CN105757468A - Large-power LED (Light Emitting Diode) lamp with diversified light distribution structure - Google Patents

Abstract

The invention relates to a large-power LED (Light Emitting Diode) lamp with a diversified light distribution structure. The large-power LED lamp comprises a lens pressing ring, a lens, a reflector, a light source, a heat conduction plate, a heat radiator, a heat conduction pipe, a heat radiator sealing cover waterproof ring, a heat radiator sealing cover, a power supply fixing frame and a power supply, wherein the bottom surface of the light source is in contact with the top surface of the heat conduction pipe and the heat conduction pipe; the bottom surface of the lens and the top surface of the heat conduction pipe are located on the same plane and are concentric; the reflector is fixed on the top surface of the heat radiator; the focal point of the parabola of the reflector is located on the bottom surface of the reflector; a round hole or a square hole is formed in the bottom surface of the reflector; the plane of the light source and the focal point of the parabola of the reflector are located on the same standard surface; the center of the round hole or the square hole in the bottom surface of the reflector is the same as the circle center of the plane of the light source; and the bottom surface of the lens and the top surface of the reflector are located on the same standard surface and are concentric. The large-power LED lamp with the diversified light distribution structure has the beneficial effects of simple and small structure, beauty and practicability, enhancement of light utilization rate, capabilities of effectively reducing the clamp cost and reducing the shape size and the like.

Description

A kind of high-powered LED lamp with variation light distribution structure

Technical field

The present invention relates to a kind of high-powered LED lamp with variation light distribution structure, belong to field of light fittings.

Background technology

LED light source has the advantages such as energy-conservation, brightness is high, life-span length, is fallen over each other to praise highly by countries in the world, contribute to huge strength for energy-conserving and environment-protective, and still has great potential to be available for excavating.

But the characteristic due to the immature of prior art and LED light source so that LED light source need with radiator with the use of, cause light fixture high cost, overall heavy, hinder the universal of LED light source.In market, existing light-configuration mode uses the reflector of a large volume to be placed on radiator, and this infrastructure cost is high, and waterproof construction is complicated and there is risk, and reflector is subject to external force and is deformed.The built-in scheme of existing reflector, due to the restriction of LED light source size, is difficult to accomplish high-power.The existing built-in scheme of high-power reflector is due to the restriction of LED light source size and reflector size, and during arrow beam of light angle, the utilization rate of light is on the low side.

It is therefore desirable to design a kind of high-powered LED lamp with variation light distribution structure, to overcome the problems referred to above.

Summary of the invention

It is an object of the invention to overcome the defect of prior art, it is provided that a kind of high-powered LED lamp with variation light distribution structure, its simple in construction is small and exquisite, both artistic and practical, strengthens light utilization, effectively reduces light fixture cost and reduces overall dimensions.

The present invention is achieved in that

The present invention provides a kind of high-powered LED lamp with variation light distribution structure, including lens trim ring, lens, reflector, light source, heat-conducting plate, radiator, heat pipe, radiator capping water proof ring, radiator capping, power fixing frame and power supply；Heat-conducting plate contacts with radiator inner cylinder face for circular sheet material and external cylindrical surface, heat pipe contacts with the translot bottom surface in the middle of heat-conducting plate and contacts with the translot bottom surface on the radiator inner circle face of cylinder simultaneously, light source bottom surface contacts with heat-conducting plate end face and heat pipe, radiator capping water proof ring end face is in same plane and concentric with radiator bottom surface, radiator capping bottom surface is in same plane and concentric with radiator capping water proof ring bottom surface, power fixing frame bottom surface is in same plane and concentric with radiator capping end face, power supply bottom surface and power fixing frame end face are in same plane and concentric, described lens base and radiator end face are in same plane and concentric, lens trim ring bottom surface and radiator end face are in same plane and concentric；Wherein, described reflector is fixed on radiator end face, the parabolical focus of reflector is in reflector bottom surface, reflector bottom surface has circular hole or square hole, source plane and the parabolical focus of reflector are in same datum level, and the center of the circular hole of reflector bottom surface or square hole is identical with the source plane center of circle, lens base and reflector end face are in same datum level and concentric.

Further, the exit plane of described light source is circular or square.

Further, the circular hole of described reflector bottom surface or square hole 0.2mm bigger than the diameter of the exit plane of light source or the length of side.

Further, the bottom surface of described lens is circular, and it is tangent with land edges in lens to have circular inner hole.

Further, the reflecting surface of described reflector is parabola, and surface is made up of multiple monomer plane reflection unit.

Further, described lens are made up of glass, polymethyl methacrylate or Merlon.

Further, described reflector surface adds blasting treatment by vacuum plating, anodic oxidation or anodic oxidation.

Further, the described high-powered LED lamp with variation light distribution structure includes suspension ring, light fixture rotary fixed bracket, light fixture rotary fixed bracket adaptor.Described suspension ring screw thread external cylindrical surface contacts with power supply end face screw thread inner cylinder face, and the contacts side surfaces of light fixture rotary fixed bracket connector and radiator, light fixture rotary fixed bracket contacts with light fixture rotary fixed bracket adaptor end face.

Further, heat-conducting silicone grease is scribbled between described light source and heat-conducting plate.

The method have the advantages that

1. it is effectively improved light utilization, makes the rays pass through lens refraction that reflector cannot be refracted to achieve the goal；

2. can according to different fields of employment with the high-powered LED lamp of variation light distribution structure described in, it is provided that the different rising angle such as narrow middle width, and cost will not increase；

3. heavy light-configuration mode is modified to practical small and exquisite light distribution structure, effectively reduces production and transport cost；

4. can be applicable to the light fixture of reality described in the high-powered LED lamp of variation light distribution structure, weight is lighter to make this kind light fixture to accomplish, volume is less, and important contribution is made in the development for LED industry.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

The axonometric chart of a kind of high-powered LED lamp with variation light distribution structure that Fig. 1 provides for the embodiment of the present invention；

The exploded view of a kind of high-powered LED lamp with variation light distribution structure that Fig. 2 provides for the embodiment of the present invention；

The sectional view of a kind of high-powered LED lamp with variation light distribution structure that Fig. 3 provides for the embodiment of the present invention；

The axonometric chart of the lens that Fig. 4 provides for the embodiment of the present invention；

The sectional view of the lens that Fig. 5 provides for the embodiment of the present invention；

The axonometric chart of the reflector that Fig. 6 provides for the embodiment of the present invention；

The side view of the reflector that Fig. 7 provides for the embodiment of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of protection of the invention.

Such as Fig. 1 to Fig. 7, the embodiment of the present invention provides a kind of high-powered LED lamp with variation light distribution structure, and it includes lens trim ring 1, lens 2, lens water proof ring 3, reflector 4, light source 5, heat-conducting plate 6, radiator 7, heat pipe 8, radiator capping water proof ring 9, radiator capping 10, power fixing frame 11, power supply 12, suspension ring 13, light fixture rotary fixed bracket 14 and light fixture rotary fixed bracket adaptor 15.Wherein, described light source 5 can be LED light source, and the exit plane of described light source 5 is circular or square.

Heat-conducting plate 6 contacts with radiator 7 inner cylinder face for circular sheet material and external cylindrical surface, heat pipe 8 contacts with the translot bottom surface in the middle of heat-conducting plate 6 and contacts with the translot bottom surface on the radiator 7 inner circle face of cylinder simultaneously, light source 5 bottom surface contacts with heat-conducting plate 6 end face and heat pipe 8, radiator capping water proof ring 9 end face is in same plane and concentric with radiator 7 bottom surface, radiator covers 10 bottom surfaces and is in same plane and concentric with radiator capping water proof ring 9 bottom surface, power fixing frame 11 bottom surface and radiator cover 10 end faces and are in same plane and concentric, power supply 12 bottom surface and power fixing frame 11 end face are in same plane and concentric, described lens base and radiator 7 end face are in same plane and concentric, lens trim ring 1 bottom surface and radiator 7 end face are in same plane and concentric；The bottom surface of described lens 2 is circular, and it is tangent with land edges in lens 2 to have circular inner hole.

Wherein, described reflector 4 is fixed on radiator 7 end face, the parabolical focus of reflector 4 is in reflector 4 bottom surface, reflector 4 bottom surface has circular hole or square hole, light source 5 plane and the parabolical focus of reflector 4 are in same datum level, and the center of the circular hole of reflector 4 bottom surface or square hole is identical with the light source 5 plane center of circle, lens 2 bottom surface and reflector 4 end face are in same datum level and concentric.Wherein, described lens 2 are made up of glass, polymethyl methacrylate or Merlon.

Further, the circular hole of described reflector 4 bottom surface or square hole 0.2mm bigger than the diameter of the exit plane of light source 5 or the length of side.

Described lens 2 external cylindrical surface contacts with lens water proof ring 3 inner cylinder face and lens 2 bottom surface contacts with lens water proof ring 3 inner cylinder face bottom surface, lens water proof ring 3 bottom surface and radiator 7 end face are in same plane and concentric, lens trim ring 1 bottom surface and radiator 7 end face are in same plane and concentric, suspension ring 13 screw thread external cylindrical surface contacts with power supply 12 end face screw thread inner cylinder face, light fixture rotary fixed bracket connector 15 and radiator 7 contacts side surfaces, light fixture rotary fixed bracket 14 contacts with light fixture rotary fixed bracket adaptor 15 end face.

Owing to heat pipe 8 diameter dimension is more than heat-conducting plate 6 groove depth size, heat pipe 8 is placed in heat-conducting plate 6 notch, it is necessary to instrument heat pipe 8 is deformed to and maintains an equal level with heat-conducting plate 6 end face.

For increasing heat transfer efficiency, by after heat pipe 8 and the translot on the radiator 7 inner circle face of cylinder, it is necessary to instrument heat pipe 8 is deformed to and maintains an equal level with radiator 7 inner cylinder face.

For increasing heat transfer efficiency, between LED light source 5 and heat-conducting plate 6, scribble heat-conducting silicone grease.

Meet in the preferred embodiment of the present invention, by adjusting the radius of curvature of lens 2 positive camber and negative camber, the emergent ray of different beam angle can be obtained.

By changing the monomer plane reflection unit radius of curvature of reflector 4, the emergent ray of different beam angle can be obtained.

By changing the surface treatment of reflector 4, can obtaining the emergent ray of different beam angle, this surface treatment can be vacuum plating, and anodic oxidation, anodic oxidation adds the one in sandblasting.

In a preferred embodiment of the invention, described lens 2, reflector 4 are adapted to different types of light source, for instance point source and area source.

Further, the reflecting surface of reflector 4 is parabola, and surface is made up of monomer plane reflection unit, realizes different reflection angles by adjusting its focal point coordinate.Half light intensity angleWith the relational expression of monomer plane reflection unit it is:

By changing reflector 4 end face opening size A, reflector 4 degree of depth C, monomer plane reflection unit radius of curvature R, the dependent constant such as reflector 4 focal length ∫ can draw the beam angle of different angles；

The direction of the incident ray that lens 2 reflecting surface is passable moves to a specific direction or point based on bounce technique.Basic geometric optics relation is that the light that a reflecting surface moves is transmitted into specific direction θ ' p from light source, and wherein P is arbitrfary point from the teeth outwards and the direction of angle θ p means incident ray and x-axis.Assume that event and reflection angle are θ i and θ R, respectively；Can be expressed as at the tangent line rector θ T of an angle of the crossing at P place:

${\mathrm{\θ}}_T=\frac{\mathrm{\π}}{2}+({\mathrm{\θ}}_i-{\mathrm{\θ}}_P)---\left(1\right)$

It addition, from formula 1, we obtain lower relation of plane:

θ_i+θ_r=θ_P+θ′_P(2)

According to reflection law, incident angle θ i is necessarily equal to reflection angle θ r, therefore, and Wo Menyou:

${\mathrm{\θ}}_i={\mathrm{\θ}}_r=\frac{({\mathrm{\θ}}_P+{\mathrm{\θ}}_P^{\′})}{2}---\left(3\right)$

Formula (3) is substituted into formula (1), and we obtain:

${\mathrm{\θ}}_T=\frac{\mathrm{\π}}{2}+\frac{({\mathrm{\θ}}_P^{\′}-{\mathrm{\θ}}_P)}{2}.---\left(4\right)$

From formula (4), if θ Pand θ ' p is known, intersecting angle θ T just can solve, and tangent slope and vector can be given by a P:

$Slope=\tan \[\frac{\mathrm{\π}}{2}+\frac{({\mathrm{\θ}}_P^{\′}-{\mathrm{\θ}}_P)}{2}\]=-\cot \left(\frac{{\mathrm{\θ}}_P^{\′}-{\mathrm{\θ}}_P}{2}\right)---\left(5\right)$

With

$\stackrel{\‾}{T}=\[1,{\mathrm{tan\θ}}_T\]=\[1,-\cot \left(\frac{{\mathrm{\θ}}_P^{\′}-{\mathrm{\θ}}_P}{2}\right)\].---\left(6\right)$

In other cases, when incident ray is redirected to specified point F by reflecting surface, as shown in the figure.The tangent slope of P point is provided by equation (5), and angle, θ ' p is given by:

${\mathrm{\θ}}_P^{\′}={\tan }^{-1}\[\frac{\stackrel{\‾}{FQ}}{\stackrel{\‾}{PQ}}\]---\left(7\right)$

The direction of the incident ray that plane of refraction is passable moves to a specific direction or a point based on Snell's law. and refraction angle is represented by:

${\mathrm{\θ}}_t=\frac{\mathrm{\π}}{2}-({\mathrm{\θ}}_P^{\′}-{\mathrm{\θ}}_T)---\left(8\right)$

We can obtain following relationship:

${\mathrm{\θ}}_i=({\mathrm{\θ}}_P+{\mathrm{\θ}}_T)-\frac{\mathrm{\π}}{2}---\left(9\right)$

Because some P is refraction point, thus θ i and θ T must is fulfilled for Snell's law, it may be assumed that

n₁sinθ_i=n₂sinθ_t(10)

In formula (10), n1 and n2 is the refractive index of two media in Fig. 4.Substitute into formula.(8) and (9) substitute into formula (10), and rearrange the equation of gained, the angle of the tangent line rector t of the intersection point that we obtain is in a P conduct

${\mathrm{\θ}}_T={\tan }^{-1}\left(\frac{n_1{\mathrm{cos\θ}}_P+n_2{\mathrm{cos\θ}}_P^{\′}}{n_1{\mathrm{sin\θ}}_P-n_2{\mathrm{sin\θ}}_P^{\′}}\right),---\left(11\right)$

Tangent slope and vector can also be represented as at a P:

$Slope={\mathrm{tan\θ}}_T=\frac{n_1{\mathrm{cos\θ}}_P+n_2{\mathrm{cos\θ}}_P^{\′}}{n_1{\mathrm{sin\θ}}_P-n_2{\mathrm{sin\θ}}_P^{\′}}---\left(12\right)$

With

$\stackrel{\‾}{T}=\[1,{\mathrm{tan\θ}}_T\]=\[1,\frac{n_1{\mathrm{cos\θ}}_P+n_2{\mathrm{cos\θ}}_P^{\′}}{n_1{\mathrm{sin\θ}}_P-n_2{\mathrm{sin\θ}}_P^{\′}}\].---\left(13\right)$

The step building two-dimensional silhouette is expressed as follows.First, to initial point P0 and the tangent line vector T0 using formula (5) to find at a P0, wherein θ ' p is designated as the incident ray I0 that 2 π are the direction reflection being parallel to optical axis by surface.Then, find a P1, be located at the point of the incident ray i1 and tangent vector T0 of intersection.It follows that again find the tangent line vector T1 at a P1 with formula (5).Then finding a P2, it is positioned at the some I2 and tangent vector T1 of incident ray of infall.Repeat said process, until all of P point is found, and the whole two-dimensional silhouette of Free Surface can with under the help of CAD software program, the P-of gained point is built.But, remain slope profile between each some place, any two continuous print P-point and the method based on high-order moment [13] or [14] interpolations of B-spline function should be used to construct.

In order to illustrate, the 3rd multinomial is given by

P (x)=ax³+bx²+cx+d(14)

Such as fruit dot (P_n1, P_n2(P_(n+1)1, P_(n+1)2) in the coordinate of Pn and P (n+1) be given by, then we have following relation:

$\begin{array}{c}{P}_{n2}={\mathrm{aP}}_{n1}^3+{\mathrm{bP}}_{n1}^2+{\mathrm{cP}}_{n1}+d\\ P_{(n+1)2}={\mathrm{aP}}_{(n+1)1}^3+{\mathrm{bP}}_{(n+1)1}^2+{\mathrm{cP}}_{(n+1)1}+d\end{array}---\left(15\right)$

With

$\begin{array}{c}\frac{dp\left(P_{n1}\right)}{dx}={\mathrm{tan\θ}}_{T_n}=3{\mathrm{aP}}_{n1}^2+2{\mathrm{bP}}_{n1}+c\\ \frac{dp\left(P_{(n+1)1}\right)}{dx}={\mathrm{tan\θ}}_{T_{n+1}}=3{\mathrm{aP}}_{(n+1)1}^2+2{\mathrm{bP}}_{(n+1)1}+c\end{array}---\left(16\right)$

By while solving equation (15) and (16) value of a, b, c and d that obtains, the profile (n+1) between some Pn and P therefore, by giving (x, p (x)) withP_(n+1)1< x < P_n1..Once obtain two-dimensional silhouette, the free form surface of described Three-dimensional Axisymmetric, therefore can be rotated establishment by 2D profile about optical axis.

Light is sent by LED light source 5, some light forms emergent light after reflector 4 outer surface first time is refracted to lens 2 refraction, another part light forms emergent light after reflecting without reflector 4 direct projection to lens 2, for different use occasions, under the premise not losing hot spot characteristic, improve light utilization ratio.

After adopting the technical scheme that the invention described above provides, compared with prior art, it is possible to obtain following beneficial effect:

1. it is effectively improved light utilization, makes the rays pass through lens refraction that reflector cannot be refracted to achieve the goal；

2. can according to different fields of employment with the high-powered LED lamp of variation light distribution structure described in, it is provided that the different rising angle such as narrow middle width, and cost will not increase；

3. heavy light-configuration mode is modified to practical small and exquisite light distribution structure, effectively reduces production and transport cost；

4. can be applicable to the light fixture of reality described in the high-powered LED lamp of variation light distribution structure, weight is lighter to make this kind light fixture to accomplish, volume is less, and important contribution is made in the development for LED industry.

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

Claims (9)

1. the high-powered LED lamp with variation light distribution structure, it is characterised in that include lens trim ring, lens, reflector, light source, heat-conducting plate, radiator, heat pipe, radiator capping water proof ring, radiator capping, power fixing frame and power supply；

Heat-conducting plate contacts with radiator inner cylinder face for circular sheet material and external cylindrical surface, heat pipe contacts with the translot bottom surface in the middle of heat-conducting plate and contacts with the translot bottom surface on the radiator inner circle face of cylinder simultaneously, light source bottom surface contacts with heat-conducting plate end face and heat pipe, radiator capping water proof ring end face is in same plane and concentric with radiator bottom surface, radiator capping bottom surface is in same plane and concentric with radiator capping water proof ring bottom surface, power fixing frame bottom surface is in same plane and concentric with radiator capping end face, power supply bottom surface and power fixing frame end face are in same plane and concentric, described lens base and radiator end face are in same plane and concentric, lens trim ring bottom surface and radiator end face are in same plane and concentric；

Wherein, described reflector is fixed on radiator end face, the parabolical focus of reflector is in reflector bottom surface, reflector bottom surface has circular hole or square hole, source plane and the parabolical focus of reflector are in same datum level, and the center of the circular hole of reflector bottom surface or square hole is identical with the source plane center of circle, lens base and reflector end face are in same datum level and concentric.

2. as claimed in claim 1 a kind of with variation light distribution structure high-powered LED lamp, it is characterised in that: the exit plane of described light source is circular or square.

3. as claimed in claim 2 a kind of with variation light distribution structure high-powered LED lamp, it is characterised in that: the circular hole of described reflector bottom surface or square hole 0.2mm bigger than the diameter of the exit plane of light source or the length of side.

4. a kind of high-powered LED lamp with variation light distribution structure as claimed in claim 1, it is characterised in that: the bottom surface of described lens be circular, and it is tangent to have land edges in circular inner hole and lens.

5. as claimed in claim 1 or 2 a kind of with variation light distribution structure high-powered LED lamp, it is characterised in that: the reflecting surface of described reflector is parabola, and surface is made up of multiple monomer plane reflection unit.

6. as claimed in claim 1 a kind of with variation light distribution structure high-powered LED lamp, it is characterised in that: described lens are made up of glass, polymethyl methacrylate or Merlon.

7. a kind of high-powered LED lamp with variation light distribution structure as described in claim 1 or 6, it is characterised in that: described reflector surface adds blasting treatment by vacuum plating, anodic oxidation or anodic oxidation.

8. as claimed in claim 1 or 2 a kind of with variation light distribution structure high-powered LED lamp, it is characterised in that: described with variation light distribution structure high-powered LED lamp also include suspension ring, light fixture rotary fixed bracket, light fixture rotary fixed bracket adaptor.Described suspension ring screw thread external cylindrical surface contacts with power supply end face screw thread inner cylinder face, and the contacts side surfaces of light fixture rotary fixed bracket connector and radiator, light fixture rotary fixed bracket contacts with light fixture rotary fixed bracket adaptor end face.

9. as claimed in claim 1 a kind of with variation light distribution structure high-powered LED lamp, it is characterised in that: scribble heat-conducting silicone grease between described light source and heat-conducting plate.