CN203309718U

CN203309718U - Modular flat lamp

Info

Publication number: CN203309718U
Application number: CN201320344602XU
Authority: CN
Inventors: 徐志明; 李明锁
Original assignee: JIANGSU RUIFENG ELECTRONIC PRODUCTS Co Ltd
Current assignee: JIANGSU RUIFENG ELECTRONIC PRODUCTS Co Ltd
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2013-11-27
Anticipated expiration: 2023-06-14

Abstract

The utility model relates to a modular flat lamp comprising at least one flat lamp module, wherein the flat lamp module comprises a PCB (Printed Circuit Board) board and a light guide plate suitable for the lower end of the PCB board; the inner ring of a central through hole of the light guide plate is overturned upwards and is arranged to be adjacent to LEDs (Light Emitting Diode) annularly and uniformly distributed on the PCB board vertically; a plurality of edgefolds distributed in central symmetry are arranged on the light guide plate to achieve a function of steering for multiple time to guide light so as to emit the light from the light guide plate as much as possible to illuminate and distribute the light in multiple layers and further expand the astigmatism area, and the light is soft and uniform; meanwhile, if one LED is damaged, the visual effect of the whole light guide plate is not affected. A single-circle or multi-circle light emitting structure is adopted in the utility model, and the light guide plate can be designed to into square, circle or other shapes. The light guide plate of the modular flat lamp provided by the utility model is designed to a structure only having light reflecting coating while needing no diffusion point, reflection plate or film, diffusion plate and the like, thereby being convenient to assemble and lowering the cost. Accumulated dust in the light guide plate generates no effect on illumination effect.

Description

The modular flat lamp

Technical field

The utility model relates to a kind of light fixture, particularly relates to the modular flat lamp that adopts LED or other miniature lamp bead to form.

Background technology

Existing LED flat lamp is divided into according to illumination mode: two kinds of side entering type and straight-down negative LED flat lamp.

Side entering type LED flat lamp is mainly by the frame support, the diffuser plate set gradually up and down, reflector, LGP, and a plurality of lamp bars that are oppositely arranged with the edge of LGP respectively, and drive and form.The topmost function of LGP is will be by the direction of light navigation designing, and optical material has PS polystyrene, the poly-carbonic acid vinegar of PC, PMMA (poly-methyl methacrylate vinegar) acrylic material etc.The deficiency of side entering type flat lamp is mainly: the first, and it is very high that efficiency is not allowed to be easy to do, and area is not more greatly more allowed to be easy to do.The second, weight is heavier, and price is higher.LGP is the core of side entering type flat lamp, and it is high that the cost ratio straight-down negative is wanted; The 3rd, higher to the LGP quality requirement, if design badly, bright in the middle of there will be, both sides are dark, or advance plain edge bright border is arranged, or the phenomenon such as different angles brightness is inconsistent, affect lighting quality.The 4th, unfailing performance is relatively poor, because LGP, reflective printing ink and reflectance coating are in higher temperature all the time, is easy to aging yellowing, causes light emission rate to reduce, and lamp life is had a greatly reduced quality.The 5th, the lamp bar arranges in opposite directions, and the light source utilization rate is lower.

Straight-down negative LE D flat lamp is comprised of frame support, diffuser plate, the plane that drives, be furnished with the LED particle.Straight-down negative LED flat lamp structure and side entering type are similar, and just light source is evenly distributed on the back of diffuser plate, compares side entering type, can not do very thinly, the distance of light source and diffuser plate can not be too near, so whole lamp size is thicker, but efficiency is high more a lot of than side entering type.The main weak point of straight-down negative flat lamp is to do too thinly, between LED light source and diffuser plate, certain spacing will be arranged, otherwise light fixture can produce bright spot, this certainly will cause the thickness of light fixture to increase, the cost of lamp outer casing is and then increased, and it is not good that the outward appearance of light fixture also can seem.And thickness increased, just increased the delivering path of light, the efficiency of light fixture is reduced.Because the lamp pearl is to be fixed on postnotum, if postnotum full wafer aluminium base, cost will be very high so, if with the aluminium base of bar shaped, fixing and location etc. is again a problem.If the postnotum of straight-down negative flat lamp is used the aluminium sheet of large face, also to consider to lift for a long time the problems such as postnotum bending.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of simple in structure, module number can arbitrarily increase and decrease, it is convenient to change, the light source utilization rate is higher modular flat lamp.

In order to address the above problem, the utility model provides a kind of modular flat lamp, comprises at least one flat lamp module; This flat lamp module comprises: pcb board is suitable for the LGP of this pcb board lower end; The inner ring of the center through hole of LGP upwards turnover and with pcb board on ringwise and the neighbouring setting of equally distributed LED; On LGP, have a plurality of flangings that Central Symmetry distributes, to realize repeatedly turning to the function of leaded light, namely realized the multi-turn ray structure, light is penetrated to the LGP illumination as far as possible, and make the light Multi-layers distributing, and then enlarged emissive surface, light is softer, even; If exist indivedual LED to damage simultaneously, do not affect the visual effect of whole LGP.

As preferred embodiment, described pcb board is fixed on the bottom of a heat sink, and this heat sink is connected on the frame support by insulating part.

As further preferred embodiment, the part in the center through hole that is in LGP on described pcb board also is provided with a plurality of LED; The center through hole of described LGP is provided with the inner ring light conductor, and the lower surface of this inner ring light conductor is suitable for covering the center through hole of described LGP.

As further preferred embodiment, described inner ring light conductor central authorities are fixed with bolt, this inner ring light conductor by described bolt be threaded io described heat sink bottom, simultaneously described LGP is fixed on to described heat sink bottom.

As further preferred embodiment, described LGP is rounded or square.

As further preferred embodiment, between heat sink and frame support, there are a plurality of ventilating openings, on heat sink, be evenly distributed with a plurality of ventilation pod apertures, namely form heat dissipation channel, cold air enters from each ventilation pod apertures, from above-mentioned ventilating opening, discharges after heat exchange.

As further preferred embodiment, on described heat sink, be fixed with power supply, described frame support is provided with backboard, and described power supply is located at this backboard below.

As further preferred embodiment, the end face of described LGP and inner ring light conductor is coated with reflectance coating.

As further preferred embodiment, the part away from described center through hole of described LGP is provided with at least 2 flangings.

As further preferred embodiment, each power supply parallel connection in the flat lamp module of described a plurality of adjacent settings, namely select the power supply of respective numbers according to module number; Due to a plurality of lower powered power supply price sums, be less than the price of single large power supply, therefore can further save cost.

The utility model has positive effect with respect to prior art:

(1) illuminator of the present utility model is the design of changeable type module, can realize installing, change or upgrading without instrument;

(2) in the utility model employing, mind-set surrounding light guide module designs and vertically turns horizontal leaded light design, makes module simply fixing, can utilize the module realization flat lamp of a block size arbitrarily;

(3) flat lamp of the present utility model is safe: heat sink is connected on the frame support by insulating part, has realized electrical body and the space isolation that can contact housing parts, stops the various electric shock risks that may cause;

(4) flat lamp radiating effect of the present utility model is fabulous: full base plate heat radiation, and thermal convection holes is set, can easily realize powerful lighting requirement (flat lamp as 60*60cm can be realized the power more than 100W);

(5) the utility model adopts the superthin structure design, but built-in power without furred ceiling or open installing hole, do not need mounting bracket directly on ceiling or metope, to carry out the veneer installation, greatly facilitates use;

(6) flat lamp of the present utility model is easy to maintenance, does not need instrument or professional electrician's knowledge, can easily change any parts are convenient;

(7) the utility model adopts the single-turn or multi-turn ray structure, square, circular or other shapes that LGP can be designed to.LGP of the present utility model is designed to only have reflecting coating, does not need to spread the structure of point, reflecting plate or film, diffuser plate etc., ease of assembly and reduced cost.The inner dust stratification of LGP, do not affect illuminating effect;

(8) on LGP, have a plurality of flangings that Central Symmetry distributes, to realize repeatedly turning to the function of leaded light, light is penetrated to the LGP illumination as far as possible, reduce as far as possible the light that is incident upon the LGP end face, improved light utilization, and make the light Multi-layers distributing, and then enlarged emissive surface, light is softer, even; If exist indivedual LED to damage simultaneously, do not affect the visual effect of whole LGP;

(9) flat lamp of the present utility model adopts with light-emitting area and is equal to big or small heat sink, between heat sink and frame support, there are a plurality of ventilating openings, on heat sink, be evenly distributed with a plurality of ventilation pod apertures, namely form heat dissipation channel, cold air enters from each ventilation pod apertures, after heat exchange, discharge from above-mentioned ventilating opening, so good heat dissipation effect and uniform heat distribution, the heat island problem that side leaded light flat lamp of the prior art can only utilize the frame heat radiation to form solved.

The accompanying drawing explanation

In order to clearly demonstrate innovative principle of the present utility model and than the technical advantage of existing product, below by means of accompanying drawing possible embodiment of limiting examples explanation by the described principle of application.In the drawings:

Fig. 1 is the end face structure figure of modular flat lamp of the present utility model, and LGP wherein is square;

Fig. 2 is the another kind of end face structure figure of modular flat lamp of the present utility model, and LGP wherein is rounded;

Fig. 3 is the cross-sectional view of the modular flat lamp in above-mentioned Fig. 1 or Fig. 2;

Reference numeral: 1: illuminating module support, 2: bracket screw, 3:LED, 4:PCB plate, 5: backboard, 6: heat sink, 7: power supply, 8: frame support, 9: insulating part, 10: reflective coating, 11: LGP, 12: inner ring light conductor, 13: bolt, 14: the flat lamp module.

The specific embodiment

Embodiment mono-

The modular flat lamp of the present embodiment, comprise at least one flat lamp module 14 as shown in Figure 3; This flat lamp module 14 comprises: pcb board 4 is suitable for the LGP 11 of these pcb board 4 lower ends; The inner ring of the center through hole of LGP 11 upwards turnover and with pcb board 4 on ringwise and the neighbouring setting of equally distributed LED3; On LGP 11, have a plurality of flangings that Central Symmetry distributes, to realize repeatedly turning to the function of leaded light, light is penetrated to the LGP illumination as far as possible, and make the light Multi-layers distributing, namely realized the multi-turn ray structure, and then enlarged emissive surface, light is softer, even; If exist indivedual LED to damage simultaneously, do not affect the visual effect of whole LGP.

Described pcb board 4 is fixed on the bottom of a heat sink 6, and this heat sink 6 is connected on frame support 8 by insulating part 9.Between heat sink 6 and frame support 8, there are a plurality of ventilating openings, on heat sink, are evenly distributed with a plurality of ventilation pod apertures.

Part in the center through hole that is in LGP 11 on described pcb board 4 also is provided with a plurality of LED; The center through hole of described LGP 11 is provided with inner ring light conductor 12, and the lower surface of this inner ring light conductor 12 is suitable for covering the center through hole of described LGP 11.

Described inner ring light conductor 12 central authorities are fixed with bolt 13, and this inner ring light conductor 12 is by described bolt 13 and be threaded io described heat sink 6 bottoms, simultaneously described LGP 11 is fixed on to described heat sink 6 bottoms.

On described heat sink 6, be fixed with power supply 7, described frame support 8 is provided with backboard 5, and described power supply 7 is located at this backboard 5 belows.

The end face of described LGP 11 and inner ring light conductor 12 is coated with reflectance coating 10.

The part away from described center through hole of described LGP 11 is provided with at least 2 flangings.

Each power supply 7 parallel connections in the flat lamp module 14 of described a plurality of adjacent settings, namely select the power supply of respective numbers according to module number; Due to a plurality of lower powered power supply price sums, be less than the price of single large power supply, therefore can further save cost.

Obviously, above-described embodiment is only for the utility model example clearly is described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And these belong to apparent variation or the change that spirit of the present utility model extended out and still are among protection domain of the present utility model.

Claims

1. a modular flat lamp, is characterized in that comprising at least one flat lamp module; This flat lamp module comprises: pcb board is suitable for the LGP of this pcb board lower end; The inner ring of the center through hole of LGP upwards turnover and with pcb board on ringwise and the neighbouring setting of equally distributed LED; On LGP, have a plurality of flangings that Central Symmetry distributes.

2. modular flat lamp according to claim 1, it is characterized in that: described pcb board is fixed on the bottom of a heat sink, and this heat sink is connected on the frame support by insulating part.

3. modular flat lamp according to claim 2 is characterized in that: the part in the center through hole that is in LGP on described pcb board also is provided with a plurality of LED; The center through hole of described LGP is provided with the inner ring light conductor, and the lower surface of this inner ring light conductor is suitable for covering the center through hole of described LGP.

4. modular flat lamp according to claim 3, it is characterized in that: described inner ring light conductor central authorities are fixed with bolt, this inner ring light conductor is by described bolt and be threaded io described heat sink bottom, simultaneously described LGP is fixed on to described heat sink bottom.

5. modular flat lamp according to claim 1, it is characterized in that: described LGP is rounded or square.

6. modular flat lamp according to claim 2, is characterized in that: between described heat sink and frame support, have a plurality of ventilating openings, on heat sink, be evenly distributed with a plurality of ventilation pod apertures.

7. modular flat lamp according to claim 1, it is characterized in that: on described heat sink, be fixed with power supply, described frame support is provided with backboard, and described power supply is located at this backboard below.

8. modular flat lamp according to claim 3, it is characterized in that: the end face of described LGP and inner ring light conductor is coated with reflectance coating.

9. modular flat lamp according to claim 3, it is characterized in that: the part away from described center through hole of described LGP is provided with at least 2 flangings.

10. modular flat lamp according to claim 3, is characterized in that: each power supply parallel connection in the flat lamp module of described a plurality of adjacent settings.