CN102691994B - Lamp radiating module and light fixture - Google Patents
Lamp radiating module and light fixture Download PDFInfo
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- CN102691994B CN102691994B CN201110067057.XA CN201110067057A CN102691994B CN 102691994 B CN102691994 B CN 102691994B CN 201110067057 A CN201110067057 A CN 201110067057A CN 102691994 B CN102691994 B CN 102691994B
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Abstract
Disclosure one lamp radiating module and light fixture, this lamp radiating module comprises: one has the material of first coefficient of heat conduction；And a material with second coefficient of heat conduction；Wherein first coefficient of heat conduction is higher than second coefficient of heat conduction, and the material of the material and tool second coefficient of heat conduction with first coefficient of heat conduction is interleaved with arrangement and surrounds a column.
Description
Technical field
The present invention relates to a kind of light fixture, particularly relate to the radiating module of a kind of light fixture.
Background technology
In the design of light fixture, considering of heat radiation is that the light fixture of an important problem, particularly higher-wattage is easier to exhale substantial amounts of heat energy.Radiating mode generally can be divided into conduction of heat, thermal convection current and heat radiation three class.Heat is mainly conducted to the second temperature place from object the first temperature place by heat exchange pattern by the heat conductive efficiency of material, and its heat transfer efficiency depends on the coefficient of heat conduction of object itself.Thermal convection current usually occurs in when having temperature difference in fluid, flows because the density of the caused fluid of temperature difference is different, and then supervenes the flowing of heat.Heat radiation is different from conduction of heat and thermal convection current, and radiant heat energy system releases with means of electromagnetic waves, therefore without there being brought into physical contact between the first temperature objects and the second temperature system, has not also needed medium between the two.
Generally traditional light fixture is as shown in Figure 1, comprise a base portion 30, there is the function as fixing light fixture, one electrode 31, in order to input power supply needed for light fixture, one light sheds face 20, and in order to make the light that its light source 40 surrounded sends shed, and a radiating module 10 is connected on light and sheds face 20 and base portion 30.Radiating module 10 comprises radiating fin 50, and heat energy is only capable of being reached air about by heat exchange pattern by radiating fin 50, and radiating effect is limited.Generally speaking, radiating fin 50 is generally metallics, but heat dissipation metal fin not only can make light fixture weight be significantly increased, cause the inconvenience of user, and above-mentioned only transmit that single heat exchange pattern dispels the heat be designed as and pursue relatively high cooling efficiency, the mode solving problem is adopt the metal of high coefficient of thermal conductivity, but the more high metal of the coefficient of heat conduction generally its price is more expensive, therefore the usual radiating effect of conventional lamp is limited, light fixture Heavy Weight and expensive.
Summary of the invention
For solving the problems referred to above, the present invention provides a kind of lamp radiating module, comprises: one has the material of first coefficient of heat conduction；And a material with second coefficient of heat conduction；Wherein first coefficient of heat conduction is higher than second coefficient of heat conduction, and the material of tool first coefficient of heat conduction is interleaved with arrangement with the material having second coefficient of heat conduction and surrounds a column.The present invention also provides for a kind of light fixture comprising above-mentioned lamp radiating module.
Accompanying drawing explanation
Graphic in order to promote the understanding of the present invention, the part of this specification.Graphic embodiment coordinates the explanation of embodiment to explain principles of the invention.
Fig. 1 is the schematic diagram of generally traditional light fixture；
Fig. 2 is the schematic diagram of the first embodiment of the present invention；
Fig. 3 is the schematic diagram of the second embodiment of the present invention；
Fig. 4 is the schematic diagram of the third embodiment of the present invention；
Fig. 5 is the schematic diagram of the fourth embodiment of the present invention.
Main element symbol description
10: radiating module
11: there is the material of first coefficient of heat conduction
12: there is the material of second coefficient of heat conduction
110: convection holes
20: light sheds face
30: base portion
40: light source
Detailed description of the invention
The invention discloses and a kind of utilize thermal convection principle to make the light fixture that heat energy is easily taken to from lamp surface in air or fluid.As shown in Figure 2, it shows the lamp radiating module of the present invention and comprises the first embodiment of the light fixture that this radiating module is constituted, wherein light fixture mainly comprises a light and sheds face 20, radiating module 10, base portion 30 and an electrode 31, and radiating module 10 is connected on light and sheds face 20 and base portion 30.Wherein light sheds the transmission substance of a face 20 substantially nearly hemisphere planar, surrounds a light source 40 so that light thus sheds.Light source 40 can be LED source (such as the present embodiment diagram three light emitting diodes of configuration) or traditional light source such as tungsten light source etc., light source 40 is fixed on a light source stationary plane 70, in the present embodiment, light source stationary plane 70 is located substantially at light and sheds face 20 and radiating module 10 joint.Base portion 30 has the function as fixing light fixture, and electrode 31 is in order to provide power supply needed for light fixture.Radiating module 10 is made up of the material with the different coefficient of heat conduction, comprise a material 11, with first coefficient of heat conduction and have the material 12 of second coefficient of heat conduction, wherein first coefficient of heat conduction is higher than second coefficient of heat conduction, and two kinds of material systems are staggered round a central shaft 60, connect and form an outer ring surface and constitute radiating module 10.In the present embodiment, as in figure 2 it is shown, light source 40 comprises three light emitting diodes, arrangement forms a triangle, and the geometric center of this triangle is light source center 41.It is said that in general, aforesaid central shaft 60 is by light source center 41, and substantially just intersect with light source stationary plane 70.Radiating module 10 and the light joint, face 20 that sheds substantially forms a circle with the first diameter in the cross section of vertical center axis 60, and connect along central shaft 60 towards the direction of base portion 30 with base portion 30, and substantially forming a circle with Second bobbin diameter with base portion 30 joint, in the present embodiment, greater diameter than Second bobbin diameter, so the shape that radiating module 10 surrounds is about a tubbiness.First diameter also can be equal to Second bobbin diameter, then it is cylindric that the shape that radiating module 10 surrounds is about one.Additionally, radiating module 10 can also be column, that is radiating module 10 is not limited to above-mentioned circle in the cross section of vertical center axis 60, such as triangle, the polygon such as square, ellipse, even irregular shape also can, and the size of cross sectional shape along this central shaft 60 for fixing or on-fixed.When the heat that light source 40 produces is via the radiating module 10 of heat exchange pattern conduction to periphery, because radiating module 10 is made up of the material with the different coefficients of heat conduction, so at the material 11 of higher first coefficient of heat conduction of the coefficient of heat conduction, its surface temperature is higher；Otherwise, the material 12 of second coefficient of heat conduction that the coefficient of heat conduction is relatively low, its surface temperature is relatively low.And atmospheric density that the higher surface temperature of the material 11 of first coefficient of heat conduction will result in about is relatively low, the atmospheric density that the relatively low surface temperature of the material 12 of second coefficient of heat conduction will result in about is higher.Because air can be flowed to density lower by the higher part of density, this is that atmospheric density difference produces thermal natural convection, therefore, the material of staggered two kinds of different coefficients of heat conduction can cause the ambient air density difference of correspondence, make surrounding air be flowed to the relatively low part of adjacent density by the higher part of density, and this thermal natural convection can improve the radiating effect of light fixture.
With regard to the material of two kinds of different coefficients of heat conduction on shape selects, optional lamellar, even if also the material of two kinds of different coefficients of heat conduction all formed radiating fin form and to the periphery air do and extend, so can increase area of dissipation.Or as shown in this embodiment, only one of which material, such as there is the material 12 of second coefficient of heat conduction, the form air to the periphery of formation radiating fin does and extends, and another kind of material, namely such as there is the material 11 of first coefficient of heat conduction, do not make radiating fin, only it is connected on the material 12 of second coefficient of heat conduction of two adjacent tool radiating fin forms, and substantially smooth on the outer ring surface of foregoing radiating module, and air does not extend to the periphery.This kind of form makes the space in the middle of two adjacent radiating fins relatively large, air along between two adjacent radiating fins during flowing relatively smoothly.
In the selection of material, the material of the first coefficient of heat conduction material 11 and the second coefficient of heat conduction material 12 can be respectively selected from metal, alloy, plastic cement, silica gel, glass.Such as, the first coefficient of heat conduction material 11 can be metal (but for the different metal of the coefficient of heat conduction) from the material of this second coefficient of heat conduction material 12；Or first coefficient of heat conduction material 11 can be alloy (but for the different alloy of the coefficient of heat conduction) from the material of this second coefficient of heat conduction material 12；Also or the first coefficient of heat conduction material 11 be metal, and the second coefficient of heat conduction material 12 is plastic cement.That is, as long as can the two coefficient of heat conduction difference in design.
As shown in Figure 3, it is the second embodiment of the present invention, it is substantially same as first embodiment, but at the present embodiment, the material of two kinds of different coefficients of heat conduction all selects to be formed the form of radiating fin, it addition, the present embodiment also increases the design of convection holes 110 on the radiating fin that the material 11 with first coefficient of heat conduction is formed, form at least one hole penetrating radiating fin.This convection holes not only can increase area of dissipation, it is possible to increases the convection current ability of convection effects and heat radiation fin, and then promotes the radiating effect of light fixture.In addition it is also possible to select to be respectively provided with convection holes on the formed radiating fin of material of two kinds of different coefficients of heat conduction.
As shown in Figure 4, it is the third embodiment of the present invention, it is substantially same as first embodiment, but at the present embodiment, the material of two kinds of different coefficients of heat conduction all forms the form of radiating fin, and the present embodiment selection makes the material 11 with first coefficient of heat conduction form the radiating fin of multi-disc (two panels as shown), and select to make the material 12 with second coefficient of heat conduction form a piece of radiating fin, if therefore with the proportionate relationship of sheet number, be equivalent to the material of two kinds of different coefficients of heat conduction be two than a piece of staggered relation.Additionally, gently towards light, the radiating fin that in the present embodiment, its second coefficient of heat conduction material 12 is formed sheds that face 20 extends and the face 20 that sheds with light contacts, and this second coefficient of heat conduction material 12 is transmission substance (also optional shed face 20 for commaterial with light).Consequently, it is possible to light produced by light source 40, except being shed except face 20 sheds by light, it is possible to through the second coefficient of heat conduction material 12 of thus printing opacity, light is shed, not only can increase thermal convection current effect, it is possible to increase light-emitting area.
As shown in Figure 5, it is the fourth embodiment of the present invention, it is substantially same as the 3rd embodiment of earlier figures 4, and difference is in that in the present embodiment, the radiating fin that its second coefficient of heat conduction material 12 is formed and base portion 30 connect, and base portion 30 is also transmission substance, base portion 30 is also optional is identical material with the second coefficient of heat conduction material 12, so will increase light-emitting area.
From above-described embodiment, in the present invention, no matter select the either or both of which of the first coefficient of heat conduction material 11 and the second coefficient of heat conduction material 12 to form the form of radiating fin, the radiating fin of its formation can be a piece of (proportionate relationship with sheet number, if a piece of radiating fin of each self-forming of the material of two kinds of different coefficients of heat conduction, the material being equivalent to two kinds of different coefficients of heat conduction is a piece of staggered relation of a piece of ratio, as illustrated in the exemplary embodiment of figure 3), the radiating fin of multi-disc can also be formed, as shown in the embodiment of Fig. 4 or Fig. 5, the material 11 of its first coefficient of heat conduction forms the radiating fin of two panels (then with the proportionate relationship of sheet number, be equivalent to the material of two kinds of different coefficients of heat conduction be two than a piece of staggered relation).If each self-forming multi-disc radiating fin of the material of two kinds of different coefficients of heat conduction, with the proportionate relationship of sheet number, then the material being equivalent to two kinds of different coefficients of heat conduction is the relation that multi-disc is interlocked than multi-disc.
Above-described embodiment is only illustrative principles of the invention and effect thereof, not for the restriction present invention.Above-described embodiment all when without prejudice to the know-why of the present invention and spirit, can be modified and change by any persond having ordinary knowledge in the technical field of the present invention.Therefore listed by the scope of the present invention claim as mentioned.
Claims (13)
1. a lamp radiating module, comprises:
There is the material of first coefficient of heat conduction；And
There is the material of second coefficient of heat conduction；Wherein first coefficient of heat conduction is higher than second coefficient of heat conduction, and this material with first coefficient of heat conduction is interleaved with arrangement with this material with second coefficient of heat conduction and surrounds a column, wherein this has the material of first coefficient of heat conduction and has the form that both materials at least one is radiating fin of second coefficient of heat conduction with this, wherein this first coefficient of heat conduction material and this second coefficient of heat conduction material arbitrary or the two be transmission substance, this transmission substance can allow light-output.
2. lamp radiating module as claimed in claim 1, wherein this radiating fin has more than one convection holes.
3. lamp radiating module as claimed in claim 1, wherein this first coefficient of heat conduction material and this second coefficient of heat conduction material are transmission substance, and this transmission substance can allow light thus material derive.
4. lamp radiating module as claimed in claim 1, the wherein radiating fin of arbitrary or the two formation multi-disc of this first coefficient of heat conduction material and this second coefficient of heat conduction material.
5. lamp radiating module as claimed in claim 1, wherein this first coefficient of heat conduction material and this second coefficient of heat conduction material are the form of radiating fin, and this first coefficient of heat conduction material and this second coefficient of heat conduction material with a piece of than a piece of or two interlock than a piece of relation.
6. lamp radiating module as claimed in claim 1, wherein this column is tubbiness or cylindric.
7. lamp radiating module as claimed in claim 1, wherein this first coefficient of heat conduction material comprises metal, and this second coefficient of heat conduction material comprises plastic cement.
8. a light fixture comprises:
Lamp radiating module, it is arbitrary selected from the lamp radiating module described in claim 1～7；
Light source, is placed in this lamp radiating module；And
Light sheds face, connects with one end of this lamp radiating module, in order to make light produced by this light source shed.
9. light fixture as claimed in claim 8, wherein this second coefficient of heat conduction material is transmission substance, and this second coefficient of heat conduction material of part contacts with this light face of shedding.
10. light fixture as claimed in claim 9, also comprises a base portion and connects with the other end of this lamp radiating module, and this second coefficient of heat conduction material of part contacts with this base portion.
11. light fixture as claimed in claim 8, also comprising a base portion and connect with the other end of this lamp radiating module, wherein this second coefficient of heat conduction material is transmission substance, and this second coefficient of heat conduction material of part contacts with this base portion.
12. light fixture as claimed in claim 8, also comprise a light source stationary plane, be located substantially at this light and shed face and this radiating module joint, in order to fix this light source.
13. light fixture as claimed in claim 8, wherein this light source is LED source or tungsten light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110067057.XA CN102691994B (en) | 2011-03-21 | 2011-03-21 | Lamp radiating module and light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110067057.XA CN102691994B (en) | 2011-03-21 | 2011-03-21 | Lamp radiating module and light fixture |
Publications (2)
| Publication Number | Publication Date |
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| CN102691994A CN102691994A (en) | 2012-09-26 |
| CN102691994B true CN102691994B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110067057.XA Active CN102691994B (en) | 2011-03-21 | 2011-03-21 | Lamp radiating module and light fixture |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103939754A (en) * | 2013-01-18 | 2014-07-23 | 合肥杰事杰新材料股份有限公司 | LED lamp and making method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201475949U (en) * | 2009-05-13 | 2010-05-19 | 洋鑫科技股份有限公司 | Illuminating device and combined radiating component thereof |
| TWM396919U (en) * | 2010-07-19 | 2011-01-21 | Daiwei Co Ltd | Structural improvement of lamp |
| EP2295854A1 (en) * | 2009-09-09 | 2011-03-16 | Elements Performance Materials Limited | Heat Dissipating Device for Lighting Devices |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100309671A1 (en) * | 2009-06-09 | 2010-12-09 | Meyer Iv George Anthony | Led lamp heat dissipating module |
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- 2011-03-21 CN CN201110067057.XA patent/CN102691994B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201475949U (en) * | 2009-05-13 | 2010-05-19 | 洋鑫科技股份有限公司 | Illuminating device and combined radiating component thereof |
| EP2295854A1 (en) * | 2009-09-09 | 2011-03-16 | Elements Performance Materials Limited | Heat Dissipating Device for Lighting Devices |
| TWM396919U (en) * | 2010-07-19 | 2011-01-21 | Daiwei Co Ltd | Structural improvement of lamp |
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| CN102691994A (en) | 2012-09-26 |
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