CN204518161U - 一种可改变色温的led灯 - Google Patents

一种可改变色温的led灯 Download PDF

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Publication number
CN204518161U
CN204518161U CN201520208121.5U CN201520208121U CN204518161U CN 204518161 U CN204518161 U CN 204518161U CN 201520208121 U CN201520208121 U CN 201520208121U CN 204518161 U CN204518161 U CN 204518161U
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China
Prior art keywords
illuminating part
led illuminating
colour temperature
led
output end
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Expired - Fee Related
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CN201520208121.5U
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English (en)
Inventor
盛林君
马特·凯瑞帕特
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Zhejiang Fengshang Building Materials Co Ltd
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Zhejiang Fengshang Building Materials Co Ltd
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    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

本实用新型公开了一种可改变色温的LED灯，包括电源适配器、冷色调LED发光件、暖色调LED发光件和开关，电源适配器包括整流降压电路、单片机芯片和直流输出端，冷色调LED发光件和暖色调LED发光件作极性相反并联后组成照明回路，照明回路的两端分别连接在直流输出端上。本实用新型在同一灯具内同时安装了两种不同色温的发光源，可以在不更换灯具的情况下实现对色温的选择，结构简单，操作方便。

Description

一种可改变色温的LED灯
技术领域
本实用新型涉及照明技术领域，具体地说是一种可改变色温的LED灯。
背景技术
光源的色温即用以指称其光色相对白的程度，以量化光源的光色表现。红辐射相对要多些时，通常称为“暖色调”；蓝辐射的比例相对多时通常称为“冷色调”。在白炽灯时代，人们对照明灯具的色温没有选择的余地，只能接受与适应。现在进入了LED照明时代，人们就可以根据用途、环境等因素有目的、有需要地选择色温。但在现有技术和产品条件下，要更换色温，就必须通过更换LED灯具来实现，比较麻烦。
发明内容
本实用新型所要解决的技术问题在于提出一种不需更换灯具就可方便地进行色温选择的可改变色温的LED灯。
为解决上述技术问题，本实用新型一种可改变色温的LED灯包括电源适配器、冷色调LED发光件、暖色调LED发光件和开关，所述电源适配器包括整流降压电路、单片机芯片和直流输出端，所述冷色调LED发光件和暖色调LED发光件作极性相反并联后组成照明回路，所述照明回路的两端分别连接在所述直流输出端上。
本实用新型由于采用了上述技术方案，它在同一灯具内同时安装了两种不同色温的发光源，使用过程中，整流降压电路将交流市电转换为直流电源，并通过直流输出端为照明回路供电。首次开灯时，打开开关，其中一种色温的LED发光件导通发光。如果需要另一种色温，则可在3秒钟内关闭开关并重新打开，此时，在单片机芯片的控制下，直流输出改变极性，另一种色温的LED发光件导通发光。灯具使用完毕关闭后，单片机芯片将最后一次使用的色温记忆保持，下次开灯时不需再设定。因此，利用本实用新型LED灯可以在不更换灯具的情况下实现对色温的选择，结构简单，操作方便。
附图说明
图1本实用新型LED灯的电路原理图；
图2是本实用新型LED灯的单片机芯片的控制原理逻辑框图。
具体实施方式
如图1所示，本实用新型可改变色温的LED灯包括电源适配器1、冷色调LED发光件L1、暖色调LED发光件L2和开关K，冷色调LED发光件L1和暖色调LED发光件L2作极性相反并联后组成照明回路。电源适配器1包括整流降压电路Z、单片机芯片D和直流输出端ZL，整流降压电路Z为已有常用技术，此处不再赘述。照明回路的两端分别连接在直流输出端ZL上。整流降压电路Z将交流电源转换为直流电源，并通过直流输出端ZL为照明回路供电。
请同时结合图2所示，整流降压电路Z将交流电源转换为直流电源后的极性由单片机芯片D控制，结合开关K的操作，使直流输出端ZL的极性发生变化，从而使需要色温的相应LED发光件导通发光。当然，色温选择时开关关闭的时间间隔不受图中3秒所限，可以根据实际需要进行调整。
本实用新型结构中，LED发光件既可以是单个的发光元器件，也可以是由多个发光元器件串联而成的发光组件。同时，照明回路也可以由三条或更多的发光支路并联组成。这些都是上述具体实施的等同替换。

Claims (1)

1.一种可改变色温的LED灯，包括电源适配器和开关，其特征在于，它还包括冷色调LED发光件和暖色调LED发光件，所述电源适配器包括整流降压电路、单片机芯片和直流输出端，所述冷色调LED发光件和暖色调LED发光件作极性相反并联后组成照明回路，所述照明回路的两端分别连接在所述直流输出端上。
CN201520208121.5U 2015-04-09 2015-04-09 一种可改变色温的led灯 Expired - Fee Related CN204518161U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4170227A4 (en) * 2020-07-13 2023-11-29 Foshan Electrical and Lighting Co., Ltd LED FILAMENT LAMP WITH VARIABLE COLOR TEMPERATURE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4170227A4 (en) * 2020-07-13 2023-11-29 Foshan Electrical and Lighting Co., Ltd LED FILAMENT LAMP WITH VARIABLE COLOR TEMPERATURE

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