CN106641905A - Down lamp - Google Patents
Down lamp Download PDFInfo
- Publication number
- CN106641905A CN106641905A CN201611076077.2A CN201611076077A CN106641905A CN 106641905 A CN106641905 A CN 106641905A CN 201611076077 A CN201611076077 A CN 201611076077A CN 106641905 A CN106641905 A CN 106641905A
- Authority
- CN
- China
- Prior art keywords
- cavity volume
- light
- down lamp
- diffuser plate
- emitting component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
- F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- 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
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
-
- 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
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
-
- 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
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
Abstract
The invention provides a down lamp, and belongs to the technical field of illumination. The down lamp comprises a plastic shell with an accommodating cavity, and a light-emitting component installed at the bottom of the accommodating cavity, wherein a diffusion plate arranged above the light-emitting component in a covering manner and in sealing connection with the shell is detachably installed in the accommodating cavity; the peripheral surface of the shell is closely coated with an aluminium alloy protection layer; and the aluminium alloy protection layer is prepared from a particle-reinforced aluminium matrix composite material. The down lamp has the advantages of being safe and reliable, good in heat dissipation effect and better in comprehensive performance.
Description
Technical field
The invention belongs to lighting technical field, is related to a kind of Down lamp.
Background technology
Down lamp is a kind of lighting for being embedded into light down-ejection type in ceiling, and its maximum feature exactly can keep building
The entirety for building decoration is unified and perfect, and the perfect unity of furred ceiling art will not be destroyed because of the setting of light fixture.In prior art
Most of cylinder lamp structures design and it is unreasonable, the Down lamp after finished product is second-rate, during use safety it is relatively low and radiate
Effect is undesirable so that bulb inside easily burns out and surrounding is damaged.
In this regard, to solve the deficiency on existing cylinder lamp structure, needing to design a kind of excellent in heat dissipation effect, combination property more preferably
Down lamp.
The content of the invention
The purpose of the present invention is there are the problems referred to above for existing technology, it is proposed that a kind of safe and reliable, radiating effect
Good, combination property more preferably Down lamp.
The purpose of the present invention can be realized by following technical proposal：A kind of Down lamp, including the plastic housing with containing cavity
Body, installed in the light-emitting component of containing cavity bottom, be detachably provided with accommodating intracavity and be located above light-emitting component and and shell
The diffuser plate that body is tightly connected, the outer peripheral face of the housing is closely coated with aluminium alloy protective layer, the aluminium alloy protective layer by
Particle enhanced aluminum-based composite material is made.
As a further improvement on the present invention, the particle enhanced aluminum-based composite material includes that volume ratio is 20-35%'s
Hard abrasive particles, volume ratio are molten by pressure for the alloy matrix aluminum of 40-55% for the ceramic skeleton and volume ratio of 15-30%
Ooze and be composited.
In the present invention, the aluminium alloy protective layer of Down lamp periphery is using the particle enhanced aluminum-based composite material system after improving
Into this particle enhanced aluminum-based composite material, will not be as granule, crystalline substance compared with traditional whisker, granule etc. strengthen aluminum alloy materials
Must enhanced aluminum matrix composite it is the same, reinforcement is present easily extracts from matrix, comes off, and chip formation hard abrasive lacks
Fall into, this composite has higher mechanical strength and toughness.Therefore, the present invention is using by above-mentioned particle reinforced aluminium-based compound
The Down lamp shell structure of aluminium alloy protective layer cladding has more preferably combination property made by material.
As a further improvement on the present invention, containing cavity interior sealing reflector is installed and light-emitting component be located in it is reflective
Bowl bottom middle part, the reflector is located at diffuser plate lower section and is tightly connected with diffuser plate, and the light-emitting component is by pressing plate
It is compressed on the COB integrated optical sources of containing cavity bottom, the transparent setting of the diffuser plate.
As a further improvement on the present invention, containing cavity interior sealing reflector is installed and light-emitting component be located in it is reflective
Bowl bottom middle part, the reflector is located at diffuser plate lower section and is tightly connected with diffuser plate, and the light-emitting component is with surface
The LED integrated optical sources of Mount Device, the transparent setting of the diffuser plate.
As a further improvement on the present invention, the light-emitting component is paster lamp bead, and the diffuser plate is milky diffusion
Plate, is sealed and coated with the reflective sheeting corresponding with light-emitting component in inner walls.
Used as the further improvement of the present invention, reflector inner side is around being provided be engaged with light-emitting component some
The surface area of reflexed light ring, the reflexed light ring close-packed arrays and reflexed light ring from top to bottom successively decreases, and the light-emitting component is located in minimum
The reflexed light ring middle part of surface area.
Used as the further improvement of the present invention, the reflexed light ring is made up of end to end some reflective convex surfaces, each
The reflective convex surface quantity of reflexed light ring is equal, and the surface area of adjacent two reflective convex surface close-packed arrays and reflective convex surface is from top to bottom passed
Subtract.
As another improvement of the present invention, the pressure having for diffuser plate to be compressed on accommodating intracavity is also fixed on housing
Ring, the pressure ring is hermetically connected with the shell.
As a further improvement on the present invention, lower cavity volume and the upper cavity volume above lower cavity volume are offered on housing,
The lower cavity volume is connected with upper cavity volume and constitutes above-mentioned containing cavity, and the lower cavity volume and upper cavity volume set in inverted truncated cone-shaped
Put, the diameter with diameter greater than upper cavity volume lower surface of the upper cavity volume upper surface, the upper cavity volume lower surface and lower cavity volume upper end
Face overlaps, and the light-emitting component is arranged on lower cavity volume bottom, and the reflector is arranged in lower cavity volume, the pressure ring and upper cavity volume
Closely connect and diffuser plate is compressed in upper cavity volume, the diffuser plate lower surface contacts with lower cavity volume.
As a further improvement on the present invention, the alloy matrix aluminum by following mass percent into being grouped into：Si：1.2-
1.8%, Mg：1.5-2.5%, Mn：0.13-0.17%, Cr：0.08-0.22%, Cu：0.11-0.16%, Zn：0.18-
0.22%, Zr：0.12-0.15%, Ti：0.11-0.15%, Sc：0.03-0.05%, rare earth element：0.01-0.02%, surplus
For Al and inevitable impurity element.
The main alloy element of alloy matrix aluminum of the present invention is magnesium and silicon, can form Mg2Si phases, Mg2Si phases are solid-solution in aluminum
In, it is the hardening constituent of aluminium alloy.In addition, the present invention uses pressure infiltration complex technique, silicon addition and Mg can be destroyed
Pellumina, shortens the stage of incubation of infiltration process.And micro manganese is used to neutralize the bad effect of ferrum with chromium, micro copper and zinc is used
In the intensity for improving alloy matrix aluminum, micro zirconium and titanium are used for crystal grain thinning and control recrystallized structure, enable aluminum alloy to have
The performances such as preferable intensity, corrosion resistance.
In addition, the present invention also added micro Sc, the micro Sc and Zr in alloy can be formed just in process of setting
Raw Al3(Sc, Zr), can notable refining alloy as-cast grain, play a part of to aid in crystal grain thinning with control recrystallized structure.And
The secondary Al formed during homogenization3(Sc, Zr) particle can pinning dislocation and sub boundary strongly, effectively suppress Deformation structure again
Crystallization, significantly improves the mechanical property of alloy.
In addition, rare earth element is the elemental composition often added in present alloy modification, can be miscellaneous with crystal grain thinning, purification
Matter, reaches and puies forward heavy alloyed hardness, intensity and other effects.
As a further improvement on the present invention, the pressure limit of the pressure infiltration is 18-25MPa, and temperature is 720-780
℃.The present invention is tightly combined by composite ceramics obtained in pressure infiltration with matrix phase, and border is clearly demarcated, non-porous in interface
The microdefects such as hole, effect is more excellent.
As the further improvement of the present invention, the particle enhanced aluminum-based composite material through Homogenization Treatments, uniformly
It is 580-650 DEG C to change the temperature for processing, and the time is 10-12h.The present invention is obtained after composite by pressure infiltration, Jing Guojun
Homogenize process, the quantity of the phase in alloy matrix aluminum, distribution and size it is further preferred that, alloy rigidity is also of a relatively high.
Used as the further improvement of the present invention, the particle enhanced aluminum-based composite material also enters after Homogenization Treatments
Row solution treatment, the temperature of solution treatment is 650-670 DEG C, and the time is 2-3h.
Used as the further improvement of the present invention, the particle enhanced aluminum-based composite material is also carried out after solution treatment
Ageing Treatment, the temperature of Ageing Treatment is 200-220 DEG C, and the time is 9-12h.
Based on above-mentioned technical proposal, the embodiment of the present invention can at least produce following technique effect：1st, housing is used
Integral structure, is not divided into lamp housing and lampshade, and integral structure layout is compact；And housing made by plastics coordinates aluminium alloy to protect
Sheath, one side aluminium alloy protective layer serves extraneous and housing the effect of isolation so that Down lamp is safe and reliable, the opposing party
The material of dough model material and aluminum selects the heat-sinking capability for greatly improving housing so that the heat loss through radiation ability of housing strengthens, not only
Quickly the light heat of generation of light-emitting component in housing can be transmitted to the outer surface of housing, moreover it is possible to rapidly surface of shell
Heat be dispersed in air, radiating effect is obvious.
2nd, the aluminium alloy protective layer of closure periphery is made using the particle enhanced aluminum-based composite material after improving, this granule
Reinforced aluminum matrix composites, will not be as granule, the aluminium base of whisker reinforcement compared with traditional whisker, granule etc. strengthen aluminum alloy materials
Composite is the same, and reinforcement is present easily extracts from matrix, comes off, the defect of chip formation hard abrasive, this composite wood
Material has higher mechanical strength and toughness, and the present invention is protected using the aluminium alloy by made by above-mentioned particle enhanced aluminum-based composite material
The Down lamp shell structure of sheath cladding has more preferably combination property.
Description of the drawings
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is the structural representation of a preferred embodiment of the present invention.
Fig. 2 is the explosive view of a preferred embodiment of the present invention.
Fig. 3 is the structural representation at another visual angles of Fig. 2.
Fig. 4 is the structural representation of housing in a preferred embodiment of the present invention.
Fig. 5 is the structural representation of reflector in a preferred embodiment of the present invention.
Fig. 6 is the structural representation at another visual angle of reflector shown in Fig. 5.
In figure, 10, housing；11st, containing cavity；111st, lower cavity volume；112nd, upper cavity volume；20th, light-emitting component；30th, diffuser plate；
40th, reflector；41st, reflexed light ring；411st, reflective convex surface；50th, pressing plate；60th, pressure ring.
Specific embodiment
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Lighting used in daily life includes shot-light and Down lamp, and shot-light is a kind of light fixture of height optically focused, it
Light irradiation be have may specify specific objective, shot-light is mainly used in special illumination, such as emphasize certain it is very flavoursome or
Person is that have very much where new meaning.And Down lamp is a kind of light fixture of light fixture relative to common bright dress with more light-gathering, usually
For general lighting or floor light.A kind of Down lamp of present invention protection, it is adaptable to general lighting or floor light.
Existing most of cylinder lamp structure designs are unreasonable, and the Down lamp after finished product is second-rate, safety during use
It is relatively low and radiating effect is undesirable so that bulb inside easily burns out and surrounding is damaged.Therefore, it is related to a kind of ratio
More rational Down lamp is necessary.
As shown in Figures 1 to 4, this Down lamp include the plastic casing 10 with containing cavity 11, installed in the bottom of containing cavity 11
Light-emitting component 20, be detachably provided with containing cavity 11 and be located at light-emitting component 20 top and be tightly connected with housing 10
Diffuser plate 30, the outer peripheral face of housing 10 is closely coated with aluminium alloy protective layer, and aluminium alloy protective layer is by particle reinforced aluminium-based compound
Material is made.
In the present invention, housing 10 has containing cavity 11 and containing cavity 11 is typically equipped with opening, above-mentioned diffuser plate 30
Arrange preferably adjacent to the opening of containing cavity 11, light-emitting component 20 is first filled during installation, then seal installation diffuser plate 30, each part is installed
It is all very convenient with dismantling；Aluminium alloy protective layer is coated with housing 10, structure is slim and graceful and plasticity is strong.
In the market the housing 10 of most of Down lamps is made up of lamp housing and lampshade, installs comparatively laborious being also easy to Lou
Light；And untouchable, untouchable Down lamp low price is coated outside lamp housing, but be not durable, life-time service gets off to get rusty easily, corruption
Erosion, affects light fixture normally to use and outward appearance.
In an initial condition, housing 10 uses integral structure to this Down lamp, is not divided into lamp housing and lampshade, overall
Topology layout is compact；And housing 10 made by plastics coordinates aluminium alloy protective layer, one side aluminium alloy protective layer to serve isolation
The effect of extraneous and housing 10 so that Down lamp is safe and reliable, the material of another aspect plastics and aluminum selects to greatly improve
The heat-sinking capability of housing 10 so that the heat loss through radiation ability of housing 10 strengthens, can not only quickly light-emitting component in housing 10
The 20 luminous heats for producing are transmitted to the outer surface of housing 10, moreover it is possible to rapidly the heat on the surface of housing 10 is dispersed into air
In, radiating effect is obvious.
This cylinder lamp structure is compact and luminous flux is high, and light fixture is made of the Down lamp, installs easily and occupancy occupies a narrow space, overall cylinder
Lamp is handsome in appearance, generous, durable in use, is generally had no problem with more than 5 years.
Further, reflector 40 is installed in the interior sealing of containing cavity 11 and light-emitting component 20 is located in the bottom surface of reflector 40
Middle part, reflector 40 is located at the lower section of diffuser plate 30 and is tightly connected with diffuser plate 30.In the present case, above-mentioned reflector 40 answers face
Arrange towards the opening of containing cavity 11, reflector 40, diffuser plate 30, the three of housing 10 are tightly connected.When Down lamp is started working, light unit
The light that part 20 sends is reflected by reflector 40 and converged on the face of diffuser plate 30, is concurrently dissipated to so as to form light beam convergence
Surrounding.
It is preferred that the material of the diffuser plate 30 in this case is PC plastics and to be set to disc, such diffuser plate 30 and reflector
40 coordinate even closer so that with the sealing of reflector 40 more preferably, diffuser plate 30 is consolidated with housing 10 for the lower surface of diffuser plate 30
It is fixed firm and can avoid light leak, can avoid during Down lamp installation process either use due to vibrated or hit
Hit and so that diffuser plate 30 comes off.
Light-emitting component 20 is the COB integrated optical sources that the bottom of containing cavity 11 is compressed on by pressing plate 50, and diffuser plate 30 is transparent
Arrange.COB integrated optical sources are exactly conductive by bare chip or non-conductive adhesive is sticked on interconnection substrates, then carry out wire bonding
Realize its electrical connection.COB integrated optical sources have can freely arrange in pairs or groups and combine, easy to assembly, reliability is high, without dead lamp, without speckle,
Luminous uniform, soft light, free from glare, the features such as eyes, color rendering index height, high, safe and reliable light efficiency, environmental protection is not hindered.
Using COB integrated optical sources, reflector 40, transparent diffuser plate 30 assembled scheme so that overall Down lamp have illumination
The features such as effect is good, class is high-end.
Above-mentioned pressing plate 50 is by COB integrated optical sources compacting (withholding) in the bottom of containing cavity 11, preferred pressing plate 50 and reflector 40
It is tightly connected, reflector 40 can be made to contact with pressing plate 50, it is to avoid the formation in gap, when COB integrated optical sources are luminous, it can be complete
Portion is irradiated in reflector 40, and Jing reflectors 40 are projected, and so as to reduce light loss, improve amount of light.
After pressing plate 50 is withheld in COB integrated optical sources, COB integrated optical sources can be quickly fixed so as to fixed, moreover it is possible to
Protection stannum point, effectively prevents the appearance of short circuit phenomenon.In addition, the requirement in order to install and going out light, different COB integrated optical sources
Can be good with same pressing plate 50, the interchangeability of light-emitting component 20.
Additionally, the embodiment that other two kinds of light-emitting components 20 are additionally provided in this case：One of which light-emitting component 20
Embodiment is described below：Reflector 40 is installed in the interior sealing of containing cavity 11 and light-emitting component 20 is located in the bottom surface of reflector 40
Middle part, reflector 40 is located at the lower section of diffuser plate 30 and is tightly connected with diffuser plate 30, and light-emitting component 20 is with surface mount device
The LED integrated optical sources of part, the transparent setting of diffuser plate 30.
Above-mentioned LED integrated optical sources use the LED light source structure of similar COB integrated optical sources, but are not real COB
Integrated optical source (i.e. the integrated area source of high power), it is the imitative COB light source with surface mount device (i.e. SMD diffusion shells).Send out
Optical element 20 adopts LED integrated optical sources, and corresponding diffuser plate 30 is also configured as into transparent diffuser plate 30, LED integrated optical sources ratio
The light that common bulb sends is apparent bright, good illumination effect, reliability and safety that Down lamp works.
In addition, LED integrated optical sources compare common illuminating source so that the volume of light-emitting component 20 can be less, enhances
Its installation effect, with energy-saving and environmental protection, shock resistance be good, the low advantage of maintenance cost, while also extending making for light-emitting component 20
Use the life-span.
Using LED integrated optical sources, reflector 40, transparent diffuser plate 30 assembled scheme so that overall Down lamp have illumination
Work well, low production cost, high-end class the features such as.
Here, it is worth mentioning at this point that：The housing 10 of the plastics alclad structure adopted in this case has preferable combination property,
Especially there is higher intensity and preferable corrosion resistance, and perfect heat-dissipating, by itself and COB integrated optical sources, LED integrated optical sources
Cooperate, the service life of Down lamp and light-emitting component 20 can be extended.
The embodiment of another light-emitting component 20 is described below：Light-emitting component 20 selects to be paster lamp bead, corresponding,
Diffuser plate 30 is selected to be milky diffuser plate 30, is sealed and coated with the inwall of housing 10 corresponding with light-emitting component 20 reflective
Paper.It is preferred that reflective sheeting along the neighboring of diffuser plate 30 lay, the light that paster lamp bead is sent through reflective sheeting refraction and reflect
The light Jing milkys diffuser plate 30 for coming smoothly all light-outputs to reach the illuminating effect of high brightness, and also can have
There is the effect of anti-dazzle.Additionally, reflective sheeting is in addition to the reflecting effect that can strengthen light, can also cause the light that Down lamp sends more equal
Even, softness, it is to avoid dark space occur, and cost is cheaper compared with reflector.
Paster lamp bead is the LED of SMD, is exactly the meaning of surface labeling LED, and paster lamp bead is a kind of solid-state
Semiconductor device, it directly can be converted into light electricity, contribute to production efficiency and improve and different facility applications.
After using paster lamp bead as light-emitting component 20, the reflector 40 in the embodiment of above two light-emitting component 20 is
Can save, further save production cost, and cooperate with milky diffuser plate 30, and then cause the illumination of paster lamp bead
Effect is preferable.The material of the diffuser plate 30 in three kinds of embodiments is both preferably PC plastics, and simply the PC in first two embodiment expands
Fall apart and 30 be set to transparent color, the PC diffuser plates 30 in the third embodiment are set to milky.
Using paster lamp bead and the assembled scheme of milky diffuser plate 30 so that overall Down lamp have illuminating effect it is good,
The advantages of cost performance is high.
With reference to shown in Fig. 5 and Fig. 6, it is preferable that the inner side of reflector 40 surround and is provided with multiple with what light-emitting component 20 was engaged
The surface area of reflexed light ring 41, the close-packed arrays of reflexed light ring 41 and reflexed light ring 41 from top to bottom successively decreases, and light-emitting component 20 is located in minimum
The middle part of reflexed light ring 41 of surface area.
I other words, reflexed light ring 41 closely and is covered with the inside of reflector 40 two-by-two so that the luminous energy of light-emitting component 20
Fully reflect away.
It is further preferred that reflexed light ring 41 is made up of end to end multiple reflective convex surfaces 411, adjacent two reflective convex surface
The surface area of 411 close-packed arrays and reflective convex surface 411 from top to bottom successively decreases.And the reflective convex surface of each reflexed light ring 41 is set
411 quantity are equal so that reflector 40 processes convenient, and the refractive direction of light is stablized, and lifts illuminating effect.
The position of reflective convex surface 411 arranges uniform, and the light that light-emitting component 20 sends constantly is reflected by reflective convex surface 411
Go, the light for so sending is not dazzling.Each reflexed light ring 41 (each layer of reflective convex surface 411) quantity is equal, but area not phase
Together, reasonable in design, using the difference of light focusing so that far and near distance can be illuminated well, illuminating effect is preferable.
Certainly, other constituted using the scheme of reflective convex surface 411 by the way of the reflective surface of reflector 40 be also it is feasible,
Repeat no more herein.
The pressure ring 60 having for being compressed on diffuser plate 30 in containing cavity 11, pressure ring 60 and housing are also fixed on the housing 10
10 are tightly connected.Pressing structure is employed many times in the present case so that each parts can be installed on the housing 10 more consolidation, be made
Obtain overall Down lamp fixed, it is ensured that the stability and reliability of work.And the setting of pressure ring 60 also allows for diffuser plate 30
Replacing and installation.
Preferably, lower cavity volume 111 and the upper cavity volume 112 positioned at the top of lower cavity volume 111, lower cavity volume are offered on the housing 10
111 are connected with upper cavity volume 112 and constitute above-mentioned containing cavity 11, and lower cavity volume 111 and upper cavity volume 112 set in inverted truncated cone-shaped
Put, the diameter with diameter greater than the lower surface of upper cavity volume 112 of the upper surface of upper cavity volume 112, the lower surface of upper cavity volume 112 and lower cavity volume 111
Upper surface overlaps.Arranged using the containing cavity 11 that opening is big, inner chamber is little, compact conformation, be easy to the frock of internal each parts,
Also so that the luminous energy of light-emitting component 20 reflects well the external world.
Light-emitting component 20 is arranged on the bottom of lower cavity volume 111, and reflector 40 is arranged in lower cavity volume 111, pressure ring 60 and upper appearance
Chamber 112 closely connects and diffuser plate 30 is compressed in upper cavity volume 112, and the lower surface of diffuser plate 30 contacts with lower cavity volume 111.This
The structure design of sample ensure that well the sealing between each parts so that each parts is completely embedded so that cylinder
Lamp is difficult light leak, it is ensured that luminous efficiency and illumination effect, it also avoid the impurity such as extraneous steam interior further into containing cavity 11
Part is caused to corrode.
The aluminium alloy protective layer in the present invention is further explained below by specific embodiment.
Embodiment 1：
In the present embodiment, aluminium alloy protective layer is by the hard abrasive particles that volume ratio is 20%, the pottery that volume ratio is 30%
Porcelain body frame is composited with the alloy matrix aluminum that volume ratio is 50% by pressure infiltration, and concrete preparation process is as follows：
Melting aluminium liquid, the constituent of aluminium liquid and its mass percent are：Si：1.2%, Mg：1.5%, Mn：0.13%,
Cr：0.22%, Cu：0.11%, Zn：0.22%, Zr：0.15%, Ti：0.11%, Sc：0.03%, rare earth element：0.02%,
Balance of Al and inevitable impurity element.
Using pressure infiltration technology, at a temperature of 18MPa and 780 DEG C, by above-mentioned ceramic skeleton, hard abrasive particles and aluminum
Hydraulic pressure oozes into aluminium alloy protective layer blank.Blank the Homogenization Treatments 12h at 580 DEG C, the solution treatment 2h at 670 DEG C respectively,
Ageing Treatment 9h at 200 DEG C, is obtained final aluminium alloy protective layer.
Embodiment 2：
In the present embodiment, aluminium alloy protective layer is by the hard abrasive particles that volume ratio is 35%, the pottery that volume ratio is 25%
Porcelain body frame is composited with the alloy matrix aluminum that volume ratio is 40% by pressure infiltration, and concrete preparation process is as follows：
Melting aluminium liquid, the constituent of aluminium liquid and its mass percent are：Si：1.8%, Mg：2.5%, Mn：0.17%,
Cr：0.08%, Cu：0.16%, Zn：0.18%, Zr：0.12%, Ti：0.15%, Sc：0.05%, rare earth element：0.01%,
Balance of Al and inevitable impurity element.
Using pressure infiltration technology, at a temperature of 25MPa and 720 DEG C, by above-mentioned ceramic skeleton, hard abrasive particles and aluminum
Hydraulic pressure oozes into aluminium alloy protective layer blank.Blank the Homogenization Treatments 10h at 650 DEG C, the solution treatment 3h at 660 DEG C respectively,
Ageing Treatment 11h at 220 DEG C, is obtained final aluminium alloy protective layer.
Embodiment 3：
In the present embodiment, aluminium alloy protective layer is by the hard abrasive particles that volume ratio is 30%, the pottery that volume ratio is 15%
Porcelain body frame is composited with the alloy matrix aluminum that volume ratio is 55% by pressure infiltration, and concrete preparation process is as follows：
Melting aluminium liquid, the constituent of aluminium liquid and its mass percent are：Si：1.6%, Mg：1.8%, Mn：0.15%,
Cr：0.2%, Cu：0.14%, Zn：0.2%, Zr：0.13%, Ti：0.14%, Sc：0.04%, rare earth element：0.015%, it is remaining
Measure as Al and inevitable impurity element.
Using pressure infiltration technology, at a temperature of 22MPa and 760 DEG C, by above-mentioned ceramic skeleton, hard abrasive particles and aluminum
Hydraulic pressure oozes into aluminium alloy protective layer blank.The blank Homogenization Treatments 11h at 620 DEG C respectively, the solution treatment at 650 DEG C
2.5h, Ageing Treatment 12h at 210 DEG C is obtained final aluminium alloy protective layer.
Aluminium alloy protective layer obtained in above-described embodiment 1-3 is carried out into performance test, test result is as shown in table 1.Wherein,
The condition of wear rate is：Under room temperature, 6N load, 1m/s speed, test specimen slides 2500m.
Table 1：
As known from Table 1, aluminium alloy protective layer of the invention is added after hard abrasive particles and ceramic skeleton, with preferably
Mechanical strength and elongation percentage, the wearability of aluminium alloy protective layer is preferable.
Comparative example 1：
Comparative example 1 is differed only in embodiment 3, and the aluminium alloy protective layer of comparative example 1 is by alloy matrix aluminum and superhard resistance to
Abrasive particle is directly prepared into, without ceramic skeleton.After testing, the ultimate tensile strength of the aluminium alloy protective layer of comparative example 1 is
138MPa, ultimate bending strength is 60MPa, and wear rate is 5.78%, and elongation percentage is 20%.It follows that alloy matrix aluminum is adopted
After being strengthened with ceramic skeleton, performance boost is obvious.
Comparative example 2：
Comparative example 2 is differed only in embodiment 3, and the aluminium alloy protective layer of comparative example 2 is by alloy matrix aluminum and ceramic bone
Frame is directly prepared into, without hard abrasive particles.After testing, the ultimate tensile strength of the aluminium alloy protective layer of comparative example 2 is
142MPa, ultimate bending strength is 57MPa, and wear rate is 7.89%, and elongation percentage is 21%.It follows that alloy matrix aluminum adds
After entering hard abrasive particles, performance boost is obvious.
In addition, this place embodiment is in place of the claimed non-limit of technical scope midrange and in embodiment
The equal replacement of single or multiple technical characteristics is formed new technical scheme in technical scheme, equally all in the present invention
In claimed scope；Simultaneously the present invention program it is all enumerate or unrequited embodiment in, in the same embodiment
Parameters are merely representative of an example (i.e. a kind of feasible scheme) of its technical scheme, and do not exist between parameters
Strict cooperation and qualified relation, wherein each parameter can be replaced mutually when stating without prejudice to axiom and the present invention and asking, especially
Except statement.
Specific embodiment described herein is only explanation for example spiritual to the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications to described specific embodiment or supplement or replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of Down lamp, it is characterised in that：Including the plastic casing with containing cavity, installed in the luminous unit of containing cavity bottom
Part, the diffuser plate for being located above light-emitting component and being hermetically connected with the shell, the housing are detachably provided with accommodating intracavity
Outer peripheral face be closely coated with aluminium alloy protective layer, the aluminium alloy protective layer is made up of particle enhanced aluminum-based composite material.
2. a kind of Down lamp according to claim 1, it is characterised in that：Reflector is installed in containing cavity interior sealing and is lighted
Element is located in reflective bowl bottom middle part, and the reflector is located at diffuser plate lower section and is tightly connected with diffuser plate, described luminous
Element is the COB integrated optical sources that containing cavity bottom is compressed on by pressing plate, the transparent setting of the diffuser plate.
3. a kind of Down lamp according to claim 2, it is characterised in that：The reflector inner side surround and is provided with and light-emitting component
The surface area of some reflexed light rings being engaged, the reflexed light ring close-packed arrays and reflexed light ring from top to bottom successively decreases, the luminous unit
Part is located in the reflexed light ring middle part of minimal surface area.
4. a kind of Down lamp according to claim 3, it is characterised in that：The reflexed light ring is by end to end some reflective convex
Face is constituted, and the reflective convex surface quantity of each reflexed light ring is equal, the surface of adjacent two reflective convex surface close-packed arrays and reflective convex surface
Product is from top to bottom successively decreased.
5. a kind of Down lamp according to Claims 2 or 3 or 4, it is characterised in that：Also fixing on housing has for spreading
Plate is compressed on the pressure ring of accommodating intracavity, and the pressure ring is hermetically connected with the shell.
6. a kind of Down lamp according to claim 5, it is characterised in that：Lower cavity volume is offered on housing and positioned at lower cavity volume
The upper cavity volume of top, the lower cavity volume is connected with upper cavity volume and constitutes above-mentioned containing cavity, and the lower cavity volume and upper cavity volume are in
The truncated cone-shaped put is arranged, the diameter with diameter greater than upper cavity volume lower surface of the upper cavity volume upper surface, the upper cavity volume lower surface
Overlap with lower cavity volume upper surface, the light-emitting component is arranged on lower cavity volume bottom, and the reflector is arranged in lower cavity volume, described
Pressure ring is closely connected with upper cavity volume and diffuser plate is compressed in upper cavity volume, and the diffuser plate lower surface contacts with lower cavity volume.
7. a kind of Down lamp according to claim 1 or 2 or 3 or 4, it is characterised in that：The particle reinforced aluminium-based composite wood
Material includes that the ceramic skeleton and volume ratio that volume ratio is the hard abrasive particles of 20-35%, volume ratio is 15-30% is 40-
55% alloy matrix aluminum is composited by pressure infiltration.
8. a kind of Down lamp according to claim 7, it is characterised in that：The alloy matrix aluminum by following mass percent into
It is grouped into：Si：1.2-1.8%, Mg：1.5-2.5%, Mn：0.13-0.17%, Cr：0.08-0.22%, Cu：0.11-
0.16%, Zn：0.18-0.22%, Zr：0.12-0.15%, Ti：0.11-0.15%, Sc：0.03-0.05%, rare earth element：
0.01-0.02%, balance of Al and inevitable impurity element.
9. a kind of Down lamp according to claim 7, it is characterised in that：The pressure limit of the pressure infiltration is 18-
25MPa, temperature is 720-780 DEG C.
10. a kind of Down lamp according to claim 9, it is characterised in that：The particle enhanced aluminum-based composite material is through equal
Process is homogenized, the temperature of Homogenization Treatments is 580-650 DEG C, and the time is 10-12h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611076077.2A CN106641905A (en) | 2016-11-30 | 2016-11-30 | Down lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611076077.2A CN106641905A (en) | 2016-11-30 | 2016-11-30 | Down lamp |
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| CN106641905A true CN106641905A (en) | 2017-05-10 |
Family
ID=58814864
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
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| CN115789577A (en) * | 2023-01-09 | 2023-03-14 | 深圳新视智科技术有限公司 | High-uniformity high-brightness scattering light source and preparation method thereof |
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