CN103672637A - Novel LED ceiling lamp capable of emitting light evenly and all-directionally - Google Patents
Novel LED ceiling lamp capable of emitting light evenly and all-directionally Download PDFInfo
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Abstract
The invention discloses a novel LED ceiling lamp capable of emitting light evenly and all-directionally. The novel LED ceiling lamp comprises a base plate, a light component and a lamp shade. The light component comprises a radiator, an LED source component and a drive module. The novel LED ceiling lamp is characterized in that the LED source component comprises a circle of a plurality of LED light emitters around the outer end of the radiator, and the LED light emitters are covered with an optical distribution shade allowing main light from the light emitters to emerge to the surrounding. According to the structure, the outer end of the radiator of the ceiling lamp is provided with one circle of LED light emitters, and the LED light emitters are covered with the optical distribution shade which allow the main light from the light emitters to emit to the surrounding; intensity of the light from the light emitters is ingeniously changed through light intensity configuration by the optical distribution shade, the main light is led to emerge to the surrounding prior to being mixed in a lamp cavity and then emerge out of the lamp shade, and accordingly the light can emerge evenly from the middle and surrounding (namely evenly and all-directionally) from the lamp shade of the ceiling lamp, and the cost of the light source component can be effectively reduced.
Description
Technical field
The present invention relates to field of light fittings, particularly a kind of Novel LED ceiling lamp of comprehensive uniformly light-emitting.
Background technology
At present, day by day maturation along with LED technology and illumination market, existing LED structure of ceiling-mounted lamp is generally complicated, most light source and lamp bottom plate of adopting fits together, mainly by lamp bottom plate, dispel the heat, and LED light source distribution loose (babysbreath arrangement mode) or integrated chip mode, the shortcoming of the lamp affixed to the ceiling of this structure is: 1, when light source has been broken, cannot change, whole lamp can only be scrapped, use cost is high; 2. well-known, lamp affixed to the ceiling is the in the situation that of given lampshade, luminous brightness uniformity is decided by the luminous intensity distribution (as shown in Figure 4) of light source, the light source that existing employing integrated chip is made, in the process of using, because of light intensity, mainly concentrate on the middle part of lampshade, marginal ray is dark, thus can not be all-round luminous, and optical effect is very poor; And although the LED light source of babysbreath arrangement mode can be all-round luminous, complex structure, light source cost is higher, has luminous point; 3, radiating effect is bad, service life is short.So existing LED lamp affixed to the ceiling is difficult to meet consumers in general's requirement.
Summary of the invention
The object of the invention is to for above-mentioned existing problems and deficiency, provide a kind of again can be all-round when light source cost is low and middle part uniformly light-emitting, light efficiency high, and good heat dissipation effect, can be convenient for changing again the Novel LED ceiling lamp of comprehensive uniformly light-emitting of optical assembly.
Technical scheme of the present invention is achieved in that
The Novel LED ceiling lamp of comprehensive uniformly light-emitting of the present invention, comprise chassis, optical assembly, lampshade, described optical assembly comprises radiator and LED light source assembly, driver module, be characterized in that described LED light source assembly comprises that a ring is located at some LED illuminators of described radiator outer face, and on described LED illuminator, be covered with the optics light distributing cap that can make the main light intensity of illuminator appear from surrounding.
Wherein the concrete moulding of above-mentioned optics light distributing cap can be determined as required, as above-mentioned optics light distributing cap also can be the hemispherical of top indent or is similar to hemispheric diffuser; Preferred version is that above-mentioned optics light distributing cap is made wall thickness and started toward the hemispherical of surrounding side progressive additive or approximate hemispheric diffuser or for periphery is thick, the irregular semicircular arch shape diffuser of top thin from inner top surface, above-mentioned each LED luminous body position is in the inner chamber below of described diffuser, and the outer end face of optics light distributing cap is flat or approximate flat.This optics light distributing cap is to thicken the configuration change of light intensity by the difference of transmissive wall, after making illuminator pass through diffuser luminous intensity distribution, main light intensity can be partial to surrounding, namely central light strength is not maximum, maximum light intensity appears at place, off-centered side, thereby make lampshade avoid the luminous problem in the center that concentrates on, comprehensively luminous to realize as much as possible side and middle part.And in order to make middle part and the surrounding of lampshade can realize uniformly light-emitting as far as possible, the present invention, after test and improvement many times, specially makes irregular curved-surface structure by the internal chamber wall of optics light distributing cap and outer wall.As the internal chamber wall of above-mentioned optics light distributing cap is made by not isometrical (B2, B3, the B1) circular arc wall of upper, middle and lower segment or three sections not etc. the circular arc wall (A2, A3, A1) of arc angle form and stage casing to the slightly curved irregular curved surface going out of inner chamber, B1 section R=16.5-20.5MM wherein, B2 section R=5.8-9.8 MM, B3 section R=14.8-18.8 MM, the arc angle of A1 is 10 °-13 °, the arc angle of A2 is 73 °-79 °, and the arc angle of A3 is 12 °-18 °.For further strengthening its uniformity of luminance, the outer wall of above-mentioned optics light distributing cap is made irregular that the continuous arc surface (D1, D2, D3, D4) changing of four arcs angle forms, wherein the arc angle of D1 is 6 °-10 °, the arc angle of D2 is 22 °-26 °, the arc angle of D3 is 28 °-32 °, and the arc angle of D4 is 14 °-18 °.This irregularly shaped periphery complementing each other to form by the irregularly shaped and outer wall of light distributing cap inwall is thick, the irregular diffuser of top thin, after making illuminator pass through diffuser luminous intensity distribution, main light intensity can be partial to surrounding, maximum light intensity is appeared at depart from center 50-80 ° to locate, effectively to increase its luminous scope and all luminosity comprehensively.
And above-mentioned optics light distributing cap can be independent separately light distributing cap.For making the convenience of optical assembly assembling and making its structure more reliable, above-mentioned some optics light distributing caps are joined together to form by the ring that is located by connecting integrated with it luminous intensity distribution ring that convenient dress is got.
For making the present invention when reaching surrounding evenly luminous effect, can effectively reduce the cost of light source assembly again, and make its installation more convenient, preferred version is: above-mentioned LED illuminator is LED luminescence chip, above-mentioned LED light source assembly is for by aluminium base and be single-wheel and be arranged in the Luminous Ring that the LED luminescence chip on this aluminium base forms, above-mentioned Luminous Ring is locked on above-mentioned radiator, and above-mentioned luminous intensity distribution ring lock onto in described Luminous Ring and makes optics light distributing cap correspondingly cover on the top of LED illuminator.
For make light fixture use when light source has been broken long afterwards, can change convenient, above-mentioned optical assembly is by being positioned LED light source assembly the outer face of radiator and driven unit being installed on to radiator middle part inner chamber and shape is in aggregates, connection pedestal is installed on above-mentioned chassis, and above-mentioned optical assembly is replaceably installed on described connection pedestal by screw structure.
For making the present invention need to convert different colour temperatures according to using, and light mixing effect is good, and the above-mentioned outer LED illuminator covering under each optics light distributing cap is formed by least two LED luminescence chips with different-colour.
The present invention arranges a circle LED illuminator and on each LED illuminator, to be covered with the structure that can make the optics light distributing cap that the main light intensity of illuminator appears from surrounding owing to adopting on the radiator outer face of lamp affixed to the ceiling, thereby making the light intensity of each illuminator in the present invention is first to pass through the light intensity configuration change of optics light distributing cap, make its main light intensity from surrounding appears, in lamp chamber, carry out again mixed light, and then appeared by lampshade, can luminous (comprehensively luminous) and effectively reduce the object of light source assembly cost to reach the middle part of lamp shade of ceiling lamp and surrounding, effectively solve existing lamp affixed to the ceiling or light intensity and mainly concentrated on the middle part of lampshade, marginal ray is dark, light source assembly is many, the problems such as production cost height.And optics light distributing cap is made to wall thickness from inner top surface, start toward hemispherical or the approximate hemispheric diffuser structure of surrounding side progressive additive and each optics light distributing cap is joined together to form to luminous intensity distribution ring by the ring that is located by connecting integrated with it because the present invention adopts, so not only simple in structure, reliable, comprehensively luminous effective, and optical assembly is easy to assembly.Add the present invention optical assembly by LED light source assembly being positioned to the outer face of radiator and driven unit being installed on to radiator middle part inner chamber and shape is in aggregates, change simple.The present invention is simple in structure, luminous efficiency is high, production cost is low, and replacing light source is convenient, good heat dissipation effect, and it is simply firm to assemble, and both saving resource, reduced production costs, and had improved again productivity ratio.
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing explanation
Fig. 1 is combining structure schematic diagram of the present invention.
Fig. 2 is assembly structure schematic diagram of the present invention.
Fig. 3 is sectional structure schematic diagram of the present invention.
Fig. 4-Fig. 6 is the structure enlarged drawing of luminous intensity distribution ring one cross section in Fig. 3.
Fig. 7 is the brightness uniformity of lampshade and the structural representation of light source light distribution in prior art.
Fig. 8 is the luminous intensity distribution schematic diagram of existing LED light source.
Fig. 9 is the luminous intensity distribution schematic diagram of LED light source assembly in the present invention.
The specific embodiment
As shown in Figure 1-Figure 3, the Novel LED ceiling lamp of comprehensive uniformly light-emitting of the present invention, comprise chassis 1, optical assembly 2, lampshade 3, described optical assembly 2 comprises radiator 21 and LED light source assembly 22, driver module 23, described LED light source assembly 22 comprises that a ring is located at some LED illuminators of described radiator 21 outer faces, and on described LED illuminator, is covered with the optics light distributing cap 24 that can make the main light intensity of illuminator appear from surrounding.Thereby making the light intensity of each illuminator in the present invention is first to pass through the light intensity configuration change of optics light distributing cap 24, make its main light intensity be not concentrate on the top of illuminator but main light intensity from the surrounding of illuminator appears, in lamp chamber, carry out again mixed light, and then appeared by lampshade 3, to reach centre and the surrounding of lamp shade of ceiling lamp 3, can uniformly light-emitting be comprehensive luminous and effective object that reduces light source assembly cost, effectively solve existing lamp affixed to the ceiling or light intensity and mainly concentrated on the middle part of lampshade, marginal ray is dark, light source assembly is many, the problems such as production cost height.Wherein the concrete moulding of above-mentioned optics light distributing cap 24 can be determined as required, as above-mentioned optics light distributing cap 24 be top indent hemispherical or approximate hemispheric diffuser.Preferred version is that above-mentioned optics light distributing cap 24 is made wall thickness and started toward the hemispherical of surrounding side progressive additive or approximate hemispheric diffuser or for periphery is thick, the irregular semicircular arch shape diffuser of top thin from inner top surface, above-mentioned each LED luminous body position is in the inner chamber below of described diffuser, and the outer end face of optics light distributing cap 24 is flat or approximate flat.As shown in Figure 7, because optics light distributing cap 24 is to thicken the configuration change of light intensity by the difference of transmissive wall, after making illuminator pass through diffuser luminous intensity distribution, main light intensity can be partial to surrounding, to avoid light intensity mainly to concentrate on the middle part of lampshade, makes the problem that marginal ray is dark.And in order to make middle part and the surrounding of lampshade 3 can realize uniformly light-emitting as far as possible, the present invention, after test and improvement many times, specially makes irregular curved-surface structure by the internal chamber wall of optics light distributing cap and outer wall.As Figure 4-Figure 6, the internal chamber wall of above-mentioned optics light distributing cap 24 by the not isometrical B2 of upper, middle and lower segment, B3, B1 circular arc wall or three sections not etc. the circular arc wall of arc angle (2, A3, A1 form and stage casing to the slightly curved irregular curved surface going out of inner chamber, B1 section R=16.5-20.5MM wherein, B2 section R=5.8-9.8 MM, B3 section R=14.8-18.8 MM, the arc angle of A1 is 10 °-13 °, and the arc angle of A2 is 73 °-79 °, and the arc angle of A3 is 12 °-18 °.In the present invention, stage casing being made as to the object of the slightly curved irregular curved surface going out of inner chamber, is the off-centered angle of main light intensity of controlling illuminator for auxiliary.For further strengthening equal light effect of the present invention, also can assist luminous intensity distribution by arranging of optics light distributing cap 24 outer wall curved surfaces, to reach optimal light distribution effect.If the outer wall of above-mentioned optics light distributing cap 24 is irregular that continuous arc surface D1, the D2 changing of four arcs angle, D3, D4 form, wherein the arc angle of D1 is 6 °-10 °, the arc angle of D2 is 22 °-26 °, the arc angle of D3 is 28 °-32 °, and the arc angle of D4 is 14 °-18 °.In the present invention, the preferred plan of diffuser is inwall: B1 section R=18.5 M M, B2 section R=7.8 MM, B3 section R=16.8 MM; The arc angle of A1 is 13 °, and the arc angle of A2 is 76 °, and the arc angle of A3 is 15 °.The outer wall of diffuser: D1 place arc angle is 8 °, the arc angle of D2 is 24 °, and the arc angle of D3 is 30 °, and the arc angle of D4 is 16 °.As shown in Figure 9, optics light distributing cap 24 in the present invention adopts after above-mentioned optimal parameter, the irregularly shaped periphery complementing each other to form of the irregularly shaped and outer wall by light distributing cap inwall is thick, the diffuser of top thin, can make the light intensity light distribution effect of LED illuminator form butterfly wing, namely central light strength is not maximum, maximum light intensity appears at and departs from approximately 80 °, center and locate, peak light intensity is about 5 times of central light strength, so realized to greatest extent effective distribution of light intensity, made the middle part of lampshade 3 and surrounding can realize comprehensive uniformly light-emitting.When changing above-mentioned optimal parameter, all can make the center angle that departs from of largest light intensity diminish and the light intensity of peak value and the ratio of central light strength are diminished.When especially inwall design parameter changes, have the greatest impact.If the parameter of inner and outer wall is less than normal or bigger than normal in above-mentioned optimal parameter but do not exceed the scope of above-mentioned each parameter, illuminator by diffuser luminous intensity distribution after the maximum light intensity of main light intensity generally appear at and depart from the many degree of center 50-70 place, although the surrounding of lampshade 3 also can be luminous like this, whole all light effect is not ideal enough.When the parameter of inner and outer wall is all less than or greater than above-mentioned parameter value range, although thickening that also can be by diffuser sidewall and internal chamber wall stage casing change the distribution of light intensity to the slightly curved irregular curved surface going out of inner chamber, make largest light intensity depart from center, but because of the off-centered angle of largest light intensity less (being generally less than 50 degree), so although the light intensity of lampshade surrounding is also much more than the light intensity of lampshade surrounding in prior art, there will not be the obvious dark space of periphery, but the light intensity of lampshade surrounding obviously will be weaker than the light intensity at lampshade middle part, so it is undesirable that light intensity is distributed, lampshade is difficult to reach the comprehensive all luminous effects of light of surrounding and middle part.For making the convenience of optical assembly assembling, reliable in structure again, above-mentioned some optics light distributing caps 24 are joined together to form by the ring 25 that is located by connecting integrated with it luminous intensity distribution ring that convenient dress is got.For making the present invention when reaching surrounding evenly luminous effect, can effectively reduce the cost of light source assembly again, and make its installation more convenient, preferred version is: above-mentioned LED illuminator is LED luminescence chip, above-mentioned LED light source assembly 22 is for by aluminium base 221 and be single-wheel and be arranged in the Luminous Ring that the LED luminescence chip 222 on this aluminium base 221 forms, above-mentioned Luminous Ring is locked on above-mentioned radiator 21, and above-mentioned luminous intensity distribution ring lock onto in described Luminous Ring and makes optics light distributing cap 24 correspondingly cover on the top of LED illuminator.Above-mentioned Luminous Ring is to be generally locked on radiator 21 by buckle structure, and above-mentioned luminous intensity distribution ring lock onto in Luminous Ring by buckle structure or lock screw.Can change when optical assembly 2 in light fixture has been gone bad after having used of a specified duration and facilitate, above-mentioned optical assembly 2 is by being positioned LED light source assembly 22 outer face of radiator 21 and driven unit 23 being installed on to radiator 21 middle part inner chambers and shape is in aggregates, on above-mentioned chassis 1, be provided with and connect pedestal 4, above-mentioned optical assembly 2 is replaceably installed on described connection pedestal 4 by screw structure.Above-mentioned driver module 23 comprises driving body 232, the driving cover plate 233 that is installed on the cover of driver 231 of above-mentioned radiator 21 middle part inner chambers and is installed on cover of driver interior 231, and above-mentioned optical assembly 2 is replaceably installed on described connection pedestal 4 with the screw structure being connected on pedestal 4 by described cover of driver 231.Above-mentioned screw structure forms with two buckles that are connected pedestal 4 inner sides by being arranged at respectively cover of driver 231 both sides.For making the present invention need to convert different colour temperatures according to using, and light mixing effect is good, and the above-mentioned outer LED illuminator covering under each optics light distributing cap 24 is formed by least two lamp pearls with different-colour.The advantage of mixed light is exactly the different colour temperature of conversion like this, namely in a lamp, think brilliant white light with regard to brilliant white light, want the light of its bright warm colour with regard to bright warm light.
For further instruction comprehensive luminous efficiency of the present invention, be below that light source assembly of the present invention contrasts effect with the luminous intensity distribution of existing light source assembly.
As Figure 7-8, be the light distribution effect figure of existing light source assembly, in the ordinary course of things, the luminous intensity distribution of LED light source is lambert's shape, and namely central light strength is maximum, and the angle of central light strength one half value is 60 °.Set light source O at the light intensity Ic along center position, C point brightness on lampshade so, the brightness of A point is, by Ic=2 x Ia, and Ra ≈ 2Rc.Can obtain Lc ≈ 8 La. lampshade light intensity uniformity within the scope of 120 ° and be less than 12.5%.
As can be seen here, the uniformity of lampshade of the present invention is obviously greater than the existing lampshade uniformity.
Although the present invention describes with reference to specific embodiment, this description not meaning that is construed as limiting the present invention.With reference to description of the invention, other of the disclosed embodiments change, and all can expect for those skilled in the art, and this variation should belong in affiliated claim limited range.
Claims (10)
1. the Novel LED ceiling lamp of a comprehensive uniformly light-emitting, comprise chassis (1), optical assembly (2), lampshade (3), described optical assembly (2) comprises radiator (21) and LED light source assembly (22), driver module (23), it is characterized in that described LED light source assembly (22) comprises that a ring is located at some LED illuminators of described radiator (21) outer face, and on described LED illuminator, be covered with the optics light distributing cap (24) that can make the main light intensity of illuminator appear from surrounding.
2. Novel LED ceiling lamp according to claim 1, it is characterized in that above-mentioned optics light distributing cap (24) starts toward the hemispherical of surrounding side progressive additive or approximate hemispheric diffuser or for periphery is thick, the irregular semicircular arch shape diffuser of top thin from top center for wall thickness, above-mentioned each LED luminous body position is in the inner chamber below of described diffuser, and the outer end face of optics light distributing cap (24) is flat or approximate flat.
3. Novel LED ceiling lamp according to claim 2, the internal chamber wall that it is characterized in that above-mentioned optics light distributing cap (24) by not isometrical (B2, B3, the B1) circular arc wall of upper, middle and lower segment or three sections not etc. the circular arc wall (A2, A3, A1) of arc angle form and stage casing to the slightly curved irregular curved surface going out of inner chamber, B1 section R=16.5-20.5MM wherein, B2 section R=5.8-9.8 MM, B3 section R=14.8-18.8 MM, the arc angle of A1 is 10 °-13 °, the arc angle of A2 is 73 °-79 °, and the arc angle of A3 is 12 °-18 °.
4. Novel LED ceiling lamp according to claim 3, is characterized in that above-mentioned B1 section R=18.5MM, B2 section R=7.8 MM, B3 section R=16.8 MM; The arc angle of A1 is 13 °, and the arc angle of A2 is 76 °, and the arc angle of A3 is 15 °.
5. according to the Novel LED ceiling lamp described in claim 3 or 4, the outer wall that it is characterized in that above-mentioned optics light distributing cap (24) is irregular that the continuous arc surface (D1, D2, D3, D4) changing of four arcs angle forms, wherein the arc angle of D1 is 6 °-10 °, the arc angle of D2 is 22 °-26 °, the arc angle of D3 is 28 °-32 °, and the arc angle of D4 is 14 °-18 °.
6. Novel LED ceiling lamp according to claim 5, is characterized in that D1 place arc angle is 8 °, and the arc angle of D2 is 24 °, and the arc angle of D3 is 30 °, and the arc angle of D4 is 16 °.
7. according to the Novel LED ceiling lamp described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that above-mentioned some optics light distributing caps (24) are joined together to form by the ring (25) that is located by connecting integrated with it luminous intensity distribution ring that convenient dress is got.
8. Novel LED ceiling lamp according to claim 7, it is characterized in that above-mentioned LED illuminator is LED luminescence chip, above-mentioned LED light source assembly (22) is for by aluminium base (221) and be single-wheel and be arranged in the Luminous Ring that the LED luminescence chip (222) on this aluminium base (221) forms, it is upper that above-mentioned Luminous Ring is locked in above-mentioned radiator (21), and above-mentioned luminous intensity distribution ring lock onto in described Luminous Ring and makes optics light distributing cap (24) correspondingly cover on the top of LED illuminator.
9. Novel LED ceiling lamp according to claim 1, it is characterized in that above-mentioned optical assembly (2) is by being positioned LED light source assembly (22) outer face of radiator (21) and driven unit (23) being installed on to radiator (21) middle part inner chamber and shape is in aggregates, on above-mentioned chassis (1), be provided with and connect pedestal (4), above-mentioned optical assembly (2) is replaceably installed on described connection pedestal (4) by screw structure, this driver module (23) comprises the cover of driver (231) that is installed on above-mentioned radiator (21) middle part inner chamber and the driving body (232) that is installed on (231) in cover of driver, drive cover plate (233), above-mentioned optical assembly (2) is replaceably installed on described connection pedestal (4) with the screw structure being connected on pedestal (4) by described cover of driver (231).
10. Novel LED ceiling lamp according to claim 1, the LED illuminator that it is characterized in that being positioned under each optics light distributing cap (24) is formed by least two LED luminescence chips with different-colour.
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| CN105333360A (en) * | 2015-11-30 | 2016-02-17 | 江门市艺光科技开发有限公司 | Ceiling lamp with beautiful decoration |
| US11946615B2 (en) | 2020-01-20 | 2024-04-02 | Signify Holding, B.V. | Luminaire comprising identical, curved LED Modules and LED Module suitable for said luminaire |
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| CN103672637B (en) | 2016-05-04 |
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