CN206786504U - flat lamp - Google Patents

Abstract

The utility model provides a kind of flat lamp, and above-mentioned flat lamp includes：Lamp door, light source, light distribution element, the lamp door include：Side wall, chassis, the face relative with the chassis is the exiting surface of the flat lamp on the lamp door, and the light source is arranged in the side wall, and the light distribution element is covered on the light source, and the light of the light source is at least partly reflected to the exiting surface in the chassis.Not only uniform in light emission, lamp body are frivolous for above-mentioned flat lamp, and cost is low, and practicality is stronger.

Description

Flat lamp

Technical field

Lighting field is the utility model is related to, more particularly to a kind of flat lamp.

Background technology

At present, the flat lamp of in the market substantially has two kinds：A kind of is conventional panel lamp of the height for 60mm or so, this flat Plate lamp realizes the uniformity of light output surface brightness by a large amount of LED accumulations；Another kind is ultra-thin panel lamp of the height for 10mm or so, This flat lamp realizes light output surface brightness uniformity by light guide plate.

Under normal circumstances, the conventional panel lamp for height for 60mm or so, in order to solve exiting surface brightness uniformity Problem can use substantial amounts of LED, can so increase the cost of flat lamp and increase the weight of lamp body, and not be suitable for smallpox Very short finishing condition.And for height 10mm or so ultra-thin panel lamp, then require to use expensive light guide plate, simultaneously In order to meet to climb electric requirement, service efficiency is also required than relatively low insulating power supply, and then make it that whole lamp cost is high, light efficiency is low.

Utility model content

The utility model provides a kind of flat lamp to overcome above mentioned problem or solve the above problems at least in part.

According to one side of the present utility model, there is provided a kind of flat lamp, including：Lamp door, light source, light distribution element, institute Stating lamp door includes：Side wall, chassis, the face relative with the chassis is the exiting surface of the flat lamp on the lamp door, the light Source is arranged in the side wall, and the light distribution element is covered on the light source, and the light source is at least partly reflected in the chassis Light is to the exiting surface.

Alternatively, one end of the light distribution element is provided with the groove for housing the light source, the bottom of the groove Relative to the light source in the first raised cambered surface；The other end of the light distribution element is relative to the light source in second to be recessed Cambered surface, the second cambered surface middle part is then to the direction away from the light source in the 3rd raised cambered surface.

Alternatively, the light collection for the injection light distribution element incidence surface that the light source is sent is by the light distribution element Lower edge light, top edge light and core light, projected by the exiting surface bottom of the light distribution element described following Edge light exposes to the core of the exiting surface of the flat lamp, as described in being projected the exiting surface top of the light distribution element Top edge light exposes to the chassis, and the exiting surface of the flat lamp is reflexed to by the chassis, by the light distribution element The core light projected in the middle part of exiting surface is exposed on the exiting surface of the flat lamp close to the light distribution element In preset range.

Alternatively, the preset range is 1/3rd models on the exiting surface of the flat lamp close to the light distribution element In enclosing.

Alternatively, reflection protrusion or reflective recess are at least partly provided with the chassis.

Alternatively, raised or sunken reflector is at least partly provided with the chassis.

Alternatively, it is in default angle between the light distribution element and the side wall.

Alternatively, default angle≤10 °.

Alternatively, the light distribution element is fixed in the side wall.

Alternatively, above-mentioned flat lamp also includes light source board, and the light source is arranged on the light source board, the light distribution element It is fixed on the light source board.

Alternatively, above-mentioned flat lamp also includes：Diffuser plate, the diffuser plate are arranged at the exiting surface of the flat lamp.

The utility model provides a kind of flat lamp, and light source is arranged in the side wall of lamp door by above-mentioned flat lamp, and will be matched somebody with somebody Optical element is covered on light source, it is achieved thereby that the illumination effect of brightness uniformity, and with the advantages of inexpensive, light efficiency is high.Should The whole lamp lamp body of flat lamp is light, can not only reduce infrastructure cost, and applies also for the shorter finishing condition of smallpox, the scope of application Extensively.

Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature It can be become apparent with advantage, below especially exemplified by specific embodiment of the present utility model.

According to the accompanying drawings will be more to the detailed description of the utility model specific embodiment, those skilled in the art Add clear of the present utility model above-mentioned and other purposes, advantages and features.

Brief description of the drawings

By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this practicality New limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：

Fig. 1 is the flat lamp diagrammatic cross-section according to the utility model one embodiment；

Fig. 2 is the light distribution schematic diagram by light distribution element according to the utility model one embodiment；

Fig. 3 is the light distribution element diagrammatic cross-section according to the utility model one embodiment；

Fig. 4 is in the schematic diagram of default angle between light distribution element and side wall according to the utility model one embodiment；

Fig. 5 is in the signal of default angle between light distribution element and side wall according to another embodiment of the utility model Figure；

Fig. 6 is the structural representation that reflection protrusion is provided with the chassis according to the utility model one embodiment；

Fig. 7 is the structural representation that reflective recess is provided with the chassis according to another embodiment of the utility model；

Fig. 8 is the structural representation that raised reflector is set on chassis according to the utility model further embodiment.

Embodiment

The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure Completely it is communicated to those skilled in the art.

The utility model embodiment provides a kind of flat lamp, as shown in figure 1, provided according to the utility model embodiment Flat lamp includes：Lamp door 10, light source 20, light distribution element 30.Wherein, lamp door 10 includes：Side wall 11 and chassis 12, on lamp door 10 with The relative face in chassis 12 is the exiting surface 40 of flat lamp, and light source 20 is then arranged in side wall 11, and light distribution element 30 covers on light source 20 On, and the light of at least part reflection source 20 of chassis 12 is to exiting surface 40.

In the flat lamp that the present embodiment provides, light source 20 has been arranged in the side wall 11 of lamp door 10, and on light source 20 Cover light distribution element 30, at the same used can at least part reflection source 20 light chassis 12, using said structure The illumination effect of brightness uniformity can be achieved, and cost is low, light efficiency is high.

The shape of lamp door 10 can need to be configured according to different designs, such as：Circular, ellipse, polygon or Other irregular shapes.Preferably, as shown in figure 1, lamp door 10 can be shaped into square, the now wheel of side wall 11 Exterior feature is square, and the profile on chassis 12 is also preferably square, but the profile of actual top bottom-disc 12 could be arranged to arbitrarily Shape.Use the shape that the lamp door 10 of square means flat lamp both can be using square plate lamp also for square Independent is illuminated, and can also be mutually combined and be illuminated, and is embedded in also more convenient during ceiling.Similarly, lamp door 10 is big It is small to need to be configured according to different designs, it is preferable that it may be sized to 600mm × 600mm × 30mm.

When side wall 11 is when being shaped as polygon, such as square, light can be set at least one side of side wall 11 Source 20, and in actual applications, in order to obtain different illuminating effects, light source 20 can be set on continuous several sides, can To set light source 20 on symmetrical one group or several groups of sides, light source 20 can also be all set on all sides.It is new in this practicality In the embodiment of type, as shown in figure 1, being respectively provided with light source 20 on one group of opposite side of side wall 11.Preferably, flat lamp may be used also Including light source board 50, when setting light source 20, LED light source can be used, multiple LED are arranged on light source board 50, and incited somebody to action Light source board 50 is arranged on the side of side wall 11, so as to realize the setting light source 20 on the side of side wall 11.

In addition, it is necessary to explanation, in the above-described embodiments, exiting surface 40 is the face on an optical significance, is not deposited In the physical unit of reality.Certainly, optionally, a diffuser plate can also be set on exiting surface 40, if set this expansion Falling apart can determine according to being actually needed.

In order to realize more preferable optical effect, the light distribution element 30 that the utility model embodiment is provided can be real by lens It is existing, it is preferable that can be by being improved to low-angle TIR (Total Internal Reflection, total internal reflection) lens Realize.Fig. 2 shows the cross-sectional view of light distribution element 30 of the utility model embodiment, as described in Figure 2, light distribution element 30 One end is provided with the groove 31 for housing light source 20, and the bottom of groove 31 is relative to light source 20 in the first raised cambered surface 32； And second cambered surface 33 of the other end of light distribution element 30 relative to light source 20 in depression, the middle part of the second cambered surface 33 is then to away from described The direction of light source is in the 3rd raised cambered surface 34.Wherein, the inner surface of groove 31 can as the incidence surface of light distribution element 30, second The combination of the cambered surface 34 of cambered surface 33 and the 3rd can be as the exiting surface of light distribution element 30.

Following functions, when light distribution element 30 is covered on light source 20, light can be achieved in structure based on above-mentioned light distribution element 30 After source 20 emits beam, the incidence surface of light distribution element 30 is incident to, as shown in figure 3, what light distribution element 30 can send light source 20 Light collection is lower edge light 21, top edge light 22 and core light 23.Wherein, lower edge light 21 is by matching somebody with somebody The light that the exiting surface bottom of optical element 30 is projected, top edge light 22 send for the exiting surface top by light distribution element 30 Light, lower edge light 21 and top edge light 22 are projected by the second cambered surface 33 in light distribution element 30.Core Light 23 is the exiting surface middle part light that i.e. the 3rd cambered surface 34 projects by light distribution element 30.Lower edge light 21 exposes to flat The core of the exiting surface 40 of plate lamp, top edge light 22 then expose to chassis 12, and going out for flat lamp is reflexed to by chassis 12 Smooth surface 40, because the core of light distribution element 30 designs for polarisation, therefore, core light 23 exposes to going out for flat lamp In smooth surface 40 in the preset range of light distribution element 30.Preferably, core light 23 can be adjusted to expose to flat On the exiting surface 40 of plate lamp in the range of 1/3rd of light distribution element 30.According to different situations, central part can be adjusted The scope that light splitter 23 is exposed on exiting surface 40, the utility model do not limit.In actual applications, there can also be other knots The light distribution element 30 that structure can substitute said structure realizes this function, does not repeat one by one herein.

It can make it that the light more than half is shone directly on the exiting surface 40 of flat lamp using above-mentioned light distribution element 30, And then the optical efficiency of whole lamp is substantially improved.In the specific implementation, it is necessary to which explanation, other are any kind of with similar work( The light distribution element 30 of energy can use, and the utility model does not limit.

In actual applications, the thickness of flat lamp can be adjusted according to the height and the width of light source board 50 of light distribution element 30 It is whole, thus can according to different application scene to the demand of flat lamp thickness to the height of light distribution element 30 and the width of light source board 50 Different size of design is carried out, the utility model does not limit.

In order to cause the brightness of flat lamp more uniform under the premise of flat lamp thickness is less, light distribution element 30 can be with Set between side wall 11 in default angle, as shown in Figure 4, Figure 5.Preferably, it is default between light distribution element 30 and side wall 11 Angle can be with≤10 °.Wherein, the opening of the angle of light distribution element 30 and side wall 11 can be towards exiting surface 40, can also court To chassis 12, the utility model does not limit.In the specific implementation, it can choose that screw is fixed, the mode such as adhesion is by luminous intensity distribution member Part 30 is directly anchored in side wall 11, by increasing supporter in the side of light distribution element 30 or can be made using other modes It is in default angle between light distribution element 30 and side wall 11.Light distribution element 30 can also be fixed on light source board 50, by changing Angle between darkening source plate 50 and side wall 11 makes to be in default angle between light distribution element 30 and side wall 11, it is, of course, also possible to Using other modes, do not repeat one by one herein.And select angle between which kind of set-up mode and light distribution element 30 and side wall 11 Big I changed accordingly according to different light distribution elements 30 or different flat lamps, the utility model does not limit.

, it is necessary to which the size of light distribution element wants larger just can guarantee that highly uniform to go out light efficiency in above-mentioned each embodiment Fruit, otherwise exiting surface core have dark space, light distribution element becomes large-sized, and the thickness of corresponding flat lamp will also increase. For the consideration for the thickness for reducing flat lamp, alternatively, reflection protrusion or reflective recess can be partly provided with chassis 12, point Not as shown in Figure 6,7.Top edge light 22 mainly can be reflected by the reflection protrusion or reflective recess on chassis, finally be irradiated To exiting surface 40.Therefore, after reflection protrusion or reflective recess is being increased on chassis 12, top edge light 22 can be small angle Spend light.That is, after increasing reflection protrusion or reflective recess on chassis 12, can be in 30 less situation of light distribution element The lower uniform in light emission for ensureing exiting surface 40, so as to reduce the size of light distribution element 30, and then reduce the overall thick of flat lamp Degree.It should be noted that the degree of reflection protrusion and reflective recess and position on chassis 12 can be according to light distribution elements 30 and the overall different situations of flat lamp and adjust, the utility model does not limit.

Reflection protrusion or reflective recess on chassis 12 can be integral with chassis, if in order to cause the outer of flat lamp See regular, raised or sunken reflector can be provided with chassis 12, i.e., using raised or sunken reflector as one kind Structural fittings and chassis 12 are separately positioned.Fig. 8 is the reflector that projection is provided with chassis 12, as shown in figure 8, directly will Raised reflector is fixed on chassis 12, and certainly, above-mentioned raised reflector is set on chassis 12 is a variety of set-up modes One kind, can also there is other set-up modes in actual applications, and the utility model does not limit.And work as and set on chassis 12 During the reflector of depression, the mounting hole of settable recessed reflector can be left on chassis 12, recessed reflector is embedded in bottom In disk 12, or other set-up modes are used, do not repeated one by one herein.

The utility model embodiment provides a kind of flat lamp, and light distribution element and light source have been arranged on into flat lamp both sides, Raised or sunken reflector is also provided with chassis, the light that light source is sent becomes low-angle light after light distribution element Line, a part of light are shone directly on diffuser plate, and another part light is irradiated on chassis, by chassis reflection finally by Diffuser plate is emitted.Light source and light distribution element are set in flat lamp side wall using what the utility model embodiment provided, and coordinated The optical plan of chassis reflection realizes the light-out effect of whole lamp, has the characteristics that cost is low, lamp body is frivolous, uniform in light emission.

So that using exemplified by LED light source, compared to the flat lamp of conventional 60mm or so height, the utility model embodiment is carried LED can be hidden into side by the flat lamp of confession, can be focused on LED on two light source boards as light source, thus will not be by It is formed on granular sensation and can also reduces by about 80% quantity and cost with the LED of many quantity, pcb board, because lamp body is more frivolous, Infrastructure cost also has corresponding reduction.And compared to the flat lamp of ultra-thin 10mm or so height, carried in the utility model embodiment The optical plan gone out is the increase in the relatively low light distribution element of price without using expensive light guide plate, and cost can drop significantly It is low.Lamp body thickness can be controlled freely, and pcb board also has the requirement that enough spaces meet creep age distance, while can use effect The higher non-isolated power supply of rate, cost can be reduced further again.

In the specification that this place provides, numerous specific details are set forth.It is it is to be appreciated, however, that of the present utility model Embodiment can be put into practice in the case of these no details.In some instances, be not been shown in detail known method, Structure and technology, so as not to obscure the understanding of this description.

Similarly, it will be appreciated that in order to simplify the disclosure and help to understand one or more in each utility model aspect Individual, in the description to exemplary embodiment of the present utility model above, each feature of the present utility model is divided together sometimes Group is into single embodiment, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following meaning Figure：The requires of the utility model features more more than the feature being expressly recited in each claim i.e. claimed. More precisely, as the following claims reflect, it is in terms of utility model single less than disclosed above All features of embodiment.Therefore, it then follows thus claims of embodiment are expressly incorporated in the specific embodiment party Formula, wherein each claim is used as separate embodiments of the present utility model in itself.

In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments In included some features rather than further feature, but the combination of the feature of different embodiments means in this practicality newly Within the scope of type and form different embodiments.For example, in detail in the claims, embodiment claimed it is any One of mode can use in any combination.

The utility model is limited it should be noted that above-described embodiment illustrates rather than to the utility model, And those skilled in the art can design alternative embodiment without departing from the scope of the appended claims.In right In it is required that, any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" is not arranged Except element or step not listed in the claims being present.Word "a" or "an" before element does not exclude the presence of more Individual such element.The utility model can be by means of including the hardware of some different elements and by means of properly programmed Computer is realized.In if the unit claim of equipment for drying is listed, several in these devices can be by same One hardware branch embodies.The use of word first, second, and third does not indicate that any order.Can be by these lists Word is construed to title.

So far, although those skilled in the art will appreciate that herein it is detailed have shown and described it is of the present utility model more Individual exemplary embodiment, still, still can be public according to the utility model in the case where not departing from the spirit and scope of the utility model The content opened directly determines or derived many other variations or modifications for meeting the utility model principle.Therefore, this practicality is new The scope of type is understood that and regarded as to cover other all these variations or modifications.

Claims (11)

1. a kind of flat lamp, including：Lamp door, light source, light distribution element, the lamp door include：Side wall, chassis, on the lamp door with The relative face in the chassis is the exiting surface of the flat lamp, and the light source is arranged in the side wall, the light distribution element cover In on the light source, the light of the light source is at least partly reflected to the exiting surface in the chassis.

2. flat lamp according to claim 1, wherein, one end of the light distribution element is provided with for housing the light source Groove, the bottom of the groove is relative to the light source in the first raised cambered surface；The other end of the light distribution element is relative The second cambered surface in the light source in depression, the second cambered surface middle part is then to the direction away from the light source in the raised the 3rd Cambered surface.

3. flat lamp according to claim 1, wherein, the injection luminous intensity distribution that the light distribution element sends the light source The light collection of element incidence surface is lower edge light, top edge light and core light, by going out for the light distribution element The lower edge light that smooth surface bottom is projected exposes to the core of the exiting surface of the flat lamp, by the light distribution element Exiting surface top project the top edge light expose to the chassis, going out for the flat lamp is reflexed to by the chassis Smooth surface, the exiting surface of the flat lamp is exposed to by the core light projected in the middle part of the exiting surface of the light distribution element In the preset range of the upper close light distribution element.

4. flat lamp according to claim 3, wherein, the preset range is close institute on the exiting surface of the flat lamp State in the range of 1/3rd of light distribution element.

5. flat lamp according to claim 1, wherein, reflection protrusion or reflective concave are at least partly provided with the chassis Fall into.

6. flat lamp according to claim 1, wherein, raised or sunken reflection is at least partly provided with the chassis Device.

7. flat lamp according to claim 1, wherein, it is in default angle between the light distribution element and the side wall.

8. flat lamp according to claim 7, wherein, default angle≤10 °.

9. flat lamp according to claim 7, wherein, the light distribution element is fixed in the side wall.

10. flat lamp according to claim 1, wherein, in addition to light source board, the light source be arranged on the light source board On, the light distribution element is fixed on the light source board.

11. flat lamp according to claim 1, wherein, in addition to：Diffuser plate, the diffuser plate are arranged on the flat board At the exiting surface of lamp.