CN210568310U - Efficient heat dissipation structure for single-particle LED light source combined lamp - Google Patents
Efficient heat dissipation structure for single-particle LED light source combined lamp Download PDFInfo
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- CN210568310U CN210568310U CN201921157229.0U CN201921157229U CN210568310U CN 210568310 U CN210568310 U CN 210568310U CN 201921157229 U CN201921157229 U CN 201921157229U CN 210568310 U CN210568310 U CN 210568310U
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Abstract
The utility model provides a single granule LED light source combination lamps and lanterns use high-efficient heat radiation structure, including a light source board subassembly and a heat radiation subassembly, the light source board subassembly includes a circuit board and a plurality of granule LED light beads, a plurality of granule LED light beads distribute over terminal surface under the circuit board; the heat dissipation assembly comprises a bottom plate which is attached and connected with the circuit board, and a plurality of low-thermal-resistance convex strips and a plurality of heat dissipation fins which are arranged on the upper end surface of the bottom plate, wherein the plurality of low-thermal-resistance convex strips are uniformly distributed on the bottom plate, and the plurality of heat dissipation fins are arranged in a scattering shape by taking the bottom plate as a center and are perpendicular to the bottom plate and the plurality of low-thermal-resistance convex. The utility model provides a single granule LED light source combination is high-efficient heat radiation structure for lamps and lanterns can effectively conduct the heat of granule LED light on the radiating fin along low thermal resistance passageway, improves lamps and lanterns radiating fin's temperature, then realizes effectively dispelling the heat with the air convection, finally makes the temperature reduction of granule LED light pearl, has effectively improved the light efficiency and the life-span of LED lamps and lanterns.
Description
Technical Field
The utility model relates to the technical field of lighting fixtures, especially, relate to a single granule LED light source combination lamps and lanterns are with high-efficient heat radiation structure.
Background
High power LED lamps are a large number of lamps used in current lighting designs. The LED light source is a novel energy-saving light source widely applied to various occasions in recent years, has the characteristics of high light efficiency, good color rendering property, no stroboflash, instant start, shock resistance and the like, particularly has the advantage of long service life, and is a maintenance-free green energy-saving light source. The LED light source can generate heat like other light sources, approximately 75% of energy can be changed into heat, the LED light source is also different from other light sources in that the LED light source has a small volume and is an approximately point-shaped light source, the heat with high power is difficult to radiate through convection, radiation and other modes, the luminous efficiency and the service life of the light source are seriously and negatively related to the temperature of the light source, and the higher the temperature is, the lower the luminous efficiency is, and the lower the service life is; the existing LED light source lamp is generally a closed lamp, so that the efficiency of a heat dissipation structure of the existing LED light source lamp is more important.
Existing LED light sources are generally classified into two types: the integrated light source has the advantages that the integrated light source is packaged in a factory, but the light attenuation of an LED lamp is high due to high concentration, high temperature in operation and low efficiency of a heat dissipation structure; 2 single granule LED light source, such as 3030 series LED light bead, generally 1w to 3w, according to the power requirement of the lamp, choose the corresponding quantity of light beads to install on the aluminum substrate, compared with COB integrated light source, the area of the aluminum substrate of unit light bead is much larger, easy to dissipate heat, the light decay condition of the LED lamp is greatly improved.
At present, for an LED lamp, the heat dissipation mode generally depends on a thin aluminum fin for convection heat dissipation, and the effect of convection heat dissipation depends not only on the area of the thin aluminum fin, but also on the thermal resistance from the LED light beads to the thin aluminum fin. In general, the lamp does not design the thermal diffusion resistance of the single-particle LED light source, i.e. the light bead, on the aluminum substrate, or the thermal resistance from the single-particle LED light source, i.e. the light bead, to the fin root of the thin aluminum fin, so that the heat conduction of the light bead to the thin aluminum fin is affected, and the whole lamp has low light emitting efficiency and short service life due to poor heat dissipation efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the above-mentioned defect of prior art, provide a single granule LED light source combination lamps and lanterns that radiating efficiency is high with high-efficient heat radiation structure to improve the reliability of LED lamps and lanterns.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:
the utility model provides a single granule LED light source combination lamps and lanterns are with high-efficient heat radiation structure, including a light source board subassembly and a radiator unit, wherein:
the light source board assembly comprises a circuit board and a plurality of particle LED light beads, and the particle LED light beads are distributed on the lower end face of the circuit board;
the heat dissipation assembly comprises a bottom plate which is attached and connected with the circuit board, and a plurality of low-thermal-resistance convex strips and a plurality of heat dissipation fins which are arranged on the upper end face of the bottom plate, wherein the plurality of low-thermal-resistance convex strips are uniformly distributed on the bottom plate, and the plurality of heat dissipation fins are perpendicular to the bottom plate and the plurality of low-thermal-resistance convex strips in a scattering manner by taking the bottom plate as a center.
Furthermore, on the efficient heat dissipation structure for the single-particle LED light source combined lamp, the positions of the particle LED light beads on the lower end face of the circuit board correspond to the positions of the low-thermal-resistance convex strips on the upper end face of the bottom plate.
Preferably, the single-particle LED light source combination lamp is provided with a plurality of particle LED light beads, and the particle LED light beads are arranged on the lower end surface of the circuit board.
More preferably, in the efficient heat dissipation structure for the single-particle LED light source combined lamp, the plurality of particle LED light beads are distributed on the circuit board in a ring shape, a triangular shape, a rectangular shape, a linear shape or a wave shape.
Preferably, the low thermal resistance raised lines are in a regular or irregular structure on the efficient heat dissipation structure for the single-particle LED light source combined lamp.
More preferably, on the efficient heat dissipation structure for the single-particle LED light source combined lamp, the low thermal resistance raised lines form an annular, triangular, rectangular, linear or wavy structure on the upper end surface of the bottom plate.
Preferably, the high-efficiency heat dissipation structure for the single-particle LED light source combined lamp is characterized in that a plurality of low-thermal-resistance convex strips are concentrically arranged on the upper end surface of the bottom plate.
Furthermore, on the efficient heat dissipation structure for the single-particle LED light source combined lamp, the circuit board is bonded and connected with the bottom plate through heat conducting glue.
Furthermore, on the efficient heat dissipation structure for the single-particle LED light source combined lamp, the width and the thickness of the low-thermal-resistance convex strip are larger than those of the circuit board and the bottom plate.
Further, on the efficient heat dissipation structure for the single-particle LED light source combined lamp, the particle LED light beads are 3030 series particle LED light beads.
Furthermore, on the efficient heat dissipation structure for the single-particle LED light source combined lamp, the bottom plate, the low-thermal-resistance convex strips and the heat dissipation fins are made of aluminum or aluminum alloy.
The utility model adopts the above technical scheme, compare with prior art, have following technological effect:
the utility model provides a single granule LED light source combination lamps and lanterns are with high-efficient heat radiation structure, be the correspondence in a poor direction through the low thermal resistance sand grip with low diffusion with granule LED light pearl, make the heat of granule LED light pearl along the low thermal resistance sand grip diffusion of low diffusion, reduce the thermal resistance of LED light source to radiating fin root, the heat is effectively conducted on the radiating fin along low thermal resistance passageway, improve lamps and lanterns radiating fin's temperature, convection current radiating effect and radiating fin's temperature is directly proportional, can realize effective heat dissipation with the air convection, finally, the temperature that makes granule LED light pearl reduces, the light efficiency and the life-span of LED lamps and lanterns have effectively been improved.
Drawings
Fig. 1 is a schematic view of an overall structure of a high-efficiency heat dissipation structure for a single-particle LED light source combined lamp of the present invention;
fig. 2 is a schematic view of a top view structure of a high-efficiency heat dissipation structure for a single-particle LED light source combined lamp of the present invention;
fig. 3 is a schematic top view of the high-efficiency heat dissipation structure for a single-particle LED light source combined lamp of the present invention;
fig. 4 is a schematic side view of the high-efficiency heat dissipation structure for a single-particle LED light source combined lamp of the present invention;
wherein each reference numeral;
100-light source board assembly, 101-circuit board, 102-particle LED light beads; 200-heat dissipation assembly, 201-bottom plate, 202-low thermal resistance raised line, 203-heat dissipation fin, 204-heat dissipation channel.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1 and fig. 3, the present embodiment provides an efficient heat dissipation structure for a single-particle LED light source combined lamp, which includes a light source board assembly 100 and a heat dissipation assembly 200 mounted on the light source board assembly 100 for effectively dissipating heat from the light source board assembly 100.
In this embodiment, as shown in fig. 3, the light source board assembly 100 includes a circuit board 101 and a plurality of particle LED beads 102, and the plurality of particle LED beads 102 are distributed on a lower end surface of the circuit board 101.
In this embodiment, as shown in fig. 1, the heat dissipation assembly 200 includes a bottom plate 201 attached to the circuit board 101, and a plurality of low thermal resistance protruding strips 202 and a plurality of heat dissipation fins 203 mounted on an upper end surface of the bottom plate 201, the plurality of low thermal resistance protruding strips 202 are uniformly distributed on the bottom plate 201, and the plurality of heat dissipation fins 203 are arranged perpendicular to the bottom plate 201 and the plurality of low thermal resistance protruding strips 202 in a scattering manner with the bottom plate 201 as a center, and the heat dissipation fins 203 arranged in a scattering manner can effectively improve convection with air, and improve a heat dissipation effect of the heat dissipation fins 203.
In this embodiment, referring to fig. 1 and 3, the circuit board 101 and the bottom plate 201 are bonded and connected by a thermal conductive adhesive and fixed by screws. Specifically, a heat conducting adhesive with low thermal resistance is coated on the back surface of the circuit board 101, so that the circuit board 101 is adhered to the bottom plate 201 of the LED lamp heat dissipation assembly 200.
In this embodiment, the bottom plate 201 and the heat dissipation fins 203 are made of aluminum or aluminum alloy, which has low thermal resistance, good thermal conductivity and low cost.
In this embodiment, the granular LED beads 102 adopt 3030 series granular LED beads, the granular LED beads 201 of 3030 series have a small volume, about 2.5mmx1.5mm, and about 75 percent of the light source power becomes heat, because the thermal capacity of the granular LED beads 201 of 3030 series is small, the temperature will rise rapidly, and in order to ensure the use reliability and the service life of the granular LED beads 102, it is necessary to adopt the efficient heat dissipation structure to dissipate heat.
In the use process of the LED lamp with the efficient heat dissipation structure, the heat of the granular LED light beads 102 is diffused through the circuit board 101 and the bottom board 201 along the low-thermal-resistance protruding strips 202 with low diffusion, the thermal resistance from an LED light source to the fin roots of the heat dissipation fins 203 is reduced, the heat is effectively conducted to the heat dissipation fins 203 along the low-thermal-resistance protruding strips 202, and then is diffused into the air in the heat dissipation channel 204 formed between every two adjacent heat dissipation fins 203, the temperature of the heat dissipation fins of the lamp is increased, and therefore the heat of the granular LED light beads 102 is effectively dissipated. In addition, the low thermal resistance convex strips 202 arranged on the bottom plate 201 locally increase the weight of the heat dissipation assembly 200 a little, so that the balance between material saving and efficient heat dissipation is achieved.
Example 2
Referring to fig. 2 and fig. 3, different from embodiment 1, in the efficient heat dissipation structure for a single-particle LED light source combined lamp, positions of a plurality of particle LED beads 102 on a lower end surface of the circuit board 101 correspond to positions of a plurality of low thermal resistance convex strips 202 on an upper end surface of the base plate 201. Namely, the plurality of granular LED beads 102 are located on the back of the low thermal resistance protruding strip 202 of the LED lamp, and the granular LED beads 102 are arranged in a back-to-back manner, and distributed along the track of the low thermal resistance protruding strip 202.
The heat of the particle LED light beads 102 is diffused along the low-diffusion heat resistance protrusions 202, the heat resistance from an LED light source to the fin roots of the radiating fins 203 of the lamp is reduced, the heat is effectively conducted to the radiating fins 203 along the low-heat resistance channels, the temperature of the radiating fins 203 of the lamp is improved, the convection heat dissipation effect is in direct proportion to the temperature of the radiating fins 203, and therefore the heat can be effectively dissipated by convection in the air in the radiating channels 204, the temperature of the particle LED light beads 102 is reduced, the lighting effect of the LED lamp is effectively improved, and the service life of the LED lamp is effectively prolonged.
Example 3
Referring to fig. 1-3, unlike embodiment 2, in order to quickly diffuse the heat of the granular LED light beads 102 along the low-diffusion low-thermal-resistance ribs 203, the granular LED light beads 102 are required to be distributed along the shape of the low-diffusion low-thermal-resistance ribs 203, so as to form a corresponding back-to-back arrangement relationship between a plurality of low-thermal-resistance ribs 202 and a plurality of granular LED light beads 102.
Specifically, on the efficient heat dissipation structure for the single-particle LED light source combined lamp, the plurality of particle LED light beads 102 are regularly or irregularly distributed on the lower end surface of the circuit board 101. Preferably, a plurality of the particle LED light beads 102 are distributed on the circuit board 101 in a ring shape, a triangle shape, a rectangle shape, a straight line shape or a wave shape. Correspondingly, the low thermal resistance convex strips 202 can also be in a regular or irregular structure; preferably, the low thermal resistance protruding strips 202 are in a ring, triangle, rectangle, straight line or wave structure on the upper end surface of the bottom plate 201.
Referring to fig. 1 to 3, the plurality of granular LED light beads 102 are in a plurality of rings on the circuit board 101, and the plurality of rings are concentrically arranged on the circuit board 101. The low-thermal-resistance convex strips 202 are of an annular structure, the upper end surfaces of the bottom plates 201 are concentrically arranged, namely the granular LED light beads 102 are arranged on the back surfaces of the annular low-diffusion low-thermal-resistance convex strips 203 of the LED lamp, the granular LED light beads 102 are distributed annularly, and the diameter of the central circle of the granular LED light beads is consistent with the diameter of the middle of the corresponding annular low-thermal-resistance convex strip 203.
Example 4
Referring to fig. 1 and 4, unlike embodiment 1, the width and thickness of the low thermal resistance protruding strips 202 are larger than the thickness of the circuit board 101 and the bottom plate 201. The relatively thin circuit board 101 and the bottom plate 201 make the diffusion thermal resistance of the light source very low, reduce the thermal resistance from the particle LED light bead 102 on the LED light source to the fin root of the lamp radiating fin 203, make the heat of the particle LED light bead 102 effectively conduct to the aluminum radiating fin 203 along the low thermal resistance channel formed by the circuit board 101, the bottom plate 201 and the low thermal resistance convex strip 202, improve the temperature of the lamp radiating fin 203, thus the heat is diffused to the air by the convection with the air in the radiating channel 204, and the high-efficiency heat dissipation is realized.
The present invention has been described in detail with reference to the specific embodiments, but the present invention is only by way of example and is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are intended to be within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (10)
1. The utility model provides a single granule LED light source combination lamps and lanterns are with high-efficient heat radiation structure which characterized in that, includes a light source board subassembly and a radiator unit, wherein:
the light source board assembly comprises a circuit board and a plurality of particle LED light beads, and the particle LED light beads are distributed on the lower end face of the circuit board;
the heat dissipation assembly comprises a bottom plate which is attached and connected with the circuit board, and a plurality of low-thermal-resistance convex strips and a plurality of heat dissipation fins which are arranged on the upper end face of the bottom plate, wherein the plurality of low-thermal-resistance convex strips are uniformly distributed on the bottom plate, and the plurality of heat dissipation fins are perpendicular to the bottom plate and the plurality of low-thermal-resistance convex strips in a scattering manner by taking the bottom plate as a center.
2. The efficient heat dissipation structure of claim 1, wherein the positions of the granular LED beads on the lower end surface of the circuit board correspond to the positions of the low thermal resistance ribs on the upper end surface of the base plate.
3. The efficient heat dissipation structure of claim 2, wherein the granular LED beads are regularly or irregularly distributed on the lower end surface of the circuit board.
4. The efficient heat dissipation structure of claim 3, wherein the granular LED beads are distributed on the circuit board in a ring shape, a triangular shape, a rectangular shape, a linear shape or a wave shape.
5. The efficient heat dissipation structure of claim 2, wherein the low thermal resistance ribs are regular or irregular.
6. The efficient heat dissipation structure of claim 5, wherein the low thermal resistance ribs are arranged on the upper end surface of the bottom plate in a ring, triangular, rectangular, linear or wave-shaped configuration.
7. The efficient heat dissipation structure for the single-particle LED light source combined lamp as recited in claim 6, wherein the low thermal resistance ribs are concentrically arranged on the upper end surface of the bottom plate.
8. The efficient heat dissipation structure for the single-particle LED light source combined lamp as claimed in claim 1, wherein the circuit board and the bottom plate are bonded and connected by a heat conductive adhesive.
9. The efficient heat dissipation structure for the single-particle LED light source combined lamp as claimed in claim 1, wherein the width and thickness of the low thermal resistance convex strips are greater than the thickness of the circuit board and the bottom plate.
10. The efficient heat dissipation structure for the single-particle LED light source combined lamp as claimed in claim 1, wherein the bottom plate, the low thermal resistance ribs and the heat dissipation fins are made of aluminum or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157229.0U CN210568310U (en) | 2019-07-23 | 2019-07-23 | Efficient heat dissipation structure for single-particle LED light source combined lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157229.0U CN210568310U (en) | 2019-07-23 | 2019-07-23 | Efficient heat dissipation structure for single-particle LED light source combined lamp |
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| Publication Number | Publication Date |
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| CN210568310U true CN210568310U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921157229.0U Active CN210568310U (en) | 2019-07-23 | 2019-07-23 | Efficient heat dissipation structure for single-particle LED light source combined lamp |
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