hangzhou high media Polytron Technologies Inc Address before: Room 411-45, C building, Zhejiang Science Park, 525 Xixi Road, Xihu District, Zhejiang, Hangzhou 310023, China Patentee before: HANGZHOU ZHIGAO MEDIA TECHNOLOGY CO., LTD. |
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| 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: 20150422 Termination date: 20201114 |