CN201547537U

CN201547537U - LED lighting device

Info

Publication number: CN201547537U
Application number: CN2009201524102U
Authority: CN
Inventors: 王吉祥; 王心范
Original assignee: OPTIC POWER CORP Ltd
Current assignee: OPTIC POWER CORP Ltd
Priority date: 2009-04-24
Filing date: 2009-04-24
Publication date: 2010-08-11
Anticipated expiration: 2019-04-24

Abstract

The utility model relates to an LED lighting device, comprising a transparent light guiding bar which is provided with a reflecting sheet at an arc reflecting surface on the top; a recessed accommodating slot is arranged on at least one side of the light guiding bar, facing to the arc reflecting sheet and a light penetrating portion is formed on the bottom of the light guiding bar; the LED lighting device also includes at least an LED module which is received in the accommodating slot and includes a long bar shaped circuit board the top surface of which is coupled with a plurality of LEDs; when LED is lighted, the light from the point-like light source is refracted by the light guiding bar and reflected by the reflecting sheet, therefore, the light from a face-like light source with uniform illuminance and soft light penetrates through the light penetrating portion for supply illumination.

Description

Light emitting diode illuminating apparatus

Technical field

The utility model is a kind of lighting device, refers to a kind of lighting device of tool light source equalization effect especially.

Background technology

LED (light emitting diode) has advantages such as environmental protection and volume are little, and research and development constantly and improvement in recent years, makes the illumination of LED significantly improve, and is acted on the purposes of illumination, be with, LED no longer is confined to existing indication or alarm function.Therefore, existing LED can replace light sources such as existing bulb or fluorescent tube, can be rated as a quantum jump of light fixture industry.

When high-capacity LED is lighted, no doubt can satisfy the requirement of illumination, but its significant disadvantage is, the light that LED distributed is approximate point source of light, this measure makes when a plurality of LED are used to throw light on that the field of illumination can produce the staggered multiple shadow phenomenon of light and shade, will increase the weight of the burden of eye.

Based on aforesaid shortcoming, relevant dealer develops a kind of LED lighting device, its with light source projects that led module produced to one metallic reflector of top, in the reflection mode light source-guide is come out again, point source of light when this measure is no doubt can be with a plurality of LED luminous forms the flat light source of lighting use via air refraction and reflector reflection back.Owing to air is only arranged as refractive medium between this LED and metallic reflector, and air refraction is 1, therefore, aforesaid LED lighting device with metallic reflector, and can't increase the refraction efficient of light source effectively.

In addition, existing lighting device mostly with fluorescent tube for it, aforesaid LED lighting device can't be compatible with daylight lamp holder because of overall structure, so that after original daylight lamp holder must being removed, row is installed this LED lighting device again, the pedestal of lighting device is installed and the binding of circuit because this installation process comprises, so that can't change the easy of fluorescent tube as DIY voluntarily.Therefore, if the LED lighting device can be designed to be compatible with fluorescent tube, it being had and the quick function that combines of daylight lamp holder, will be the difficult problem that relevant dealer demands urgently breaking through.

The utility model content

The utility model main purpose is to provide a kind of LED lighting device, it can see through the point source of light that LED launched the refraction of one lamp guide effectively, via a reflector plate light source reflection is guided then, in order to form a kind of flat light source with light source equalization.

For reaching aforesaid purpose, the technological means that the utility model is taked provides a kind of LED lighting device, and it comprises:

One transparent light guide rod, the curved reflecting surface at its top is provided with a reflector plate, and at least one side of this lamp guide is offered a recessed storage tank towards this arc reflector plate, and a transmittance section is then formed on the bottom; And

At least one led module, it is installed in the storage tank, and this led module comprises a strip circuit board, and its end face couples a plurality of LED;

After LED lighted, its point source of light was via the refraction of lamp guide, and the reflection of reflector plate, make after the reflection illumination evenly and the soft flat light source of light penetrate this transmittance section, so that illumination to be provided.

The utility model secondary objective is to provide a kind of LED lighting device, and its configuration design becomes the fluorescent tube pattern, can directly be installed on existing daylight lamp holder.

One transparent light guide rod, the curved reflecting surface at its top is provided with a reflector plate, and at least one side of this lamp guide is offered a recessed storage tank towards this arc reflector plate, and a transmittance section is then formed on the bottom;

One connected structure, it is socketed on this lamp guide one side separately with two sleeve pipes, wherein be provided with a power-supply adapter in the sleeve pipe, the tool circuit is connected between this power-supply adapter and circuit board, in addition two end caps are sheathed on a sleeve pipe outer end respectively, outside projection two fixed pins of an end cap wherein, the end cap that is adjacent to this power-supply adapter are outside projection two power pins then, have being connected of circuit between this two power pin and power-supply adapter;

After two power pins are connected power supply, LED is lighted, its point source of light is via the refraction of lamp guide, and the reflection of reflector plate, make after the reflection illumination evenly and the soft flat light source of light penetrate this transmittance section, so that illumination to be provided.

The utility model beneficial effect: via enforcement of the present utility model, the effect that it gained is, design via this lamp guide, except that the assembling location of capable for LED module, and by this lamp guide refractive index higher than air, and the setting of top arc reflector plate, make the point source of light of LED, after refraction and reflection, thereby form illumination evenly and the soft flat light source of light, and unlikelyly cause visual sense of discomfort.Especially, the utility model can make the utility model profile as existing fluorescent tube further combined with pin-joint mechanism, and it is intercalation location and daylight lamp holder directly, and then replaces fluorescent tube, can be rated as a similar big good structure not seen before.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model LED lighting device,

Fig. 2 is the profile after LED lighting group shown in Figure 1 is stood,

Fig. 3 a to Fig. 3 t is the schematic diagram of the various section variation of the utility model lamp guide,

Fig. 4 is the three-dimensional exploded view of another embodiment of the utility model LED lighting device,

Fig. 5 is the stereogram after LED lighting device group shown in Figure 4 is stood.

The specific embodiment

Be further to disclose concrete technology contents of the present utility model, at first see also graphicly that wherein, to shown in Figure 2, basically, LED lighting device of the present utility model is by a lamp guide 1, and at least one led module 2 combines as Fig. 1.

Wherein, lamp guide 1 is a transparent cylinder, and it is preferably by the optical grade macromolecular material and to mix the strong material of specific ratios made, and for example the acryl material mixes other strong material institute extrusion molding.For making this lamp guide 1 have function of reflecting, be with, this lamp guide 1 top curved reflecting surface 11 is provided with a reflector plate 12, this reflector plate 12 is incorporated into this curved reflecting surface 11 surfaces with one-body molded, printing, applying or adhesive means.And be to form ray refraction, so this lamp guide 1 at least one side be preferably the bilateral symmetry mode and offer a pair of recessed storage tank 13 towards this arc reflector plate 12, its use for after chat the ccontaining of led module 2 and locate.These storage tank 13 belows form a transmittance section 14, make via refraction and the light that reflects to pass through this transmittance section 14, and provide illumination the even and soft illumination of light.

Led module 2 couples a plurality of light emitting diodes (LED) 22 on a strip circuit board 21 surfaces, and led module 2 is embedded in this storage tank 13, makes LED 22 towards reflector plate 12.

See also Fig. 2, it is installed in led module 2 in the schematic diagram in the storage tank of offering relatively lamp guide 1 both sides 13, the optical principle that the utility model LED lighting device is adopted is, after a plurality of LED 22 of each led module 2 are lighted, its light source is via the refraction of lamp guide 1, and, make flat light source penetrate the transmittance section 14 of lamp guide 1 bottom downwards, thereby the effect of illumination is provided via the reflection of top reflector plate 12.Therefore, by the enforcement of present embodiment, the point source of light that each LED 22 is presented when luminous is via the refraction of lamp guide 1, and after the reflection of reflector plate 12, can form illumination evenly and the soft flat light source of light.If the utility model lamp guide 1 moulding material is selected poly-methylpropanoic acid methyl esters (PMMA) for use, its refractive index is 1.49, much larger than the refractive index of air, thereby increases refraction effect.

Shown in Fig. 3 a and Fig. 3 t, disclose the application examples of the various enforcements of this lamp guide 1 separately, shown in Fig. 3 a to Fig. 3 c, it shows that storage tank 13 changes with respect to the corner cut of lamp guide 1, and wherein, this storage tank 13 is 30 to 60 degree that are preferably of 0 to 85 degree with respect to the range of tilt angles of the horizontal datum of lamp guide 1, the best is 50 degree, this measure, will help light that LED 22 throwed via refraction after, can successfully reflect by reflector plate 12.

Shown in Fig. 3 d to Fig. 3 f, its projection surface 131 that shows storage tank 13 tops has the flat face except that Fig. 3 a to Fig. 3 c, still can have the recessed appearance of knuckle, arc-shaped protrusions and arc and change.Shown in Fig. 3 g to Fig. 3 j, it shows the profile variation of each lamp guide 1, and is for example circular, oval, and the radian of lamp guide 1 end face changes.Shown in Fig. 3 k to Fig. 3 t, its various appearance that show this transmittance section, lamp guide 1 bottom 14 change, for example arc (Fig. 3 k), continuously tangent plane (Fig. 3 l), polygon (Fig. 3 m and Fig. 3 n), irregular shape (Fig. 3 o), continuously concave surface (Fig. 3 p), continuously convex surface (Fig. 3 q and Fig. 3 r), have the indent tangent plane (Fig. 3 s) of angle, and reflector plate 12 and transmittance section 14 are variation such as continuous convex surface (Fig. 3 t) appearance of etc.ing.

As Fig. 4 and shown in Figure 5, the correlative type of another embodiment of the utility model LED lighting device, wherein, the lamp guide 1 of present embodiment is identical with preceding embodiment with led module 2, does not intend giving unnecessary details at this.The technical characterictic of present embodiment is that these lamp guide 1 both sides are respectively in conjunction with a connected structure 3, and it covers 31, two sleeve pipes, 32, one power-supply adapters 33 by two location, and two end caps 34 are formed.These location lid 31 inner radial are provided with a dividing plate 311, the contact during for lamp guide 1 socket, and two leads 23 of these dividing plate 311 corresponding each circuit boards 21 are offered perforation 312 respectively, pass through for it.The location is covered the 31 axial outsides and is then supplied the flange 321 of sleeve pipe 32 sheathed, utilize a screw 314 to be bolted in the screw 313 that establish on this lid 31 radial outer wall top, location then, make its bottom prop up this flange 321, and make this location lid 31 be combined as a whole, and be fixedly arranged on this lamp guide 1 both sides with sleeve pipe 32.Wherein, be provided with a power-supply adapter 33 in the sleeve pipe 32, this power-supply adapter 33 couples mutually with two leads 23 of this circuit board 21, to form the connection of circuit.

And end cap 34 is sheathed on sleeve pipe 32 outer ends, an end cap 34 outside projection two fixed pins 341 wherein, be adjacent to then outside projection two power pins 342 of end cap 34 of this power-supply adapter 33, this two power pin 342 has being connected of circuit with 33 of power-supply adapters.

As shown in Figure 5, it shows the stereogram after the second embodiment group of the utility model LED lighting device is stood, its profile is as good as with general fluorescent tube, therefore, LED lighting device of the present utility model can directly be intercalated in existing daylight lamp holder, and by this to power pin 342 power takings after, conversion by this power-supply adapter 33, and provide the circuit board 21 of dc source to led module 2, each LED 22 is lighted, and make point source of light see through the refraction of leaded light post 1 and the reflection of reflector plate 12, make after the reflection illumination evenly and the soft flat light source of light penetrate this transmittance section 14, so that illumination to be provided.

That the utility model disclosed is a kind of of preferred embodiment, such as Ju Bu change or modification and come from technological thought of the present utility model and be have the knack of this skill the people was easy to know by inference, all do not take off patent right category of the present utility model.

Claims

1. a light emitting diode illuminating apparatus is characterized in that, comprising:

At least one led module, it is installed in the storage tank, and this led module comprises a strip circuit board, and its end face couples a plurality of LED.

2. light emitting diode illuminating apparatus as claimed in claim 1 is characterized in that, this storage tank is 0 to 85 degree with respect to the range of tilt angles of the horizontal datum of lamp guide.

3. light emitting diode illuminating apparatus as claimed in claim 1 is characterized in that, this reflector plate is the curved reflecting surface surface that is incorporated into this lamp guide top with one-body molded, printing, applying or adhesive means.

4. light emitting diode illuminating apparatus as claimed in claim 1 is characterized in that, the projection surface of this storage tank top has the recessed appearance of flat face, knuckle, arc-shaped protrusions or arc.

5. light emitting diode illuminating apparatus as claimed in claim 1, it is characterized in that, the reflector plate at this lamp guide top is arc or continuous convex surface, and the transmittance section, bottom then is selected from arc, continuous tangent plane, polygon, irregular shape, continuous concave surface, continuous convex surface or has the appearance variation of the indent tangent plane of angle.

6. a light emitting diode illuminating apparatus is characterized in that, comprising:

One connected structure, it is socketed on this lamp guide one side separately with two sleeve pipes, wherein be provided with a power-supply adapter in the sleeve pipe, the tool circuit is connected between this power-supply adapter and circuit board, in addition two end caps are sheathed on a sleeve pipe outer end respectively, outside projection two fixed pins of an end cap wherein, the end cap that is adjacent to this power-supply adapter are outside projection two power pins then, have being connected of circuit between this two power pin and power-supply adapter.

7. light emitting diode illuminating apparatus as claimed in claim 6, it is characterized in that, this connected structure further comprises two location lids, each location lid is sheathed between lamp guide and the sleeve pipe, its inner radial is provided with a dividing plate, for being adjacent to lamp guide, this dividing plate is offered perforation and is supplied two leads of each circuit board to pass through, and each lid outside, location is the flange of each sleeve pipe inboard of socket then.

8. light emitting diode illuminating apparatus as claimed in claim 7 is characterized in that, a screw is established on this cover outer wall top, location, in addition a screw is bolted in screw, makes its bottom prop up the flange of this sleeve pipe.

9. LED lighting device as claimed in claim 6 is characterized in that, this storage tank is 0 to 85 degree with respect to the range of tilt angles of the horizontal datum of lamp guide.

10. light emitting diode illuminating apparatus as claimed in claim 6 is characterized in that, this reflector plate is the curved reflecting surface surface that is incorporated into this lamp guide top with one-body molded, printing, applying or adhesive means.

11. light emitting diode illuminating apparatus as claimed in claim 6 is characterized in that, the projection surface of this storage tank top has the recessed appearance of flat face, knuckle, arc-shaped protrusions or arc.

12. light emitting diode illuminating apparatus as claimed in claim 6, it is characterized in that, the reflector plate at this lamp guide top is arc or continuous convex surface, and the transmittance section, bottom then is selected from arc, continuous tangent plane, polygon, irregular shape, continuous concave surface, continuous convex surface or has the appearance variation of the indent tangent plane of angle.