Bulb-shaped lamp

A technology of shaped lamps and light bulbs, applied in the field of bulb shaped lamps, can solve the problems such as the inability to fully suppress the rise of LED temperature, the lack of suitable structure for general products, and the poor heat dissipation efficiency of LEDs, so as to achieve good circulation, ensure cooling efficiency, and improve The effect of cooling efficiency

Inactive Publication Date: 2010-02-03
TOSHIBA LIGHTING & TECH CORP
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Problems solved by technology

[0005] However, in a bulb-shaped lamp with a shade, since the LED is covered by the shade, there is a problem that the heat dissipation efficiency of the LED is poor, and the temperature rise of the LED cannot be sufficiently suppressed even if a metal radiator is used.
[0006] Moreover, assuming that there is no LED lamp with a lampshade, even in a bulb-shaped lamp with a lampshade, a heat sink is provided on the heat sink, and a fan is arranged inside the heat sink, so as to prevent heat transfer from the LED to the heat sink. The heat is forced to dissipate heat, and because the LE

Method used

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Embodiment Construction

[0088] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and effects of the bulb-shaped lamp proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. Details are as follows.

[0089] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of the specific implementation mode, a more in-depth and specific understanding of the technical means and effects adopted by the present invention to achieve the intended purpose can be obtained. However, the accompanying drawings are only for reference and description, and are not used to explain the present invention. be restricted.

[0...

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Abstract

The present invention relates to a bulb-shaped lamp. A substrate is attached to one edge side of a radiator and a globe is attached covering the substrate. Heat-radiating fins are provided on the other edge side of the radiator and an air-cooling unit is rotatably provided inside the heat-radiating fins which enables to freely rotate. A case storing a circuit part A is attached to the other edge side of the radiator and a cap is provided to the case. By the wind blast from the air-cooling unit, the heat-radiating fins are caused to be a part of the ventilation path to allow for ventilation ofthe inside of the radiator.

Description

technical field [0001] The present invention relates to a bulb-shaped lamp, in particular to a bulb-shaped lamp which can be used instead of a general lighting bulb. Background technique [0002] Conventionally, in a bulb-shaped lamp using a light emitting diode (LED) as a light-emitting element, a substrate encapsulating the LED is mounted on one end of a radiator, and one end of the radiator covers the substrate to A globe is attached, and a case accommodating a lighting circuit for lighting the LED is attached to the other end of the radiator, and a socket is attached to the other end of the case. [0003] In such a bulb-shaped lamp, the temperature of the LED increases due to heat generated from the LED, which reduces the optical output (optical output) of the LED and shortens its lifetime. Therefore, it is required to suppress the temperature increase of the LED. For this reason, a method of forming a radiator with a metal material excellent in heat dissipation, etc. a...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V3/02F21V23/00F21V29/00F21V29/02F21Y101/02
Inventor 别田惣彦诹访巧河野仁志斉藤明子别所诚柴原雄右玉井浩贵柴野信雄清水一清水恵一
Owner TOSHIBA LIGHTING & TECH CORP
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