CN209622589U - A kind of LED panel lamp - Google Patents

Abstract

The utility model relates to a kind of LED panel lamps, including panel frame, backboard and light source board, the supporting part that the panel frame has cricoid side wall and extended in frame from the periphery of light emission side one end of side wall, the supporting part is the bearing surface being arranged towards backlight side away from the top surface of light emission side, and diffuser plate, light guide plate and the reflector being cascading toward backlight side direction are provided on the bearing surface；The backboard is fixed on the panel frame；The described light source board, which is set to, also has the light-absorption layer for being formed directly on the bearing surface and covering the bearing surface on the bearing surface of panel frame described in the gap between the light guide plate and the side wall of the panel frame, to solve the problems, such as that bright border occurs in the inside edge of existing panel light frame.

Description

A kind of LED panel lamp

Technical field

The utility model relates to lighting areas, are specifically related to a kind of LED panel lamp.

Background technique

LED panel lamp is soft, comfortably bright without blinding due to having the characteristics that energy conservation, uniform-illumination, light, and extensive Applied in the fields such as ceiling decoration illumination and wall fitting illumination.

In the prior art, LED panel lamp generally comprises frame, LED light source board and light guide plate, and LED light source board is fixed on side To emit beam on the inner sidewall of frame；Light guide plate is installed in the accommodating cavity that four frames enclose to send out LED lamp panel Light out is exported and is uniformly dissipated.But existing panel light due between light guide plate and panel light frame structure it is not compact, inside casing There are the gaps of light transmission at side, when so that LED light source shining, have some light that can leak out and cause on panel light side from the gap There is the problem of bright border in the inside edge of frame, and especially in the case where low-light level, bright border phenomenon is particularly evident.At present in industry Processing mode be all this light leakage is solved the problems, such as by improving the assembly precision between light guide plate and panel light frame, but by In the accuracy of manufacture the problem of, the problem of this light leakage, more or less all exists.

Utility model content

The utility model is intended to provide a kind of LED panel lamp, bright with the inside edge appearance for solving existing panel light frame The problem of side.

Concrete scheme is as follows:

A kind of LED panel lamp, comprising:

Panel frame, the panel frame axial sides are respectively light emission side and backlight side, which has cricoid side wall And the supporting part extended in frame from the periphery of light emission side one end of side wall, the supporting part are direction away from the top surface of light emission side The bearing surface of backlight side setting, be provided on the bearing surface diffuser plate being cascading toward backlight side direction, light guide plate and Reflector；

Backboard, the backboard are fixed on the panel frame, and by the diffuser plate being set on bearing surface, light guide plate and anti- Tabula rasa is fixed on the panel frame；

Light source board, has several LED light sources on the light source board, which is set to the light guide plate and the panel In gap between the side wall of frame, and the LED light source on the light source board is emitted towards the side of the light guide plate；The panel frame Bearing surface on also there is the light-absorption layer that is formed directly on the bearing surface and covers the bearing surface.

Further, the panel frame is made of aluminum material, and the light-absorption layer on bearing surface is the bearing surface via sharp Light blackening process forms.

Further, the backboard includes backboard body and is extended from the backboard body periphery toward bearing surface direction Side plate, with the clamping block of the projecting inward setting of multiple past frames on the inner wall of the side wall, the free end of the side plate with it is described Bearing surface offsets, and the clamping block and the backboard body offset and the backboard are fixed on the panel frame, the light Source plate is fixedly mounted on the inner wall of the side plate.

Further, the middle part of the backboard body is recessed toward bearing surface direction and is offseted with the reflector.

LED panel lamp provided by the utility model has the advantage that the utility model provides compared with prior art LED panel lamp form light-absorption layer on the bearing surface of panel frame, when which can shine LED light source from diffuser plate and Most of light absorption that gap between bearing surface leaks out, therefore asking for bright border will not occur in the inside edge of panel light frame Topic.

Detailed description of the invention

Fig. 1 shows the cross-sectional view of LED panel lamp in embodiment 1.

Fig. 2 shows the enlarged drawings at A in Fig. 1.

Fig. 3 shows the curve graph for the brightness restrictive curve for having light side lamps and lanterns that the first LED panel lamp measures.

Fig. 4 shows the curve graph for the brightness restrictive curve for having light side lamps and lanterns that second of LED panel lamp measures.

Fig. 5 shows the curve graph for the brightness restrictive curve for having light side lamps and lanterns that the third LED panel lamp measures.

Fig. 6 shows the schematic diagram of the LED panel lamp in embodiment 2.

Fig. 7 shows the partial enlarged view assembled between LED panel lamp backboard and panel frame in embodiment 2.

Specific embodiment

To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.

Now in conjunction with the drawings and specific embodiments, the present invention will be further described.

Embodiment 1

As depicted in figs. 1 and 2, a kind of LED panel lamp is present embodiments provided, which includes panel frame 10, back Plate 20, diffuser plate 30, light guide plate 40, reflector 50, light source board 60 and LED light source 70.

Wherein, 10 axial sides of panel frame are respectively light emission side 10a and backlight side 10b, which has ring The side wall 100 of shape and the supporting part 110 extended in frame from the periphery of light emission side one end of side wall 100, the supporting part 110 back Top surface from light emission side is the bearing surface 112 being arranged towards backlight side, is provided on the bearing surface 112 toward backlight side direction successively Diffuser plate 30, light guide plate 40 and the reflector 50 being stacked.Fig. 1 and panel frame shown in Figure 2 10 are the panel frame of rectangle, But not limited to this, can also go to be other shapes, such as circle, polygon etc..

Although be between diffuser plate 30 shown in Figure 2 and bearing surface 112 it is very close to each other, in actual production process In, panel frame 10, backboard 20, diffuser plate 30, the manufacturing tolerance of light guide plate 40 and reflector 50 and the tightness of assembly are all Meeting and cause more or less all there is gap between diffuser plate 30 and bearing surface 112, thus there are problems that light leakage.

The backboard 20 is fixed on the panel frame 10, and will be set to the diffuser plate on bearing surface 112 30, light guide plate 40 and reflector 50 be fixed on the panel frame 10.

There are several LED light sources 70, which is set to the light guide plate 40 and the face on the light source board 60 In gap between the side wall 100 of sheet frame 10, and the side of the LED light source 70 on the light source board 60 towards the light guide plate 40 goes out Penetrate, i.e., the LED panel lamp be side incident type panel light.The face of the structure of above-mentioned LED panel lamp and existing side incident type Plate modulated structure is essentially identical, main difference is that, the bearing of the panel frame 10 of LED panel lamp provided by the present embodiment Also there is the light-absorption layer 1120 for being formed directly on the bearing surface 112 and covering the bearing surface 112 on face 112.

Gap when light-absorption layer 1120 can shine LED light source between diffuser plate 30 and bearing surface 112 leaks out big Some light absorbs, therefore the problem of bright border will not occurs in the inside edge of panel light frame.

In the present embodiment, it is preferred that the panel frame 10 is made of aluminum material, the light-absorption layer on bearing surface 112 1120 are handled for the bearing surface 112 via laser blackening.Light-absorption layer 1120 can be realized by various ways, such as anodic oxygen Change, spray painting, marker blacking, the black tape that is sticked etc., but laser blackening processing has more advantage relative to other processing means.

Wherein, anodic oxidation blackening process is usually handled entire panel frame 10, and if only to bearing surface 112 It is individually handled, in complex process and at high cost, and if entire panel frame 10 all carries out anodic oxidation blackening process Have back so that entire panel frame 10 all blacks, and this can not meet the demand of client.

Although spray painting processing technique is relatively easy and cost is relatively low, need to other regions of bearing surface 112 into Row protection processing which results in the process time of spray painting processing is long, and is asked in assembly there are lacquer painting is easy to scratch and damaged Topic.

Although being handled by the way of marker blacking, technique is relatively easy and cost is relatively low, can only be using artificial The mode of blacking, the processing time is long, and the uniformity of each region blacking not can guarantee yet.

Although the mode technique for the black tape that is sticked is relatively easy and cost is relatively low, adhesive tape is sticked in bearing surface 112 Above and built on the sand, in assembly and transport, diffuser plate 30 can all lead to the shaking in the extruding and transportational process of adhesive tape Adhesive tape offset, this has resulted in adhesive tape and has been unable to maintain that on bearing surface 112, can not play the role of extinction, and glue well With the mobile residue glue generated it is also possible to the light that goes out to LED light source 70 impacts.

And the process costs for the light-absorption layer 1120 that laser blackening processing is formed are lower, the processing time is also shorter, are formed by The uniformity of light-absorption layer is also fine, and will not influence the assembly of existing LED panel lamp.

With reference to Fig. 3-Fig. 5, Fig. 3-Fig. 5 is measured by LED panel lamp about " brightness for having light side lamps and lanterns limits bent The curve graph of line ", the structure of these LED panel lamps structure as shown in Figure 1, size are 7.5 cun of side length of square shape Shape, and measured under same test environment, test macro be a distant place (EVERFINE) GO-R5000_V2 system _ V2.0.404.6.Its difference is only that in the LED panel lamp in Fig. 3 and Fig. 4 on the bearing surface of panel frame using laser blackening Mode forms light-absorption layer, and does not have light-absorption layer in the LED panel lamp in Fig. 5 on the bearing surface of panel frame.It is left in Fig. 3-Fig. 5 Lateral curvature line is the curve that the average brightness value at 45 ° of -85 ° of glare angles on the face C0/180 is drawn, and right side graph is C90/270 The curve that the average brightness value at 45 ° of -85 ° of glare angles is drawn on face.

Can be obtained from Fig. 3-Fig. 5, in same angle, the average brightness in the face C0/180 be greater than the face C90/270 this be by What is be all made of in these LED panel lamps is mode that bilateral enters light, i.e., has LED light source on the left and right sides, and two sides are then up and down There is no LED light source.Comparison diagram 3, Fig. 4 and Fig. 5, the average brightness in Fig. 5 on the face C0/180 are greater than C0/180 in Fig. 3 and Fig. 4 Average brightness on face, it is especially the most obvious at 85 ° of angles, this is because not having on the bearing surface of the LED panel lamp in Fig. 5 There is light-absorption layer, therefore panel frame edge has light leakage, influence of the light leakage at panel frame edge to 85 ° of angles is the most obvious. In addition, from the comparison of Fig. 3-Fig. 5 it can also be seen that, the spacing in Fig. 5 between the curve in the face C0/180 and the curve in the face C90/270 Maximum, this indicate Fig. 5 in LED panel lamp brightness uniformity be also it is worst, this is also the LED panel lamp in Fig. 5 Caused by the light leakage at panel frame edge.Therefore from the comparison of Fig. 3-Fig. 5 it is found that forming light-absorption layer on the bearing surface to panel frame The processing of the light leakage at edge is beneficial.

Embodiment 2

A kind of LED panel lamp is present embodiments provided, which is the LED panel lamp provided by embodiment 1 On the basis of the optimization design that carries out.With reference to Fig. 6 and Fig. 7, the backboard 20 is including backboard body 200 and by the backboard body The side plate 210 that 200 peripheries are extended toward 112 direction of bearing surface has multiple past frames projecting inward on the inner wall of the side wall 100 The clamping block 120 of setting, the free end of the side plate 210 offset with the bearing surface 112, the clamping block 120 and the back The back side of plate ontology 200 offsets and the backboard 20 is fixed on the panel frame 10, and the light source board 60 is fixedly mounted on On the inner wall of the side plate 210, i.e., the backboard 20 is fixed on panel frame 10 by way of connecting and fixing, this is without adopting It is locked with screw, convenient for the assembly of the LED panel lamp.

Preferred as the present embodiment one with reference to Fig. 7, the middle part of the backboard body 200 is recessed toward 112 direction of bearing surface And offseted with the reflector 50, so that there are preferably diffuser plate 30, light guide plate 40 and reflector 50 in the middle part of backboard body 200 Squeezing action, with guarantee assembly stability, and backboard body 200 week along between bearing surface 112 have biggish dress With space, convenient for the assembly of light source board 60.

Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details On the utility model can be made a variety of changes, be the protection scope of the utility model.

Claims (4)

1. a kind of LED panel lamp, comprising:

Panel frame, the panel frame axial sides are respectively light emission side and backlight side, the panel frame have cricoid side wall and The supporting part extended in frame from the periphery of light emission side one end of side wall, the supporting part are towards backlight away from the top surface of light emission side The bearing surface of side setting is provided with the diffuser plate being cascading toward backlight side direction, light guide plate and reflective on the bearing surface Plate；

Backboard, the backboard are fixed on the panel frame, and the diffuser plate, light guide plate and reflector that will be set on bearing surface It is fixed on the panel frame；

Light source board, has several LED light sources on the light source board, which is set to the light guide plate and the panel frame In gap between side wall, and the LED light source on the light source board is emitted towards the side of the light guide plate；It is characterized in that, institute Stating also has the light-absorption layer for being formed directly on the bearing surface and covering the bearing surface on the bearing surface of panel frame.

2. LED panel lamp according to claim 1, it is characterised in that: the panel frame is made of aluminum material, bearing Light-absorption layer on face is that the bearing surface is handled via laser blackening.

3. LED panel lamp according to claim 1, it is characterised in that: the backboard includes backboard body and by the back The side plate that plate ontology periphery is extended toward bearing surface direction, with the projecting inward setting of multiple past frames on the inner wall of the side wall Clamping block, the free end of the side plate offset with the bearing surface, the clamping block and the backboard body offset and will be described Backboard is fixed on the panel frame, and the light source board is fixedly mounted on the inner wall of the side plate.

4. LED panel lamp according to claim 3, it is characterised in that: the middle part of the backboard body is toward bearing surface direction It is recessed and is offseted with the reflector.