CN206582546U - The reflector of lighting source and the lighting device for including the reflector - Google Patents

Abstract

The utility model provides a kind of reflector of lighting source, including the reflective body with reflective side walls, open top and bottom opening.The inner surface of the side wall is configured to parabolic reflector, paraboloidal Throwing things line has two-end-point and Throwing thing lines summit, the Throwing things line summit is relative to the bottom opening closer to the open top, and the height between the line of the two-end-point of the Throwing things line and the Throwing things line summit is the Throwing things line height H.The height h of side wall and the length L of bottom opening ratio h/L are between 0.4 to 0.7, the height h and Throwing thing line height H of side wall ratio h/H between 0.55 to 0.75, and the height h of reflector side wall and open-topped length l ratio h/l between 0.3 to 0.55.The utility model, which is additionally provided, includes the lighting device of above-mentioned reflector, and the lighting device can reduce type unified glare value (UGR) while high illumination delivery efficiency is kept.

Description

The reflector of lighting source and the lighting device for including the reflector

Technical field

The utility model is related to field of illuminating device.More specifically, the utility model is related to a kind of lighting source Reflector and the lighting device for including the reflector, the lighting device can be realized while high illumination delivery efficiency is kept Relatively low type unified glare value (UGR).

Background technology

LED is as a kind of solid luminescence light source with great potential, with its long lifespan, sound construction, low-power consumption With appearance and size it is flexible the advantages of more and more paid close attention to by people, gradually replace traditional high-pressure halogen lamp to apply Various lighting fields.But, LED/light source has the output of high lumen and the small characteristic of light-emitting area in itself so that LED/light source is shining The problems such as dazzle and too big uniform illumination degree difference are easily caused in prescribed space, causes space degree of comfort decreased.Serious dazzle Human eye can be made to produce visual fatigue, cause uncomfortable sensation, the production efficiency reduction of staff.

On in the DESIGN OF INTERI OR LIGHT application of office or commercial location, the comfort of vision is particularly important.To reach This purpose, should select to reduce the product of direct projection dazzle and reflected glare.The position of correct placement light fixture and use can reduce direct projection Dazzle and the optical element of reflected glare, can reduce influence of the dazzle to people or the injury to human eye.

The uncomfortable degree as caused by dazzle is quantified by type unified glare value (Unified Glare Rating, UGR).UGR The scope of value is general between 10 to 30, and numerical value height represents that uncomfortable degree height is made us in dazzle, and the low expression of numerical value can less be caused Uncomfortable dazzle.UGR values are less than 10, and expression will not produce the dazzle of discomfort.International standard EN 12464-1：2011- 08 defines the UGR standards for illuminator.

UGR values	Dazzle non-comfort rank
		10	It is imperceptible go out
13	Just perceive out
		16	Perceive out
19	It is just acceptable
		22	Just can be uncomfortable
25	It is uncomfortable
		28	It is unacceptable

Obtain low UGR values, it should uniform direct beam is provided as far as possible, and reduces the horizontal plane with illumination space Parallel lateral beam.Therefore, existing ceiling lamp mainly uses reflecting plate or shield, limitation illuminating bundle directive is not intended to The direction of irradiation, or increase cutoff angle of a luminaire (angle i.e. between illumination beam and horizontal line).Another method is to use Dispersing element is to cover bright light beam.But these settings are all very expensive.

In addition, Chinese Patent Application No. 2012800140123.7 provides a kind of lighting device for reducing type unified glare value, The lighting device is configured with a kind of illuminating member, and the component forms the air gap between multiple laminates, using between air The jointing material patterned layer of gap periphery increases reflection efficiency, while setting the pattern of specific structure to reduce UGR by removing Value.

Another Chinese Patent Application No. 201110299984.4 discloses the lighting apparatus for reducing dazzle, including the first prism Plate and the second prism plate, second prism plate be arranged to the longitudinal direction of the prism pattern to be formed on the second prism plate with The longitudinal direction of prism pattern on first prism plate intersects, and the horizontal stroke of the prism pattern of the first prism plate and the second prism plate The triangle in section is equilateral triangle, and the height H and base L of the equilateral triangle relation are 0.1≤H≤0.2L.

The technical scheme of above-mentioned two Chinese patent application is directed to design specific pattern on illuminating member, such Technical scheme complex manufacturing process, costliness.

Therefore, it is necessary to be improved to the existing LED light device for being used as illumination purpose, simplify its structure, reduction Manufacturing cost.The lighting device can reduce the dazzle for causing human eye not feel well, it is to avoid to people produce dazzle interference and can The injury that can be caused to human eye, improves luminous efficiency and increase luminous flux.

Utility model content

The purpose of this utility model is to overcome disadvantages mentioned above of the prior art there is provided a kind of novel lighting device, The lighting device not only has good luminous efficiency and high light flux, and reduces UGR values, simplifies structure and from structure On solve the glare problem of LED/light source, it is therefore prevented that the strong light that LED is sent is to discomfort caused by human eye and is possible to make Into injury.

The purpose of this utility model is achieved through the following technical solutions there is provided a kind of reflector of lighting source, Including：Reflective body, the reflective body have reflective side walls, the open top being made up of the top of the reflective side walls and The bottom opening being made up of the bottom of the reflective side walls.The inner surface of the side wall is adapted to the parabola of reflected light, The paraboloidal Throwing things line has two-end-point and Throwing thing lines summit, and the Throwing things line summit more connects relative to the bottom opening The nearly open top, the height between the line of the two-end-point of the Throwing things line and the Throwing things line summit is the Throwing things line Height H；The height h of the side wall and the length L of the bottom opening ratio h/L are between 0.4 to 0.7.

The height h of the side wall and the Throwing things line height H ratio h/H can be between 0.55 to 0.75；Described The height h of reflector side wall and the open-topped length l ratio h/l can be between 0.3 to 0.55.

In the preferred embodiment of the utility model one, the ratio of the height of the side wall and the length of the bottom opening H/L between 0.45 to 0.55, the ratio h/H of the height of the side wall and the Throwing things line height between 0.6 to 0.7, and And the height h of described reflector side wall and the open-topped length l ratio h/l are between 0.4 to 0.5.

In the specific embodiment of the utility model one, the reflective body is surrounded by four side walls and formed, and its longitudinal direction Section has the section of trapezium structure, wherein the bottom opening is bigger than the open top.It is relative in four side walls Central vertical axis of two side walls along the reflective body is symmetrically arranged, and the inner surface of two relative side walls is by structure The parabolical half is caused to extend the half paraboloid to be formed.The bottom opening is configured to oblong openings or square Opening, the length of the bottom opening includes the rectangular length or width or including the square length of side.

In some cases, the inner surface of each side wall of reflector is included from bottom opening to open-topped side The parabola that upwardly extends and from the parabola extend to it is described it is open-topped one or more there is different radii Arc-shaped surface.In the specific embodiment of the utility model one, the inner surface of the side wall is thrown by an arc-shaped surface and one Object plane is constituted, wherein the arc-shaped surface extends to 1/5 to 1/3 place of the height of the side wall, institute from the open top It is parabola discussed above to state parabola, and extends to the bottom opening from the arc-shaped surface.

Second aspect of the present utility model provides a kind of lighting device, including：

Light source cell, it includes one or more LED/light sources；

Circuit board, one or more described LED/light sources are arranged on the circuit board；

One or more dispersing elements, the dispersing element is used to scatter the light that the light source cell is sent；

Wherein, the lighting device also includes reflector of the present utility model corresponding with the quantity of the dispersing element, Wherein described dispersing element be arranged between the LED/light source and corresponding reflector and be configured to closure it is corresponding The open top of reflector, is filled so that the light scattered by the dispersing element reflexes to the illumination by the inner surface of reflector The outside put.

It is preferred that partly having the thin slice of dome centered on the dispersing element, the dispersing element is installed into it Central axis is overlapped with the central axis of the reflector and the dome-shaped core is towards the side of the reflector The inner chamber that wall is surrounded is protruded.

In the specific embodiment of the utility model one, the reflector of lighting device is configured to the reflective body by four Side wall is surrounded and formed, and its longitudinal cross-section has the section of trapezium structure, wherein the bottom opening is than the open top Greatly；And the central vertical axis of relative two side walls along the reflective body is symmetrically arranged in four side walls, institute The inner surface for stating two relative side walls is configured to the parabolical half and extends the half paraboloid to be formed.Correspondingly, institute The quadrangle that dispersing element is configured to coordinate with the open top is stated, the core of the quadrangle protrudes to form described Dome, wherein being provided with constrainer in the open top, the dispersing element is clamped to the top of the reflector In opening.

It is preferred that the constrainer includes the tab being separately positioned on the open-topped relative two edges, it is described Two tabs are used for the edge for clamping respective sides in the dispersing element；And the other two edges from the dispersing element A lappet is each extended over towards the bottom opening of the reflector, the lappet is configured to be attached to the reflector On the outer surface of respective side walls, so that the dispersing element be positioned and clamping in the open top.

In addition, from the edge of the opposite sides of the bottom opening of the reflector towards the open top formed with it is described The vertical wall of the centerline axis parallel of reflector, forms one or more laterally projecting parts on each vertical wall, described Laterally projecting part is engaged with the opening in the housing of the lighting device on relevant position, so that the reflector be fixed on On the lighting device.The vertical height of the vertical wall is preferably 0.25 to 0.35 times of the height of the reflector.

Advantageously, it is respectively equipped with and can mutually connect on the edge of the relative other both sides of the bottom opening of the reflector The hook and lug of conjunction, take this to link together two adjacent reflectors.In addition, described two vertical walls have court To the extension of the direction extension of the same side wall of reflector, jack is respectively equipped with described two extensions；Accordingly Ground is respectively equipped with latch on direction relative with the above-mentioned side wall of reflector on described two vertical walls so that a reflector Latch can insert the jack of another reflector, two adjacent reflectors are linked together.

The circuit board that lighting device of the present utility model is used can be printed circuit board (PCB) (PCB) or metal-cored printing electricity Road plate (MCPCB), installs multiple LED/light sources, the multiple LED light on the printed circuit board (PCB) or metal-core printed circuit board Source is accordingly configured with the multiple reflectors connected by the hook and the lug, forms array of source.Light source battle array Row include linear, rectangle, square, triangle, polygon or Zig-zag array.

The inner surface of reflector of the present utility model can be coated with the reflectorized material of light, and dispersing element is existed by light transmittance Material in the range of 82% to 95% is made.

Different from the lighting device of prior art, lighting device of the present utility model, which is configured with the utility model, has uniqueness The reflector of design, the size of the Sidewall Height of the reflector, bottom opening and open-topped length meets certain bar Part.It has been found that under conditions of each ratio range of the present utility model is met, the light sent by LED/light source passes through scattering Inner surface after element again by reflector reflects, and heart-shaped or bat-wing, light beam is presented in illuminating bundle scatter chart Angle is about 90 ° to 120 °.Therefore, lighting device of the present utility model is efficiently reduced while illumination intensity is maintained UGR values, the UGR values for realizing lighting device are equal to or less than 19 effect.

The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing It is bright, to be fully understood from the purpose of this utility model, feature and effect.

Brief description of the drawings

Figure 1A shows that the bottom of the reflector of the utility model first embodiment regards schematic perspective view.

Figure 1B shows the top perspective schematic diagram of the reflector shown in Figure 1A.

Fig. 2 shows the bottom view of the reflector shown in Figure 1A.

Fig. 3 shows the front view of the reflector shown in Figure 1A.

Fig. 4 shows the Section A-A figure in Fig. 2.

Fig. 5 shows the section B-B figure in Fig. 2.

Fig. 6 shows the schematic diagram that two reflectors are connected.

Fig. 7 shows the stereogram of the dispersing element constructed according to the utility model.

Fig. 8 shows the front view of the dispersing element shown in Fig. 7.

Fig. 9 shows the top view of the dispersing element shown in Fig. 7.

Figure 10 shows the bottom view of the dispersing element shown in Fig. 7.

Figure 11 shows the top perspective view after the dispersing element assembling of Figure 1A reflector and Fig. 7.

Figure 12 shows the section plan after the dispersing element assembling of Figure 1A reflector and Fig. 7.

Figure 13 shows the three-dimensional cutaway view after the dispersing element assembling of Figure 1A reflector and Fig. 7.

Figure 14 show the stereogram of the reflector module including multiple reflectors of the present utility model before assembling.

Figure 15 show the stereogram of Figure 14 multiple reflector modules after assembling.

The bottom that Figure 16 show the reflector of the utility model second embodiment regards schematic perspective view.

Figure 17 shows the bottom view of the reflector shown in Figure 16.

Figure 18 shows the front view of the reflector shown in Figure 16.

Figure 19 shows the Section A-A figure in Figure 17.

Figure 20 shows the section B-B figure in Figure 17.

Figure 21 shows the schematic diagram of the lighting pattern of the reflector according to Figure 16.

Figure 22 show the three-dimensional exploded view of the LED light device of an embodiment of the present utility model.

Figure 23 shows the illuminating bundle scatter chart that the LED light device according to Figure 16 is sent.

In various figures, similar reference number represents similar part.

Embodiment

Although using preferred embodiment come explanation and illustration the utility model, reflector and dispersing element of the present utility model It can be manufactured using many different configurations, size, shape and material.

Referring now to accompanying drawing, Figure 1A and 1B and Fig. 2 to Fig. 5 are provided according to the utility model first preferred embodiment structure The reflector 100 made.In this embodiment, the reflector 100 includes reflective body 110, and reflective body 110 is included in its top Open top 120 and bottom opening 140 that portion and bottom are opened up.In this embodiment, reflective body 110 is by four side walls 130A, 130B, 130C, 130D are around forming, and the tetrahedral longitudinal cross-section that four side walls are constituted has cuing open for trapezium structure Face, wherein bottom opening 140 are bigger than open top 120.In the tetrahedron, relative two sides wall 130A, 130B are along institute The central vertical axis Z for stating reflective body is symmetrically arranged, and its inner surface is constructed separately into parabolical half extension The truncation half paraboloid of formation.As shown in figure 5, symmetrical semi-parabolic end points extends from the edge of bottom opening 140 respectively To open top 120, intersect until extending beyond open top 120, form parabolical summit.In the present embodiment, two The line of semi-parabolic end points is located in the plane of bottom opening 140.Therefore by the plane of bottom opening 140 to parabolical The height on summit is the parabolical height H.

Similarly, relative two sides wall 130C, 130D setting is as two sides wall 130A, 130B, along described anti- The central vertical axis Z for penetrating main body is symmetrically arranged, and its inner surface is constructed separately into the parabolical half extension The truncation half paraboloid of formation, will not be repeated here.

As shown in Figures 2 to 6, open top 120 is square openings, and the length of side is l；Bottom opening 140 is rectangle, long Spend for L, width is W.Certainly, open top can also make oblong openings, and bottom opening can also make square openings, Or the two openings can make the opening of suitable shape.

The utility model people has found, if the Sidewall Height h and bottom opening 140 of reflector 100 length are set in In certain ratio, then light source enters the inner chamber surrounded by four sides wall 130A, 130B, 130C, 130D from open top 120 Interior, the light beam of the reflective inner surface reflection through four side walls can reduce URG values, while keeping uniform luminous intensity, that is, illuminate Preferable lighting pattern is presented in beam distribution curve map.The length of bottom opening can be rectangular length L or width W.Tool Body, the Sidewall Height h and the ratio of the length of bottom opening 140, such as h/L of reflector 100, be set in about 0.4 to Between 0.7, it is preferably about between 0.45 to 0.55, most preferably about 0.5, comparatively ideal lighting pattern will be obtained, as shown in figure 23.

It has also been found that, the height h and Throwing thing line height H of side wall ratio h/H is set between about 0.55 to 0.75, preferably Between ground about 0.6 to 0.7, most preferably about 0.65, and the ratio of the height h and open-topped length l reflector side wall H/l is preferably about between 0.4 to 0.5 between 0.35 to 0.55, most preferably about 0.45, the illuminating bundle distribution curve of acquisition Figure can be more preferably heart-shaped or bat-wing, i.e., URG values be less than 19, and be able to maintain that higher light output, preferably Width of light beam and higher luminous efficiency.

Side wall 130A, 130B, 130C, 130D of reflector 100 inner surface are smooth parabola, can plate light Reflectorized material, to increase light efficiency.On the inner surface that the light sent from light source can reflex to reflector, then via bottom opening 140 It is irradiated to outside.

Referring to Figure 1B and Fig. 4, constrainer is provided with open top 120, for the dispersing element of lighting device to be constrained In the open top 120 of the reflector.As illustrated, constrainer includes be separately positioned on open top 120 relative two Tab 121 on edge, described two tabs 121 are used for the edge for clamping respective sides in dispersing element, will hereafter make detailed Description.

Referring to Figure 1A and Fig. 2 and Fig. 3, on the side of opposite sides 130A, 130B of the bottom opening 140 of reflector 100 Edge forms the vertical wall 160 parallel with the central axis Z of the reflector towards open top 120, on each vertical wall 160 Form one or more laterally projecting parts 161, the laterally projecting part 161 with the housing of lighting device on relevant position Side plate is engaged (see Figure 22), so that reflector 100 is fixed on the lighting device.In an illustrated embodiment, vertical The height of wall 160 is set as 0.25 to 0.35 times of the height of reflector 100.

As shown in Figure 1B, Fig. 2 and Fig. 5, in other two side 130C, 130D of the bottom opening 140 of reflector 100 The hook 151 that can be engaged each other and lug 152 are respectively equipped with edge, takes this two adjacent reflectors 100 being connected to one Rise (as shown in Figure 6).In addition, two vertical walls 160 have the extension 162 extended towards the same side wall 130D direction, Jack 163 is respectively equipped with described two extensions 162；Correspondingly, described two vertical walls are by proximal wall 130C's Position is respectively equipped with latch 164 (as shown in Figure 1B and Fig. 3), and latch 164 is worked in coordination with jack 163 so that a reflector Latch 164 can insert the jack 163 of another reflector, two reflectors are linked together.

Referring now to Fig. 7 to Figure 10, the scattering member suitable for being used cooperatively with above-described reflector 100 is shown in figure Part 200.The base portion of dispersing element 200 is one piece of square thin slice, and its size can close the square shaped top opening of reflector 100 120, the light guiding that light source is sent scatters to the inner chamber of the reflective body of reflector 100, and the side wall of reflected main body is reflexed to The outside of lighting device.As shown in fig. 7, the core 210 of dispersing element 200 is in dome, dome-shaped core 210 are surrounded by four edges 220.Four edges 220 constitute the dome-shaped core 210 of dispersing element 200 Vertical sidewall 212 and reflector 100 four sides wall 130A, 130B, 130C, 130D between isolated area (stand-off Zone), the setting of the isolated area reduces the veiling glare from the directive reflector 100 of dome-shaped core 210, is conducive to shape Into desired lighting pattern.The isolated area and the height of dome-shaped core 210 coordinate, for finely tuning lighting pattern Central area.Isolated area sets too big or too small, will all reduce the overall output of luminous intensity.In addition, dome-shaped The height of core 210 also has certain requirement, if height is too high, can influence final UGR values.For example, in dome-shaped The area of center portion point 210 is 20x20mm, and height is 6.5-7mm, then the width of each isolated area is set as about 5mm, is demonstrated to Obtain good lighting pattern.Relative two edges 240C, 240D are towards dome-shaped core from dispersing element 200 210 directions protruded each extend over a lappet 230, and the lappet 230 is configured to be attached to the corresponding of reflector 100 On two sides wall 130C, 130D outer surface, take this to position dispersing element 200 and the clamping open top in reflector 100 On 120.

The dispersing element 200 of the present embodiment is molded by the translucent plastic with light transmittance between 82% to 95% and made Into the plastics of selection can be between 5% to 15% in the scattered power of 1mm thickness.

Figure 11 to Figure 13 shows reflector 100 and the schematic diagram after the assembling of dispersing element 200.As shown in FIG., scatter Element 200 is installed into its center axis Y and overlapped with the central axis Z of reflector 100, and dispersing element 200 is closely closed instead The open top 120 of emitter 100 and its dome-shaped core 210 are protruded towards the reflection inner chamber of reflector 100.Scattering Other two edges 240A, 240B of element 200 are pressed from both sides by the tab 121 on the relative two edges of the open top 120 of reflector 100 Handle so that whole dispersing element 200 is by clamping in open top 120.Referring to Fig. 9 and Figure 10, the edge of dispersing element 200 240C, 240D are also respectively equipped with lateral register groove 250, are provided with and lateral register groove 250 on the relevant position of open top 120 The lateral register block 122 worked in coordination (see Figure 1B).The engagement of lateral register groove 250 and lateral register block 122 not only improves scattered The positioning of element 200 is penetrated, reinforcement is also played to the clamping of dispersing element 200.

As discussed above, the structure of reflector of the present utility model allows to assemble multiple reflectors.Figure 14 institutes It is shown as including the top view of a reflector module 300 of four reflectors, the reflector module 300 is integrally formed prefabricated Part, the side wall 130C of leftmost reflector sets to set on hook 151 and adjacent sidewall 130C position and inserted in the module Pin 164, the reflector side wall 130D of rightmost, which is then set, sets jack 163 on lug 152 and adjacent sidewall 130D position.It is logical Cross the lug 152 by the hook 151 and latch 164 of a reflector module 300 and another hook 151 and latch 164 and insert Hole 163 respectively in connection with, so that it may so that the reflector module 300 described in this two links together, as shown in figure 15 for assembling after Reflector module bottom view.In this way, just can be according to being actually needed multiple LED equipped with reflector 100 neatly Assembling optical sources include but is not limited into different array of source：Linear array, rectangular array, quadrate array, triangle battle array Row, Polygonal arrays or Zig-zag array etc..

Figure 16 to Figure 20 show the reflector 400 of the utility model second embodiment.The present embodiment and first embodiment Main difference is that：Each side wall 430A, 430B, 430C, 430D inner surface are thrown by an arc-shaped surface 431 and one Object plane 432 is constituted.Arc-shaped surface 431 and parabola 432 are configured to identical reflective material layer.Arc-shaped surface 431 extend at about the 1/5 of Sidewall Height from open top 420, and parabola 432 extends to bottom from arc-shaped surface 431 and opened Mouth 440.The parabola of the structure of parabola 432 and above-described first embodiment is essentially identical, refers to above for throwing The description of object plane, will not be repeated here.The circular arc degree or radius R of arc-shaped surface 431 are relevant with open-topped size, top What is be open is smaller, and the circular arc degree of arc-shaped surface 431 is larger；It is open-topped larger, the circular arc degree of arc-shaped surface 431 compared with It is small.It should be appreciated by those skilled in the art can set two or more circles between open top 420 and parabola 432 Arc-shaped curved surface, this depends on the Sidewall Height or/and open-topped size of reflector.

Set between the open top of reflector and the parabola of side wall the reason for arc-shaped surface and be to meet some The need for occasion.In some occasions need multiple reflectors to connect to form relatively large light fixture and need very many anti- Emitter, wishes the quantity for reducing reflector to reduce cost, this must increase the size of reflector, with full in some cases Sufficient design object.But the height of light fixture too high installation requirement to meet ceiling limited height and it is desirable that can not be maintained low UGR values.If the dimension ratio of reflector is maintained it is necessary to the length for the bottom opening for increasing reflector, but increase bottom is opened The length of mouth can increase the height of reflector.Carried to keep the Sidewall Height of reflector and the ratio of bottom opening to fall above And in the range of, it is necessary to change the structure near the open top of reflector, i.e. the parabola of the side wall of reflector is arranged on Higher than the place of open top 1/5 to 1/3, one or more arc-shaped surfaces are set between parabola and open top, for connecting Parabola and open top.The circular arc degree of arc-shaped surface is bigger, and parabola is to open-topped apart from smaller.It is bent by circular arc The echo area that face is constituted only accounts for about the 20% to 25% of the area of whole reflector inner surface.Such effect is the circle of reflector The light that arc-shaped curved surface projects the dome-shaped core 210 of dispersing element 200 is more toward the foveal reflex of light beam.So And, because the area of arc-shaped surface is limited, and light source substantially cover is in the central part of dispersing element 200 Point, therefore the reflected light from arc-shaped surface influences little to integral illumination beam pattern, the illumination light of the reflector of acquisition Beam pattern substantially still maintains heart-shaped or bat-wing, as shown in figure 23.

Figure 21 show the schematic diagram of the lighting pattern of the reflector of second embodiment.Figure 21 is clearly illustrated, from light source 520 light sent are scattered to the anti-of each side wall of reflector 100 by the dome-shaped core 210 of dispersing element 200 Inner surface is penetrated, the light of its small portion is scattered to arc-shaped surface 431, and most light is then scattered to the shallow throwing of reflector Object plane 432.As illustrated, no matter the light from arc-shaped surface 431 or from shallow parabola 432 all fall within beam center and Region between the lamp shielding angle of reflector.Therefore, the dazzle of lighting device is greatly reduced.

Figure 22 shows the three-dimensional exploded view of the LED light device 500 of an embodiment of the present utility model, the illumination dress Put the reflector 100 and dispersing element 200 for employing the utility model first embodiment.As illustrated, LED light device 500 Include reflector 100, dispersing element 200 corresponding with the quantity of reflector 100, the circuit board of multiple connection linear arrays 510th, on pcb board 510 multiple LED/light sources 520, power subsystem 530, housing lower half 540, upper half-shell 550, support Block 560, screw 570, radiator and control circuit.

Housing lower half 540 and upper half-shell 550 form the housing of lighting device 500 after connecting, various electronics and machinery Element is contained in the housing.Housing lower half 540 offers a longitudinal groove 542, reflected light can be allowed to transmit.Groove 542 both sides set the side plate 541 that the inner surface from housing lower half 540 extends internally respectively, the side plate 541 be configured to The laterally projecting part 161 of the respective side walls of reflector 100 is engaged, and reflector 100 is fixed in housing.Housing lower half 540 can make the color matched with ceiling, the indoor environment better blended into where lighting device.Power subsystem 530 can With the configuration from prior art.Support block 560 is used to support and fixed power source unit 530.

The control circuit of lighting device 500 is not shown, and the control circuit can selectively be made integrally to be filled with lighting device On circuit board 510, can also make with the split of lighting device 500, with plug-in joint to connect with lighting device 500 Connect.It is not main points of the present utility model to control circuit and radiator, and this place is not described in detail.

LED/light source 520 can be LED chip, LED encapsulation or LED array.All LED/light sources 520 can connect and/or simultaneously Connection connection, but they are axially installed on circuit board 510 along straight line.Heat-sinking capability and illumination with regard to radiator For the light output efficiency of device, the arrangement of this straight line of LED/light source has cost benefit.In the present embodiment, often Individual LED/light source 520 is made up of 4 to 5 LED chips, and the dome-shaped core 210 installed in heat dissipation element 200 is surrounded Cavity in.When high-power output is needed, LED/light source 520 can also be using LED encapsulation (COB).

Circuit board 510 is formed by two printed circuit board (PCB) (PCB) electrical connections.The copper foil of printed circuit board (PCB) has good dissipate Hot property, is installing LED/light source 520, the heat produced from LED/light source 520 is passed to the large area of printed circuit board (PCB) thereon, Distributed again.Circuit board 510 can be traditional FR4 or CEM types, or the gold with more preferable thermal management ability Belong to core printed circuit board (PCB) (MCPCB).As illustrated, circuit board 510 is arranged at the open top 120 of reflector 100, and dissipate Penetrate element 200 to be located between open top 120 and LED/light source 520 so that LED/light source 520 is completely in heat dissipation element 200 In the cavity that dome-shaped core 210 is surrounded.

The connection of reflector 100 and dispersing element 200 can be referring to Figure 11 to Figure 13 and above concerning description.In illumination In device 500, the bottom opening 140 of reflector 100 is towards housing lower half 540.The light directive scattering member that LED/light source 520 is sent Part 200, enters the reflection inner chamber of reflector 100 by open top 120 after scattering, then by the reflection of each side wall of reflector Inner surface reflects, and reflexes to the outside of lighting device 500 through housing lower half 540 again by bottom opening 140.

It is well known that to reduce dazzle, it is necessary to control the illuminating bundle of lighting device to be distributed, especially the angle of cutoff beam Degree.Beam angle is too big, and direct glare is not only caused to human eye, and lighting area causes luminous intensity to reduce greatly.Beam angle Too small, lighting area reduces, and is intended to become spot light, light distribution is uneven, can also produce the glare problem of spot light.Cause This, for room lighting, preferable illuminating bundle distribution is heart-shaped or bat-wing lighting pattern, and its beam angle is big About at 90 °, it is ensured that light beam homed on its target region, at the same target area and its around region have enough brightness.Typically For, the angle of cutoff beam is about 120 °, to meet the requirement of lamp shielding angle.It is heart-shaped or bat-wing lighting pattern Height output in two pterions significantly strengthens the reflected light from surrounding wall and floor, therefore can increase the back of the body of the interior space The intensity of scape light, makes the global illumination of the interior space evenly.So heart-shaped or bat-wing lighting pattern is room lighting Preferable pattern.

Figure 23 shows the illuminating bundle scatter chart that LED light device 500 is sent.As illustrated, lighting device 500 is sent out The illuminating bundle gone out is in heart-shaped or bat-wing, and two pterions have high luminous intensity.The center of light beam is located substantially in 500cd/klm, two pterions are located substantially in 650cd/klm, and the peak in two pterions is generally at 15 ° of both sides.Half work( Rate beam angle is generally within 45 °.

Calculated, found of the present utility model according to the tabulation method (CIE 117-1995) of International Commission on Illumination (CIE) The UGR that LED light device 500 is obtained in room-sized and whole standard combinations of ceiling, wall and floor reflection index Value both less than 19.

This shows that lighting device of the present utility model contains reflector of the present utility model, and is provided with anti-with this The dispersing element that emitter is engaged, its light exported distribution has heart-shaped or bat-wing lighting pattern, keeps simultaneously The brightness of illuminating bundle, i.e., reducing type unified glare value (UGR) while high illumination delivery efficiency is kept, there is provided relax Suitable illumination.

Although being described in conjunction with the accompanying several preferred embodiments of the present utility model, the utility model should not be limited The description and accompanying drawing being formed on more than are identical structurally and operationally.To one skilled in the art, do not surpassing Can also be to above-described embodiment by logical analysis, reasoning, or a limited experiment in the case of going out the utility model spirit and scope Number of improvements could be made and change, but such modifications and variations should all belong to the claimed scope of the utility model.

Claims (23)

1. a kind of reflector of lighting source, including：

Reflective body, the reflective body have reflective side walls, the open top being made up of the top of the reflective side walls and The bottom opening being made up of the bottom of the reflective side walls；

Characterized in that, the inner surface of the side wall, which is configured to Throwing thing lines, extends the parabolic reflector to be formed, the parabola Throwing thing lines there is two-end-point and Throwing thing lines summit, the Throwing things line summit is relative to the bottom opening closer to the top Opening, the height between the line of the two-end-point of the Throwing things line and the Throwing things line summit is the Throwing things line height H；It is described The height h of side wall and the length L of the bottom opening ratio h/L are between 0.4 to 0.7.

2. reflector according to claim 1, it is characterised in that the height h of the side wall and Throwing things line height H's Ratio h/H is between 0.55 to 0.75.

3. reflector according to claim 1, it is characterised in that the height h of described reflector side wall and the top The length l of opening ratio h/l is between 0.3 to 0.55.

4. reflector according to claim 2, it is characterised in that the height h of described reflector side wall and the top The length l of opening ratio h/l is between 0.3 to 0.55.

5. reflector according to claim 3, it is characterised in that the ratio of the height of the side wall and the length of the bottom opening Value h/L between 0.45 to 0.55, the ratio h/H of the height of the side wall and the Throwing things line height between 0.6 to 0.7, And the height h of described reflector side wall and the open-topped length l ratio h/l are between 0.4 to 0.5.

6. reflector according to any one of claim 1 to 5, it is characterised in that the reflective body is by four side walls Around into and its longitudinal cross-section has the section of trapezium structure, wherein the bottom opening is bigger than the open top.

7. reflector according to claim 6, it is characterised in that two relative side walls are described in four side walls The central vertical axis of reflective body is symmetrically arranged, and the inner surface of two relative side walls is configured to the parabola Half extend the half paraboloid to be formed.

8. reflector according to claim 5, it is characterised in that the bottom opening is configured to oblong openings or just Square aperture, the length of the bottom opening includes the rectangular length or width or including the square side It is long.

9. reflector according to claim 5, it is characterised in that the inner surface of each side wall is included from bottom opening The parabola and extended to from the parabola described open-topped one or more that extremely open-topped side upwardly extends The individual arc-shaped surface with different radii.

10. reflector according to claim 9, it is characterised in that the inner surface of the side wall by an arc-shaped surface and The parabola composition, wherein the arc-shaped surface extends to the 1/5 to 1/3 of the height of the side wall from the open top Place, the parabola extends to the bottom opening from the arc-shaped surface.

11. a kind of lighting device, including：

Light source cell, it includes one or more LED/light sources；

Circuit board, one or more described LED/light sources are arranged on the circuit board；

One or more dispersing elements, the dispersing element is used to scatter the light that the light source cell is sent；

Characterized in that, the lighting device is also included in such as claim 1 to 10 corresponding with the quantity of the dispersing element Reflector described in any one, wherein the dispersing element be arranged between the LED/light source and corresponding reflector and by It is configured to close the open top of corresponding reflector, so that the light scattered by the dispersing element is by reflector Surface reflexes to the outside of the lighting device.

12. lighting device as claimed in claim 11, it is characterised in that partly there is dome centered on the dispersing element Thin slice, the dispersing element is installed into its center axis and overlapped with the central axis of the reflector and the dome The inner chamber that the side wall of shape core towards the reflector is surrounded is protruded.

13. lighting device as claimed in claim 12, it is characterised in that the reflector is configured to such as claim 4 to 9 Any one of reflector, the dispersing element be configured to the open top coordinate quadrangle, four side The core of shape is protruded to form the dome, wherein being provided with constrainer in the open top, the dispersing element is pressed from both sides Hold and be fixed in the open top of the reflector.

14. lighting device as claimed in claim 13, it is characterised in that the constrainer includes being separately positioned on the top Tab on the relative two edges of opening, described two tabs are used for the edge for clamping respective sides in the dispersing element；And And other two edges each extend over a lappet, the lappet towards the bottom opening of the reflector from the dispersing element It is configured to be attached on the outer surface of the respective side walls of the reflector, so that the dispersing element be positioned and clamping In the open top.

15. lighting device as claimed in claim 13, it is characterised in that from the opposite sides of the bottom opening of the reflector Edge form vertical wall with the centerline axis parallel of the reflector towards the open top, in each vertical wall Upper one or more laterally projecting parts of formation, the laterally projecting part with the housing of the lighting device on relevant position Opening engagement, so that the reflector is fixed on the lighting device.

16. lighting device as claimed in claim 15, it is characterised in that the height of the vertical wall is the height of the reflector 0.25 to 0.35 times of degree.

17. lighting device as claimed in claim 15, it is characterised in that the reflector bottom opening it is relative another The hook that can be engaged each other and lug are respectively equipped with the edge of outer both sides, takes this two adjacent reflectors being connected to Together.

18. lighting device as claimed in claim 17, it is characterised in that described two vertical walls have towards the reflector The same side wall direction extension extension, be respectively equipped with jack on described two extensions；Correspondingly described two Individual vertical wall has is respectively equipped with latch towards the relative direction of the above-mentioned side wall of the reflector so that reflector is inserted Pin can insert the jack of another reflector, and two adjacent reflectors are linked together.

19. lighting device as claimed in claim 17, it is characterised in that the circuit board is printed circuit board (PCB) or metal-cored Printed circuit board (PCB), installs multiple LED/light sources, the multiple LED light on the printed circuit board (PCB) or metal-core printed circuit board Source is accordingly configured with the multiple reflectors connected by the hook and the lug, forms array of source.

20. lighting device as claimed in claim 19, it is characterised in that the array of source includes linear, rectangle, pros Shape, triangle, polygon or Zig-zag array.

21. the lighting device as any one of above-mentioned claim 11 to 20, it is characterised in that the interior table of the reflector Face is coated with the reflectorized material of light.

22. the lighting device as any one of above-mentioned claim 11 to 20, it is characterised in that the dispersing element is by saturating Material of the light rate in the range of 82% to 95% is made.

23. the lighting device as any one of above-mentioned claim 11 to 20, it is characterised in that the lighting device UGR values are equal to or less than 19.