CN203404759U - Heat radiation structure of LED lamp - Google Patents
Heat radiation structure of LED lamp Download PDFInfo
- Publication number
- CN203404759U CN203404759U CN201320515314.6U CN201320515314U CN203404759U CN 203404759 U CN203404759 U CN 203404759U CN 201320515314 U CN201320515314 U CN 201320515314U CN 203404759 U CN203404759 U CN 203404759U
- Authority
- CN
- China
- Prior art keywords
- heat
- heat conductor
- radiator
- light source
- conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 54
- 230000017525 heat dissipation Effects 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 239000000084 colloidal system Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses a heat radiation structure of an LED lamp. The heat radiation structure is characterized by comprising a heat conductor, an insulated radiating body and a light source plate. The heat conductor is located on the middle section of a bulb lamp and provided with an accommodating cavity. The insulated radiating body is matched with the outer surface of the heat conductor, an insertion section which is inserted in a lamp cap is arranged at one end of the radiating body, and a heat conduction passage is formed between the insertion section and the inner wall of the lamp cap. The light source plate is fixed to the heat conductor, and a heat conduction passage is formed between the light source plate and the heat conductor. A driver which drives the light source plate is arranged in the accommodating cavity, the heat conductor is provided with an extension section which is matched with the inner wall of the insertion section, and a heat conduction passage is formed between the outer wall of the heat conductor and the inner wall of the radiating body. According to the scheme, the heat conductor conducts heat to the insertion section through the extension section and then conducts heat to the lamp cap, connection between the lamp cap and a lamp holder is fully utilized, another heat dissipation passage is formed, and the heat conduction performance of the lamp cap is fully utilized.
Description
Technical Field
The utility model relates to a heat radiation structure for LED lamp.
Background
The performance of LED light sources has allowed for the replacement of traditional incandescent, energy-saving light sources in many lighting applications. According to the characteristics of the LED light source, the lamp needs to process proper heat dissipation measures, so that the junction temperature of the LED chip is kept at a normal level, stable luminous flux is provided, and long service life is maintained.
In the prior art, metal shells are used as radiators of LED light sources, and the radiators of the metal shells are directly convected with outside air, so that a good radiating effect is obtained. However, because of the exposed metal conductor, the safety performance requirement of the whole lamp is high, a power supply scheme with high safety level must be adopted, and thus, proper insulation treatment must be performed inside the lamp body, and finally the whole lamp is high in manufacturing cost.
On the other hand, the heat radiator made of the metal material generates heat, and then the heat radiation of the metal material is small relative to air, and most of the heat is still accumulated in the heat radiator.
SUMMERY OF THE UTILITY MODEL
To current LED lamp metal radiator mode radiating effect and security performance's defect, the utility model provides a heat radiation structure of LED lamp, its technical scheme as follows:
a heat dissipation structure of an LED lamp, comprising:
a heat conductor, located in the middle section of a bulb-type lamp, having a containing cavity;
the insulating radiator is matched with the outer surface of the heat conductor, one end of the insulating radiator is provided with an inserting section inserted into a lamp cap, and a heat conduction path is arranged between the inserting section and the inner wall of the lamp cap; and
a light source plate fixed to the heat conductor and having a heat conduction path therewith; wherein,
the accommodating cavity is internally provided with a driver for driving the light source plate; the heat conductor is provided with an extension section matched with the inner wall of the insertion section; a heat conduction path is arranged between the outer wall of the heat conductor and the inner wall of the radiator.
The improvement of the scheme is as follows:
in a preferred embodiment, a space between the extension section of the heat conductor and the lamp cap is filled with a heat conductive colloid.
In a preferred embodiment, the light source board and the driver are connected to each other by a connector.
In a preferred embodiment, the heat conductor is a revolution body, the radiator is a revolution body, and the portion where the heat conductor and the radiator are matched is a revolution surface.
In a preferred embodiment, the driver is vertically fixed to a central region of the light source board; one end of the heat conductor is provided with an opening, the peripheral part of the light source plate is matched with the opening, and a heat conduction passage is arranged between the light source plate and the opening.
In a preferred embodiment, the radiator has a light outlet, and the light outlet fixes a lampshade covering the light outlet; the opening is completely contracted in the light outlet, and the outer diameter of the opening is smaller than that of the light outlet.
The beneficial effect of this scheme has:
1. the heat can be quickly conducted to the heat conductor and the radiator, and the heat is radiated out through the outer surface of the radiator by two modes of convection and radiation. Particularly, the heat conductor conducts heat to the plug-in section through the extension section and then to the lamp holder, so that the connection between the lamp holder and the lamp holder is fully utilized, another heat dissipation channel is formed, and the heat conduction performance of the lamp holder is fully utilized.
2. The heat conductor and the radiator form a good insulating and heat radiating structure. The heat conductor of the inner layer has excellent heat-conducting property, the effects of shell insulation and good heat conduction of the inner layer are achieved, and the safety performance is very outstanding.
Drawings
The invention will be further explained with reference to the following embodiments:
fig. 1 is a schematic axial sectional view of a first embodiment of the present invention;
FIG. 2 is a perspective exploded view of the major components of the embodiment of FIG. 1;
fig. 3 is a schematic axial sectional view of a second embodiment of the present invention.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1 and fig. 2, a schematic diagram of a first embodiment of the present invention is shown. Wherein the figure is a schematic view of an axial section thereof; fig. 2 shows the main parts exploded.
In the embodiment, the heat dissipation structure of the LED lamp comprises a heat conductor 10, wherein the heat conductor 10 is made of aluminum alloy through stamping, and the structure and the forming process are simple. The heat conductor 10 is located in the middle portion of the bulb-type lamp, and has a receiving cavity 11, in which a driver 50 for driving the LED light source is received.
The radiator 20 is made of insulating plastic and is matched with the outer surface of the heat conductor 10, one end of the radiator is provided with an inserting section 21, the inserting section 21 is inserted into a lamp cap 30, and a heat conduction path is arranged between the inserting section 21 and the inner wall of the lamp cap 30.
And a light source board 40, which is mainly made of an aluminum substrate PCB, and on which LED particles are fixed. The light source plate 40 is fixed to the heat conductor 40 and has a heat conduction path therewith.
The heat conductor 10 has an extension section 13, and the extension section 13 is matched with the inner wall of the insertion section 21; a heat conduction path is arranged between the outer wall of the heat conductor and the inner wall of the radiator.
Heat from the light source board 40 can be rapidly transferred to the heat conductor 10, and since the heat conductor 10 is thermally conducted in cooperation with the radiating body 20, heat on the heat conductor 10 can be rapidly transferred to the radiating body 20, so that the heat can be dissipated by both convection and radiation through the outer surface of the radiating body 20. Particularly, the heat conductor 10 also conducts heat to the plug-in section 21 through the extension section 13 and then to the lamp cap 30, thereby making full use of the connection between the lamp cap 30 and the lamp holder and other facilities, forming another heat dissipation channel, and making full use of the heat conduction performance of the lamp cap 30.
On the other hand, the heat conductor 10 and the radiator 20 constitute a good insulating heat dissipation structure. The heat conductor 10 of the inner layer has excellent heat-conducting property, so that heat can be distributed at the matching surface between the heat conductor 10 and the radiator 20 most quickly; meanwhile, the radiator 20 is made of an insulating material, so that good thermal radiation performance of the outer surface of the radiator can be easily realized, the effects of insulation of the shell and good heat conduction of the inner layer are achieved, and the safety performance of the radiator is very outstanding.
This embodiment still has other some characteristics:
the space between the extension section 12 of the heat conductor 10 and the lamp cap 30 is filled with the heat conductive colloid 60, and the heat conductive colloid 60 forms an additional heat transfer channel, so that the inner wall of the extension section 12 can directly conduct heat to the lamp cap 60, and the thermal resistance from the heat conductor 10 to the lamp cap 30 is further reduced.
The light source board 40 and the driver are connected to each other through a connector 41 as shown in fig. 2 by 50. The connector 41 simplifies the assembly process of the light source board 40 and the driver 50, shortens the assembly time, and improves the consistency of the connection points.
In order to maximize the heat conduction and dissipation effect, the heat conductor 10 is in the shape of a rotator, the radiator 20 is also in the shape of a rotator, the matching portion of the heat conductor and the radiator is also a rotating surface, and the effective space is fully utilized in the circumferential direction as a heat conduction path.
In a suitable compact bulb lamp configuration, the driver 50 is vertically fixed to the central region of the light source board 40; the heat conductor 10 has an opening 13 at one end, the peripheral portion of the light source plate 40 is disposed in the opening 13, and a heat conduction path is formed between the opening and the light source plate 40, so that the portion where the heat conductor 10 and the light source plate 40 are engaged is simple, and has a sufficient heat conduction contact area.
Example two:
as shown in fig. 3, the second embodiment of the present invention is schematically illustrated. The heat conductor 10 and the radiator 20 of the present embodiment are similar to the embodiment in the form of a solid of revolution, and the light source board 40 and the driver 50 are also similar to the embodiment in the manner of mounting and fixing. The radiator 20 has a light outlet 22, and the light outlet 22 fixes a lampshade 70 covering the light outlet 22; the opening 13 of the heat conductor 10 is completely contracted inside the light outlet 22, and the outer diameter thereof is smaller than the light outlet 22. Since the heat of the heat conductor 10 can be conducted out from the radiator 20 and also from the lamp cap 30, the opening 13 of the heat conductor 10 can be reduced appropriately so as to be constricted at the light outlet. Therefore, relative to the light source plate 40 emitting light downwards, the embodiment can realize reverse emergent light flux in the direction of S, greatly expands the light emitting angle of the whole lamp, and easily realizes the light output effect of the whole space.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (6)
1. The utility model provides a heat radiation structure of LED lamp which characterized in that: it includes:
a heat conductor, located in the middle section of a bulb-type lamp, having a containing cavity;
the insulating radiator is matched with the outer surface of the heat conductor, one end of the insulating radiator is provided with an inserting section inserted into a lamp cap, and a heat conduction path is arranged between the inserting section and the inner wall of the lamp cap; and
a light source plate fixed to the heat conductor and having a heat conduction path therewith; wherein,
the accommodating cavity is internally provided with a driver for driving the light source plate; the heat conductor is provided with an extension section matched with the inner wall of the insertion section; a heat conduction path is arranged between the outer wall of the heat conductor and the inner wall of the radiator.
2. The heat dissipation structure of an LED lamp according to claim 1, wherein: and a space between the extension section of the heat conductor and the lamp holder is filled with heat-conducting colloid.
3. The heat dissipation structure of an LED lamp according to claim 1, wherein: the light source board and the driver are connected to each other through a connector.
4. The heat dissipation structure of an LED lamp according to claim 1, wherein: the heat conductor is in a shape of a rotator, the radiator is also in a shape of a rotator, and the part where the radiator and the radiator are matched with each other is also a rotating surface.
5. The heat dissipating structure of an LED lamp according to claim 1, 2, 3 or 4, wherein: the driver is vertically fixed on the central area of the light source plate; one end of the heat conductor is provided with an opening, the peripheral part of the light source plate is matched with the opening, and a heat conduction passage is arranged between the light source plate and the opening.
6. The heat dissipation structure of an LED lamp according to claim 5, wherein: the radiator is provided with a light outlet which is used for fixing a lampshade covering the radiator; the opening is completely contracted in the light outlet, and the outer diameter of the opening is smaller than that of the light outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515314.6U CN203404759U (en) | 2013-08-22 | 2013-08-22 | Heat radiation structure of LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515314.6U CN203404759U (en) | 2013-08-22 | 2013-08-22 | Heat radiation structure of LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404759U true CN203404759U (en) | 2014-01-22 |
Family
ID=49940695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320515314.6U Expired - Fee Related CN203404759U (en) | 2013-08-22 | 2013-08-22 | Heat radiation structure of LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404759U (en) |
-
2013
- 2013-08-22 CN CN201320515314.6U patent/CN203404759U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8783910B2 (en) | LED lamp system utilizing a hollow liquid-cooled device | |
| US8641237B2 (en) | LED light bulb providing high heat dissipation efficiency | |
| CN102803842B (en) | Heat managing device | |
| JP5530040B2 (en) | LED bulb and manufacturing method thereof | |
| KR101414649B1 (en) | Lighting apparatus | |
| TW201139931A (en) | Energy-saving lamp | |
| US8686623B2 (en) | Omni-directional channeling of liquids for passive convection in LED bulbs | |
| JP2008186758A (en) | Self-ballasted lighting led lamp | |
| JP3194796U (en) | Omni-directional LED bulb | |
| JP5718199B2 (en) | Light bulb-type lighting device | |
| JP5582899B2 (en) | Lamp and lighting device | |
| JP2015076281A (en) | Lighting device | |
| JP2012022855A (en) | Lighting device | |
| TW201135148A (en) | LED fluorescent lamp | |
| CN103807622B (en) | Lighting device | |
| CN105508893A (en) | LED bulb lamp | |
| CN203404759U (en) | Heat radiation structure of LED lamp | |
| CN103206689B (en) | Heat abstractor, light-emitting device and the light fixture with the light-emitting device | |
| US20190063738A1 (en) | Led bulb | |
| TW201219695A (en) | A LED lamp | |
| CN201851922U (en) | LED (light-emitting diode) lighting device with heat-dissipation device | |
| CN201739867U (en) | Electrothermal separation LED lamp-bulb modular structure | |
| CN203215632U (en) | LED radiator structure and LED lamp comprising same | |
| CN103765096A (en) | Lighting lamp | |
| RU2010146392A (en) | LED LAMP |
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 |
Granted publication date: 20140122 Termination date: 20160822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |