CN111486353B - 一种反射式led灯具及应用该灯具的太阳能路灯 - Google Patents

一种反射式led灯具及应用该灯具的太阳能路灯 Download PDF

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CN111486353B
CN111486353B CN202010336629.9A CN202010336629A CN111486353B CN 111486353 B CN111486353 B CN 111486353B CN 202010336629 A CN202010336629 A CN 202010336629A CN 111486353 B CN111486353 B CN 111486353B
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expansion part
convex lens
lamp
led lamp
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CN111486353A (zh
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张爱文
赵丽莉
丁延永
胡生保
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Yangde Electric Group Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
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    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/68—Details of reflectors forming part of the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • 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
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
    • F21S9/035—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light the solar unit being integrated within the support for the lighting unit, e.g. within or on a pole
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • 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
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    • 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
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting

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Abstract

本发明公开了一种反射式LED灯具及应用该灯具的太阳能路灯，涉及LED灯具领域，反射式LED灯具包括灯体，灯体由上至下依次包括一次扩张部与二次扩张部，一次扩张部与二次扩张部的内壁上均涂覆有反光涂层，一次扩张部与二次扩张部的连接处设有焦距为f1的凸透镜Ⅰ；一次扩张部的内侧壁上沿周向设有呈圈状布置的若干LED灯珠Ⅰ，LED灯珠Ⅰ与凸透镜Ⅰ之间的距离为h2；二次扩张部的内侧壁上沿周向设有呈圈状布置的若干LED灯珠Ⅱ；二次扩张部的内底面上罩盖有灯罩，灯罩包括主凸透镜Ⅱ，主凸透镜Ⅱ外合围有若干副凸透镜Ⅱ，以构成类碗状结构。本发明的灯具配光输出比高、光能利用率高、照明适应性强以及光特性稳定均匀，适合道路路灯照明领域。

Description

一种反射式LED灯具及应用该灯具的太阳能路灯
技术领域
本发明涉及LED灯具领域，尤其涉及一种反射式LED灯具及应用该灯具的太阳能路灯。
背景技术
LED作为一种新型的固体光源，同传统光源相比具有很多优势，如节能、环保、易于调节以及寿命长等优点，因此非常适合作为各种照明领域的光源，比如道路照明光源。
由于LED光源发出的光近似朗伯型，即光强呈余弦分布，直接用于照明，会在路面上形成一个不均匀的圆斑，中心处很亮，而在径向衰减很快。这就需要设计相应的光学系统来重新配光。目前出现的LED路灯，往往都是采用LED光源加透镜的方式来达到路面上产生均匀矩形斑的效果，但是这种方案会由于光的折射而损失较大的光能，不利于光能利用。
发明内容
本发明的目的在于克服上述技术的不足，提供一种光分布均匀、光能利用率高的反射式LED灯具及应用该灯具的太阳能路灯。
为实现上述发明目的，本发明采用的技术方案为：一种反射式LED灯具，包括灯体，其特征在于，所述灯体由上至下依次包括一次扩张部与二次扩张部，一次扩张部与二次扩张部均为由上至下的渐扩状结构，一次扩张部与二次扩张部的内壁上均涂覆有反光涂层，一次扩张部与二次扩张部的连接处设有焦距为f1的凸透镜Ⅰ；所述一次扩张部的内侧壁与内顶面之间夹角为a1，一次扩张部的内侧壁上沿周向设有呈圈状布置的若干LED灯珠Ⅰ，且LED灯珠Ⅰ与一次扩张部的内顶面之间的距离为h1，LED灯珠Ⅰ与凸透镜Ⅰ之间的距离为h2；所述二次扩张部的内侧壁与凸透镜Ⅰ之间夹角为a2，二次扩张部的内侧壁上沿周向设有呈圈状布置的若干LED灯珠Ⅱ，且LED灯珠Ⅱ与凸透镜Ⅰ之间的距离为h4，LED灯珠Ⅱ与二次扩张部内底面之间的距离为h5；所述二次扩张部的内底面上罩盖有灯罩，所述灯罩包括主凸透镜Ⅱ，主凸透镜Ⅱ外合围有若干副凸透镜Ⅱ，以构成类碗状结构，所述主凸透镜Ⅱ与副凸透镜Ⅱ之间的夹角为a3，主、副凸透镜Ⅱ的焦距均为f2；其中，上述参数满足以下公式：h1＝h2·cos(180°-a1)，h4＝h5·tan(180°-a2)，a2＝a3，h3＞h2＝f1，h3-h4＝f3。
进一步地，所述凸透镜Ⅰ、主凸透镜Ⅱ和副凸透镜Ⅱ均为单凸透镜。
进一步地，所述主凸透镜Ⅱ为正六边形结构，副凸透镜Ⅱ为等腰梯形结构，各副凸透镜Ⅱ的底边与主凸透镜Ⅱ的各侧边等长并一一对应拼接，相邻两副凸透镜Ⅱ的侧边相互拼接。
进一步地，所述副凸透镜Ⅱ的面积为主凸透镜Ⅱ的面积的1/2。
进一步地，a1为120°，a2与a3均为135°，f1为10cm，f2为15cm，h4为5cm。
一种应用上述灯具的太阳能路灯，包括灯柱以及固定灯柱的底座，其特征在于，所述灯柱顶端安装有用于供能的太阳能电池板，灯柱顶部一侧向外延伸有灯杆，灯杆下侧安装有LED灯具。
进一步地，所述灯柱与灯杆为一体成型结构。
进一步地，所述灯杆由灯柱顶端向外呈倾斜向上的流线形结构，具有一定程度的导雨作用，防止雨水沉积。
进一步地，所述太阳能电池板为倾斜状布置，受光更好。
本发明的有益效果为：本发明采用双重聚光，通过彼此间的反射增强光照，将二次扩张部内聚合的强光通过由七凸透镜组成的灯罩发出，本发明的灯具配光输出比高、光能利用率高、照明适应性强以及光特性稳定均匀，适合道路路灯照明领域。
附图说明
图1为本发明的LED灯具的结构示意图。
图2为图1的A-A剖视图。
图3为图1的B-B剖视图。
图4为本发明的太阳能路灯的结构示意图。
图中：灯体1、一次扩张部1.1、二次扩张部1.2、反光涂层2、凸透镜Ⅰ3、LED灯珠Ⅰ4、LED灯珠Ⅱ5、灯罩6、主凸透镜Ⅱ6.1、副凸透镜Ⅱ6.2、灯柱7、底座8、太阳能电池板9、灯杆10。
具体实施方式
下面将结合附图对本发明实施例中的技术方案进行清楚、完整地描述。
实施例1
如图1-4所示，一种反射式LED灯具，包括灯体1，灯体1由上至下依次包括一次扩张部1.1与二次扩张部1.2，一次扩张部1.1与二次扩张部1.2均为由上至下的渐扩状结构，一次扩张部1.1与二次扩张部1.2的内壁上均涂覆有反光涂层2，一次扩张部1.1与二次扩张部1.2的连接处设有焦距为f1的凸透镜Ⅰ3；一次扩张部1.1的内侧壁与内顶面之间夹角为a1，一次扩张部1.1的内侧壁上沿周向设有呈圈状布置的若干LED灯珠Ⅰ4，且LED灯珠Ⅰ4与一次扩张部1.1的内顶面之间的距离为h1，LED灯珠Ⅰ4与凸透镜Ⅰ3之间的距离为h2；二次扩张部1.2的内侧壁与凸透镜Ⅰ3之间夹角为a2，二次扩张部1.2的内侧壁上沿周向设有呈圈状布置的若干LED灯珠Ⅱ5，且LED灯珠Ⅱ5与凸透镜Ⅰ3之间的距离为h4，LED灯珠Ⅱ5与二次扩张部1.2内底面之间的距离为h5；二次扩张部1.2的内底面上罩盖有灯罩6，灯罩6包括主凸透镜Ⅱ6.1，主凸透镜Ⅱ6.1外合围有若干副凸透镜Ⅱ6.2，以构成类碗状结构，主凸透镜Ⅱ6.1与副凸透镜Ⅱ6.2之间的夹角为a3，主、副凸透镜Ⅱ6.2的焦距均为f2；其中，上述参数满足以下公式：h1＝h2·cos(180°-a1)，h4＝h5·tan(180°-a2)，a2＝a3，h3＞h2＝f1，h3-h4＝f3。
其中，凸透镜Ⅰ3、主凸透镜Ⅱ6.1和副凸透镜Ⅱ6.2均为单凸透镜；主凸透镜Ⅱ6.1为正六边形结构，副凸透镜Ⅱ6.2为等腰梯形结构，各副凸透镜Ⅱ6.2的底边与主凸透镜Ⅱ6.1的各侧边等长并一一对应拼接，相邻两副凸透镜Ⅱ6.2的侧边相互拼接；副凸透镜Ⅱ6.2的面积为主凸透镜Ⅱ6.1的面积的1/2。
一种应用上述灯具的太阳能路灯，包括灯柱7以及固定灯柱7的底座8，灯柱7顶端安装有用于供能的太阳能电池板9，太阳能电池板9为倾斜状布置，受光更好，灯柱7顶部一侧向外延伸有灯杆10，灯柱7与灯杆10为一体成型结构，灯杆10由灯柱7顶端向外呈倾斜向上的流线形结构，具有一定程度的导雨作用，防止雨水沉积，灯杆10下侧安装有LED灯具。
实施例2
参阅实施例1，其余特征不变，a1选为120°，a2与a3均选为135°，即公式为：h1＝1/2·h2，h4＝h5，h3＞h2＝f1，h3-h4＝f3。
实施例3
参阅实施例1和2，其余特征不变，凸透镜Ⅰ选择焦距为10cm的凸透镜，即f1为10cm，主凸透镜Ⅱ和副凸透镜Ⅱ选择焦距为15cm的凸透镜，即f2为15cm。根据公式可知：h2＝10cm，h1＝5cm，h3＞15cm。
实施例4
参阅实施例1、2和3，其余特征不变，h4选为5cm。根据公式可知：h5＝5cm，h3＝20cm。所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。

Claims (9)

1.一种反射式LED灯具，包括灯体，其特征在于，所述灯体由上至下依次包括一次扩张部与二次扩张部，一次扩张部与二次扩张部均为由上至下的渐扩状结构，一次扩张部与二次扩张部的内壁上均涂覆有反光涂层，一次扩张部与二次扩张部的连接处设有焦距为f1的凸透镜Ⅰ；所述一次扩张部的内侧壁与内顶面之间夹角为a1，一次扩张部的内侧壁上沿周向设有呈圈状布置的若干LED灯珠Ⅰ，且LED灯珠Ⅰ与一次扩张部的内顶面之间的距离为h1，LED灯珠Ⅰ与凸透镜Ⅰ之间的距离为h2；所述二次扩张部的内侧壁与凸透镜Ⅰ之间夹角为a2，二次扩张部的内侧壁上沿周向设有呈圈状布置的若干LED灯珠Ⅱ，且LED灯珠Ⅱ与凸透镜Ⅰ之间的距离为h4，LED灯珠Ⅱ与二次扩张部内底面之间的距离为h5；所述二次扩张部的内底面上罩盖有灯罩，所述灯罩包括主凸透镜Ⅱ，主凸透镜Ⅱ外合围有若干副凸透镜Ⅱ，以构成类碗状结构，所述主凸透镜Ⅱ与副凸透镜Ⅱ之间的夹角为a3，主、副凸透镜Ⅱ的焦距均为f2；其中，参数满足以下公式：h1＝h2·cos(180°-a1)，h4＝h5·tan(180°-a2)，a2＝a3，h3＞h2＝f1，h3-h4＝f3。
2.根据权利要求1所述的一种反射式LED灯具，其特征在于，所述凸透镜Ⅰ、主凸透镜Ⅱ和副凸透镜Ⅱ均为单凸透镜。
3.根据权利要求1所述的一种反射式LED灯具，其特征在于，所述主凸透镜Ⅱ为正六边形结构，副凸透镜Ⅱ为等腰梯形结构，各副凸透镜Ⅱ的底边与主凸透镜Ⅱ的各侧边等长并一一对应拼接，相邻两副凸透镜Ⅱ的侧边相互拼接。
4.根据权利要求1所述的一种反射式LED灯具，其特征在于，所述副凸透镜Ⅱ的面积为主凸透镜Ⅱ的面积的1/2。
5.根据权利要求1所述的一种反射式LED灯具，其特征在于，a1为120°，a2与a3均为135°，f1为10cm，f2为15cm，h4为5cm。
6.一种应用权利要求1-5任一所述灯具的太阳能路灯，包括灯柱以及固定灯柱的底座，其特征在于，所述灯柱顶端安装有用于供能的太阳能电池板，灯柱顶部一侧向外延伸有灯杆，灯杆下侧安装有LED灯具。
7.根据权利要求6所述的太阳能路灯 ，其特征在于，所述灯柱与灯杆为一体成型结构。
8.根据权利要求6所述的太阳能路灯 ，其特征在于，所述灯杆由灯柱顶端向外呈倾斜向上的流线形结构。
9.根据权利要求6所述的太阳能路灯 ，其特征在于，所述太阳能电池板为倾斜状布置。
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