CN201407508Y

CN201407508Y - LED lighting device

Info

Publication number: CN201407508Y
Application number: CN2009200539100U
Authority: CN
Inventors: 陈向荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-02
Filing date: 2009-04-02
Publication date: 2010-02-17
Anticipated expiration: 2019-04-02

Abstract

The utility model discloses an LED lighting device which comprises a base, a light source plate, a diffusion plate, a fixed frame and a driving power supply. The light source plate is arranged at thebottom part of the base, and at least two LED lamps are arranged on the light source plate; the diffusion plate which is arranged at the top part of the base is used for diffusing point light sourcesof the LED lamps on the light source plate, so as to form uniform as well as consistent surface light sources and export the surface light sources; the fixed frame which is provided with a fixed component is used for fixing the diffusion plate on the base; the driving power supply is used for converting an AC power supply into a constant-voltage power supply or a constant-current power supply, andproviding the converted constant-voltage power supply or the constant-current power supply for the LED lamps arranged on the light source plate. The LED lamps on the light source plate are arrayed ina quincunx manner, so as to lead the point light sources of light rays of the LED lamps to be mutually crossed and mixed through the diffusion plate to form the surface light sources with uniform andconsistent brightness, thereby achieving the effect of leading the lighting device to have the characteristics of soft light rays, no dazzling and uniform as well as consistent surface light sources.

Description

A kind of LED lighting device

Technical field

The utility model relates to lighting field, relates in particular to a kind of LED lighting device.

Background technology

Be widely used in the lighting unit of office's intraoral illumination or other commercial uses at present, usually adopt square or rectangle plasterboard or aluminium-plastic panel carry out furred ceiling, correspondingly, employing embeds with the light fixture of the square or rectangle structure of ceiling correspondingly-sized, to reach the effect that lighting and interior decoration are unified and beautify.The most frequently used product is the fluorescent lamp grid lamp disc, and its size generally is designed to be equivalent to 1/2nd ceiling sizes, ceiling size and 1/2nd wide but two sizes that ceiling is long.Existing LED on the market (LightEmitting Diode, light emitting diode) light fixture and light source mostly are point light source light-emitting greatly, are easy to generate dazzling dazzle, watch fatiguability even cause eyesight to descend for a long time.

Fig. 1 discloses a kind of lamp panel of led light source for Chinese utility model patent ZL200720193628.3, by analyzing the claim of this patent, specification and accompanying drawing are as can be known, its core emphasis is that each LED is set up independently reflection room, the effective sunlight of LED is all reflected, and the overall reflective grid that the lampshade of described lamp panel is made up of 16 or 25 reflection rooms forms, therefore, how this patent utilizes the effect of LED to obtain saves energy consumption to greatest extent if in fact just having disclosed, and the lighting effect that reaches similar traditional Grille lamp by the matrix form arrangement, though the purpose of design of reflection room is to reduce the LED dazzle to adopt each LED to set up independently, but the essence solution that reduces the LED dazzle is not provided, the implementation method of area source is not described yet.

Chinese invention patent 200680035689.5 discloses the manufacture method of a kind of lamp box and light reflecting board and light reflecting board, even its purpose of design provides a kind of under the situation of the strong light source of the light directive property of having used LED and so on, the manufacture method of uneven lamp box and light reflecting board thereof and light reflecting board also can not take place in surface illumination, by analyzing the claim of this patent, specification and accompanying drawing are as can be known, LED lamp on its distributing board is arranged by matrix form, this arrangement mode can the LED lamp wiring intersect less than the position form the shadow region, thereby can not make the LED lamp wiring intersect mixing equably, still can produce dazzle.

The utility model content

In view of above-mentioned existing in prior technology problem, the utility model embodiment provides a kind of LED lighting device, realizes converting the LED spot light to area source, reaches the soft free from glare of light, the area source effect of uniformity.

In order to address the above problem, the utility model embodiment provides a kind of LED lighting device, comprising:

One pedestal;

One light source board is arranged at described base bottom, and at least two LED lamps are set thereon;

One diffuser plate is arranged at the top of described pedestal, is used to spread the spot light of the LED lamp that is provided with on the described light source board, forms the area source of uniformity, and derives described area source;

One fixed frame, it is provided with fixed part, is used for described diffuser plate is fixed on described pedestal;

One driving power is used for converting AC power to constant voltage source or constant-current supply, and constant voltage source after the described conversion or constant-current supply are offered the LED lamp that is provided with on the described light source board.

Implement the utility model embodiment, has following beneficial effect: convert the LED spot light to area source, make the LED light shadow-free or the bright spot that derive on the diffuser plate, reach have energy-conservation, the soft free from glare of light, the area source effect of uniformity, the illumination brightness that improves the LED lighting device.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is a LED Grille lamp device of the prior art;

Fig. 2 is the exploded view of a kind of LED lighting device of the utility model;

Fig. 3 is the index path in the leaded light space of a kind of LED lighting device of the utility model;

Fig. 4 is led light source board plane figure commonly used in the prior art;

Fig. 4 A is a prior art led light source plate partial enlarged drawing commonly used;

Fig. 5 is the light source board plane of a kind of LED lighting device of the utility model;

Fig. 5 A is the light source board partial enlarged drawing of a kind of LED lighting device of the utility model;

Fig. 6 is the scheme of installation of first embodiment of a kind of LED lighting device of the utility model;

Fig. 7 is the scheme of installation of second embodiment of a kind of LED lighting device of the utility model.

The specific embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

Referring to Fig. 2 and Fig. 3, Fig. 2 is the exploded view of a kind of LED lighting device of the utility model, and Fig. 3 is the index path in the leaded light space of a kind of LED lighting device of the utility model.Fig. 2 and Fig. 3 disclose the LED lighting device of first embodiment of the present utility model, and this device is general to embed indoor ceiling or be lifted on square or rectangular lighting device on the indoor ceiling, and LED lighting device of the present utility model comprises:

One pedestal 1;

Concrete, described pedestal 1 can be with the body structure of thin plate machine-shaping, can embed or be lifted on predetermined spatial position, and this body structure is a bottom lock, and the structure that freely open at the top is provided with the jump ring bayonet socket in two pairs of sides of its body structure.

One light source board 2 is arranged at described pedestal 1 bottom, and a plurality of LED lamps are set thereon;

Concrete, described light source board 2 is arranged at the bottom at described pedestal 1, be arranged on one or more circuit board at interval in conjunction with even by a plurality of series connection of LED lamp or connection in series-parallel below 1 watt or 1 watt, in the middle of practical operation, the general multi-string LED lamp that adopts, this LED lamp is pin type LED lamp or surperficial subsides type LED lamp, preferably adopting surperficial subsides type power is the LED of 0.2W, because such LED power is little, therefore in the middle of actual mechanical process, can adopt the quantity of more LED.Again because the lighting angle of the LED lamp of this type (refers to that its brightness center is to the angle between the half intensity, left and right sides angle sum) general 120 degree that adopt in the industry, adopt plum blossom shape matrix arrangement mode that the light of LED lamp is evenly intersected mutually then, eliminate adjacent LED and arrange the shadow region that produces, see Fig. 3, shown in Fig. 5 and Fig. 5 A, centre circle is LED, the dotted line scope is the hot spot of LED light, LED21, LED22, LED23, LED24, LED25a is plum blossom shape matrix and arranges, and just can eliminate in this position because light intersects less than the shadow region that forms at plum blossom shape center arrangement LED25a like this.The LED lamp that prior art adopts is usually arranged shown in Fig. 4 and Fig. 4 A, centre circle is LED, the dotted line scope is the hot spot of LED light, the dash area that hatched example areas forms for LED light, general LED81, LED82, LED83, the LED84 matrix that is square is arranged, and it may form shade 85a in the LED85 zone.

One diffuser plate 4 is arranged at the top of described pedestal 1, is used to spread the spot light of the LED lamp that is provided with on the described light source board 2, forms the area source of uniformity, and derives described area source;

Concrete, described diffuser plate 4 is arranged on the top of described pedestal 1, described diffuser plate 4 adopts light transmissive material to make, this light transmissive material can be translucent lacteous plastics or the glass board material that adds the micro mist formation of ultra-fine barium sulfate or a save of pleasure white powder or similar material in transmitting substrate, also can be plastics or the glass board material that has the ridge design surface.Described diffuser plate 4 can be a slab construction, it also can be the spherical surface hill structure, its size generally is designed to be equivalent to 1/2nd ceiling sizes or ceiling size or 1/2nd wide but two sizes that ceiling is long also can design its size according to the actual requirements.The point light that LED lamp on the described light source board 2 sends can be diffuseed to form the area source of uniformity by light diffusing sheet 4, and derives area source, makes the LED light shadow-free or the bright spot of derivation, reaches the effect of the soft free from glare of light.

Simultaneously, described light source board 2 and described diffuser plate 4 form a leaded light space 7, described leaded light space 7 is the space according to suitable distance between the described light source board 2 of the density formation of quantity, luminous angle and the distribution of LED lamp on the described light source board 2 and the diffuser plate 4, preferably the scope of this suitable distance is 50 to 80 millimeters, can eliminate the shade or the bright spot of the LED lamp wiring that is provided with on the described light source board so effectively, the light of the LED lamp on the light source board 2 intersect mutually in the leaded light space again through diffuser plate 4 once more mixed light form the area source of brightness uniformity.

One fixed frame 5, it is provided with fixed part, is used for described diffuser plate 4 is fixed on described pedestal 1;

Concrete; described fixed frame 5 is fixed on described diffuser plate 4 on the described pedestal 1 by fixed part; fixed part described in the present embodiment is the jump ring elastomeric element; in concrete actual mechanical process, as long as described diffuser plate 4 can be fixed on arbitrary parts of expecting easily on the described pedestal 1 all within the scope of the utility model protection.Any two pairs of sides at described fixed frame 5 are provided with the jump ring elastomeric element, with described pedestal 1 corresponding jump ring bayonet socket are set and do elasticity and be connected, and entire lighting device are embedded into surperficial following time is installed still can open base body easily.The undersized of described fixed frame 5 in or be slightly larger than described pedestal 1 size, when the undersized of described fixed frame 5 in and when being placed in the described pedestal 1, its upper surface is equal with pedestal 1 upper surface, when the size of described fixed frame 5 is slightly larger than, part is placed in the pedestal 1, and its bottom surface is equal with the installation surface.

One driving power 6 is used for converting AC power to constant voltage source or constant-current supply, and constant voltage source after the described conversion or constant-current supply are offered the LED lamp that is provided with on the described light source board 2.

Concrete, described driving power 6 is with alternating current our usual said civil power conversion just and the power supply of the constant voltage work or the constant current work of the LED lamp on the light source board 2 is provided.

One lateral reflection plate 3 is arranged at around the described pedestal 1 inboardly, is used for the lateral light line reflection of the LED lamp that will be provided with on the described light source board 2 or is refracted to described diffuser plate 4;

Concrete, it is inboard all around that described lateral reflection plate 3 is arranged at described pedestal 1, and be between light source board 2 and described diffuser plate 4 edges corresponding inclination angle with LED lamp lateral light line reflection, be refracted in described diffuser plate 4 or the leaded light space 7, can reduce the loss of light like this, increase operation rate, reach energy-conservation effect.

Referring to Fig. 6, Fig. 6 is the scheme of installation of first embodiment of a kind of LED lighting device of the utility model, disclosed the installation effect of lighting device described in the utility model, its pedestal 1 is embedded in installed surface 71 interior (in suspended ceiling) but fixed frame 5 is being installed outside the surface, correspondingly, for keeping diffuser plate to take out easily and to dismantle, still adopt the elastic-like connected mode of fixed frame 5 and pedestal, fixed frame 5 is designed to bigger than box sizes, and its bottom surface is concordant with the installation surface.The benefit of this embodiment is, the diffuser plate area can suitably amplify, fixed frame 5 can not form the space, can select the material that is different from pedestal for use between pedestal, as long as carry out surface treatment or decoration and do not worry being consistent with the pedestal outer surface and for convenience detach at outer surface.

Referring to Fig. 7, Fig. 7 is the scheme of installation of second embodiment of a kind of LED lighting device of the utility model, disclosed another installation effect of lighting device described in the utility model, its integral body is embedded in the installed surface 71 (in suspended ceiling), correspondingly, for keeping diffuser plate to take out easily and to dismantle, fixed frame 5 is designed to littler than box sizes, and its outer surface is concordant with pedestal 1 outer surface.Need suitable assemblage gap owing to fixed frame 5 with pedestal 1, this embodiment need reduce as far as possible because the error that the deviation of machining accuracy causes reduces this gap to avoid this gap place light leak as far as possible.

In sum, implement the utility model the LED lamp on the light source board is the arrangement of plum blossom shape, make spot light mutual process diffuser plate area source of mixed light formation brightness uniformity once more that intersects again in the leaded light space of LED lamp wiring, again through lateral reflection plate with the lateral light line reflection of LED lamp and be refracted to diffuser plate or the leaded light space in, can reduce the loss of light like this, increase operation rate, make lighting device have the area source effect of energy-conservation, long-life, the soft free from glare of light, uniformity thereby reach.

Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.

Claims

1, a kind of LED lighting device is characterized in that, comprising:

One pedestal;

One light source board is arranged at described base bottom, and a plurality of LED lamps are set thereon;

2, device as claimed in claim 1 is characterized in that, described device also comprises:

One lateral reflection plate is arranged at around the described pedestal inboardly, is used for the lateral light line reflection of the LED lamp that will be provided with on the described light source board or is refracted to described diffuser plate.

3, device as claimed in claim 2 is characterized in that, is corresponding inclination angle between described lateral reflection plate and described light source board and the described diffuser plate edge.

4, device as claimed in claim 1 is characterized in that, described LED lamp is pin type LED lamp or surface attaching type LED lamp.

5, device as claimed in claim 4 is characterized in that, described LED lamp series connection or connection in series-parallel are arranged on the described light source board.

6, device as claimed in claim 5 is characterized in that, described LED lamp is plum blossom shape matrix and arranges.

7, device as claimed in claim 1, it is characterized in that, described diffuser plate adopts light transmissive material to make, and described light transmissive material is to add translucent lacteous plastics or the glass board material that micro mist forms in transmitting substrate, and described micro mist is ultra-fine barium sulfate or titanium dioxide or similar material.

8, device as claimed in claim 1 is characterized in that, described diffuser plate adopts light transmissive material to make, and described light transmissive material is plastics or the glass board material that has the ridge design surface.

As claim 7 or 8 described devices, it is characterized in that 9, described diffuser plate is slab construction or plane or spherical surface hill structure.

10, device as claimed in claim 1 is characterized in that, described fixed part is the jump ring that is provided with in any two pairs of sides of described fixed frame, and the position of corresponding this jump ring of described pedestal frame is provided with corresponding jump ring bayonet socket.