WO2019033631A1 - 易散热的led面光源射灯 - Google Patents

易散热的led面光源射灯 Download PDF

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Publication number
WO2019033631A1
WO2019033631A1 PCT/CN2017/115180 CN2017115180W WO2019033631A1 WO 2019033631 A1 WO2019033631 A1 WO 2019033631A1 CN 2017115180 W CN2017115180 W CN 2017115180W WO 2019033631 A1 WO2019033631 A1 WO 2019033631A1
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Prior art keywords
light source
plate
light guide
heat
curved
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PCT/CN2017/115180
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English (en)
French (fr)
Inventor
陈志峰
陈婷
陈超
江波
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梅州江南电器有限公司
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Publication of WO2019033631A1 publication Critical patent/WO2019033631A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02Combinations of only two kinds of elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/502Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00Planar light sources
    • F21Y2105/10Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Definitions

  • the invention relates to an LED lamp, and more particularly to an LED surface light source lamp which is easy to dissipate heat.
  • LED energy-saving lamps are favored by the people and supported by the country with their remarkable characteristics of energy saving, health, environmental protection and long life.
  • the glare is not well handled, which not only affects the lighting effect, but is also harmful to the human eye.
  • the optical diffuser developed by the company itself, the glare problem was effectively solved, and the lighting effect was further improved.
  • the subsequent research it was found that due to the diffuse reflection effect of the optical diffuser, the back side of the light source also became bright, and this part of the light was wasted, which affected the luminaire to exert its optimal illumination effect.
  • the aluminum substrate is generally attached to the aluminum alloy heat dissipation plate to improve the heat dissipation efficiency.
  • This structure causes the lamp to have high quality and high cost.
  • the object of the present invention is to provide a light-emitting LED surface light source lamp which is compact and novel, has a good heat dissipation effect and long service life, and is easy to dissipate.
  • an easy-to-dissipate LED surface light source spotlight comprises an aluminum substrate, and a plurality of LED lamp beads are distributed on the aluminum substrate, wherein the aluminum substrate is connected with a mounting frame through a connecting member;
  • the mounting bracket is composed of a mounting plate and at least two connecting plates spaced apart from each other on the mounting plate in the longitudinal direction, and the connecting plate is hinged with the connecting member.
  • the connecting member is a connecting rotating block corresponding to the connecting plate, and the connecting rotating block comprises a rotating plate at a proximal end of the rotating plate.
  • Coaxial inner connecting sleeve and connecting outer sleeve are respectively arranged on the two sides of the center, and the connecting plate is provided with a connecting hole adapted to the outer diameter of the connecting inner sleeve or a connecting ring adapted to the inner diameter of the connecting outer sleeve.
  • a connecting block connected to the aluminum substrate is arranged on the upper end of the connecting shell on both sides of the connecting sleeve, and the aluminum substrate is connected with the connecting block by screws; two curved adjusting lengths are symmetrically arranged on the connecting plate on both sides of the connecting hole or the connecting ring
  • the hole is respectively provided with a first screw hole on the rotating pallet corresponding to the two curved adjusting long holes, and the adjusting screw is screwed through the curved adjusting long hole and the first screw hole.
  • the two sides of the rotating pallet are respectively provided with arc-shaped reinforcing ribs corresponding to the curved adjusting long holes, and the first screw holes are correspondingly arranged in the curved reinforcing
  • the proximal ends of the ribs are higher than the height of the curved ribs, and the height of the connecting jacket is the same as the height of the curved ribs.
  • the mounting plate is composed of two oppositely disposed Z-shaped mounting plates and a power supply plate sandwiched between the Z-shaped mounting plates;
  • the connecting plate has two Blocks and are integrally formed with the Z-shaped mounting plate;
  • a driving power source is arranged in the mounting groove formed by the Z-shaped mounting plate and the power supply plate, and the driving power output end is connected with the LED lamp bead circuit.
  • the connecting member is an aluminum alloy heat sink, and a mounting plane adapted to the aluminum substrate is formed on the aluminum alloy heat sink, and is respectively disposed on both sides of the aluminum alloy heat sink.
  • a rotating shaft hole There is a rotating shaft hole, and a connecting ring matched with the rotating shaft hole is arranged on the connecting plate, and two curved adjusting long holes are symmetrically arranged on the connecting plate on both sides of the connecting ring, corresponding to the two curved adjusting long holes
  • the aluminum alloy heat sink is respectively provided with a second screw hole, and the adjusting screw is screwed through the curved adjusting long hole and the second screw hole.
  • the back side of the connecting plate is provided with a plurality of reinforcing ribs along the length and the width direction.
  • a light guide cover is arranged on the periphery of the LED lamp bead, a lower seal groove is arranged along the circumferential direction of the lower end surface of the light guide cover, and a T-shaped cross section is arranged in the lower seal groove.
  • the sealing ring and the light guide cover are sealed by the lower sealing ring and the contact surface; the upper end surface of the light guide cover is provided with an upper sealing groove in the circumferential direction, and the upper sealing groove is provided with an upper sealing ring having a T-shaped cross section, and is sealed on the upper surface.
  • a transparent guard plate is arranged on the upper end of the ring, and a positioning pressure ring is arranged on the end edge of the transparent shield plate, and the positioning pressure ring and the upper end of the light guide cover are fixedly connected by screws.
  • the light guide cover is composed of an extension portion and a light guide portion having a flared structure; an angle ⁇ between the inner wall of the light guide portion and the vertical surface is 10° ⁇ 45°; a mounting step is formed at a contact portion between the extending portion and the light guiding portion, and an optical diffusing plate is disposed at the mounting step, and a distance between the optical diffusing plate and the end surface of the light guiding opening of the light guiding cover is 20 to 100 mm.
  • the inner surface of the light guiding portion is provided with a reflective plating layer or a reflective sleeve.
  • At least one side of the optical diffusing plate is distributed with a plurality of light refraction floating points, and each of the light refracting floating points is a positive quadrangular pyramid; the positive square pyramids
  • the bottom side has a length of 0.5 to 2.5 mm and a height of 0.5 to 2.5 mm; and the optical diffusing plate and the light refraction floating point are integrally formed.
  • the aluminum substrate is directly connected to the mounting frame through the connecting member, and the aluminum substrate does not abut the mounting surface, so that the back surface of the aluminum substrate can be effectively convected, and the heat is quickly dissipated, and the service life is obtained with a simple structure and low cost.
  • the long, stable light source has an unexpectedly significant effect.
  • the light guide cover and the optical diffuser cover cooperate to scatter the front end portion of the optical diffuser cover to the front of the lamp to be collected and guided to the front of the lamp, thereby further improving the effective use of the light source, so that the light in front of the lamp Strongly improve.
  • the use of an optical diffuser cover with a light guide not only effectively solves the glare problem, but also makes the light in front of the lamp soft and glare, and significantly increases the light intensity in front of the lamp.
  • the use of the light guide is to effectively collect the light that is diffused and reflected by the optical diffuser to the rear of the lamp, and then to the front to avoid the waste of light, and if this application is not used.
  • the optical diffuser does not expose the light to the back side of the fixture.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • FIG. 2 is a schematic view showing the assembly structure of the connecting member and the mounting bracket in Embodiment 1 of the present invention
  • Figure 3 is a schematic exploded view of Embodiment 1 of the present invention.
  • Figure 4 is a schematic structural view of Embodiment 2 of the present invention.
  • Figure 5 is a schematic view showing the assembly structure of the connecting member and the mounting in the second embodiment of the present invention.
  • Figure 6 is a schematic structural view of Embodiment 3 of the present invention.
  • Figure 7 is a schematic structural view of Embodiment 4 of the present invention.
  • Figure 8 is a graph showing the light intensity distribution of a non-diffusing plate without a light guide surface light source spotlight in an experimental example of the present invention
  • Figure 9 is a illuminance distance chart of a non-diffusing plate without a light guide surface light source spotlight in an experimental example of the present invention.
  • Figure 10 is a graph showing the utilization coefficient curve of the non-diffusing plate without the light guide face light source spotlight as the street lamp in the experimental example of the present invention.
  • Figure 11 is a graph showing the light intensity distribution of a diffuser-free light guide face light source spotlight in an experimental example of the present invention.
  • Figure 12 is a graph showing the illuminance distance of a diffuser-free light-emitting cover surface light source spotlight in an experimental example of the present invention
  • Figure 13 is a graph showing the utilization coefficient curve of a non-light-shielding surface light source with a diffusing plate as a street lamp in an experimental example of the present invention
  • Figure 14 is a graph showing the light intensity distribution of a diffuser-free light guide with a distant surface light source in the experimental example of the present invention.
  • Figure 15 is a graph showing the illuminance distance of a diffuser-free light guide with a long-distance light source spotlight in an experimental example of the present invention
  • Figure 16 is a graph showing the utilization coefficient curve of a non-diffusion plate with a light guide remote-surface light source spotlight as a street lamp in an experimental example of the present invention
  • Figure 17 is a graph showing the light intensity distribution of a near-surface light source spotlight with a diffuser with a diffuser in an experimental example of the present invention
  • Figure 18 is a illuminance distance chart of a near-surface light source spotlight with a diffuser with a diffuser in an experimental example of the present invention
  • Figure 19 is a graph showing the utilization factor curve of a diffuser with a light guide close-up light source spotlight as a street light in an experimental example of the present invention
  • Figure 20 is a graph showing the light intensity distribution of a light source spotlight with a diffusion plate with a diffuser in the experimental example of the present invention.
  • Figure 21 is a graph showing the illuminance distance of a light source spotlight with a diffusion plate with a diffuser in an experimental example of the present invention
  • Fig. 22 is a graph showing the utilization coefficient curve when the light-emitting surface light source with a diffuser is used as a street light in the light guide of the diffusion plate of the present invention.
  • an easy-to-dissipate LED surface light source lamp of the present invention comprises an aluminum substrate 1 , and a plurality of LED lamp beads 2 are distributed on the aluminum substrate 1 , wherein the aluminum substrate 1 is A mounting bracket 4 is connected by a connecting member 3; the mounting bracket 4 is composed of a mounting plate 4a and at least two connecting plates 4b spaced apart from each other on the mounting plate 4a in the longitudinal direction, and the connecting plate 4b is hinged to the connecting member 3.
  • a plurality of reinforcing ribs 4h are provided along the length and width directions on the back surface of the connecting plate 4b. The reinforcing ribs are formed by pressing directly on the back side of the connecting plate by a stamping process.
  • the connecting member 3 is a connecting rotating block corresponding to the connecting plate 4b, and the connecting rotating block includes a rotating plate 3a on both sides of the center of the upper end portion of the upper portion of the rotating plate 3a.
  • a concentric inner connecting sleeve 3b and a connecting outer sleeve 3c are respectively arranged on the plate surface, and a connecting ring 4d adapted to the inner diameter of the connecting outer sleeve 3c is arranged on the connecting plate 4b, and the upper end of the supporting plate 3a on both sides of the connecting outer sleeve 3c is provided.
  • connecting block 3d connected to the aluminum substrate 1, and the aluminum substrate 1 is connected to the connecting block 3d by screws; two curved adjusting long holes 4e are symmetrically arranged on the connecting plate 4b on both sides of the connecting hole 4c or the connecting ring 4d,
  • the rotating plate 3a corresponding to the two curved adjusting long holes 4e is respectively provided with a first screw hole 3e, and the adjusting screw is screwed through the curved adjusting long hole 4e with the first screw hole 3e.
  • arc-shaped reinforcing ribs 3f corresponding to the curved adjustment long holes 4e are respectively provided on both sides of the rotating pallet 3a, and the first screw holes 3e are correspondingly arranged on the curved reinforcing ribs 3f.
  • a light guide cover 6 is disposed on the periphery of the LED lamp bead 2.
  • the lower end surface of the light guide cover 6 is provided with a lower seal groove 6a in the circumferential direction, and a lower seal ring 6a having a T-shaped cross section is arranged in the lower seal groove, and the light guide cover 6 passes through
  • the lower sealing ring 6a is sealed with the contact surface that is in contact with each other;
  • the upper end surface of the light guide cover 6 is circumferentially provided with an upper sealing groove 6b, and the upper sealing groove 6b is provided with an upper sealing ring 6c having a T-shaped cross section, and the upper sealing ring 6c
  • the upper end is provided with a transparent cover 7 , and a positioning pressure ring 8 is disposed at an upper end edge of the transparent cover 7 , and the positioning pressure ring 8 and the upper end of the light guide cover 6 are fixedly connected by screws.
  • the light guide cover 6 is composed of an extending portion 6d and a light guiding portion 6e having a flared structure; an angle ⁇ between the inner wall and the vertical surface of the light guiding portion 6e is 10° to 45°; at the extending portion 6d and the guiding portion A mounting step is formed at the contact portion of the light portion 6e, and an optical diffusing plate 9 is disposed at the mounting step, and a distance between the optical diffusing plate 9 and the end surface of the light guiding opening of the light guiding cover is 20 to 100 mm.
  • a reflective plating layer 10 is provided on the inner surface of the light guiding portion 6e.
  • a plurality of light refraction floating points 9a are disposed on at least one side of the optical diffusing plate 9, and each of the light refraction floating points 9a is a regular quadrangular pyramid; the bottom side of each of the regular quadrangular pyramids is 0.5 to 2.5 mm long. The height is 0.5 to 2.5 mm; the optical diffusing plate 9 and the light refraction floating point 9a are integrally formed as a whole.
  • a heat-dissipating LED surface light source lamp of the present invention has the same structure as that of Embodiment 1, except that the connecting plate 4b is provided with a connecting inner sleeve 3b. The diameter-adapted connection hole 4c. At the same time, a reflective cover 11 is provided on the inner surface of the light guiding portion 6f. The manner of use is the same as in the first embodiment.
  • a heat-dissipating LED surface light source lamp of the present invention has the same structure as that of Embodiment 2, except that the connecting member 3 is an aluminum alloy heat sink and is formed on the aluminum alloy heat sink.
  • the connecting member 3 is an aluminum alloy heat sink and is formed on the aluminum alloy heat sink.
  • Two arc-shaped adjusting long holes 4e are symmetrically arranged on the side connecting plate 4b, and second screw holes 3h are respectively arranged on the aluminum alloy heat dissipating bodies corresponding to the two curved adjusting long holes 4e, and the adjusting screws are adjusted through the arc
  • the long hole 4e is screwed to the second screw hole 4h.
  • This structure with aluminum alloy heat sink is suitable for high power spotlights.
  • a heat-dissipating LED surface light source lamp of the present invention has the same structure as that of Embodiment 3. The difference is that the structure of the mounting frame is different, and the mounting plate 4a is provided by two opposite pieces.
  • the Z-shaped mounting plate 4f is composed of a power supply plate 4g interposed between the Z-shaped mounting plates 4f; the connecting plate 4b has two pieces and is integrally formed with the Z-shaped mounting plate 4f; the Z-shaped mounting plate 4f and the power supply
  • a driving power source 5 is disposed in the mounting groove formed by the matching of the supporting plate 4g, and the output end of the driving power source 5 is electrically connected to the LED lamp bead 2.
  • the same type of surface light source lamp which is not used in the light source spotlight and the unused light guide or the diffuser or the light guide and the diffusion plate are used under the same conditions.
  • the color temperature of the surface light source lamp is 5000K
  • the power is 30W
  • the test result is shown in Figure 8-22.
  • the surface light source in the figure is used as the utilization coefficient curve table of the street lamp, and the left line is from top to bottom and right.
  • the side lines are from bottom to top, respectively 0°, 5°, 10°, 15°.
  • the main reference is the right side line.
  • the tabulation is as follows:
  • the diffuser plate with a light guide cover close-range light source spotlight is the structure described in Embodiment 1, and the angle ⁇ between the inner wall and the vertical surface of the light guiding portion 6e is 40°.
  • the distance between the optical diffuser plate 9 and the end face of the light guide opening of the light guide is 25 mm.
  • the length and height of the bottom side of the regular square pyramid on the optical diffuser 9 are both 1.8 mm.
  • the diffuser plate with a light guide cover mid-surface light source spotlight is the structure described in Embodiment 2, and the angle ⁇ between the inner wall and the vertical surface of the light guiding portion 6e is 15°.
  • the distance between the optical diffuser plate 9 and the end face of the light guide opening of the light guide is 65 mm.
  • the length and height of the bottom side of the regular square pyramid on the optical diffuser 9 are both 0.65 mm.
  • the spotlight of the present invention has no light guide surface light source spotlight compared to the non-diffusing plate, although the luminous flux is very different, The center light intensity is very close, and the illumination distance is also close. That is to say, the surface light source spotlight has substantially the same illumination effect as the diffuser plate without the light guide cover surface light source after the diffusion plate and the light guide cover are added, but the surface light source spotlight of the present invention has The effect of soft light and no glare.
  • the non-diffusing board has no light guide surface light source spotlight, but has the disadvantage of light glare. This effect is very significant.
  • the spotlight of the present invention has a center after the addition of the light guide, compared to the spotlight with only the diffused cover light source.
  • the light intensity is remarkably improved, and the irradiation angle is reduced and the irradiation distance is lengthened.
  • the spotlight of the present invention has a larger illumination angle than the diffuser-free light guide with a diffuser.
  • the effective illumination range will also increase accordingly.
  • the utilization ratio of the present invention on the side of the road side and the far side of the diffuser without the diffuser are used as street lamps under the same distance/height conditions.
  • the light source spotlights are similar, but much higher than the non-diffusing plate without the light guide face light source spotlight and only the diffused cover face light source spotlight.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

一种易散热的LED面光源射灯,包括铝基板,在铝基板上分布有若干LED灯珠,其中铝基板通过连接件连接有安装架;安装架由安装板和沿长度方向间隔设置在安装板上的至少两个连接板组成,连接板与连接件铰接;实现灯具的结构紧凑、散热效果好,并能够用于户外照明、广告照明。

Description

易散热的LED面光源射灯 技术领域
本发明涉及一种LED灯具,更具体地说,尤其涉及一种易散热的LED面光源射灯。
背景技术
LED节能灯作为一种新型的照明光源,以节能、健康、环保及寿命长的显著特点,受到了广大人民的青睐以及国家的大力扶持。LED灯在实际使用过程中,要解决散热和眩光两个常见的问题,散热不好,就会大幅缩短灯芯的寿命。眩光处理不好,不仅影响照明效果,而且对人眼有害。前期,在采用申请自行研发的光学扩散罩后,眩光问题得到有效解决,照明效果得到进一步提高。但是在后续的研究中发现,由于光学扩散罩的漫反射效果,使得光源背面也变得明亮起来,这部分光线被浪费掉了,从而影响了灯具发挥其最优的照射效果。
另外,为解决LED灯具的散热问题,普遍都是采用将铝基板贴设在铝合金散热板以提高散热效率,这种结构,造成灯具质量重、成本较高。
发明内容
本发明的目的在于针对上述现有技术的不足,提供一种结构紧凑、新颖,散热效果好且使用寿命长的易散热的LED面光源射灯。
本发明的技术方案是这样实现的:一种易散热的LED面光源射灯,包括铝基板,在铝基板上分布有若干LED灯珠,其中所述铝基板通过连接件连接有安装架;所述安装架由安装板和沿长度方向间隔设置在安装板上的至少两个连接板组成,连接板与连接件铰接。
上述的一种易散热的LED面光源射灯中,所述连接件为与连接板一一对应的连接旋转托块,所述连接旋转托块包括旋转托板,在旋转托板上部近端部的中心两侧板面上分别设有同轴心的连接内套和连接外套,在连接板上设有与连接内套外径相适应的连接孔或设有与连接外套内径相适应的连接环,在连接外套两侧的托板上端设有与铝基板连接的连接块,铝基板通过螺丝与连接块连接;在连接孔或连接环两侧的连接板上对称设置有两个弧形调节长孔,在两个弧形调节长孔对应的旋转托板上分别设有第一螺丝孔,调节螺丝穿过弧形调节长孔与第一螺丝孔螺纹连接。
上述的一种易散热的LED面光源射灯中,所述旋转托板两侧面上分别设有与弧形调节长孔一一对应的弧形加强筋,第一螺丝孔对应设置在弧形加强筋的两端近端部;所述连接内套的高度比弧形加强筋的高度高,所述连接外套的高度与弧形加强筋的高度相同。
上述的一种易散热的LED面光源射灯中,所述安装板由两块相对设置的Z形安装板和夹设在Z形安装板之间的电源托板组成;所述连接板共有两块且分别与Z形安装板一体成型; 在Z形安装板与电源托板配合形成的安装槽内设有驱动电源,驱动电源输出端与LED灯珠电路连接。
上述的一种易散热的LED面光源射灯中,所述连接件为铝合金散热体,在铝合金散热体上成形有与铝基板相适应的安装平面,在铝合金散热体两侧分别设有旋转轴孔,在连接板上设有与旋转轴孔相配合的连接环,在连接环两侧的连接板上对称设置有两个弧形调节长孔,在两个弧形调节长孔对应的铝合金散热体上分别设有第二螺丝孔,调节螺丝穿过弧形调节长孔与第二螺丝孔螺纹连接。
上述的一种易散热的LED面光源射灯中,所述连接板背面沿长度和宽度方向设置有若干条加强凸筋。
上述的一种易散热的LED面光源射灯中,所述LED灯珠***设有导光罩,导光罩下端面沿周向设有下密封槽,在下密封槽内设有截面呈T形的下密封圈,导光罩通过下密封圈与相接触的接触面密封;在导光罩上端面沿周向设有上密封槽,在上密封槽内设有截面呈T形的上密封圈,在上密封圈上端设有透明护板,在透明护板上端边缘设有定位压环,定位压环与导光罩上端通过螺丝固定连接。
上述的一种易散热的LED面光源射灯中,所述导光罩由延伸部和呈喇叭形结构的导光部组成;所述导光部内壁与竖直面之间的夹角α为10°~45°;在延伸部与导光部的接触处形成安装台阶,在安装台阶处设有光学扩散板,光学扩散板至导光罩出光口端面之间的间距为20~100mm。
上述的一种易散热的LED面光源射灯中,所述导光部内表面设有反光电镀层或套设有反光套。
上述的一种易散热的LED面光源射灯中,所述光学扩散板的至少一侧面上分布有若干光线折射浮点,所述各光线折射浮点为正四棱锥体;所述各正四棱锥体的底面边长为0.5~2.5mm,高为0.5~2.5mm;所述的光学扩散板与光线折射浮点为一体成型的整体结构。
本发明采用上述结构后,铝基板通过连接件直接与安装架连接,铝基板不紧贴安装面,使得铝基板背面可以有效对流,进行快速散热,以简洁的结构、低廉的成本,获得使用寿命长、光效稳定的光源,具有意想不到的显著效果。
同时,当近距离使用射灯时,通过导光罩与光学扩散罩配合,将光学扩散罩前端部分散射至灯具后面的光线收集再导向灯具前面,进一步提高光源的有效利用,使得灯具前方的光强进一步提高。采用光学扩散罩配合导光罩,不仅有效解决眩光问题,使得灯具前方的光照柔和不刺眼,而且显著提高了灯具前方的光强。导光罩的使用,是为了将被光学扩散罩漫反射至灯具照射方向后方的光线有效收集再投向前方,避免光线的浪费,而如果不采用本申请 的光学扩散罩,则不会出现光线照射至灯具后侧的问题。
附图说明
下面结合附图中的实施例对本发明作进一步的详细说明,但并不构成对本发明的任何限制。
图1是本发明实施例1的结构示意图;
图2是本发明实施例1中连接件与安装架的装配结构示意图;
图3是本发明实施例1的分解结构示意图;
图4是本发明实施例2的结构示意图;
图5是本发明实施例2中连接件与安装加的装配结构示意图;
图6是本发明实施例3的结构示意图;
图7是本发明实施例4的结构示意图;
图8是本发明实验例中无扩散板无导光罩面光源射灯的光强分布曲线图;
图9是本发明实验例中无扩散板无导光罩面光源射灯的照度距离图表;
图10是本发明实验例中无扩散板无导光罩面光源射灯作为路灯时的利用系数曲线图表;
图11是本发明实验例中带扩散板无导光罩面光源射灯的光强分布曲线图;
图12是本发明实验例中带扩散板无导光罩面光源射灯的照度距离图表;
图13是本发明实验例中带扩散板无导光罩面光源射灯作为路灯时的利用系数曲线图表;
图14是本发明实验例中无扩散板带导光罩远距面光源射灯的光强分布曲线图;
图15是本发明实验例中无扩散板带导光罩远距面光源射灯的照度距离图表;
图16是本发明实验例中无扩散板带导光罩远距面光源射灯作为路灯时的利用系数曲线图表;
图17是本发明实验例中带扩散板带导光罩近距面光源射灯的光强分布曲线图;
图18是本发明实验例中带扩散板带导光罩近距面光源射灯的照度距离图表;
图19是本发明实验例中带扩散板带导光罩近距面光源射灯作为路灯时的利用系数曲线图表;
图20是本发明实验例中带扩散板带导光罩中距面光源射灯的光强分布曲线图;
图21是本发明实验例中带扩散板带导光罩中距面光源射灯的照度距离图表;
图22是本发明实验例中带扩散板带导光罩中距面光源射灯作为路灯时的利用系数曲线图表。
图中:铝基板1、LED灯珠2、连接件3、旋转托板3a、连接内套3b、连接外套3c、连接块3d、第一螺丝孔3e、弧形加强筋3f、旋转轴孔3g、第二螺丝孔3h、安装架4、安装板 4a、连接板4b、连接孔4c、连接环4d、弧形调节长孔4e、Z形安装板4f、电源托板4g、加强凸筋4h、驱动电源5、导光罩6、下密封圈6a、上密封槽6b、上密封圈6c、延伸部6d、导光部6e、透明护板7、定位压环8、光学扩散板9、光线折射浮点9a、反光电镀层10、反光套11。
具体实施方式
实施例1
参阅图1至图3所示,本发明的一种易散热的LED面光源射灯,包括铝基板1,在铝基板1上分布有若干LED灯珠2,其特征在于,所述铝基板1通过连接件3连接有安装架4;所述安装架4由安装板4a和沿长度方向间隔设置在安装板4a上的至少两个连接板4b组成,连接板4b与连接件3铰接。为了提高连接板的强度,在连接板4b背面沿长度和宽度方向设置有若干条加强凸筋4h。加强凸筋采用冲压工艺直接在连接板背面压冲形成。
在本实施例中,所述连接件3为与连接板4b一一对应的连接旋转托块,所述连接旋转托块包括旋转托板3a,在旋转托板3a上部近端部的中心两侧板面上分别设有同轴心的连接内套3b和连接外套3c,在连接板4b上设有与连接外套3c内径相适应的连接环4d,在连接外套3c两侧的托板3a上端设有与铝基板1连接的连接块3d,铝基板1通过螺丝与连接块3d连接;在连接孔4c或连接环4d两侧的连接板4b上对称设置有两个弧形调节长孔4e,在两个弧形调节长孔4e对应的旋转托板3a上分别设有第一螺丝孔3e,调节螺丝穿过弧形调节长孔4e与第一螺丝孔3e螺纹连接。为了提高连接安装的稳定性,在旋转托板3a两侧面上分别设有与弧形调节长孔4e一一对应的弧形加强筋3f,第一螺丝孔3e对应设置在弧形加强筋3f的两端近端部;所述连接内套3b的高度比弧形加强筋3f的高度高,所述连接外套3c的高度与弧形加强筋3f的高度相同。
同时,在LED灯珠2***设有导光罩6,导光罩6下端面沿周向设有下密封槽6a,在下密封槽内设有截面呈T形的下密封圈6a,导光罩6通过下密封圈6a与相接触的接触面密封;在导光罩6上端面沿周向设有上密封槽6b,在上密封槽6b内设有截面呈T形的上密封圈6c,在上密封圈6c上端设有透明护板7,在透明护板7上端边缘设有定位压环8,定位压环8与导光罩6上端通过螺丝固定连接。
导光罩6由延伸部6d和呈喇叭形结构的导光部6e组成;所述导光部6e内壁与竖直面之间的夹角α为10°~45°;在延伸部6d与导光部6e的接触处形成安装台阶,在安装台阶处设有光学扩散板9,光学扩散板9至导光罩出光口端面之间的间距为20~100mm。在导光部6e内表面设有反光电镀层10。所述光学扩散板9的至少一侧面上分布有若干光线折射浮点9a,所述各光线折射浮点9a为正四棱锥体;所述各正四棱锥体的底面边长为0.5~2.5mm, 高为0.5~2.5mm;所述的光学扩散板9与光线折射浮点9a为一体成型的整体结构。
实施例2
参阅图4和图5所示,本发明的一种易散热的LED面光源射灯,其结构与实施例1基本相同,不同之处在于,在连接板4b上设有与连接内套3b外径相适应的连接孔4c。同时,在导光部6f内表面设有反光套11。其使用方式与实施例1相同。
实施例3
参阅图6所示,本发明的一种易散热的LED面光源射灯,其结构与实施例2基本相同,不同之处在于,连接件3为铝合金散热体,在铝合金散热体上成形有与铝基板1相适应的安装平面,在铝合金散热体两侧分别设有旋转轴孔3g,在连接板4b上设有与旋转轴孔3g相配合的连接环4d,在连接环4d两侧的连接板4b上对称设置有两个弧形调节长孔4e,在两个弧形调节长孔4e对应的铝合金散热体上分别设有第二螺丝孔3h,调节螺丝穿过弧形调节长孔4e与第二螺丝孔4h螺纹连接。这种带铝合金散热体的结构,适合于大功率射灯。
实施例4
参阅图7所示,本发明的一种易散热的LED面光源射灯,其结构与实施例3基本相同,不同之处在于安装架的结构不同,所述安装板4a由两块相对设置的Z形安装板4f和夹设在Z形安装板4f之间的电源托板4g组成;所述连接板4b共有两块且分别与Z形安装板4f一体成型;在Z形安装板4f与电源托板4g配合形成的安装槽内设有驱动电源5,驱动电源5输出端与LED灯珠2电路连接。
实验例
采用追踪探头式运动反光镜分布光度计,对本申请面光源射灯和未使用导光罩或者未使用扩散板或者导光罩和扩散板均未使用的同款面光源射灯,在同等条件下,进行光度测试,面光源射灯的色温为5000K,功率为30W,测试结果如图8-图22,图中的面光源作为路灯时的利用系数曲线表,左侧线条由上至下、右侧线条由下至上,分别为0°、5°、10°、15°。作为路灯时,主要参考的是右侧线条。同时根据测试结构,制表如下:
表中,
带扩散板带导光罩近距面光源射灯为实施例1所述的结构,其导光部6e内壁与竖直面之间的夹角α为40°。光学扩散板9至导光罩出光口端面之间的间距为25mm。其光学扩散板9上的正四棱锥体的底面边长和高均为1.8mm。
带扩散板带导光罩中距面光源射灯为实施例2所述的结构,其导光部6e内壁与竖直面之间的夹角α为15°。光学扩散板9至导光罩出光口端面之间的间距为65mm。其光学扩散板9上的正四棱锥体的底面边长和高均为0.65mm。
表一 光度检测结果之一
Figure PCTCN2017115180-appb-000001
表二 光度检测结果之二
Figure PCTCN2017115180-appb-000002
从上表结合图8、图9、图17、图18、图20和图21可知,本发明的射灯,相比无扩散板无导光罩面光源射灯,虽然光通量差距很大,但是中心光强却很接近,而且照度距离也接近。也即是说明,面光源射灯在增加扩散板和导光罩后,与无扩散板无导光罩面光源射灯相比,照明效果基本一样,但是本发明的面光源射灯,却具有光线柔和、不刺眼的优点。而无扩散板无导光罩面光源射灯,却存在光线刺眼的缺点。该效果,是非常显著的。
从上表结合图11、图12、图17、图18、图20和图21可知,本发明的射灯,相比只带扩散罩面光源射灯,其在增加了导光罩后,中心光强显著提高,而且照射角度缩小、照射距离变长。
从上表结合图14、图15、图17、图18、图20和图21可知,本发明的射灯,相比无扩散板带导光罩远距面光源射灯,其照射角度变大,有效照射范围也相应变大。
从图10、图13、图16、图19和图22可知,在同等的距离/高度条件下,作为路灯,本发明位于路边一侧的利用率和无扩散板带导光罩远距面光源射灯相近,但却远高于无扩散板无导光罩面光源射灯和只带扩散罩面光源射灯。
以上所举实施例为本发明的较佳实施方式,仅用来方便说明本发明,并非对本发明作任何形式上的限制,任何所属技术领域中具有通常知识者,若在不脱离本发明所提技术特征的范围内,利用本发明所揭示技术内容所作出局部更动或修饰的等效实施例,并且未脱离本发明的技术特征内容,均仍属于本发明技术特征的范围内。

Claims (10)

  1. 一种易散热的LED面光源射灯,包括铝基板(1),在铝基板(1)上分布有若干LED灯珠(2),其特征在于,所述铝基板(1)通过连接件(3)连接有安装架(4);所述安装架(4)由安装板(4a)和沿长度方向间隔设置在安装板(4a)上的至少两个连接板(4b)组成,连接板(4b)与连接件(3)铰接。
  2. 根据权利要求1所述的一种易散热的LED面光源射灯,其特征在于,所述连接件(3)为与连接板(4b)一一对应的连接旋转托块,所述连接旋转托块包括旋转托板(3a),在旋转托板(3a)上部近端部的中心两侧板面上分别设有同轴心的连接内套(3b)和连接外套(3c),在连接板(4b)上设有与连接内套(3b)外径相适应的连接孔(4c)或设有与连接外套(3c)内径相适应的连接环(4d),在连接外套(3c)两侧的托板(3a)上端设有与铝基板(1)连接的连接块(3d),铝基板(1)通过螺丝与连接块(3d)连接;在连接孔(4c)或连接环(4d)两侧的连接板(4b)上对称设置有两个弧形调节长孔(4e),在两个弧形调节长孔(4e)对应的旋转托板(3a)上分别设有第一螺丝孔(3e),调节螺丝穿过弧形调节长孔(4e)与第一螺丝孔(3e)螺纹连接。
  3. 根据权利要求2所述的一种易散热的LED面光源射灯,其特征在于,所述旋转托板(3a)两侧面上分别设有与弧形调节长孔(4e)一一对应的弧形加强筋(3f),第一螺丝孔(3e)对应设置在弧形加强筋(3f)的两端近端部;所述连接内套(3b)的高度比弧形加强筋(3f)的高度高,所述连接外套(3c)的高度与弧形加强筋(3f)的高度相同。
  4. 根据权利要求1所述的一种易散热的LED面光源射灯,其特征在于,所述安装板(4a)由两块相对设置的Z形安装板(4f)和夹设在Z形安装板(4f)之间的电源托板(4g)组成;所述连接板(4b)共有两块且分别与Z形安装板(4f)一体成型;在Z形安装板(4f)与电源托板(4g)配合形成的安装槽内设有驱动电源(5),驱动电源(5)输出端与LED灯珠(2)电路连接。
  5. 根据权利要求1或4所述的一种易散热的LED面光源射灯,其特征在于,所述连接件(3)为铝合金散热体,在铝合金散热体上成形有与铝基板(1)相适应的安装平面,在铝合金散热体两侧分别设有旋转轴孔(3g),在连接板(4b)上设有与旋转轴孔(3g)相配合的连接环(4d),在连接环(4d)两侧的连接板(4b)上对称设置有两个弧形调节长孔(4e),在两个弧形调节长孔(4e)对应的铝合金散热体上分别设有第二螺丝孔(3h),调节螺丝穿过弧形调节长孔(4e)与第二螺丝孔(4h)螺纹连接。
  6. 根据权利要求1所述的一种易散热的LED面光源射灯,其特征在于,所述连接板(4b)背面沿长度和宽度方向设置有若干条加强凸筋(4h)。
  7. 根据权利要求1所述的一种易散热的LED面光源射灯,其特征在于,所述LED灯珠(2) ***设有导光罩(6),导光罩(6)下端面沿周向设有下密封槽,在下密封槽内设有截面呈T形的下密封圈(6a),导光罩(6)通过下密封圈(6a)与相接触的接触面密封;在导光罩(6)上端面沿周向设有上密封槽(6b),在上密封槽(6b)内设有截面呈T形的上密封圈(6c),在上密封圈(6c)上端设有透明护板(7),在透明护板(7)上端边缘设有定位压环(8),定位压环(8)与导光罩(6)上端通过螺丝固定连接。
  8. 根据权利要求7所述的一种易散热的LED面光源射灯,其特征在于,所述导光罩(6)由延伸部(6d)和呈喇叭形结构的导光部(6e)组成;所述导光部(6e)内壁与竖直面之间的夹角α为10°~45°;在延伸部(6d)与导光部(6e)的接触处形成安装台阶,在安装台阶处设有光学扩散板(9),光学扩散板(9)至导光罩出光口端面之间的间距为20~100mm。
  9. 根据权利要求8所述的一种易散热的LED面光源射灯,其特征在于,所述导光部(6e)内表面设有反光电镀层(10)或套设有反光套(11)。
  10. 根据权利要求8所述的一种易散热的LED面光源射灯,其特征在于,所述光学扩散板(9)的至少一侧面上分布有若干光线折射浮点(9a),所述各光线折射浮点(9a)为正四棱锥体;所述各正四棱锥体的底面边长为0.5~2.5mm,高为0.5~2.5mm;所述的光学扩散板(9)与光线折射浮点(9a)为一体成型的整体结构。
PCT/CN2017/115180 2017-08-18 2017-12-08 易散热的led面光源射灯 WO2019033631A1 (zh)

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