CN104990009A - Ceiling lamp - Google Patents
Ceiling lamp Download PDFInfo
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- CN104990009A CN104990009A CN201510420885.5A CN201510420885A CN104990009A CN 104990009 A CN104990009 A CN 104990009A CN 201510420885 A CN201510420885 A CN 201510420885A CN 104990009 A CN104990009 A CN 104990009A
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- heat
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- conducting layer
- substrate
- lamp
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
- F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a ceiling lamp. The ceiling lamp comprises a lamp base, a lampshade, a lamp body and a heat conduction device. The lamp base comprises an installing face, a supporting wall and a bottom plate which are all integrally formed. The installing face, the supporting wall and the bottom plate are connected, so that a cooling cavity is formed. A plurality of ventilation ports are formed on the supporting wall. The installing face extends along the radial outer side of the installing face to form a buckling part. The lampshade is buckled to the buckling part of the lamp base. The lamp body comprises a substrate, LED lamp beads and connecting pieces. The substrate is installed on the installing face. The LED lamp beads are sequentially connected through the connecting pieces and arranged on the substrate. A cooling layer is arranged on the surface of the substrate. The heat conduction device is arranged in the cooling cavity. The heat conduction device comprises a heat conduction plate and cooling fins. The heat conduction plate is connected to the installing face in an abutting mode and provided with a plurality of channels. Each channel is aligned with the corresponding ventilation port of the supporting wall. The cooling fins are connected to the heat conduction plate. The cooling layer and the heat conduction device of the substrate are used for cooling the ceiling lamp, the cooling efficiency is improved due to two-way cooling of the cooling layer and the heat conduction device, and the service life of the ceiling lamp is prolonged.
Description
Technical field
The present invention relates to technical field of heat dissipation, particularly relate to ceiling lamp.
Background technology
What LED technology was just being maked rapid progress is improving, its luminous efficiency is obtaining surprising breakthrough, price is also in continuous reduction, along with the large-scale promotion of LED technology, LED substitutes traditional fluorescent lamp and incandescent lamp gradually in routine use, it is low that LED has energy consumption, life-span is long, the advantage of environmental protection, but LED also has very important defect, a large amount of heat can be sent during its work, as radiating effect is not good, then significantly will reduce the life-span, therefore, in order to extend the service life of LED further, reduce the use cost of LED, require that LED must possess splendid heat dispersion.
Summary of the invention
Based on this, be necessary, for the not good defect of existing LED radiating effect, to provide a kind of LED of excellent in heat dissipation effect, effectively improve the service life of LED.
A kind of ceiling lamp, is characterized in that, comprising:
Lamp socket, described lamp socket comprises integrated installed surface, supporting walls and base plate, and described installed surface, supporting walls are connected with base plate, forms a heat dissipation cavity, and described supporting walls offers some ventilating openings, and described installed surface radially outside extends to form buckling parts;
Lampshade, described lampshade is fastened on the buckling parts of described lamp socket;
Lamp body, described lamp body comprises substrate, LED lamp bead and connector, and described substrate is installed on described installed surface, and described LED lamp bead is connected successively by connector and is arranged at described substrate, and the surface of described substrate is provided with heat dissipating layer;
Heat-transfer device, described heat-transfer device is arranged in described heat dissipation cavity, described heat-transfer device comprises heat-conducting plate and fin, described heat-conducting plate is connected to described installed surface, described heat-conducting plate has some passages, passage described in each aligns with ventilating opening described in of described supporting walls respectively, and described fin is connected to described heat-conducting plate.
In one embodiment, described lampshade extends to form support portion along the radially inner side of its opening part, and described support portion abuts and is fastened on described buckling parts.
In one embodiment, described buckling parts has a rotary buckle, the spill spin block that described rotary buckle comprises fixed axis and rotates around described fixed axis, and described spill spin block is connected to the support portion of described lampshade.
In one embodiment, described ventilating opening is set to square.
In one embodiment, described ventilating opening is set to circle.
Above-mentioned ceiling lamp, the heat dissipating layer of substrate and heat-transfer device, by dispelling the heat to ceiling lamp, by the bidirectional cooling of heat dissipating layer and heat-transfer device, improve radiating efficiency, extend the service life of ceiling lamp.
Accompanying drawing explanation
Fig. 1 is the perspective exploded view of the ceiling lamp of one embodiment of the invention;
Fig. 2 is the structural representation of the lamp body of the ceiling lamp of one embodiment of the invention;
Fig. 3 is the structural representation of the lamp body of the ceiling lamp of another embodiment of the present invention;
Fig. 4 is the cross-sectional view of the lamp socket of one embodiment of the invention;
Fig. 5 is the cross-sectional view of the heat-transfer device of one embodiment of the invention;
Fig. 6 is the cross-sectional view of the lamp socket of another embodiment of the present invention;
Fig. 7 is a direction structure schematic diagram of the lamp socket of one embodiment of the invention.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Better embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make to disclosure of the present invention understand more thorough comprehensively.
It should be noted that, when element is called as " being arranged at " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe concrete embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, it is the ceiling lamp 10 of a preferred embodiment of the present invention, comprising: lamp socket 100, lampshade 200, lamp body 300, heat-transfer device 400 and radiating piece 500;
Please also refer to Fig. 4, described lamp socket 100 comprises integrated installed surface 110, supporting walls 120 and base plate 130, described installed surface 110, supporting walls 120 are connected with base plate 130, and inner formation heat dissipation cavity 190, described supporting walls 120 offers some ventilating openings 121, and described installed surface 110 radially outside extends to form buckling parts 111;
Described lampshade 200 is fastened on the buckling parts 111 of described lamp socket 100;
Described lamp body 300 comprises substrate 310, LED lamp bead 320 and connector 330, and described substrate 310 is installed on described installed surface 110, and described LED lamp bead 320 is connected successively by connector 330 and is arranged at described substrate 310;
As shown in Figure 4, described heat-transfer device 400 is arranged in described heat dissipation cavity 190, described heat-transfer device 400 comprises heat-conducting plate 410 and fin 420, described heat-conducting plate 410 is connected to described installed surface 110, described heat-conducting plate 410 has some passages 430, passage 430 described in each aligns with ventilating opening 121 described in of described supporting walls 120 respectively, i.e. the corresponding ventilating opening of each passage, and described fin 420 is connected to described heat-conducting plate 410;
Described radiating piece 500 is arranged in described base plate 130, and be arranged in described heat dissipation cavity 190 at least partly, in embody rule, such as, one end of described radiating piece 500 is arranged in heat dissipation cavity 190 through described base plate 130, the other end exposes to described base plate 130 and is arranged in wall, is discharged by the heat in heat dissipation cavity 190 by wall; And for example, described radiating piece 500 one end is arranged in heat dissipation cavity 190 through described base plate 130, and the other end exposes to described base plate 130 and contacts with extraneous air, and the heat in heat dissipation cavity 190 is derived by air by radiating piece 500.
Heat-transfer device 400 can absorb the heat of lamp body 300 effectively, the heat of absorption is concentrated by heat-conducting plate 410, and by passage 430, heat is discharged, on the other hand, the fin 420 be connected with heat-conducting plate 410 increases area of dissipation, the radiating piece 500 be connected with fin 420 improves the radiating efficiency of fin 420 further, when installing and using, can radiating piece 500 be installed in wall, heat can be delivered to wall by radiating piece 500, the heat of ceiling lamp 10 is distributed further, improves radiating efficiency, make better heat-radiation effect.
Such as, described radiating piece 500 is radiating tube, radiating tube respectively, heat dissipation cavity 190 extraneous air inner with heat dissipation cavity 190 is communicated with, radiating tube can make the air of the hot-air in heat dissipation cavity 190 and heat dissipation cavity 190 outside carry out circulating, exchanging, and meanwhile, the heat of heat dissipation cavity 190 can be delivered to outside by radiating tube, such as, described radiating tube is heat dissipation copper pipe, and heat dissipation copper pipe has good heat conductivility, can be derived by the heat in heat dissipation cavity 190 fast.
In order to make the heat of heat-conducting plate 410 more concentrated with discharge more in an orderly manner, as Fig. 4, shown in Fig. 5, described heat-conducting plate 410 inside has thermal conductive cavity 419, described thermal conductive cavity 419 is communicated with described passage 430, thermal conductive cavity 419 can make heat can focus on thermal conductive cavity 419 from heat-conducting plate 410 rapidly, the hot-air concentrated is discharged to outside ventilating opening 121 by thermal conductive cavity 419 via passage 430, such as, described thermal conductive cavity 419 is arranged at the middle part of described heat-conducting plate 410, make hot-air can concentrate on thermal conductive cavity 419 more uniformly, such as, described thermal conductive cavity 419 shape is circular, more be conducive to concentrating of heat, multiple passage 430 is the circle distribution of radiation around described thermal conductive cavity 419, like this, hot-air just can be discharged from multiple directions, thus avoid hot-air to block, and cause discharging not in time.
Such as, described ventilating opening 121 is set to square, then passage 430 be set to mate with ventilating opening 121 square, and for example, described ventilating opening 121 is set to circle, then passage 430 is set to the circle of mating with ventilating opening 121.
In one embodiment, described heat-conducting plate 410 has first surface and second surface, described first surface is connected to described installed surface 110, described fin 420 is connected to described second surface, like this, the heat of lamp body 300 on installed surface 110 can be delivered to rapidly on fin 420 by heat-conducting plate 410, and heat can be discharged fast.
For strengthening the illuminating effect of LED, such as, as shown in Figure 3, described LED lamp bead 320 circularizes connection, such as, in order to strengthen brightness of illumination further, and several annular concentric of described LED lamp bead 320 one-tenth, and for example, as shown in Figure 2, described LED lamp bead 320 one-tenth radiation connects, such as, described LED lamp bead 320 is connected multiple radioactive ray, multiple radioactive ray are uniformly distributed in the middle part of substrate 310, the light that such lamp body 300 sends is more even, interact for avoiding heat between LED lamp bead 320, angle between multiple radioactive ray is 45 °, the spacing of described LED lamp bead 320 is set to 3cm-5cm, preferably, the spacing of described LED lamp bead 320 is set to 4cm, like this, heat between LED lamp bead 320 can be made not affect mutually, again can not be excessive and illuminating effect is deteriorated due to spacing between LED lamp bead 320.
Described connector 330 is wire, as plain conductor, it is such as copper conductor, aluminium alloy conductor, plain conductor outer cladding one deck insulating cement, such as, in order to make lamp body 300 structure more simple, and better heat-radiation effect, as Fig. 1, shown in Fig. 2, described connector 330 is aluminum alloy bar, described aluminum alloy bar is arranged on substrate 310 ringwise, or, be arranged on substrate 310 in radiation, aluminum alloy bar has good electric conductivity and thermal diffusivity, leak electricity for avoiding aluminum alloy bar and cause short circuit, described aluminum alloy bar surface is coated with one deck insulating barrier, described insulating barrier comprises resin, described vertically in be coated with titanium dioxide, aluminium oxide, zirconia, zinc oxide, at least one in aluminium hydroxide, described titanium dioxide, aluminium oxide, zirconia, zinc oxide, aluminium hydroxide is that threadiness is distributed in resin, described resin comprises each component of following mass parts:
Acrylic resin 2.5 parts ~ 2.7 parts, polyether resin 0.5 part ~ 0.9 part, 2.0 parts ~ 2.5 parts, mylar, polyurethane resin 1.6 parts ~ 1.8 parts, fluoro-base resin 0.6 part ~ 0.8 part, polyesteramide resin 0.6 part ~ 1.0 parts, 0.8 part ~ 1.2 parts, phenolic resins, epoxy resin 0.6 part ~ 0.9 part and silicon-Ji resin 0.6 part ~ 0.8 part.
Wherein acrylic resin, polyether resin, mylar, polyurethane resin, fluoro-base resin, polyesteramide resin, phenolic resins, epoxy resin and silicon-Ji resin have good insulating properties, there is good non-oxidizability, heat resistance and wearability simultaneously, at Long-Time Service under high-temperature severe environment, the service life of insulating barrier can be ensure that.
Titanium dioxide, aluminium oxide, zirconia, zinc oxide, aluminium hydroxide have certain electric conductivity, but in the present embodiment, titanium dioxide, aluminium oxide, zirconia, zinc oxide, hydrogen are coated in resin, above-mentioned material is avoided to conduct electricity, and titanium dioxide, aluminium oxide, zirconia, zinc oxide, aluminium hydroxide effectively can improve insulating barrier flexibility, titanium dioxide, aluminium oxide, zirconia, zinc oxide, aluminium hydroxide have good thermal conductivity, make insulating barrier have good heat conductivility.
Use the insulating barrier of above-mentioned component, have good insulating properties, and to have be well radiating effect, the high temperature produced after can effectively avoiding aluminum alloy bar to conduct electricity makes insulating barrier burn, and causes the accident.During use, aluminum alloy bar is connected with voltage-stablizer, and aluminum alloy bar is the illuminalive power-supply of LED lamp bead 320.
Particularly, described connector 330 is fixedly connected with described substrate 310 by screw, and for avoiding screw electric impact lamp body 300 to work, such as, described screw is plastic screw; Be easy to make connector 330 install, described connector 330 is buckled on described substrate 310, such as, some mounting grooves offered by substrate 310, connector 330 has bent fastening piece, during installation, fastening piece is inserted mounting groove, and bends fastening piece, make connector 330 be fastened on substrate 310, make connector 330 be convenient to installation and removal, reduce installation cost.
Such as, particularly, described substrate 310 is fixedly connected with described installed surface 110 by screw.
In order to strengthen radiating effect further, fast the heat of lamp body 300 is derived, layer of silica gel is provided with between described substrate 310 and described installed surface 110, described layer of silica gel has good heat conductivility, rapidly the heat that LED lamp bead 320 on substrate 310 sends can be delivered to installed surface 110 by layer of silica gel, and then absorb heat by heat-conducting plate 410, heat is distributed, described layer of silica gel thickness is set to 1.2mm ~ 1.8mm, specifically, the too thick heat transference efficiency that easily causes of layer of silica gel thickness reduces, the too thin gap cannot fully filled up between substrate 310 and described installed surface 110 of layer of silica gel thickness, cause heat transference efficiency not high equally, preferably, described layer of silica gel thickness is 1.5mm.Like this, can either conduct heat rapidly, be unlikely to again easily to cause heat transference efficiency to reduce because layer of silica gel is too thick.
Firmly be fixed on aluminum alloy bar to make LED lamp bead 320, described LED lamp bead 320 is welded on described aluminum alloy bar, welding makes LED lamp bead 320 1 aspect firmly be fixed on aluminum alloy bar, achieves the electrical connection of LED lamp bead 320 and aluminum alloy bar on the other hand.
For improving the heat exchanger effectiveness of described heat-conducting plate 410 and described fin 420 further, improve radiating efficiency, described fin 420 is inserted in described heat-conducting plate 410, such fin 420 can fully contact with heat-conducting plate 410, absorb the heat of described heat-conducting plate 410, heat distributes after absorbing the heat of heat-conducting plate 410 by fin 420, thus the heat of lamp body 300 can be discharged rapidly, such as, the ratio that the part that described fin 420 is inserted in described heat-conducting plate 410 and described fin 420 are arranged on the part of heat-conducting plate 410 outside is 1:2, namely fin 420 heating surface area is 1:2 with the ratio of area of dissipation, radiating efficiency can be made higher, ensure the heat exchanger effectiveness of heat-conducting plate 410 and fin 420 simultaneously.
Specifically, described fin 420 is vertically inserted in described heat-conducting plate 410, be arranged in parallel between fin 420, in order to increase described fin 420 and the contact area of described heat-conducting plate 410, improve heat exchanger effectiveness, described fin 420 tilts to be inserted in described heat-conducting plate 410, such as, inclination angle between described fin 420 and described heat-conducting plate 410 is 20 ° ~ 60 °, and preferably, the inclination angle between described fin 420 and described heat-conducting plate 410 is 40 °.
In one embodiment, as shown in Figure 4, described passage 430 is horizontally disposed with, and such as, described passage 430 is horizontally disposed with around described thermal conductive cavity 419, is convenient to hot-air and is discharged by passage 430 rapidly, very fast airflow speed, improves heat exchanger effectiveness, and for example, in order to increase the contact area of heat-conducting plate 410 and air, make exchange heat more comprehensively, as shown in Figure 6, described passage 430 has kink 431, such as, described passage 430 has kink 431 in the horizontal direction, or, described passage 430 in the vertical direction has kink 431, the kink 431 of passage 430 makes passage 430 bend in the horizontal direction with on vertical direction, the passage 430 with kink 431 adds the length of passage 430, add the contact area of heat-conducting plate 410 inside and air, add the total amount of heat exchange, make better heat-radiation effect.
Specifically, the kink 431 of passage 430 can increase the contact area of heat-conducting plate 410 and air, but kink 431 makes air passage rates decline, radiating effect is improved not obvious, for strengthening air passage rates further, referring again to Fig. 6, described passage 430 has the kink 431 of circular arc, the kink 431 of circular arc makes air circulation more smooth, accelerate air passage rates, heat-conducting plate 410 and the contact area of air can be increased, also make arriving of air passage rates promote, further increase heat exchanger effectiveness; Such as, in order to further increase the contact area of heat-conducting plate 410 and air, described passage 430 inside has curved surface ripple, described curved surface ripple adds the area of passage 430 inwall, heat-conducting plate 410 is increased with the contact area of air, strengthens the heat exchange effect of heat-conducting plate 410 and air further.In order to accelerate air circulation, and for example, described passage 430 inside arranges mini-fan.
For improving radiating efficiency further, such as, thermistor is set, described thermistor is arranged in heat-conducting plate 410, and triode and wind wheel are set, wind wheel is arranged in thermal conductive cavity 419, described thermistor is connected with the base stage of triode, the grounded emitter of triode, the colelctor electrode of triode is connected with wind wheel, the wind wheel other end is connected with power supply, when temperature is raised, the resistance of thermistor rises, the voltage at thermistor two ends also rises thereupon, when triode punctures by voltage rise, wind wheel starts, hot-air in thermal conductive cavity 419 is discharged by passage 430 rapidly, improve radiating efficiency.
As illustrated in fig. 4 or 6, described heat-conducting plate 410 comprises the first heat-conducting layer 411 connected successively, second heat-conducting layer 412 and the 3rd heat-conducting layer 413, described first heat-conducting layer 411 is connected to described installed surface 110, described fin 420 is connected to described 3rd heat-conducting layer 413, described first heat-conducting layer 411 is connected with installed surface 110, described 3rd heat-conducting layer 413 is connected with fin 420, such as, first heat-conducting layer 411, second heat-conducting layer 412 and the 3rd heat-conducting layer 413 are by integrally forging connection, such as, first heat-conducting layer 411, second heat-conducting layer 412 and the 3rd heat-conducting layer 413 are by being welded to connect.
Such as, described first heat-conducting layer 411 comprises each component of following mass parts:
Copper 85 parts ~ 90 parts, 3 parts ~ 3.5 parts, aluminium, 2 parts ~ 2.5 parts, magnesium, 0.5 part ~ 0.8 part, nickel, iron 0.3 part ~ 0.5 part, vanadium 2.5 parts ~ 4.5 parts, 0.2 part ~ 0.4 part, manganese, titanium 0.6 part ~ 0.8 part, chromium 0.7 part ~ 0.8 part, vanadium 0.6 part ~ 0.8 part, silicon 1.2 parts ~ 15 parts and Graphene 0.5 part ~ 2 parts.
First, what above-mentioned first heat-conducting layer 411 can make the first heat-conducting layer 411 containing the copper (Cu) of 85 parts ~ 90 parts has the energy that absorbs heat preferably.When the mass parts of copper is 85 parts ~ 90 parts, the coefficient of heat conduction of the first heat-conducting layer 411 can reach more than 355W/mK, rapidly the heat that ceiling lamp 10 produces can be siphoned away, and then be dispersed in the structure of the first heat-conducting layer 411 entirety with making even heat, to prevent from the contact position of heat between lamp body 300 and the first heat-conducting layer 411 accumulates, cause the generation of hot-spot phenomenon.And the density of the first heat-conducting layer 411 is less than the density of fine copper, effectively can alleviate the weight of the first heat-conducting layer 411 like this, is more conducive to manufacture is installed, also greatly reduces cost simultaneously.Wherein, the coefficient of heat conduction is defined as: per unit length, every K, can transmit the energy of how many W, unit is W/mK, and wherein " W " refers to thermal power unit, and " m " represents long measure rice, and " K " is absolute temperature units, the larger explanation heat absorption capacity of this numerical value is better.In addition, by adding the Graphene of 0.5 part ~ 2 parts, can effectively improve its coefficient of heat conduction, and then improve the heat absorption capacity of described first heat-conducting layer 411.
Secondly, the first heat-conducting layer 411 containing mass parts be 3 parts ~ 3.5 parts aluminium, 2 parts ~ 2.5 parts magnesium, 0.5 part ~ 0.8 part nickel, the iron of iron 0.3 part ~ 0.5 part, the vanadium of 2.5 parts ~ 4.5 parts, the manganese of 0.2 part ~ 0.4 part, the titanium of 0.6 part ~ 0.8 part, the chromium of 0.7 part ~ 0.8 part and 0.6 part ~ 0.8 part vanadium.Relative to fine copper material, the ductility of the first heat-conducting layer 411, toughness, intensity and resistance to elevated temperatures improve all greatly, and not easy-sintering; Like this, the high temperature that just can prevent ceiling lamp 10 from producing causes damage to the first heat-conducting layer 411, further, having good ductility, toughness and intensity also can prevent the first heat-conducting layer 411 be subject to excessive stresses when installing described lamp body 300 and cause distortion.Wherein, the first heat-conducting layer 411 is the nickel (Ni) of 0.5 part ~ 0.8 part containing mass parts, can improve the resistance to elevated temperatures of the first heat-conducting layer 411.And for example, first heat-conducting layer 411 can suppress the first heat-conducting layer 411 grain growth containing the vanadium (V) that mass parts is 1.5 parts ~ 4.5 parts, obtain more tiny grain structure, to reduce the fragility of the first heat-conducting layer 411, improve the mechanical property of the first heat-conducting layer 411 entirety, to improve toughness and intensity.And for example, the first heat-conducting layer 411 is the titanium (Ti) of 0.6 part ~ 0.8 part containing mass parts, can make the crystal grain miniaturization of the first heat-conducting layer 411, to improve the ductility of the first heat-conducting layer 411.
Finally, first heat-conducting layer 411 also comprises the silicon (Si) that mass parts is 1.2 parts ~ 15 parts, when the first heat-conducting layer 411 is containing appropriate silicon, under the prerequisite not affecting the first heat-conducting layer 411 heat absorption capacity, can effectively promote hardness and the abrasion resistance of the first heat-conducting layer 411.But, through repeatedly theory analysis and experiment evidence find, when in the first heat-conducting layer 411, the quality of silicon is too many, such as, when mass percent is more than more than 15 parts, can make the appearance distribution black particles of the first heat-conducting layer 411, and ductility reduces, and is unfavorable for the producing shaped of the first heat-conducting layer 411.
Such as, heat-conducting plate 410 is provided with multiple Rubus Tosaefulins, such as, described first heat-conducting layer 411 is provided with multiple Rubus Tosaefulins, is equiped with cooling fluid, such as in described Rubus Tosaefulins, described cooling fluid is water, and glassware for drinking water has larger specific heat capacity, is natural good conduction material, the radiating efficiency of heat-conducting plate 410 can be improved, and for example, described cooling fluid is ethanol, and ethanol has good heat absorption capacity, make heat-conducting plate 410 can fast endothermic, the heat of lamp body 300 is derived.
Such as, described second heat-conducting layer 412 comprises each component of following mass parts:
Copper 70 parts ~ 75 parts, 25 parts ~ 35 parts, aluminium, 0.6 part ~ 0.9 part, magnesium, 0.1 part ~ 0.4 part, manganese, titanium 0.1 part ~ 0.4 part, chromium 0.1 part ~ 0.2 part, vanadium 0.1 part ~ 0.2 part, silicon 0.5 part ~ 0.7 part and Graphene 0.2 part ~ 0.3 part.
First, above-mentioned second heat-conducting layer 412 is the copper of 70 parts ~ 75 parts and the aluminium of 25 parts ~ 35 parts containing mass parts, the coefficient of heat conduction of the second heat-conducting layer 412 can be made to remain on 310W/mK ~ 340W/mK, to ensure that the heat that the described ceiling lamp 10 absorbed by the first heat-conducting layer 411 produces can be passed to the 3rd heat-conducting layer 413 by the second heat-conducting layer 412 rapidly, and then prevent heat from piling up on the second heat-conducting layer 412, cause hot-spot phenomenon to produce.Relative to prior art, merely adopt price costly and the larger copper of quality, above-mentioned second heat-conducting layer 412 both can ensure fast the heat of heat-sink shell to be passed to the 3rd heat-conducting layer 413, had again lighter weight, was convenient to the advantage that installation is cast, price is cheaper.Meanwhile, relative to prior art, merely adopt the aluminium alloy that radiating effect is poor, above-mentioned second heat-conducting layer 412 has better heat transfer property.
Secondly, by adding the Graphene of 0.2 part ~ 0.3 part, greatly can improve the heat conductivility of described second heat-conducting layer 412, better the heat passed over from the first heat-conducting layer 411 being passed to the 3rd heat-conducting layer 413.
Finally, second heat-conducting layer 412 is the silicon of the magnesium of 0.6 part ~ 0.9 part, the manganese of 0.1 part ~ 0.4 part, the titanium of 0.1 part ~ 0.4 part, the chromium of 0.1 part ~ 0.2 part, the vanadium of 0.1 part ~ 0.2 part and 0.5 part ~ 0.7 part containing mass parts, thus improve mechanical performance and the resistance to elevated temperatures of the second heat-conducting layer 412, as, mechanical performance is including, but not limited to yield strength, tensile strength.Such as, second heat-conducting layer 412 is the magnesium of 0.6 part ~ 0.9 part containing mass parts, the second heat-conducting layer 412 yield strength and tensile strength can be given to a certain extent, due in the fabrication process, need one-body molded for the overall punching press of the second heat-conducting layer 412, this just needs the second heat-conducting layer 412 to have stronger yield strength, in process, be subject to excessive punching press stress to prevent the second heat-conducting layer 412 and produce non-reversible deformation, and then guarantee the proper heat reduction performance of heat sink, such as, described passage 430 runs through and is arranged on the second heat-conducting layer 412, the second heat-conducting layer 412 can be made when carrying out drilling through 430, stronger yield strength and tensile strength make the second heat-conducting layer 412 not easily produce irregular deformation and fracture, processing cost is controlled.When the relative mass of magnesium is too low, as, when mass parts is less than 0.8 part, fully can not guarantee that the yield strength of the second heat-conducting layer 412 meets the demands, but, when the relative mass of magnesium is too high, such as, when mass parts is greater than 1.2 parts, the ductility of the second heat-conducting layer 412 and heat conductivility can be made again to decline rapidly.Such as, the second heat-conducting layer 412 is the iron of 0.2 part ~ 0.8 part containing mass parts, can give the higher resistance to elevated temperatures of the second heat-conducting layer 412 and high temperature resistant mechanical performance, is beneficial to the processing casting of the second heat-conducting layer 412.
Such as, described 3rd heat-conducting layer 413 comprises each component of following mass parts:
90 parts ~ 96 parts, aluminium, silicon 8.5 parts ~ 10.5 parts, 0.5 part ~ 0.7 part, magnesium, copper 1.0 parts ~ 1.5 parts, iron 0.4 part ~ 0.7 part, 0.3 part ~ 0.6 part, manganese, titanium 0.1 part ~ 0.2 part, chromium 0.1 part ~ 0.2 part, vanadium 0.1 part ~ 0.2 part and Graphene 12 parts ~ 15 parts.
First, above-mentioned 3rd heat-conducting layer 413 is the aluminium of 90 parts ~ 96 parts containing mass parts, the coefficient of heat conduction of the 3rd heat-conducting layer 413 can be made to remain on 230W/mK ~ 250W/mK, when the heat of ceiling lamp 10 generation is after the first heat-conducting layer 411 and the heat radiation of the second heat-conducting layer 412 part, when remaining heat passes to the 3rd heat-conducting layer 413,3rd heat-conducting layer 413 can guarantee these remaining heats to be evenly transferred to fin 420, and then prevent heat from piling up on the 3rd heat-conducting layer 413, cause hot-spot phenomenon.
Secondly, by adding the Graphene of 12 parts ~ 15, effectively can improve the heat dispersion of described 3rd heat-conducting layer 413, and then the heat transmitted from described second heat-conducting layer 412 can be delivered on fin 420 rapidly.
Finally, 3rd heat-conducting layer 413 is the vanadium of the silicon of 8.5 parts ~ 10.5 parts, the magnesium of 0.5 part ~ 0.7 part, the copper of 1.0 parts ~ 1.5 parts, the iron of 0.4 part ~ 0.7 part, the manganese of 0.3 part ~ 0.6 part, the titanium of 0.1 part ~ 0.2 part, the chromium of 0.1 part ~ 0.2 part and 0.1 part ~ 0.2 part containing mass parts, greatly can improve the heat dispersion of the 3rd heat-conducting layer 413.Such as, 3rd heat-conducting layer 413 is the silicon of 8.5 parts ~ 10.5 parts and the copper of 1.0 parts ~ 1.5 parts containing mass parts, can guarantee that the 3rd heat-conducting layer 413 has the advantage of good mechanical properties and lighter weight, simultaneously, the heat-conductive characteristic of the 3rd heat-conducting layer 413 can also be improved further, guarantee that the 3rd heat-conducting layer 413 can fall apart by via the after-heat consistent after heat-sink shell and heat-conducting layer transmission further, and then prevent heat from piling up on the 3rd heat-conducting layer 413, cause hot-spot phenomenon.
In order to improve the tensile strength of described 3rd heat-conducting layer 413 further, such as, described 3rd heat-conducting layer 413 also comprises the lead (Pb) that mass parts is 1.0 parts ~ 1.1 parts, when the 3rd heat-conducting layer 413 can improve the tensile strength of the 3rd heat-conducting layer 413 containing the lead of 1.0 parts ~ 1.1 parts, like this, can prevent from striking out radiating fin when to be cast by the 3rd heat-conducting layer 413, namely during laminated structure, pull stress owing to being subject to excessive punching press and rupturing.
In order to improve the high temperature oxidation resistance of described 3rd heat-conducting layer 413 further, such as, described 3rd heat-conducting layer 413 also comprises the niobium (Nb) that mass parts is 0.05 part ~ 0.08 part, when the mass parts of niobium is greater than 0.05 part, greatly can improve the antioxygenic property of the 3rd heat-conducting layer 413, be appreciated that the 413 pairs of high temperature oxidation resistance requirements of the 3rd heat-conducting layer are higher.But, when the mass parts of niobium is greater than 0.08 part, the magnetic of the 3rd heat-conducting layer 413 can be caused sharply to increase, can the miscellaneous part in ceiling lamp 10 be had an impact.
In order to improve the heat dispersion of described 3rd heat-conducting layer 413 further, such as, 3rd heat-conducting layer 413 also comprises the germanium (Ge) that mass parts is 0.05 part ~ 0.2 part, when the mass parts of germanium is greater than 0.05 part, good effect can be played to the raising of the heat dispersion of the 3rd heat-conducting layer 413, but, when the quality accounting of germanium is too much, such as, when the mass parts of germanium is greater than 0.2 part, the brittleness of the 3rd heat-conducting layer 413 can be made again to increase.
In order to improve radiating efficiency further, the surface of described substrate 310 has heat dissipating layer, and the heat dissipating layer on substrate 310 surface is conducive to the heat that LED lamp bead 320 sends and distributes from other direction, is conducive to improving heat emission efficiency, avoids heat build-up.
Such as, described heat dissipating layer comprises each component of following mass parts:
Copper 65 parts ~ 75 parts, 30 parts ~ 35 parts, aluminium, silicon 10.5 parts ~ 11.5 parts, 0.5 part ~ 0.7 part, magnesium, copper 1.0 parts ~ 1.5 parts, iron 0.4 part ~ 0.7 part, 0.3 part ~ 0.6 part, manganese, titanium 0.1 part ~ 0.2 part, chromium 0.1 part ~ 0.2 part, vanadium 0.2 part ~ 0.3 part and Graphene 10 parts ~ 12 parts.
Above-mentioned heat dissipating layer contains the aluminium that mass parts is 65 parts ~ 75 parts, the coefficient of heat conduction of heat dissipating layer can be made to remain on 300W/mK ~ 320W/mK, the heat that LED lamp bead 320 is sent distributes by heat dissipating layer, make heat can simultaneously to the heat dissipating layer transmission of heat-conducting plate 410 and substrate 310, avoid excess calories ground unidirectional delivery, thus cause heat transfer efficiency to reduce.By the heat dissipating layer bidirectional cooling of heat-conducting plate 410 and substrate 310, can further improve radiating efficiency.
In order to further lampshade 200 is firmly arranged on described lamp socket 100, described lampshade 200 radially inner side extends to form support portion, such as, described lampshade 200 extends to form support portion along the radially inner side of its opening part, described support portion abuts and is fastened on described buckling parts 111, in one embodiment, for the ease of the installation and removal of lampshade 200, as shown in Figure 7, buckling parts 111 has a rotary buckle 112, the spill spin block 114 that described rotary buckle 112 comprises fixed axis 113 and rotates around described fixed axis 113, described spill spin block 114 is connected to the support portion of described lampshade 200, during installation, the support portion of lampshade 200 is fastened on the buckling parts 111 of lamp socket 100, reverse described rotary buckle 112, spill spin block 114 is made to be connected on support portion, thus make lampshade 200 be fixedly mounted on described lamp socket 100, during dismounting lampshade 200, only need to reverse described rotary buckle 112 in the other direction, described rotary buckle 112 is made to leave described support portion, support portion is disassembled from buckling parts 111, realize mounting and dismounting described lampshade 200 easily with this.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (5)
1. a ceiling lamp, is characterized in that, comprising:
Lamp socket, described lamp socket comprises integrated installed surface, supporting walls and base plate, and described installed surface, supporting walls are connected with base plate, forms a heat dissipation cavity, and described supporting walls offers some ventilating openings, and described installed surface radially outside extends to form buckling parts;
Lampshade, described lampshade is fastened on the buckling parts of described lamp socket;
Lamp body, described lamp body comprises substrate, LED lamp bead and connector, and described substrate is installed on described installed surface, and described LED lamp bead is connected successively by connector and is arranged at described substrate, and the surface of described substrate is provided with heat dissipating layer;
Heat-transfer device, described heat-transfer device is arranged in described heat dissipation cavity, described heat-transfer device comprises heat-conducting plate and fin, described heat-conducting plate is connected to described installed surface, described heat-conducting plate has some passages, passage described in each aligns with ventilating opening described in of described supporting walls respectively, and described fin is connected to described heat-conducting plate.
2. ceiling lamp according to claim 1, is characterized in that, described lampshade extends to form support portion along the radially inner side of its opening part, and described support portion abuts and is fastened on described buckling parts.
3. ceiling lamp according to claim 2, is characterized in that, described buckling parts has a rotary buckle, the spill spin block that described rotary buckle comprises fixed axis and rotates around described fixed axis, and described spill spin block is connected to the support portion of described lampshade.
4. ceiling lamp according to claim 1, is characterized in that, described ventilating opening is set to square.
5. ceiling lamp according to claim 1, is characterized in that, described ventilating opening is set to circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510420885.5A CN104990009B (en) | 2015-07-16 | 2015-07-16 | Ceiling lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510420885.5A CN104990009B (en) | 2015-07-16 | 2015-07-16 | Ceiling lamp |
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| CN104990009A true CN104990009A (en) | 2015-10-21 |
| CN104990009B CN104990009B (en) | 2018-05-15 |
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Cited By (1)
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| CN110444362A (en) * | 2019-05-29 | 2019-11-12 | 上海辰光医疗科技股份有限公司 | Superconducting magnet energy bleeder |
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| US20120176792A1 (en) * | 2011-01-12 | 2012-07-12 | Kenall Manufacturing | LED Luminaire Tertiary Optic System |
| CN203464097U (en) * | 2013-08-28 | 2014-03-05 | 浙江寰龙电子技术有限公司 | Improved self-heat-dissipating ceiling lamp |
| CN104763954A (en) * | 2015-04-15 | 2015-07-08 | 东莞市闻誉实业有限公司 | Indoor ceiling lamp |
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| US20120176792A1 (en) * | 2011-01-12 | 2012-07-12 | Kenall Manufacturing | LED Luminaire Tertiary Optic System |
| CN202216082U (en) * | 2011-08-03 | 2012-05-09 | 邵武市兴融科技光电制造有限公司 | Light-emitting diode (LED) road lamp |
| CN203464097U (en) * | 2013-08-28 | 2014-03-05 | 浙江寰龙电子技术有限公司 | Improved self-heat-dissipating ceiling lamp |
| CN104763954A (en) * | 2015-04-15 | 2015-07-08 | 东莞市闻誉实业有限公司 | Indoor ceiling lamp |
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| CN110444362A (en) * | 2019-05-29 | 2019-11-12 | 上海辰光医疗科技股份有限公司 | Superconducting magnet energy bleeder |
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