CN102281745A - Fin radiator and LED (light emitting diode) lamp module - Google Patents
Fin radiator and LED (light emitting diode) lamp module Download PDFInfo
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- CN102281745A CN102281745A CN2011102079527A CN201110207952A CN102281745A CN 102281745 A CN102281745 A CN 102281745A CN 2011102079527 A CN2011102079527 A CN 2011102079527A CN 201110207952 A CN201110207952 A CN 201110207952A CN 102281745 A CN102281745 A CN 102281745A
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Abstract
The invention relates to a fin radiator which comprises a plate base (31) and a plurality of fins (32). A plurality of fins (32) are fixed on one surface of the base (31). The one surface is a lower surface of the base (31). The fin radiator is characterized in that an upper surface (311) of the base (31) is of a concave-convex shape. In the fin radiator provided by the invention, due to the utilization of the characteristic that thermal grease is squeezed to flow, the upper surface of the base is provided with corresponding grooves, so that the surface contacted with the thermal grease is of a concave-convex shape, the coating thickness of the thermal grease can be reduced and a thermal resistance is reduced. The invention also relates to an LED (light emitting diode) lamp module adopting the fin radiator.
Description
Affiliated technical field
The present invention relates to a kind of fin slices radiator, specifically be a kind of compact conformation, and can play the fin slices radiator of good guide effect, the invention still further relates to the LED lamp module that has adopted above-mentioned fin slices radiator applying thereon heat-conducting cream.
Background technology
Heat dissipation problem is the emphasis problem that led module need solve, and especially for the LED street lamp, requires a plurality of led modules to combine, thereby causes the LED closeness bigger.Because the LED photoelectric conversion efficiency is not high, when a large amount of LED intensive work, will produce a large amount of heats.If these heats effectively can not be dissipated as early as possible, it is very obvious that thing followed thermal effect will become, and causes junction temperature to rise, and influences light extraction efficiency, quickens device aging, reduction of service life.
Traditional LED road lamp cooling path is led module, heat-conducting substrate, finned radiator, and the heat that produces when led module is worked as often as possible is transmitted on the fin of radiator, wishes that heat-conducting substrate has cross conduction ability preferably.Because the conductive coefficient of air is 0.0244W/ (m.K), therefore require substrate and heat sink contact surface to combine closely, preferably there is not the space.
Treated slightly its evenness of common radiator and heat-conducting substrate facing surfaces can reach below the 0.1mm, adopting milling machine or multiple tracks wire drawing to handle can reach below the 0.03mm, but this still can't resolve the existence in gap between both contact surfaces, can't avoid hoarding of heat.Common way is coated with thermally conductive cream thin layer between substrate and radiator.The conductive coefficient of main flow heat-conducting cream is compared with the conductive coefficient of air all greater than 1W/m.k at present, can obviously reduce interface resistance, improves the dissipation of heat.
The heat-conducting cream main component is high molecular polymer and the filler that main chain contains silicon atom, and filler is generally ceramic powders, metallic particles of high thermal conductivity coefficient etc.In traditional heat-conducting cream coating procedure; under the assembling pressure of heat-conducting substrate and radiator; filler particles in the heat-conducting cream between the two can be piled up along the direction (being the radiator diagonal) of pressure drop maximum, causes the heat-conducting cream layer thickness to become big, causes thermal resistance to become big.Simultaneously, because the heat-conducting cream matrix is because its good tiling, when the LED street lamp works long hours, radiator base plate MCPCB or DBC etc. are higher with the finned radiator interface temperature, heat-conducting cream matrix viscosity raises with working temperature and reduces, cause spillover obvious, finally have influence on the reliability of LED street lamp work.In the practical application of LED street lamp the heat-conducting cream boundary layer apply uneven, the improvement on the interfacial structure that problem such as overflow is easily made.
Summary of the invention
First technical problem that the present invention will solve provides a kind of compact conformation, and can play the radiator of good guide effect to applying thereon heat-conducting cream.
First problem that the present invention will solve, can realize by following technical scheme: a kind of fin slices radiator, comprise pedestal 31 and some fins 32 of plate body, described a plurality of fins 32 are fixed on the surface of pedestal 31, and this surface is the lower surface of pedestal 31; It is characterized in that: the upper surface 311 of described pedestal 31 is roughness.
Second technical problem that the present invention will solve, provide a kind of LED lamp module that has adopted above-mentioned fin slices radiator, it comprises several LED lamps 1, is used to install the heat-conducting substrate 2 and the fin slices radiator 3 of LED lamp, described fin slices radiator 3 comprises pedestal 31 and some fins 32 of plate body, described a plurality of fin 32 is fixed on the surface of pedestal 31, and this surface is the lower surface of pedestal 31; Described heat-conducting substrate 2 be fixedly installed on fin slices radiator 3 pedestal 31 upper surface and be provided with heat-conducting cream 5 between the two; It is characterized in that: the upper surface 311 of described pedestal 31 is roughness.
By pool Xiao Ye flow theory as can be known, by the upper surface of fin slices radiator is arranged to roughness, can reduce be squeezed pressure when flowing of heat-conducting cream, prevent the heat-conducting cream accumulation, thereby make the attenuation of heat-conducting cream layer, reduce interface resistance, more heat can be transmitted on the fin of fin slices radiator; The rough upper surface of radiator also makes and the heat-conducting cream constricted flow can effectively hinder overflowing of heat-conducting cream simultaneously.
The upper surface of described pedestal 31 is provided with some grooves and/or projection, formation roughness.
As first preferred embodiment of the present invention, described fin slices radiator 3 pedestals 31 are the plate body of rectangle, its upper surface 311 has orthogonal two groups of grooves, two groups of grooves comprise some grooves, and two groups of grooves are parallel with the edge of pedestal 31 respectively, wherein one group is horizontal groove 41, and another group is perpendicular groove 42; Each is organized the quantity, the interval between same group of adjacent two groove of groove of groove and can set according to the concrete size of the pedestal of fin slices radiator, to reach best result of use.
The groove of upper surface that is arranged on the pedestal of fin slices radiator is used to guide and flowing when limiting the heat-conducting cream pressurized, and is excessive when the width and the degree of depth of groove, can remove the heat-conducting area of the pedestal of bigger fin slices radiator, is unfavorable for heat conduction; If the width of groove and the degree of depth are too small, even less than the heat-conducting cream particle diameter, heat-conducting cream just can not be coated on wherein.
Therefore on the basis of the above, the width of described two groups of groove further groove is 100 μ m～300 μ m, and the degree of depth is at 20 μ m～100 μ m.
The structure of the groove in described two groups of grooves is all identical, and the interval of adjacent two grooves equates in same group of groove; Groove on the pedestal of fin slices radiator is made the same structure that width, the degree of depth equate respectively, can satisfy the heat radiation needs of common led module, and make same width, the groove of the degree of depth on totally one surface of pedestal, manufacture craft is comparatively simple; And the interval of same group of adjacent two grooves equates, can guarantee that the heat-conducting cream of the entire upper surface of pedestal is evenly distributed.
According to pool Xiao Ye flow theory as can be known; heat-conducting cream is in the process of flowing that is squeezed; it has a cross-over phenomenon; be that filler particles in the heat-conducting cream can be piled up along the direction (being the radiator diagonal) of pressure drop maximum; like this heat-conducting cream layer of fin slices radiator pedestal diagonal position will be thicker, is unfavorable for the conduction of heat.
Therefore for obtaining better heat-transfer effect, to adapt to the heat radiation needs of the very big LED lamp module of some closenesses, as second preferred embodiment of the present invention, on the basis of the above: two diagonal positions of the upper surface 311 of the pedestal 31 of described fin slices radiator 3 also have groove 43, and above-mentioned two grooves are long diagonal grooves 43.
On the basis of the above, the present invention can also do following improvement: horizontal groove 41 is identical with the quantity of perpendicular groove 42 on the pedestal 31 of described fin slices radiator 3, and the spacing of adjacent two horizontal grooves 41 equates that the spacing of adjacent two perpendicular grooves 42 equates; Horizontal groove in one group of groove under the described horizontal groove 41, in the middle of being positioned at is positioned at the horizontal position of center line of pedestal 31 upper surfaces 311, and this horizontal groove 41 is the horizontal groove in center; Perpendicular groove in one group of groove under the described perpendicular groove 42, in the middle of being positioned at is positioned at the vertical position of center line of pedestal 31 upper surfaces, and this perpendicular groove is the perpendicular groove in center; The perpendicular groove in horizontal groove in described center and center is divided into four equal rectangular areas with the upper surface 311 of pedestal 31, the diagonal positions of each rectangular area also all has groove, these grooves are short diagonal grooves 44, and are positioned at two long diagonal grooves 43 of short diagonal grooves 44 connection formation of the same diagonal positions of pedestal 31 upper surfaces 311.
Diagonal positions in a plurality of rectangular areas of pedestal upper surface all has groove, more adapt to the characteristic that heat-conducting cream flows when being squeezed, experimental results show that, the structure of second preferred embodiment contrasts the structure of first preferred embodiment, can make that the heat-conducting cream of pedestal upper surface is thinner and be more evenly distributed, reduce thermal resistance significantly.
On the basis of the above, the present invention can also do following improvement: described horizontal groove 41 is identical with the structure of perpendicular groove 42, and described long diagonal grooves 43 is identical with the structure of short diagonal grooves 44; And the width of described long diagonal grooves 43 and short diagonal grooves 44, the degree of depth are respectively greater than width, the degree of depth of horizontal groove 41 and perpendicular groove 42.The upper surface of the pedestal of fin slices radiator is offered deep mixed groove, and is darker in the degree of depth of the long diagonal grooves of the position that heat-conducting cream is piled up easily, short diagonal grooves, further improves the uniformity that heat-conducting cream distributes.
On the basis of the above, the present invention can also do further improvement: the width of described horizontal groove 41 and perpendicular groove 42 is 100 μ m～150 μ m, the degree of depth is 20 μ m～50 μ m, and the width of described long diagonal grooves 43 and short diagonal grooves 44 is 180 μ m～240 μ m, and the degree of depth is 60 μ m～80 μ m.
Therefore for obtaining better heat-transfer effect, to adapt to the heat radiation needs of the very big LED lamp module of some closenesses, as the 3rd preferred embodiment of the present invention, on the basis of the above: horizontal groove 41 on the pedestal 31 of described fin slices radiator 3 and perpendicular groove 42 are one, and described horizontal groove 41 is positioned at the horizontal position of center line of pedestal 31 upper surfaces 311, is the horizontal groove in center; Described perpendicular groove 42 is positioned at the vertical position of center line of pedestal 31 upper surfaces, and this perpendicular groove is the perpendicular groove in center; The horizontal groove 41 in described center, the perpendicular groove 42 in center and two long diagonal grooves 43 are divided into eight equal right-angled triangle zones with the upper surface 311 of pedestal 31; In each right-angled triangle zone, each angle is separated by the angle bisection groove 45 that is positioned at its angular bisector position and an end of three angle bisection grooves 45 intersects, and is three little delta-shaped regions with this right-angled triangle area dividing.
Experimental results show that, the groove of the matrix of the 3rd fin slices radiator that embodiment provides is divided into a plurality of little delta-shaped regions with its upper surface, and angle bisection groove and diagonal grooves lay respectively at each regional diagonal positions of pedestal upper surface, the structure of second preferred embodiment of contrast, make that the heat-conducting cream of pedestal upper surface is thinner and be more evenly distributed that it is best to reduce the thermal resistance effect.
On the basis of the above, the present invention can also do following improvement: the horizontal groove 41 in described center is identical with the structure of perpendicular groove 42, and the structure of described a plurality of angle bisection grooves 45 is identical, and the structure of described two long diagonal grooves 43 is identical; The width of described long diagonal grooves 43, the degree of depth be respectively greater than width, the degree of depth of angle bisection groove 45, and the width of described angle bisection groove 45, the degree of depth are respectively greater than width, the degree of depth of horizontal groove 41 and perpendicular groove 42.
On the basis of the above, the present invention can also do further improvement: the width of the perpendicular groove 42 in horizontal groove 41 in described center and center is 100 μ m～150 μ m, the degree of depth is 20 μ m～50 μ m, the width of described angle bisection groove 45 is 180 μ m～240 μ m, the degree of depth is 60 μ m～80 μ m, the width of described long diagonal grooves 43 is 240 μ m～300 μ m, and the degree of depth is 80 μ m～100 μ m.
On the basis of the above, the width of each groove that described pedestal 31 upper surfaces 311 are provided with is more than 3 times or 3 times of its degree of depth, so that the processing of groove, reduce production costs.
On the basis of the above, the present invention can do following improvement: the upper surface 311 of the pedestal 31 of described fin slices radiator 3 also has the annular groove 46 that is provided with along its edge, is equipped with rubber ring or sealing ring in this annular groove; Because rubber ring or sealing ring that annular groove along the edge setting of the upper surface 311 of fin slices radiator 3 pedestals 31, is assemblied in this annular groove so are limited in its inside with all heat-conducting creams, can further hinder overflowing of heat-conducting cream.
Compared with prior art, fin slices radiator utilization provided by the invention be squeezed characteristic when flowing of heat-conducting cream, at its pedestal upper surface corresponding grooves is set, make the surface formation roughness that contacts with heat-conducting cream; Can reduce the heat-conducting cream coating thickness, reduce thermal resistance; In radiator bottom edge part, have annular groove simultaneously, wherein be equipped with rubber ring or sealing ring, can further hinder overflowing of heat-conducting cream, assurance LED street lamp is worked reliably.
Description of drawings
Fig. 1 is one of embodiment of radiator of the present invention;
Fig. 2 be radiator of the present invention embodiment two;
Fig. 3 be radiator of the present invention embodiment three;
Fig. 4 is the cross-sectional schematic of LED lamp module of the present invention;
Fig. 5 is the enlarged diagram of A portion among Fig. 4.
Embodiment
Embodiment 1
Radiator shown in Figure 1 is embodiments of the invention one, and it has comprised pedestal 31 and some fins 32 of rectangle plate body, and a plurality of fins 32 form a line and are fixed on the surface of pedestal 31, and this surface is the lower surface of pedestal 31; Each fin 32 all lower surface with pedestal 31 is vertical, and the interval between adjacent two fins equates.
The upper surface 311 of pedestal 31 has orthogonal two groups of grooves, forms roughness; Two groups of grooves comprise some grooves, and two groups of grooves are parallel with the edge of pedestal 31 respectively, and wherein one group is horizontal groove 41, and another group is perpendicular groove 42.The structure of horizontal groove and perpendicular groove is all identical, and the interval of adjacent two grooves equates in same group of groove, and the width of horizontal groove 41 and perpendicular groove 42 is 100 μ m～300 μ m, and the degree of depth is 20 μ m～100 μ m, can select suitable numerical value according to actual needs, to obtain best result of use.At existing common fin slices radiator, can horizontal groove 41 and the width of perpendicular groove 42 be set to 150 μ m, the degree of depth is set to 50 μ m.
The upper surface 311 of pedestal 31 also has the annular groove 46 that is provided with along its edge, is equipped with rubber ring or sealing ring (not shown) in this annular groove.
The upper surface 311 of pedestal 31 can adopt laser processing high speed cutting system or CNC finishing impression machine to carry out cutting.
Radiator shown in Figure 2 is embodiments of the invention two, it is with the different of embodiment one: the quantity of horizontal groove 41 and perpendicular groove 42 is identical on the pedestal 31 of fin slices radiator 3, and the spacing of adjacent two horizontal grooves 41 equates that the spacing of adjacent two perpendicular grooves 42 equates; Horizontal groove in one group of groove under the horizontal groove 41, in the middle of being positioned at is positioned at the horizontal position of center line of pedestal 31 upper surfaces 311, and this horizontal groove 41 is the horizontal groove in center; Perpendicular groove in one group of groove under the perpendicular groove 42, in the middle of being positioned at is positioned at the vertical position of center line of pedestal 31 upper surfaces, and this perpendicular groove is the perpendicular groove in center.
Two diagonal positions of the upper surface 311 of the pedestal 31 of fin slices radiator 3 also have groove, and above-mentioned two grooves are long diagonal grooves 43.
The perpendicular groove in horizontal groove in center and center is divided into four equal rectangular areas with the upper surface 311 of pedestal 31, the diagonal positions of each rectangular area also all has groove, these grooves are short diagonal grooves 44, and are positioned at two long diagonal grooves 43 of short diagonal grooves 44 connection formation of the same diagonal positions of pedestal 31 upper surfaces 311.
Embodiment 3
Radiator shown in Figure 3 is embodiments of the invention three, it is with the different of embodiment two: horizontal groove 41 on the pedestal 31 of fin slices radiator 3 and perpendicular groove 42 are one, and horizontal groove 41 is positioned at the horizontal position of center line of pedestal 31 upper surfaces 311, is the horizontal groove in center; Perpendicular groove 42 is positioned at the vertical position of center line of pedestal 31 upper surfaces, and this perpendicular groove is the perpendicular groove in center; The horizontal groove 41 in center, the perpendicular groove 42 in center and two long diagonal grooves 43 are divided into eight equal right-angled triangle zones with the upper surface 311 of pedestal 31; In each right-angled triangle zone, each angle is separated by the angle bisection groove 45 that is positioned at its angular bisector position and an end of three angle bisection grooves 45 intersects, and is three little delta-shaped regions with this right-angled triangle area dividing.
The horizontal groove 41 in center is identical with the structure of perpendicular groove 42, and the structure of a plurality of angle bisection grooves 45 is identical, and the structure of two long diagonal grooves 43 is identical; The horizontal groove in center 41 and in the width of perpendicular groove 42 be 100 μ m～150 μ m, the degree of depth is 20 μ m～50 μ m, and the width of angle bisection groove 45 is 180 μ m～240 μ m, and the degree of depth is 60 μ m～80 μ m, the width of long diagonal grooves 43 is 240 μ m～300 μ m, and the degree of depth is 80 μ m～100 μ m.At existing common fin slices radiator, can horizontal groove 41 and the width of perpendicular groove 42 be set to 150 μ m, the degree of depth is set to 50 μ m; The width of angle bisection groove 45 is set to 80 μ m, and the degree of depth is set to 240 μ m; The width of long diagonal grooves 43 and short diagonal grooves 44 is set to 300 μ m, and the degree of depth is set to 100 μ m.
Embodiment 4
LED lamp module shown in Fig. 4～5 is embodiments of the invention four, and it has comprised several LED lamps 1, MCPCB (the operplate printing wiring board) 2 that is used as heat-conducting substrate and the fin slices radiator 3 of embodiment one; A plurality of LED lamps are installed on the heat-conducting substrate 2 and are arranged in array format, heat-conducting substrate 2 be fixedly installed on fin slices radiator 3 pedestal 31 upper surface and be provided with heat-conducting cream 5 between the two, heat-conducting cream is coated with by rinsing, the method for silk screen printing or mould printing is coated on the fin slices radiator.
The led module of embodiments of the invention five, it is with the different of embodiment four: it has comprised the fin slices radiator of embodiment two.
Embodiment 6
The led module of embodiments of the invention five, it is with the different of embodiment four: it has comprised the fin slices radiator of embodiment three.
Claims (28)
1. fin slices radiator comprises pedestal (31) and some fins (32) of plate body, and described a plurality of fins (32) are fixed on the surface of pedestal (31), and this surface is the lower surface of pedestal (31); It is characterized in that: the upper surface (311) of described pedestal (31) is roughness.
2. fin slices radiator according to claim 1 is characterized in that: the upper surface of described pedestal (31) is provided with some grooves and/or projection, formation roughness.
3. fin slices radiator according to claim 2, it is characterized in that: described fin slices radiator (3) pedestal (31) is the plate body of rectangle, its upper surface (311) has orthogonal two groups of grooves, two groups of grooves comprise some grooves, and two groups of grooves are parallel with the edge of pedestal (31) respectively, wherein one group is horizontal groove (41), and another group is perpendicular groove (42).
4. fin slices radiator according to claim 3 is characterized in that: the width of described two groups of groove further groove is 100 μ m～300 μ m, and the degree of depth is at 20 μ m～100 μ m.
5. fin slices radiator according to claim 4 is characterized in that: the structure of the groove in described two groups of grooves is all identical, and the interval of adjacent two grooves equates in same group of groove.
6. fin slices radiator according to claim 3 is characterized in that: two diagonal positions of the upper surface (311) of the pedestal (31) of described fin slices radiator (3) also have groove (43), and above-mentioned two grooves are long diagonal grooves (43).
7. fin slices radiator according to claim 6, it is characterized in that: it is identical with the quantity of perpendicular groove (42) that the pedestal (31) of described fin slices radiator (3) is gone up horizontal groove (41), and the spacing of adjacent two horizontal grooves (41) equates that the spacing of adjacent two perpendicular grooves (42) equates; Horizontal groove in one group of groove under the described horizontal groove (41), in the middle of being positioned at is positioned at the horizontal position of center line of pedestal (31) upper surface (311), and this horizontal groove (41) is the horizontal groove in center; Perpendicular groove in one group of groove under the described perpendicular groove (42), in the middle of being positioned at is positioned at the vertical position of center line of pedestal (31) upper surface, and this perpendicular groove is the perpendicular groove in center; The perpendicular groove in horizontal groove in described center and center is divided into four equal rectangular areas with the upper surface (311) of pedestal (31), the diagonal positions of each rectangular area also all has groove, these grooves are short diagonal grooves (44), and are positioned at the long diagonal grooves (43) of two short diagonal grooves (44) connection formation of the same diagonal positions of pedestal (31) upper surface (311).
8. fin slices radiator according to claim 7 is characterized in that: described horizontal groove (41) is identical with the structure of perpendicular groove (42), and described long diagonal grooves (43) is identical with the structure of short diagonal grooves (44); And the width of described long diagonal grooves (43) and short diagonal grooves (44), the degree of depth are respectively greater than width, the degree of depth of horizontal groove (41) and perpendicular groove (42).
9. fin slices radiator according to claim 8, it is characterized in that: the width of described horizontal groove (41) and perpendicular groove (42) is 100 μ m～150 μ m, the degree of depth is 20 μ m～50 μ m, the width of described long diagonal grooves (43) and short diagonal grooves (44) is 180 μ m～240 μ m, and the degree of depth is 60 μ m～80 μ m.
10. fin slices radiator according to claim 6, it is characterized in that: horizontal groove (41) and perpendicular groove (42) on the pedestal (31) of described fin slices radiator (3) are one, and described horizontal groove (41) is positioned at the horizontal position of center line of pedestal (31) upper surface (311), is the horizontal groove in center; Described perpendicular groove (42) is positioned at the vertical position of center line of pedestal (31) upper surface, and this perpendicular groove is the perpendicular groove in center; The horizontal groove in described center (41), the perpendicular groove (42) in center and two long diagonal grooves (43) are divided into eight equal right-angled triangle zones with the upper surface (311) of pedestal (31); In each right-angled triangle zone, separate by the angle bisection groove (45) that is positioned at its angular bisector position at each angle and an end of three angle bisection grooves (45) intersects, and is three little delta-shaped regions with this right-angled triangle area dividing.
11. fin slices radiator according to claim 10 is characterized in that: the horizontal groove in described center (41) is identical with the structure of perpendicular groove (42), and the structure of described a plurality of angle bisection grooves (45) is identical, and the structure of described two long diagonal grooves (43) is identical; The width of described long diagonal grooves (43), the degree of depth be respectively greater than width, the degree of depth of angle bisection groove (45), and the width of described angle bisection groove (45), the degree of depth are respectively greater than width, the degree of depth of horizontal groove (41) and perpendicular groove (42).
12. fin slices radiator according to claim 11, it is characterized in that: the width of the perpendicular groove (42) in horizontal groove in described center (41) and center is 100 μ m～150 μ m, the degree of depth is 20 μ m～50 μ m, the width of described angle bisection groove (45) is 180 μ m～240 μ m, the degree of depth is 60 μ m～80 μ m, the width of described long diagonal grooves (43) is 240 μ m～300 μ m, and the degree of depth is 80 μ m～100 μ m.
13. according to claim 5,9 or 12 described fin slices radiators, it is characterized in that: the width of each groove that described pedestal (31) upper surface (311) is provided with is more than 3 times or 3 times of its degree of depth.
14. fin slices radiator according to claim 13 is characterized in that: the upper surface (311) of the pedestal (31) of described fin slices radiator (3) also has the annular groove (46) that is provided with along its edge, is equipped with rubber ring or sealing ring in this annular groove.
15. LED lamp module, it comprises several LED lamps 1, is used to install the heat-conducting substrate (2) and the fin slices radiator (3) of LED lamp, described fin slices radiator (3) comprises pedestal (31) and some fins (32) of plate body, described a plurality of fin (32) is fixed on the surface of pedestal (31), and this surface is the lower surface of pedestal (31); Described heat-conducting substrate (2) be fixedly installed on fin slices radiator (3) pedestal (31) upper surface and be provided with heat-conducting cream (5) between the two; It is characterized in that: the upper surface (311) of described pedestal (31) is roughness.
16. fin slices radiator according to claim 15 is characterized in that: the upper surface of described pedestal (31) is provided with some grooves and/or projection, formation roughness.
17. fin slices radiator according to claim 16, it is characterized in that: described fin slices radiator (3) pedestal (31) is the plate body of rectangle, its upper surface (311) has orthogonal two groups of grooves, two groups of grooves comprise some grooves, and two groups of grooves are parallel with the edge of pedestal (31) respectively, wherein one group is horizontal groove (41), and another group is perpendicular groove (42).
18. fin slices radiator according to claim 17 is characterized in that: the width of described two groups of groove further groove is 100 μ m～300 μ m, and the degree of depth is at 20 μ m～100 μ m.
19. fin slices radiator according to claim 18 is characterized in that: the structure of the groove in described two groups of grooves is all identical, and the interval of adjacent two grooves equates in same group of groove.
20. fin slices radiator according to claim 17 is characterized in that: two diagonal positions of the upper surface (311) of the pedestal (31) of described fin slices radiator (3) also have groove (43), and above-mentioned two grooves are long diagonal grooves (43).
21. fin slices radiator according to claim 20, it is characterized in that: it is identical with the quantity of perpendicular groove (42) that the pedestal (31) of described fin slices radiator (3) is gone up horizontal groove (41), and the spacing of adjacent two horizontal grooves (41) equates that the spacing of adjacent two perpendicular grooves (42) equates; Horizontal groove in one group of groove under the described horizontal groove (41), in the middle of being positioned at is positioned at the horizontal position of center line of pedestal (31) upper surface (311), and this horizontal groove (41) is the horizontal groove in center; Perpendicular groove in one group of groove under the described perpendicular groove (42), in the middle of being positioned at is positioned at the vertical position of center line of pedestal (31) upper surface, and this perpendicular groove is the perpendicular groove in center; The perpendicular groove in horizontal groove in described center and center is divided into four equal rectangular areas with the upper surface (311) of pedestal (31), the diagonal positions of each rectangular area also all has groove, these grooves are short diagonal grooves (44), and are positioned at the long diagonal grooves (43) of two short diagonal grooves (44) connection formation of the same diagonal positions of pedestal (31) upper surface (311).
22. fin slices radiator according to claim 21 is characterized in that: described horizontal groove (41) is identical with the structure of perpendicular groove (42), and described long diagonal grooves (43) is identical with the structure of short diagonal grooves (44); And the width of described long diagonal grooves (43) and short diagonal grooves (44), the degree of depth are respectively greater than width, the degree of depth of horizontal groove (41) and perpendicular groove (42).
23. fin slices radiator according to claim 22, it is characterized in that: the width of described horizontal groove (41) and perpendicular groove (42) is for being 100 μ m～150 μ m, the degree of depth is 20 μ m～50 μ m, the width of described long diagonal grooves (43) and short diagonal grooves (44) is 180 μ m～240 μ m, and the degree of depth is 60 μ m～80 μ m.
24. fin slices radiator according to claim 20, it is characterized in that: (horizontal groove (41) and perpendicular groove (42) on 3 the pedestal (31) are one to described fin slices radiator, and described horizontal groove (41) is positioned at the horizontal position of center line of pedestal (31) upper surface (311), is the horizontal groove in center; Described perpendicular groove (42) is positioned at the vertical position of center line of pedestal (31) upper surface, and this perpendicular groove is the perpendicular groove in center; The horizontal groove in described center (41), the perpendicular groove (42) in center and two long diagonal grooves (43) are divided into eight equal right-angled triangle zones with the upper surface (311) of pedestal (31); In each right-angled triangle zone, separate by the angle bisection groove (45) that is positioned at its angular bisector position at each angle and an end of three angle bisection grooves (45) intersects, and is three little delta-shaped regions with this right-angled triangle area dividing.
25. fin slices radiator according to claim 24 is characterized in that: the horizontal groove in described center (41) is identical with the structure of perpendicular groove (42), and the structure of described a plurality of angle bisection grooves (45) is identical, and the structure of described two long diagonal grooves (43) is identical; The width of described long diagonal grooves (43), the degree of depth be respectively greater than width, the degree of depth of angle bisection groove (45), and the width of described angle bisection groove (45), the degree of depth are respectively greater than width, the degree of depth of horizontal groove (41) and perpendicular groove (42).
26. fin slices radiator according to claim 25, it is characterized in that: the width of the perpendicular groove (42) in horizontal groove in described center (41) and center is 100 μ m～150 μ m, the degree of depth is 20 μ m～50 μ m, the width of described angle bisection groove (45) is 180 μ m～240 μ m, the degree of depth is 60 μ m～80 μ m, the width of described long diagonal grooves (43) is 240 μ m～300 μ m, and the degree of depth is 80 μ m～100 μ m.
27. according to claim 19,23 or 26 described fin slices radiators, it is characterized in that: the width of the groove that described pedestal (31) upper surface (311) is provided with is more than 3 times or 3 times of its degree of depth.
28. fin slices radiator according to claim 27 is characterized in that: the upper surface (311) of the pedestal (31) of described fin slices radiator (3) also has the annular groove (46) that is provided with along its edge, is equipped with rubber ring or sealing ring in this annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207952.7A CN102281745B (en) | 2011-07-25 | 2011-07-25 | Fin radiator and LED (light emitting diode) lamp module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207952.7A CN102281745B (en) | 2011-07-25 | 2011-07-25 | Fin radiator and LED (light emitting diode) lamp module |
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| CN102281745B CN102281745B (en) | 2014-12-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102563504A (en) * | 2012-01-26 | 2012-07-11 | 保定市大正太阳能光电设备制造有限公司 | Solar modular LED street lamp |
| CN105208831A (en) * | 2015-09-24 | 2015-12-30 | 小米科技有限责任公司 | Composite heat conduction structure and mobile device |
| CN106793700A (en) * | 2016-12-29 | 2017-05-31 | 广东美的暖通设备有限公司 | Heat sink assembly, electric-controlled box and refrigeration system for electric-controlled box |
| US20240125464A1 (en) * | 2002-12-09 | 2024-04-18 | Anders Grau SUNDSTRÖM | Heat Dissipation Arrangement for LED Lighting Fixtures |
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| CN1316639A (en) * | 2000-04-05 | 2001-10-10 | 富准精密工业(深圳)有限公司 | Heat sink |
| CN201748299U (en) * | 2010-07-22 | 2011-02-16 | 厦门市朗星节能照明有限公司 | LED (Light Emitting Diode) street lamp |
| CN202172555U (en) * | 2011-07-25 | 2012-03-21 | 广东昭信光电科技有限公司 | Fin radiator and LED lamp module |
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| CN1316639A (en) * | 2000-04-05 | 2001-10-10 | 富准精密工业(深圳)有限公司 | Heat sink |
| CN201748299U (en) * | 2010-07-22 | 2011-02-16 | 厦门市朗星节能照明有限公司 | LED (Light Emitting Diode) street lamp |
| CN202172555U (en) * | 2011-07-25 | 2012-03-21 | 广东昭信光电科技有限公司 | Fin radiator and LED lamp module |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20240125464A1 (en) * | 2002-12-09 | 2024-04-18 | Anders Grau SUNDSTRÖM | Heat Dissipation Arrangement for LED Lighting Fixtures |
| CN102563504A (en) * | 2012-01-26 | 2012-07-11 | 保定市大正太阳能光电设备制造有限公司 | Solar modular LED street lamp |
| CN105208831A (en) * | 2015-09-24 | 2015-12-30 | 小米科技有限责任公司 | Composite heat conduction structure and mobile device |
| CN106793700A (en) * | 2016-12-29 | 2017-05-31 | 广东美的暖通设备有限公司 | Heat sink assembly, electric-controlled box and refrigeration system for electric-controlled box |
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|---|---|
| CN102281745B (en) | 2014-12-17 |
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