CN201909191U - Efficient heat-radiating LED lamp - Google Patents
Efficient heat-radiating LED lamp Download PDFInfo
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- CN201909191U CN201909191U CN2010205507560U CN201020550756U CN201909191U CN 201909191 U CN201909191 U CN 201909191U CN 2010205507560 U CN2010205507560 U CN 2010205507560U CN 201020550756 U CN201020550756 U CN 201020550756U CN 201909191 U CN201909191 U CN 201909191U
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- supporter
- heat
- substrate
- radiating
- fin
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to an efficient heat-radiating LED lamp, and particularly to a radiator for an LED lamp. The efficient heat-radiating lamp comprises the radiator. The radiator comprises a substrate and at least one set of radiating assemblies, which is fixed on the substrate. Each set of radiating assemblies comprises a supporter and a plurality of radiating fins. The supporter is fixed on the substrate and form a heat conduction connection with the substrate. The plurality of radiating fins are fixed on the supporter and form a heat conduction connection with the supporter. The plurality of radiating fins are separately arranged along a circumferential direction of the supporter and is fixed with the supporter. Each radiating fin extends along a height direction of the supporter. A heat radiating channel is formed between two adjacent radiating fins respectively. The efficient heat-radiating LED lamp has the following advantages: large heat radiating area, good heat radiating effect, and capability of prolonging the service life of the LED lamp. The efficient heat-radiating LED lamp settles the following problems in the prior-art LED lamp: smaller surface area in the adopted radiating rod, non-ideal heat radiation effect, short service life of the LED lamp, etc.
Description
Technical field
The utility model relates to a kind of LED light fixture of high efficiency and heat radiation, relates in particular to a kind of radiator of the LED of being used for light fixture.
Background technology
LED is applied in various occasions as a kind of novel illumination light source just more and more widely with outstanding advantages such as its energy-saving and environmental protection, luminous efficiency height, life-span length.Adopt high-power LED light source to be applied in and can be used as large-scale light fixture use such as street lamp, wall lamp in the light fixture now.But great power LED produces a large amount of heats when work, if untimely distributing, then can make LED owing to high temperature suffers damage, influence service life, owing to use very complicated at the environment of outdoor lighting, need to reserve bigger area of dissipation, realize better radiating effect, could guarantee the height reliability of LED work.Adopt conventional heat dissipation technology to improve and reserve area of dissipation, need to increase and use a large amount of metal materials, thereby make light fixture weight very big, influenced the security of light fixture.
CN101373061A discloses a kind of LED light fixture; comprise heat-radiating substrate, led light source assembly, light permeable protection; the led light source assembly comprises several LED and circuit radiating bottom plate; led light source assembly and heat-radiating substrate are fixedly connected and conduct heat to heat-radiating substrate by the circuit radiating bottom plate; light permeable protection is tightly connected mutually with heat-radiating substrate, and the back side of heat-radiating substrate is provided with several heat-radiating rod that is arranged in array.There are the following problems for above-mentioned LED light fixture: the surface area of heat-radiating rod is less, lives the height reliability that is difficult to guarantee the LED light fixture under the abominable temperature environment, if increase cooling surface area, then needing to add large substrates increases heat-radiating rod, strengthens the weight of light fixture.
Summary of the invention
The utility model purpose is to provide a kind of area of dissipation big, good heat dissipation effect, can prolong the LED light fixture of the high efficiency and heat radiation in LED light fixture service life, having solved existing LED light fixture adopts the surface area of heat-radiating rod existence less, radiating effect is undesirable, has influenced the problems such as service life of LED light fixture.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: it comprises radiator, described radiator comprises substrate and at least one group of radiating subassembly that is fixed on the substrate, every group of radiating subassembly comprises supporter and some fin, described supporter is fixed on the substrate and forms heat conduction with substrate and is connected, and described some fin are fixed on the supporter and form heat conduction with supporter and are connected; Described some fin are circumferentially spaced apart and fix with supporter along supporter, and every fin extends along the supporter short transverse, forms heat dissipation channel between the adjacent fin.Wherein said supporter removes and can be fixed on upper surface of base plate, and fin can form outside vertically upward the heat dissipation channel, can also fix the side of substrate.Radiating subassembly of the present utility model adopts the form of fixing some fin on supporter, the heat that is installed in the led chip generation of substrate below is passed to substrate earlier, be passed to supporter via substrate again, supporter is passed to most of heat on the fin again, make the surface area of supporter and the surface area of fin all play thermolysis, thereby improved the area of dissipation of radiator greatly, and supporter also can increase the thermocontact area of fin and substrate, accelerate the heat conduction velocity of substrate to fin, improve the radiating effect of LED light fixture, prolonged the service life of LED light fixture.Form the heat dissipation channel vertical between the adjacent fin with substrate surface, thereby heat is exchanged by the air of supporting body surface and fin surface and heat dissipation channel, and the hot-air in the heat dissipation channel rises and realizes the good heat radiating of LED light fixture with outside air convection.
As preferably, the cross section of described supporter is rounded or oval, and described some fin distribute radially along supporting body surface; Or the cross section of described supporter is polygon, and described some fin are distributed in respectively on the not ipsilateral of supporter, and the fin that wherein is positioned on the supporter same side is parallel each other.
As preferably, described substrate is the plate-type heat-pipe that inside is provided with cavity, and cavity is filled with the easily liquid medium of gasification of capillary structure, support member and chance heat, and substrate top is the heat pipe condensation end, and the substrate bottom is the heat pipe evaporation ends.Liquid medium absorbs in the substrate bottom and gasifies after the LED lamp conducts the heat of coming, thereby reduce the temperature of substrate bottom, rise and condensation gradually in liquid medium gasification back, distribute for fin via fin the supporter and the further conduction on heat transferred substrate top, condensed liquid medium is through getting back to the body lower end under capillary structure effect and the gravity effect, thereby said process constantly circulation is realized the good heat radiating of LED light fixture to the substrate cooling.Wherein, plate-type heat-pipe can be strengthened the heat radiation cooling effect of radiator to the LED light fixture as substrate, thereby prolong the service life of LED light fixture.In addition, described substrate also can be solid sheet metal.The liquid medium of meeting the easy gasification of heat is a heat pipe liquid medium commonly used.
As preferably, described fin is provided with the cross-ventilation through hole.
As preferably, described supporter is formed with top-down cavity, and the cavity inwall can be used as cooling surface area, further the enhance heat effect.
As preferably, described upper surface of base plate and/or lower surface are cambered surface.
As preferably, the hypomere of described supporter is provided with horizontal cross-ventilation hole, thereby can strengthen cross-ventilation, improves radiating effect.
As preferably, described radiator is made of the array radiating subassembly, and described array radiating subassembly is dot matrix and arranges.Radiating subassembly adopts dot matrix to arrange, no matter is arranged on upper surface of base plate or substrate side surfaces, and the passage that forms between radiating subassembly all plays the forced convertion radiating effect that strengthens wind.
As preferably, described substrate, supporter, the fin structure that is formed in one is fixedly compared with soldering, significantly reduces the thermal resistance of junction, strengthens heat conduction and radiating effect.
Therefore, it is big to the utlity model has area of dissipation, and good heat dissipation effect can prolong characteristics such as LED light fixture service life.
Description of drawings
Fig. 1 is the plan structure schematic diagram of the utility model first embodiment;
Fig. 2 is the plan structure schematic diagram of second, third embodiment of the utility model;
Fig. 3 is the structural representation of the utility model the 3rd embodiment substrate.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, the radiator that is used for the LED light fixture comprises substrate 1 and the many groups of radiating subassemblies 2 that are matrix distribution that are fixed on substrate 1 upper surface, substrate 1 is a solid sheet metal, every group of radiating subassembly 2 comprises supporter 3 and multi-disc fin 4, the cross section of supporter 3 is rounded, supporter 3 is vertically fixed on the upper surface of substrate 1 and forms heat conduction with substrate by its lower end and is connected, the upper surface of multi-disc fin 4 and substrate 1 is vertical and distribute radially along the surface of supporter 3, be one of the forming structure and form heat conduction with supporter and is connected the formation heat dissipation channel 6 vertical between the adjacent fin of fin 4 and supporter 3 with upper surface of base plate.
Embodiment 2: as shown in Figure 2, the radiator that is used for the LED light fixture comprises substrate 1 and the many groups of radiating subassemblies 2 that are matrix distribution that are fixed on substrate 1 upper surface, substrate 1 is a solid sheet metal, every group of radiating subassembly 2 comprises supporter 3 and multi-disc fin 4, the cross section of supporter 3 is rectangular, the upper surface of multi-disc fin 4 and substrate 1 is vertical and be distributed on the relative two sides of supporter 3, fin 4 is parallel each other, supporter 3 is vertically fixed on the upper surface of substrate 1 and forms heat conduction with substrate by its lower end and is connected, be one of the forming structure and form heat conduction with supporter and is connected the formation heat dissipation channel 6 vertical between the adjacent fin of fin 4 and supporter 3 with upper surface of base plate.
Embodiment 3: as shown in Figure 2, the radiator that is used for the LED light fixture comprises substrate 1 and the many groups of radiating subassemblies 2 that are matrix distribution that are fixed on substrate 1 upper surface, every group of radiating subassembly 2 comprises supporter 3 and multi-disc fin 4, the cross section of supporter 3 is rectangular, the upper surface of multi-disc fin 4 and substrate 1 is vertical and be distributed on the relative two sides of supporter 3, fin 4 is parallel each other, supporter 3 is vertically fixed on the upper surface of substrate 1 and forms heat conduction with substrate by its lower end and is connected, be one of the forming structure and form heat conduction with supporter and is connected the formation heat dissipation channel 6 vertical between the adjacent fin of fin 4 and supporter 3 with upper surface of base plate.
As shown in Figure 3, substrate 1 is the plate-type heat-pipe that inside is provided with cavity 9, cavity 9 is surrounded by upper shell 7 and lower house 8 and forms, support by support member 11 between upper shell 7 and the lower house 8, cavity 9 is filled with capillary structure 10 and water, substrate top is that upper shell 7 is the heat pipe condensation end, and the substrate bottom is that lower house is the heat pipe evaporation ends.
Protection domain of the present utility model is not limited to the foregoing description; the utility model also can use in the heat dissipation technology of other electronic component; the utility model is each novel characteristics and combination of features; and the radiator with feature of the present utility model can have more than two in a LED light fixture; be distributed in the diverse location of light fixture respectively; such as in the both sides of light fixture or the like; the utility model radiator can be arranged on the top of LED light fixture in addition, and also side that can be arranged on the LED light fixture or the like does not limit.
Claims (10)
1. the LED light fixture of a high efficiency and heat radiation, comprise radiator, it is characterized in that: described radiator comprises substrate and at least one group of radiating subassembly that is fixed on the substrate, every group of radiating subassembly comprises supporter and some fin, described supporter is fixed on the substrate and forms heat conduction with substrate and is connected, and described some fin are fixed on the supporter and form heat conduction with supporter and are connected; Described some fin are circumferentially spaced apart and fix with supporter along supporter, and every fin extends along the supporter short transverse, forms heat dissipation channel between the adjacent fin.
2. the LED light fixture of high efficiency and heat radiation according to claim 1 is characterized in that the cross section of described supporter is rounded or oval, and described some fin distribute radially along supporting body surface.
3. the LED light fixture of high efficiency and heat radiation according to claim 1, the cross section that it is characterized in that described supporter is polygon, described some fin distribute respectively on the not ipsilateral of supporter, and the fin that wherein is positioned on the supporter same side is parallel each other.
4. according to the LED light fixture of claim 1 or 2 or 3 described high efficiency and heat radiations, it is characterized in that described substrate is the plate-type heat-pipe that inside is provided with cavity, cavity is filled with the easily liquid medium of gasification of capillary structure, support member and chance heat, substrate top is the heat pipe condensation end, and the substrate bottom is the heat pipe evaporation ends.
5. according to the LED light fixture of claim 1 or 2 or 3 described high efficiency and heat radiations, it is characterized in that described fin is provided with the cross-ventilation through hole.
6. according to the LED light fixture of claim 1 or 2 or 3 described high efficiency and heat radiations, it is characterized in that described upper surface of base plate and/or lower surface are cambered surface.
7. according to the LED light fixture of claim 1 or 2 or 3 described high efficiency and heat radiations, it is characterized in that described supporter is formed with top-down cavity.
8. the LED light fixture of high efficiency and heat radiation according to claim 7 is characterized in that the hypomere of described supporter is provided with horizontal cross-ventilation hole.
9. according to the LED light fixture of claim 1 or 2 or 3 described high efficiency and heat radiations, it is characterized in that described radiator is made of the array radiating subassembly, described array radiating subassembly is dot matrix and arranges.
10. according to the LED light fixture of claim 1 or 2 or 3 described high efficiency and heat radiations, it is characterized in that described substrate, supporter, the fin structure that is formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205507560U CN201909191U (en) | 2010-09-30 | 2010-09-30 | Efficient heat-radiating LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205507560U CN201909191U (en) | 2010-09-30 | 2010-09-30 | Efficient heat-radiating LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201909191U true CN201909191U (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205507560U Expired - Fee Related CN201909191U (en) | 2010-09-30 | 2010-09-30 | Efficient heat-radiating LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201909191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426949A (en) * | 2017-07-13 | 2017-12-01 | 安徽大鸿智能科技有限公司 | LED display heat abstractor |
-
2010
- 2010-09-30 CN CN2010205507560U patent/CN201909191U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426949A (en) * | 2017-07-13 | 2017-12-01 | 安徽大鸿智能科技有限公司 | LED display heat abstractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20110930 |