CN201269432Y

CN201269432Y - Translucent flat illumination device

Info

Publication number: CN201269432Y
Application number: CNU2008201635859U
Authority: CN
Inventors: 陈伟杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-29
Filing date: 2008-08-29
Publication date: 2009-07-08
Anticipated expiration: 2018-08-29

Abstract

The utility model discloses a plane lighting device with light transmittance, including a frame (1), a luminous plate (2) and a luminous device. The luminous plate (2) is connected at the frontal side of the frame (1); the luminous device comprises a plurality of circuit boards (4) and a plurality of pin-typed LEDs (5); the pin-typed LEDs (5) are parallel to the edges of luminous plate (2) and the frame (1); pins of the pin-typed LEDs (5) are welded directly on the board surfaces of the circuit boards (4) without welding holes; the two pins of the pin-typed LEDs (5) and a luminous body are all parallel to the circuit plate (1); and a plurality of circuit boards (4) are connected to a plurality of edges of the frame (1) respectively and flatly. The plane lighting device has the advantages of low production cost, super-thin thickness, perfect heat dispersing effect, high luminance, and comfortable and pleasant overall visual effect.

Description

The planar lighting device of printing opacity

Technical field:

The utility model relates to a kind of planar lighting device that is used for the printing opacity of technical fields such as outdoor advertising, building and interior decoration.

Background technology:

At present, existing on the market a kind of glass face can send the planar lighting device of versicolor printing opacity, this planar lighting device can be applied in technical fields such as outdoor advertising, building and interior decoration, thereby not only play the effect of advertising, and can also beautify and beautiful urban architecture and interior decoration.The prior art planar lighting device mainly comprises framework, glass, light-emitting device and bottom; Described glass is fixed on the front of framework; Described bottom is fixed on the reverse side of framework; Described light-emitting device is installed in the framework; Described light-emitting device comprises polylith wiring board and some pins type LEDs; Described wiring board is provided with the hole of inserting for the pins type LED pin; Described pins type LED pin is inserted in the hole perpendicular to the wiring board direction, and forms LED lighting circuit plate in the circuit board by fixing electrical connection of welding manner; Described polylith wiring board as LED lighting circuit plate is vertically connected on respectively on the limit of framework; It is parallel with the limit of glass, framework respectively when described pins type LED is vertical with wiring board with bottom; Described pins type LED can adopt the colored pins type LED with RGB three primary colors light source; Meanwhile, can be luminous in order to make the glass face, the prior art planar lighting device also impresses tiny ceramic dot matrix at the back side of glass, thus the direct internally transmission of light that effectively prevents the LED generation is gone out.

Adopt the planar lighting device of the printing opacity of above structure to have following three weak points in actual use:

1, though the pins type LED in the plane device of the printing opacity of said structure is and glass, the limit of framework is parallel with bottom, but owing to be used to be electrically connected the wiring board of pins type LED is the limit that is vertically mounted on framework, and consider the wiring problem of wiring board, the width dimensions of wiring board is again the gauge that is far longer than wiring board, therefore, when the thickness of pins type LED adds upper frame, glass, bottom, will cause the thickness of whole device blocked up behind the thickness of wiring board and pins type LED welding solder joint in the circuit board, thereby can not satisfy existing market to of the ultra-thin requirement of this device thickness less than 4mm, in order to address this problem, although we can adopt adopting surface mounted LED to substitute pins type LED, and the wiring board level is connected on the limit of framework, but the price comparison height of adopting surface mounted LED, if on this planar lighting device, use in a large number, will increase the production cost of this planar lighting device greatly;

2, because the pin of pins type LED in the planar lighting device of prior art printing opacity is to be welded after vertically being inserted in the hole of wiring board, thereby cause the contact area of LED pin and wiring board less, and be used for luminous pins type LED is a kind of heat-generating electronic elements, so the radiating effect of the planar lighting device of prior art printing opacity is not ideal enough;

3, there is the not good problem of above-mentioned radiating effect in the planar lighting device just because of the prior art printing opacity, therefore, the power of the pins type LED that uses in the planar lighting device of prior art printing opacity generally all smaller (generally being lower than 1W), this makes that the brightness ratio of planar lighting device of prior art printing opacity is lower, thereby has influenced the whole visual effect of this planar lighting device.

In addition, although the prior art planar lighting device by glass face when the back side of the glass tiny ceramic dot matrix of impression realizes that LED lights can be luminous requirement, when but LED does not produce light source when the light-emitting device in this device is not worked, such as by day, people will see the ceramic dot matrix at its back side by the glass face, thereby the planar lighting device that influences this printing opacity beautifies the effect with beautiful building and interior decoration.

The utility model content:

The technical problems to be solved in the utility model is, provides a kind of not only production cost low, and thickness is ultra-thin, and good heat dissipation effect, brightness height, the planar lighting device of the printing opacity that whole visual effect is comfortable, pleasing.

Technical solution of the present utility model is that a kind of planar lighting device with printing opacity of following structure is provided: it comprises framework, luminous plaque and light-emitting device; Described luminous plaque is connected the front of framework; Described light-emitting device comprises polylith wiring board and some pins type LEDs; Described pins type LED is parallel with the limit of luminous plaque and framework; The pin of described pins type LED directly is welded on the plate face of the wiring board that welding hole is not set; Two pins of described pins type LED are all parallel with wiring board with illuminator; Described polylith wiring board level respectively is connected on many limits of framework.

After adopting above structure, utility model has following remarkable advantage and beneficial effect:

1, not only two pins in the pins type LED and illuminator and luminous plaque in the utility model, the limit and the wiring board of framework are parallel, and wiring board is also parallel with the limit of luminous plaque and framework, in other words, wiring board becomes the thickness of wiring board from the width of original wiring board to the thickness effect of whole device, because the gauge of wiring board is far smaller than the width of wiring board, therefore, integral thickness of the present utility model has obtained significantly reducing, thereby make the utility model can satisfy existing market preferably the ultra-thin requirement of the thickness of device less than 4mm is promptly satisfied in the ultra-thin requirement of the planar lighting device of printing opacity; In addition, owing to the pins type LED that remains of the utility model use, therefore, production cost of the present utility model is lower;

2, we know, what the heat dissipation problem that solves LED at first needed to consider is heat transfer problem, next is only heat radiation, in other words, we need transfer heat to cooling mechanism earlier and get on and just can better dispel the heat, be vertically welded on the wiring board by welding hole with pins type LED pin in the planar lighting device of prior art printing opacity that to be that the pins type LED pin contacts with wiring board point different, welding hole is not set on the wiring board that can conduct heat in the planar lighting device of the utility model printing opacity, the pins type LED pin is directly to be welded on the plate face of wiring board, in other words, pins type LED pin in the utility model is that line contacts with wiring board, this makes the pins type LED pin in the utility model and the contact area that is used to conduct heat of wiring board increase greatly, thereby has improved radiating effect of the present utility model greatly;

3, improve greatly owing to heat dispersion of the present utility model, therefore, the utility model just can adopt some high-power pins type LEDs, thereby not only makes the brightness of the planar lighting device of the utility model printing opacity become higher, and whole visual effect also becomes pleasant, pleasing.

As a kind of improvement of the present utility model, described luminous plaque can be adopted as the nanometer LGP.What the nanometer LGP adopted is a kind of nanometer technology, and therefore, the use of nanometer LGP can further strengthen whole visual effect of the present utility model.

As a kind of improvement of the present utility model, the reverse side of described nanometer LGP can be coated with one deck aluminium lamination or silver layer.Coat one deck aluminium lamination or silver layer at the reverse side of nanometer LGP and luminous plaque in the utility model is not produced at LED under the situation of light source be similar to mirror, thereby further strengthen whole visual effect of the present utility model and application.

As another kind of improvement the of the present utility model, all can establish some LED groove or LED holes that are used to place pins type LED on many limits of described framework.The pins type LED illuminator that can make in the utility model that is provided with in LED groove or LED hole is embedded in LED groove or the LED hole, thereby has further reduced integral thickness of the present utility model.

Said frame can be the framework of four edges, and the quantity of described wiring board can be four.

The reverse side of said frame can connect a bottom.

Description of drawings:

Accompanying drawing is the decomposition texture schematic diagram of the utility model lamp box.

Shown in the figure: 1, framework, 2, luminous plaque, 3, bottom, 4, wiring board, 5, pins type LED, 6, the LED groove.

Specific embodiment:

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

As shown in drawings, in this specific embodiment, the utility model lamp box comprises framework 1, luminous plaque 2, light-emitting device and bottom 3; Described luminous plaque 2 is meant the nanometer LGP, and the reverse side of described nanometer LGP scribbles one deck aluminium lamination; The reverse side of described nanometer LGP is fixedly connected on the front of framework 1; Described bottom 3 is fixedly connected on the reverse side of framework 1; Described light-emitting device comprises four wiring boards 4 and some pins type LEDs 5; Described pins type LED 5 is between nanometer LGP and framework 1, and is and parallel with the limit and the bottom 3 of luminous plaque 2, framework 1; The pin of described pins type LED 5 directly is welded on the plate face of the wiring board 4 that welding hole is not set; Two pins of described pins type LED 5 are all parallel with wiring board 1 with illuminator; Described four wiring boards 4 level respectively are connected on many limits of framework 1; Be equipped with some LED grooves 6 that are used to place pins type LED 5 on the four edges of described framework 1; The quantity of described LED groove 6 equates with the quantity of pins type LED 5.Luminous plaque 2 described in the utility model is not that the of fingerboard own can be luminous, and it is luminous owing to the light source of pins type LED 5 generations.

It is described that the utility model is not limited to the foregoing description, and it also allows following variation: the quantity of the wiring board 4 in the utility model is not limited to four, and it also can be three or five; In addition, the reverse side that luminous plaque 2 is not limited at the nanometer LGP is coated with upper aluminum layer, and it can also coat silver layer at the reverse side of acryl transparent panel, also can directly use the nanometer LGP under the situation that is not coated with aluminium lamination or silver layer; And luminous plaque 2 also is not limited to and adopts the nanometer LGP, and it can also adopt plastic plate, glass plates etc. such as the acrylic plate that is mixed with nanometer astigmatism particle uniformly, PVC; Also have, when the utility model adopts glass plate, can not connect bottom 3 at the reverse side of framework 1, the two sides of glass plate can add other material in response to the difference of usefulness simultaneously, such as high-abrasive material, photodiffusion material, antireflection material or the like; And the pins type LED described in the utility model can adopt the colored pins type LED with RGB three primary colors light source the same with prior art, more than changes all falling into protection domain of the present utility model.

Claims

1, a kind of planar lighting device of printing opacity comprises framework (1), luminous plaque (2) and light-emitting device; Described luminous plaque (2) is connected the front of framework (1); Described light-emitting device comprises polylith wiring board (4) and some pins type LEDs (5); Described pins type LED (5) is parallel with the limit of luminous plaque (2) and framework (1), it is characterized in that: the pin of described pins type LED (5) directly is welded on the plate face of the wiring board (4) that welding hole is not set; Two pins of described pins type LED (5) are all parallel with wiring board (1) with illuminator; Described polylith wiring board (4) level respectively is connected on many limits of framework (1).

2, the planar lighting device of printing opacity according to claim 1 is characterized in that: described luminous plaque (2) is meant the nanometer LGP.

3, the planar lighting device of printing opacity according to claim 1 is characterized in that: the reverse side of described nanometer LGP scribbles one deck aluminium lamination or silver layer.

4, the planar lighting device of printing opacity according to claim 1 is characterized in that: be equipped with some LED groove or LED hole (6) that are used to place pins type LED (5) on many limits of described framework (1).

5, according to the planar lighting device of claim 1 or 4 described printing opacities, it is characterized in that: described framework (1) has four edges, and the quantity of described wiring board (4) is four.

6, the planar lighting device of printing opacity according to claim 5 is characterized in that: the reverse side of described framework (1) is connected with a bottom (3).