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    • 52. 发明申请
    • BULB-SHAPED LAMP AND LIGHTING DEVICE
    • BULB型灯和照明设备
    • US20110068687A1
    • 2011-03-24
    • US12994741
    • 2010-02-03
    • Kenzi TakahasiYasushige TomiyoshiTakaari UemotoHideo NagaiMamoru TakedaYoshio Manabe
    • Kenzi TakahasiYasushige TomiyoshiTakaari UemotoHideo NagaiMamoru TakedaYoshio Manabe
    • H01J13/46
    • F21V23/009F21K9/23F21K9/233F21S8/026F21V3/00F21V23/002F21V29/15F21V29/83F21V29/89F21Y2115/10
    • [Problem to be Solved] To provide a bulb-type lamp that can achieve improvement in the heat dissipation properties and size/weight reduction simultaneously, and that can lighten thermal load on a lighting circuit.[Solution] A bulb-type lamp 1 is composed of: an LED module 3 including LEDs; a cylindrically-shaped case 7, to one end of which a base member 15 is attached and which allows dissipation of heat therefrom, the heat being generated by the LEDs emitting light; a mount member 5, on which the LED module 3 is mounted, which closes the other end of the case 7, and allows conduction of the heat to the case 7; a lighting circuit 11 that, upon receiving power via the base member 15, causes the LEDs to emit light; and a circuit holder 13 positioned inside the case 7, with the lighting circuit 11 disposed inside the circuit holder 13. The air space exists between the circuit holder 13 and the case7, and between the circuit holder 13 and the mount member 5. Hence, the lighting circuit 11 is isolated from the air space due to the presence of the circuit holder 13. In the bulb-type lamp 1, a fraction S1/S2 satisfies a relationship 0.5≦S1/S2, where S1 denotes an area of a portion of the mount member 5 that is in contact with the case 7, and S2 denotes an area of a portion of the mount member 5 that is in contact with a substrate 17 of the LED module 3.
    • [待解决的问题]提供一种能够同时实现散热特性和尺寸/重量减轻的灯泡型灯,并且可以减轻照明电路上的热负荷。 [解决方案]灯泡型灯1包括:包括LED的LED模块3; 圆柱形壳体7,其一端安装有基座构件15,并且允许散热,由发光的LED产生的热量; 安装有LED模块3的安装构件5,其封闭壳体7的另一端,并且允许热量传导到壳体7; 照明电路11,其经由基部构件15接收电力使得LED发光; 以及位于壳体7内部的电路保持器13,其中照明电路11设置在电路保持器13的内部。电路保持器13和壳体7之间以及电路保持器13和安装构件5之间存在空气空间。因此, 照明电路11由于电路保持器13的存在而与空气空间隔离。在灯泡型灯1中,分数S1 / S2满足关系0.5≦̸ S1 / S2,其中S1表示 与壳体7接触的安装部件5的部分,S2表示与LED模块3的基板17接触的安装部件5的一部分的面积。