WO2014089893A1 - 一种照明灯具 - Google Patents

一种照明灯具 Download PDF

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Publication number
WO2014089893A1
WO2014089893A1 PCT/CN2013/000659 CN2013000659W WO2014089893A1 WO 2014089893 A1 WO2014089893 A1 WO 2014089893A1 CN 2013000659 W CN2013000659 W CN 2013000659W WO 2014089893 A1 WO2014089893 A1 WO 2014089893A1
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WO
WIPO (PCT)
Prior art keywords
light
lighting fixture
driving power
led light
diffusion cover
Prior art date
Application number
PCT/CN2013/000659
Other languages
English (en)
French (fr)
Inventor
王耀海
徐正旺
Original Assignee
欧普照明股份有限公司
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Publication of WO2014089893A1 publication Critical patent/WO2014089893A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/12—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a luminaire, in particular to a luminaire.
  • LED ceiling lamp sold on the market includes a diffuser cover, a bottom plate, an LED light source, and a drive power source for powering the LED light source.
  • the LED light source and the driving power source are disposed in a cavity surrounded by the diffusion cover and the bottom plate.
  • the driving power source and the LED light source are mounted on the bottom plate, and the driving power source is disposed at the center of the bottom plate, and the LED light sources are uniformly distributed around the driving power source. In this way, the portion of the diffuser that faces the driving power source is weak, and the light of other portions is strong, resulting in uneven lighting of the diffuser cover. Summary of invention
  • the technical problem to be solved by the present invention is to provide a lighting fixture with uniform light.
  • the lighting fixture of the present invention includes an LED light source, a diffusion cover, a bottom plate, and a driving power source for supplying power to the LED light source, the LED light source and the driving power source being disposed by the diffusion cover and the bottom plate
  • the lighting fixture further includes a light guiding component that guides a portion of the light emitted by the LED light source to a portion of the diffusion cover facing the driving power source, the lighting fixture having a rated power greater than Equal to 0.1 watt.
  • the light guiding member is a polarizing lens
  • the polarizing lens includes a light incident surface, a reflective surface, and a light exiting surface; the light emitted by the LED light source enters the polarizing lens from the light incident surface, and then After the reflecting surface is reflected to the light emitting surface, it reaches a portion of the diffusion cover that faces the driving power source.
  • the polarizing lens is provided with a mounting surface, and a part of the mounting surface is concavely formed to form a circular arc surface, and the circular arc surface is the light incident surface.
  • the light-emitting surface is disposed obliquely with respect to the bottom plate.
  • the reflecting surface is an arc-shaped side surface connecting the mounting surface and the light-emitting surface.
  • the light-emitting surface is composed of a plurality of convex transparent surfaces.
  • the light guiding member is a reflector, and the reflector is provided with a reflecting surface that reflects a part of the light of the LED light source to a portion of the diffusion cover facing the driving power source.
  • the reflector is provided with a through hole
  • the driving power source is disposed in the through hole
  • an outer side surface of the reflector is a reflecting surface of the reflector.
  • the reflecting surface of the reflector is disposed obliquely with respect to the bottom plate.
  • the driving power source is installed at a center position of the bottom plate, and the LED light source is uniformly distributed around the driving power source.
  • Figure 1 is a schematic view of Embodiment 1 of a lighting fixture of the present invention.
  • Figure 2 is a plan view of the lighting fixture of Figure 1 with the diffuser removed;
  • Figure 3 is a cross-sectional view of the polarizing lens of Figure 1;
  • Figure 4 is a schematic view of a viewing angle of the polarizing lens of Figure 1;
  • Figure 5 is a schematic view of Embodiment 2 of the lighting fixture of the present invention
  • Figure 6 is a plan view of the lighting fixture of Figure 5 with the diffuser removed
  • Figure 7 is a cross-sectional view of the reflector of Figure 5;
  • Figure 8 is a perspective view of the reflector of Figure 5. Summary of the invention
  • the lighting fixture of this embodiment includes an LED light source 5, a diffusion cover 1, a bottom plate 2, and a driving power source 3 for supplying power to the LED light source 5.
  • the LED light source 5 and the driving power source 3 are disposed by the diffusion cover 1 and In the cavity surrounded by the bottom plate 2, the LED light source 5 is mounted on a sawtooth-shaped substrate 9, the substrate 9 is mounted on the bottom plate 2, and the driving power source 3 is also mounted on the bottom plate 2.
  • the lighting fixture further includes a light guiding member that guides a part of the light emitted by the LED light source 5 to a portion of the diffusion cover 1 facing the driving power source 3.
  • the light guiding member is a polarizing lens 6, and the polarizing lens 6 includes a light incident surface 62, a reflecting surface 63, and a light emitting surface 65.
  • the light emitted by the LED light source 5 is from the light incident surface 62.
  • the polarizing lens 6 enters the polarizing lens 6 and is reflected by the reflecting surface 63 to the light emitting surface 65 to reach a portion of the diffusion cover 1 facing the driving power source 3.
  • the polarizing lens 6 is provided with a mounting surface 61.
  • the polarizing lens 6 is mounted on the bottom plate 2 through the mounting surface 61.
  • the partial surface of the mounting surface 61 is concavely formed with a circular arc surface.
  • the light incident surface 62 wherein one of the LED light sources 5 is disposed below the concave arc surface.
  • the light exit surface 65 is disposed obliquely with respect to the bottom plate 2.
  • the reflecting surface 63 is an arcuate side surface connecting the mounting surface 61 and the light emitting surface 65.
  • the light exit surface 65 is composed of a plurality of convex surfaces. By arranging the light-emitting surface 65 to be composed of a plurality of convex surfaces, the light reflected by the reflecting surface 63 can be made It is described that the smooth surface 65 is diverged to illuminate the predetermined area more uniformly.
  • the driving power source 3 is mounted at a central position of the bottom plate 2, and the LED light sources 5 are uniformly distributed around the driving power source 3.
  • the lighting fixture has a rated power greater than or equal to 0.1 watts.
  • Example 2 By providing a light guiding part of the LED light source to a portion of the diffusion cover facing the driving power source, it is possible to prevent the portion of the diffusion cover facing the driving power source from being weak, thereby The light of the entire diffuser is relatively uniform.
  • Example 2
  • the lighting fixture of this embodiment will be described in detail below with reference to Figs. 5-8.
  • the lighting fixture of the embodiment includes an LED light source 5, a diffusion cover 1, a bottom plate 2, and a driving power source 3 for supplying power to the LED light source 5.
  • the LED light source 5 and the driving power source 3 are disposed by the diffusion cover 1 and In the cavity surrounded by the bottom plate 2, the LED light source 5 is mounted on a sawtooth-shaped substrate 9, the substrate 9 is mounted on the bottom plate 2, and the driving power source 3 is also mounted on the bottom plate 2.
  • the lighting fixture further includes a light guiding member that guides a part of the light emitted by the LED light source 5 to a portion of the diffusion cover 1 facing the driving power source 3.
  • the light guiding member is a reflector 7, and the reflector 7 is provided to reflect part of the light of the LED light source 5 to a portion of the diffusion cover 1 facing the driving power source 3.
  • the reflector 7 is provided with a through hole 71.
  • the driving power source 3 is disposed in the through hole 71, and the outer side surface of the reflector 7 is a reflecting surface 72 of the reflector 7.
  • the reflecting surface 72 is disposed obliquely with respect to the bottom plate 2.
  • the driving power source 3 is mounted at a central position of the bottom plate 2, and the LED light sources 5 are uniformly distributed around the driving power source 3.
  • the lighting fixture has a rated power greater than or equal to 0.1 watts.
  • the light guiding member of the portion of the driving power source can prevent the light of the portion of the diffusion cover facing the driving power source from being weak, so that the light of the entire diffusion cover is relatively uniform.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种照明灯具，包括LED光源（5）、扩散罩（1）、底板（2）和用于给LED光源（5）供电的驱动电源（3），LED光源（5）和驱动电源（3）设置在由扩散罩（1）和底板（2）围成的空腔内。照明灯具还包括将一部分LED光源（5）发出的光线引导至扩散罩（1）的正对驱动电源（3）的部位的导光部件。通过设置导光部件，可以避免扩散罩（1）的正对驱动电源（3）的部位光线较弱，从而使整个扩散罩（1）的光线更为均匀。

Description

一种照明灯具
技术领域
本发明涉及一种灯具， 尤其涉及一种照明灯具。 技术背景
市场上销售的一种 LED吸顶灯包括扩散罩、 底板、 LED光源和用于给 LED光源供电的驱动电源。 LED光源和驱动电源设置在由扩散罩和底板围 成的空腔内。 驱动电源和 LED光源安装在底板上， 驱动电源设置在底板的 中心位置， LED光源均布在驱动电源的周围。这样， 扩散罩的正对驱动电源 的部位光线较弱， 其他部位光线较强， 导致扩散罩的光线不均勾。 发明概要
本发明所要解决的技术问题是提供一种光线均匀的照明灯具。
为了解决以上技术问题， 本发明的照明灯具包括 LED光源、 扩散罩、 底板和用于给所述 LED光源供电的驱动电源， 所述 LED光源和驱动电源设 置在由所述扩散罩和所述底板围成的空腔内，所述照明灯具还包括将一部分 所述 LED光源发出的光线引导至所述扩散罩的正对所述驱动电源的部位的 导光部件， 所述照明灯具的额定功率大于等于 0.1瓦特。
优选地， 所述导光部件为偏光透镜， 所述偏光透镜包括入光面、 反射面 和出光面； 所述 LED光源发出的光线从所述入光面进入所述偏光透镜， 再 由所述反射面反射到所述出光面后到达所述扩散罩的正对所述驱动电源的 部位。 优选地，所述偏光透镜设有安装面，所述安装面的局部内凹形成圆弧面， 所述圆弧面为所述入光面。
优选地， 所述出光面相对于所述底板倾斜设置。
优选地， 所述反射面为连接所述安装面和所述出光面的弧形侧面。
优选地， 所述出光面由若干凸透面组成。
优选地， 所述导光部件为反射器， 所述反射器设有将所述 LED光源的 部分光线反射到所述扩散罩的正对所述驱动电源的部位的反射面。
优选地， 所述反射器设有通孔， 所述驱动电源设置在所述通孔内， 所述 反射器的外侧面为所述反射器的反射面。
优选地， 所述反射器的反射面相对于所述底板倾斜设置。
优选地， 所述驱动电源安装于所述底板的中心位置， 所述 LED光源均 布在所述驱动电源的周围。
通过设置将一部分所述 LED光源发出的光线引导至所述扩散罩的正对 所述驱动电源的部位的导光部件，可以避免扩散罩的正对所述驱动电源的部 位光线较弱， 从而使整个扩散罩的光线较为均匀。 附图说明
图 1是本发明的照明灯具的实施例 1的示意图；
图 2是图 1中的照明灯具去除扩散罩后的俯视图；
图 3是图 1中的偏光透镜的剖视图；
图 4是图 1中的偏光透镜的一个视角的示意图；
图 5是本发明的照明灯具的实施例 2的示意图； 图 6是图 5中的照明灯具去除扩散罩后的俯视
图 7是图 5中的反射器的剖视图；
图 8是图 5中的反射器的立体图。 发明内容
实施例 1:
下面结合图 1-4对本实施例的照明灯具进行详细描述。 本实施例的照明 灯具包括 LED光源 5、 扩散罩 1、 底板 2和用于给所述 LED光源 5供电的 驱动电源 3，所述 LED光源 5和驱动电源 3设置在由所述扩散罩 1和所述底 板 2围成的空腔内，所述 LED光源 5安装在锯齿形的基板 9上，所述基板 9 安装在所述底板 2上， 所述驱动电源 3也安装在所述底板 2上， 所述照明灯 具还包括将一部分所述 LED光源 5发出的光线引导至所述扩散罩 1的正对 所述驱动电源 3的部位的导光部件。在本实施例中， 所述导光部件为偏光透 镜 6， 所述偏光透镜 6包括入光面 62、 反射面 63和出光面 65; 所述 LED光 源 5发出的光线从所述入光面 62进入所述偏光透镜 6， 再由所述反射面 63 反射到所述出光面 65后到达所述扩散罩 1的正对所述驱动电源 3的部位。 所述偏光透镜 6设有安装面 61， 所述偏光透镜 6通过所述安装面 61安装在 所述底板 2上， 所述安装面 61的局部内凹形成圆弧面， 所述圆弧面为所述 入光面 62， 其中一个 LED光源 5设置在内凹的圆弧面下方。 所述出光面 65 相对于所述底板 2倾斜设置。所述反射面 63为连接所述安装面 61和所述出 光面 65的弧形侧面。 所述出光面 65由若干凸透面组成。通过将所述出光面 65设置成由若干凸透面组成， 可以使由所述反射面 63反射过来的光线在所 述出光面 65发散开来，使光线更加均匀地照射到预定区域。所述驱动电源 3 安装于所述底板 2的中心位置， 所述 LED光源 5均布在所述驱动电源 3的 周围。 所述照明灯具的额定功率大于等于 0.1瓦特。
通过设置将一部分所述 LED光源发出的光线引导至所述扩散罩的正对 所述驱动电源的部位的导光部件，可以避免扩散罩的正对所述驱动电源的部 位光线较弱， 从而使整个扩散罩的光线较为均匀。 实施例 2：
下面结合图 5-8对本实施例的照明灯具进行详细描述。 本实施例的照明 灯具包括 LED光源 5、 扩散罩 1、 底板 2和用于给所述 LED光源 5供电的 驱动电源 3，所述 LED光源 5和驱动电源 3设置在由所述扩散罩 1和所述底 板 2围成的空腔内，所述 LED光源 5安装在锯齿形的基板 9上，所述基板 9 安装在所述底板 2上， 所述驱动电源 3也安装在所述底板 2上， 所述照明灯 具还包括将一部分所述 LED光源 5发出的光线引导至所述扩散罩 1的正对 所述驱动电源 3的部位的导光部件。在本实施例中， 所述导光部件为反射器 7， 所述反射器 7设有将所述 LED光源 5的部分光线反射到所述扩散罩 1的 正对所述驱动电源 3的部位的反射面 72。 所述反射器 7设有通孔 71， 所述 驱动电源 3设置在所述通孔 71 内， 所述反射器 7的外侧面为所述反射器 7 的反射面 72。 所述反射面 72相对于所述底板 2倾斜设置。 所述驱动电源 3 安装于所述底板 2的中心位置， 所述 LED光源 5均布在所述驱动电源 3的 周围。 所述照明灯具的额定功率大于等于 0.1瓦特。
通过设置将一部分所述 LED光源发出的光线引导至所述扩散罩的正对 所述驱动电源的部位的导光部件，可以避免扩散罩的正对所述驱动电源的部 位光线较弱， 从而使整个扩散罩的光线较为均匀。

Claims

权利要求
1、 一种照明灯具， 包括 LED光源、 扩散罩、 底板和用于给所述 LED 光源供电的驱动电源， 所述 LED光源和驱动电源设置在由所述扩散罩和所 述底板围成的空腔内， 所述照明灯具还包括将一部分所述 LED光源发出的 光线引导至所述扩散罩的正对所述驱动电源的部位的导光部件。
2、 根据权利要求 1所述的照明灯具， 其特征在于， 所述导光部件为偏 光透镜， 所述偏光透镜包括入光面、 反射面和出光面； 所述 LED光源发出 的光线从所述入光面进入所述偏光透镜，再由所述反射面反射到所述出光面 后到达所述扩散罩的正对所述驱动电源的部位。
3、 根据权利要求 2所述的照明灯具， 其特征在于， 所述偏光透镜设有 安装面， 所述安装面的局部内凹形成圆弧面， 所述圆弧面为所述入光面。
4、 根据权利要求 3所述的照明灯具， 其特征在于， 所述出光面相对于 所述底板倾斜设置。
5、 根据权利要求 4所述的照明灯具， 其特征在于， 所述反射面为连接 所述安装面和所述出光面的弧形侧面。
6、 根据权利要求 2所述的照明灯具， 其特征在于， 所述出光面由若干 凸透面组成。
7、 根据权利要求 1所述的照明灯具， 其特征在于， 所述导光部件为反 射器， 所述反射器设有将所述 LED光源的部分光线反射到所述扩散罩的正 对所述驱动电源的部位的反射面。
8、 根据权利要求 Ί所述的照明灯具， 其特征在于， 所述反射器设有通 孔， 所述驱动电源设置在所述通孔内， 所述反射器的外侧面为所述反射器的 反射面。
9、 根据权利要求 8所述的照明灯具， 其特征在于， 所述反射器的反射 面相对于所述底板倾斜设置。
10、 根据权利要求 1所述的照明灯具， 其特征在于， 所述驱动电源安装 于所述底板的中心位置， 所述 LED光源均勾分布在所述驱动电源的周围。
PCT/CN2013/000659 2012-12-15 2013-06-04 一种照明灯具 WO2014089893A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210542758.9 2012-12-15
CN201210542758.9A CN103867932A (zh) 2012-12-15 2012-12-15 一种照明灯具

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