360-degree light-emitting LED bulb lamp
A LED bulb lamp, spherical technology, applied in the direction of light source, electric light source, light source fixing, etc., can solve the problems of uneven distribution of luminous intensity of bulb lamps, inability to install LED boards, increased light absorption, etc., to avoid excessive heat Concentrate, improve the efficiency of light extraction, and improve the effect of life
Active Publication Date: 2013-12-11
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology
U.S. Patent US2007 / 0159828A1 solves the replacement problem of the LED board, which can avoid waste and facilitate partial replacement, but the absorption of light by the edge of the slot 221 and the cooling fins will greatly increase, and for the convenience of plugging and unplugging, the triangular prism Most of the area of the heat dissipation column cannot be equipped with LED boards, resulting in uneven distribution of luminous intensity at different angles of the bulb lamp, which is not a true 360-degree luminous
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[0020] see image 3 As shown, a 360-degree luminous LED bulb lamp provided by the present invention includes:
[0021] A spherical shell 310 and a base 320 connected thereto;
[0022] A heat conduction pillar 330, which is arranged on the base 320; the heat conduction pillar 330 can be a hollow cylinder, and the outer wall of the heat conduction pillar 330 can be provided with a plurality of grooves for heat dissipation, and the heat conduction pillar 330 is covered with heat dissipation film material. Lead through holes may be provided on the sidewalls of the heat conducting pillars 330 at positions aligned with the transparent ceramic substrate 340 .
[0023] A transparent ceramic substrate 340, which is arranged on the heat conduction pillar 330, and a plurality of LED dies 301 are respectively arranged on the transparent ceramic substrate 340, and the heat conduction pillar 330 and the transparent ceramic substrate 340 are vertically arranged; the transparent ceramic sub...
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The invention provides a 360-degree light-emitting LED bulb lamp. The 360-degree light-emitting LED bulb lamp comprises a spherical outer shell, a base, a heat conduction support, a plurality of transparent ceramic substrates and a driving circuit. The base is connected with the spherical outer shell. The heat conduction support is arranged on the base. The transparent ceramic substrates are arranged on the heat conduction support and are respectively provided with a plurality of LED tube cores, and the heat conduction support is perpendicular to the transparent ceramic substrates. The driving circuit is located inside the base. The LED tube cores are electrically connected with the driving circuit. According to the 360-degree light-emitting LED bulb lamp, the light-emitting efficiency of the whole lamp can be improved. The 360-degree light-emitting LED bulb lamp has the advantages of being low in cost and long in service life.
Description
technical field [0001] The invention relates to a light emitting diode structure. More specifically, the present invention relates to a 360-degree light-emitting LED bulb lamp that can easily replace the light source. Background technique [0002] Light-emitting diodes (LEDs) have the advantages of long life, energy saving, environmental protection, and rich colors. Therefore, with the development of technologies such as epitaxy, chips, and packaging, and the further improvement of luminous efficiency, LEDs have been gradually used in lighting, display, medical treatment, etc. each field. At present, most LEDs only emit light within a certain solid angle range. Therefore, in the chip manufacturing process, a reflector is formed on the opposite side of the LED chip light-emitting surface, and the LED chip is mounted on a light-proof surface that is coated with a reflective layer. on the base. Although the reflectivity of the current reflector can be more than 90%, consider...
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IPC IPC(8): F21S2/00F21V17/10F21V19/00F21V29/00F21V23/00F21Y101/02F21V29/503
Inventor 郭金霞谢海忠卢鹏志田婷赵勇兵詹腾伊晓燕王军喜李晋闽
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI