CN203836741U

CN203836741U - Led projection lamp

Info

Publication number: CN203836741U
Application number: CN201420122536.6U
Authority: CN
Inventors: 赵宇波; 焦丽华; 许靖; 郭雅群
Original assignee: Shenzhen Institute for Innovative Design Co Ltd
Current assignee: Shenzhen Institute for Innovative Design Co Ltd
Priority date: 2014-03-17
Filing date: 2014-03-17
Publication date: 2014-09-17
Anticipated expiration: 2024-03-17

Abstract

An LED projection lamp is characterized by comprising projection units. Each projection unit comprises a light source set, a lens set and a polarized light lamp cover, wherein the light source set comprises an LED chip and a substrate for installing the LED chip, the lens set and the polarized light lamp cover are installed on the substrate in sequence, and the incident face or the light-emitting face of the polarized light lamp cover is in a sawtooth shape. According to the LED projection lamp, the modularized projection units are integrated into one lamp, the number of the projection units can be set according to the actual demands, an outer shell and a circuit do not need to be designed again, and the development cost is reduced. Only the damaged projection unit needs to be replaced when damaged, the other projection units can still be used, and the replacing cost is reduced.

Description

LED projecting lamp

Technical field

The utility model relates to LED technology, particularly relates to a kind of LED projecting lamp.

Background technology

LED(Light-Emitting Diode, light emitting diode) be a kind of solid-state semiconductor devices that electric energy conversion can be become to visible ray, have that voltage is low, power consumption is little, luminous efficiency advantages of higher, nowadays in the outer illumination of Indoor environment, urban beautification, Landscape Lighting etc., application is also more and more extensive.

LED projecting lamp is a kind of lighting source that is applied to the isometric distance of track, narrow width.General LED projecting lamp has constant power and fixed profile, and the place that is only adapted at appointment is used.If change application place, need to redesign mould or redesign circuit, increased development cost.

Utility model content

Based on this, provide a kind of LED projecting lamp that can freely assemble according to the actual requirements.

A LED projecting lamp, is characterized in that, comprises projecting unit; Described projecting unit comprises light source group, set of lenses and polarisation lampshade; The substrate that described light source group comprises LED chip and described LED chip is installed, described set of lenses, described polarisation lampshade are arranged on described substrate successively; Described polarisation lampshade enter light face or exiting surface is zigzag.

In an embodiment, light source group comprises at least two LED chips therein, and described LED chip array arrangement is on described substrate.

In an embodiment, LED chip power is 5 watts therein, and quantity is 18.

Therein in an embodiment, set of lenses comprises base and is arranged on the sub-lens on described base, and described base is offered through hole, and described sub-lens, described through hole and described LED chip are corresponding to be arranged.

In an embodiment, sub-lens is circular platform type therein, described sub-lens exiting surface lateral sunken inside, middle outwardly convex.

In an embodiment, sub-lens enters light face indent and forms the groove that can accommodate described LED chip therein.

In an embodiment, polarisation lampshade comprises polarisation unit therein, described polarisation unit and the corresponding setting in described sub-lens position; Described polarisation unit is provided with broached-tooth design, and the described broached-tooth design degree of depth is successively decreased successively.

In an embodiment, also comprise therein: be arranged on the radiating subassembly of described substrate back, described radiating subassembly comprises the fin being set up in parallel, described fin is fin shape.

In an embodiment, also comprise bracket therein, described bracket takes the shape of the letter U, and described radiating subassembly is installed in rotation on described bracket.

In an embodiment, locating hole and stopper slot are offered in radiating subassembly outside therein; Described bracket is provided with the first connector and the second connector, and described the first connector and described the second connector are arranged on respectively in described locating hole and described stopper slot.

Above-mentioned LED projecting lamp, is integrated into a whole lamp by a plurality of modularization projecting unit, and projecting unit quantity can be set according to the actual requirements, need not redesign shell and circuit, has reduced development cost.And only need with the projecting unit of changing damage while damaging, other projecting unit still can continue use, have reduced replacement cost.

Accompanying drawing explanation

Fig. 1 is the exploded view of projecting unit;

Fig. 2 is the exploded view of another angle of projecting unit in Fig. 1;

Fig. 3 is LED chip, sub-lens and the polarisation unit corresponding relation schematic diagram in a kind of embodiment;

Fig. 4 is the projecting unit stereogram that radiating subassembly is installed;

Fig. 5 is the LED projecting lamp stereogram of integrating three projecting unit and bracket being installed;

Fig. 6 is LED projecting lamp distribution curve flux figure of the present utility model.

The specific embodiment

Described in the utility model, describe laterally, longitudinally, inner side, outside, and upper and lower be according to the putting position of LED projecting lamp in this accompanying drawing, therefore do not limit scope of the present utility model.

Refer to Fig. 1～2.The LED projecting lamp the utility model proposes comprises modular projecting unit 100, and this projecting unit 100 comprises light source group 110, set of lenses 120 and polarisation lampshade 130.

Particularly, light source group 110, as the light emitting source of LED projecting lamp, produces throw light.Light source group 110 comprises LED chip 111 and substrate 112, and wherein LED chip is arranged on substrate 112, and LED chip can be one or a plurality of.Substrate 112 can adopt aluminium material, also can adopt pcb board.

Set of lenses 120, is arranged on substrate 112, and is positioned on light source group 110 exiting surfaces.The throw light that set of lenses 120 penetrates for converging light source group 110.The center reference optical axis alignment light source group 110 of set of lenses 120 wherein.The manufactured materials of set of lenses 120 can be PMMA(acrylic resin, is commonly called as lucite), silica gel, PC(Poly carbonate, Merlon) etc. transparent material.

Polarisation lampshade 130, is arranged on substrate 112 equally, is positioned under the exiting surface of set of lenses 120, for breaing up the throw light through set of lenses 120 simultaneously.Wherein polarisation lampshade 130 is made by the transparent base of uneven thickness, enters light face or exiting surface and is arranged to zigzag, and the medial surface of polarisation lampshade 130 and lateral surface are wherein simultaneously with broached-tooth design.

Set of lenses 120, polarisation lampshade 130 are arranged on substrate 112 successively, and polarisation lampshade 130 forms closed cavity with the substrate 112 of light source group 110, accommodates set of lenses 120.

The throw light of LED projecting lamp is penetrated by light source group 110, after being converged, then breaks up ejaculation by polarisation lampshade 130 by set of lenses 120, increases illumination range.

The LED projecting lamp the utility model proposes, can adopt single projecting unit 100, also can combine a plurality of modular projecting unit 100 and form a whole lamp.The quantity of projecting unit 100 arranges according to the actual requirements, only needs according to different scene increases in demand or reduces the quantity of projecting unit 100 and die sinking or design circuit again.In addition when breaking down, only need to change single projecting unit 100, avoided the waste of great amount of cost.

In one embodiment, light source group 110 comprises a plurality of LED chips 111.LED chip 111 array arrangements are on substrate 112.

Particularly, the luminescence unit of light source group 110 is LED chip 111, and LED chip 111 is evenly arranged on the medial surface of substrate 112 according to array.The power of LED chip 111 and quantity can be according to actual demand settings.

LED chip 111 array arrangements, contribute to uniformity of light, simultaneously owing to having combined a plurality of LED chips 111, guarantee illumination brightness.

Further, in single projecting unit 100, it is 18 that light source group 110 adopts the quantity of LED chip 111, by 9, is set to row, minute two row arrangements.In this embodiment, each LED chip 111 rated power is 5W(watt), during real work, power is 3W, and single projecting unit 100 overall power are 50W left and right, and power is compared conventional lamp and is significantly reduced.

In one embodiment, set of lenses 120 comprises base 121 and sub-lens 122.Wherein sub-lens 122 is arranged on base 121.On base 121, have through hole 1211, the position corresponding light source group 110 of through hole 1211 arranges.When light source group 110 comprises a plurality of LED chip 111, through hole 1211 quantity equate with LED chip 111 quantity, and each through hole 1211 correspondence is opened in the exiting surface dead ahead of each LED chip 111.Correspondingly, sub-lens 122 quantity equate with through hole 1211 quantity.Throw light is by after through hole 1211, then process sub-lens 122 converges.

On base 121, offer through hole 1211, after installing, the LED chip 111 of light source group 110 puts in through hole 1211, while guaranteeing that LED chip 111 is luminous and sub-lens 122 without interference.

Further, sub-lens 122 is truncated conical shape, and bottom surface is exiting surface, and indent outside exiting surface, middle evagination.

Referring to Fig. 3.Particularly, sub-lens 122 sides can be to face directly, can be also cambered surfaces.During projecting lamp work, the LED chip 111 of sub-lens 122 correspondences is equivalent to spot light, be diversity luminous, when the part light that LED chip 111 sends is penetrated by sub-lens 122 sides, because side is obliquely installed according to set angle in advance, can there is total reflection phenomenon through side in light, change by sub-lens 122 below exiting surfaces and penetrate.Corresponding this part light of female parts outside exiting surface, low-angle focused ray.Another part light that LED chip 111 sends directly penetrates sub-lens 122 downwards, and this part light is divided and carried out low-angle focusing by the male part in the middle of sub-lens 122 exiting surfaces.

In the present embodiment, sub-lens 122 enters on light face can also be provided with groove 1221.Groove 1221 can hold LED chip 111, and the LED chip 111 after assembling can stretch in groove 1221, and groove 211 tops are adjacent to substrate 112.

Groove 12211 is set, makes the sub-lens 122 after assembling tightr with 111 combinations of light emitting source LED chip, contribute to reduce the integral thickness of LED projecting lamp.

Referring to Fig. 2～4.Polarisation lampshade 130 is rectangular build, the whole cell body that forms an indent.Polarisation lampshade 130 peripheries are provided with installing hole, by screw and substrate 112, form seal chamber.Polarisation lampshade 130 medial surfaces are for entering light face, and lateral surface is exiting surface, and entering light face or exiting surface is zigzag.

In one embodiment, polarisation lampshade 130 includes a plurality of polarisations unit 131.

Particularly, the quantity of polarisation unit 131 is identical with sub-lens 122 quantity, and position alignment setting.Polarisation unit 131 has unsymmetric structure, is provided with broached-tooth design above, and it is one half side upper that broached-tooth design concentrates on, broached-tooth design upper flat wherein, and the degree of depth is successively decreased successively, in addition, the thickness of broached-tooth design, the irregular setting in the interval between broached-tooth design.Another is half side is the inclined-plane being connected with broached-tooth design, and this inclined-plane is mild gradually to polarisation unit 131 edge directions.

In this embodiment, the light face that enters of polarisation lampshade 130 is zigzag, and exiting surface polishing becomes burnishing surface.Polarisation unit 131 is arranged in light face, repeated combination, and the broached-tooth design on polarisation unit 131 is arranged the zigzag of formation polarisation lampshade 130 and is entered light face.Be appreciated that it can is also that the exiting surface of polarisation lampshade 130 is zigzag, enter light face smooth, the broached-tooth design relative set of polarisation unit 131 is on exiting surface.

Single polarisation unit 131 can be offset radiation direction along single direction, and because polarisation unit 131 parts are smooth, mild, make lens thickness equate the projecting direction of light not to be changed, guaranteed that certain part light can be irradiated at a distance, has advantages of that range of exposures is wide.

Refer to Fig. 4～5.In one embodiment, LED projecting lamp also comprises radiating subassembly 200.

Particularly, radiating subassembly 200 comprises a plurality of strip fin, and fin is arranged side by side, leaves each other interval, and integral body is fin shape and arranges.Radiating subassembly 200 adopts preferably metal material of heat conductive performance, is vertically adjacent on substrate 112 back sides.

Be appreciated that radiating subassembly 200 can be also one-body molded with substrate 112.

The heat dissipation ventilation that radiating subassembly 200 can be beneficial to LED projecting lamp is set, guarantees the normal use of LED projecting lamp, contribute to increase the service life simultaneously.

In this embodiment, LED projecting lamp is provided with bracket 300.

Particularly, bracket 300 is U-shaped, and two ends are arranged on respectively radiating subassembly 200 outsides.Bracket 300 integral retaining are lived LED projecting lamp, and LED projecting lamp can be realized around bracket 300 ends rotations the adjusting of LED projecting lamp irradiating angle.

Further, on radiating subassembly 200, two outsides are equipped with locating hole 201 and stopper slot 202.Locating hole 201 and the homocentric setting of stopper slot 202 particularly, stopper slot 202 place radius of a circles are larger than locating hole 201, and stopper slot 202 is distributed in the periphery of locating hole 201.Matchingly, bracket 300 trailing arms are provided with the first connector and the second connector (not shown), and correspondence is arranged in locating hole 201 and stopper slot 202 respectively.After installation, the first connector packs in locating hole 201 to be realized and being rotatably connected, and the second connector packs in stopper slot 202 and can in groove, move, after projecting unit 100 fixed angles, by the second connector fixed position in stopper slot 202.Wherein the first connector or the second connector can be screw and the screws matching with locating hole 201 or stopper slot 202, can be also and the integrated projection of bracket 300.

The syndeton of above-mentioned bracket 300, locating hole 201 and stopper slot 202, simple in structure, dependable performance, and processing ease.When LED projecting lamp comprises a plurality of projecting unit 100, the projecting unit 100 of adjacent also realizes the adjusting of angle each other by bolt on the basis of locating hole 201 and stopper slot 202.

Refer to Fig. 6, Fig. 6 is the LED projecting lamp brightness simulation result of having integrated four projecting unit 100.Now LED projecting lamp power is roughly 200W, and in range of exposures, the light of 250 meters reaches 2lx(lux) more than and middle without obvious dark space, lighting effect is outstanding.

The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims

1. a LED projecting lamp, is characterized in that, comprises projecting unit;

Described projecting unit comprises light source group, set of lenses and polarisation lampshade; The substrate that described light source group comprises LED chip and described LED chip is installed, described set of lenses, described polarisation lampshade are arranged on described substrate successively; Described polarisation lampshade enter light face or exiting surface is zigzag.

2. LED projecting lamp according to claim 1, is characterized in that, described light source group comprises at least two LED chips, and described LED chip array arrangement is on described substrate.

3. LED projecting lamp according to claim 2, is characterized in that, described LED chip power is 5 watts, and quantity is 18.

4. LED projecting lamp according to claim 1, is characterized in that, described set of lenses comprises base and be arranged on the sub-lens on described base, and described base is offered through hole, and described sub-lens, described through hole and described LED chip are corresponding to be arranged.

5. LED projecting lamp according to claim 4, is characterized in that, described sub-lens is circular platform type, described sub-lens exiting surface lateral sunken inside, middle outwardly convex.

6. LED projecting lamp according to claim 5, is characterized in that, described sub-lens enters light face indent and forms the groove that can accommodate described LED chip.

7. LED projecting lamp according to claim 4, is characterized in that, described polarisation lampshade comprises polarisation unit, described polarisation unit and the corresponding setting in described sub-lens position; Described polarisation unit is provided with broached-tooth design, and the described broached-tooth design degree of depth is successively decreased successively.

8. according to the LED projecting lamp described in any one of claim 1～7, it is characterized in that, also comprise: be arranged on the radiating subassembly of described substrate back, described radiating subassembly comprises the fin being set up in parallel, described fin is fin shape.

9. LED projecting lamp according to claim 8, is characterized in that, also comprises bracket, and described bracket takes the shape of the letter U, and described radiating subassembly is installed in rotation on described bracket.

10. LED projecting lamp according to claim 9, is characterized in that, locating hole and stopper slot are offered in described radiating subassembly outside; Described bracket is provided with the first connector and the second connector, and described the first connector and described the second connector are arranged on respectively in described locating hole and described stopper slot.