LED bulb lamp and LED filament thereof

A technology of LED filament and LED chip, which is applied in the field of lighting, can solve the problems of electrode yellowing and achieve good flexibility

Active Publication Date: 2017-09-01
JIAXING SUPER LIGHTING ELECTRIC APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an LED filament, which uses a multi-layer layered structure to make the characteristics of the LED filament easier to adjust and change, and the filament electrode is not easy to fall off from the chip, and also solves the problem of electrode yellowing

Method used

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  • LED bulb lamp and LED filament thereof
  • LED bulb lamp and LED filament thereof
  • LED bulb lamp and LED filament thereof

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Embodiment Construction

[0087] In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, the implementation of the present invention will be described in detail below with specific embodiments in conjunction with the accompanying drawings.

[0088] During the manufacturing process of traditional bulb lamps, in order to prevent the tungsten wire from burning in the air and causing oxidative fracture failure, a horn stem glass structure is designed to be sintered and sealed at the opening of the glass lamp housing, and then penetrated The port of the horn stem is connected to a vacuum pump to replace the air inside the lamp housing with nitrogen to prevent the tungsten wire inside the lamp housing from burning and oxidizing, and finally the port of the horn stem is sintered and sealed. In addition, the water mist scattered in the air inside the lamp housing can also be removed through the pumping of the gas. Further, please refer to Figure 1A...

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Abstract

The invention discloses an LED filament. The LED filament comprises multiple LED chips, at least two electrodes and a light conversion layer, wherein the multiple LED chips are electrically connected with the at least two electrodes, the light conversion layer has a top layer and a base layer, the top layer and the base layer are respectively arranged at at least two sides of the multiple LED chips and the at least two electrodes, and parts of the two electrodes are exposed by the light conversion layer. The LED filament is advantaged in that the light conversion layer has a multi-layer layered structure, layered adjustment on hardness, light transmittance and a refractive index can be realized, so hardness, light transmittance and the refractive index of the LED filament can be adjusted to an optimum state, and the LED filament can be made to satisfy different demands of LED bulb lamps.

Description

[0001] The application of the present invention is a divisional application submitted to the China Patent Office on December 14, 2016, with the application number 201611155896.6, and the title of the invention is "LED filament and its manufacturing method and LED bulb lamp using the filament". technical field [0002] The invention relates to the lighting field, in particular to an LED filament and an LED bulb using the LED filament. Background technique [0003] LED has the advantages of environmental protection, energy saving, high efficiency and long life, so it has been widely valued in recent years and has gradually replaced the status of traditional lighting fixtures. However, the light emitted by LED light sources is directional, unlike traditional lamps that can illuminate a large and wide-angle range. Therefore, applying LEDs to traditional lamps has corresponding challenges depending on the type of lamp. [0004] In recent years, an LED filament that can make LED l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L25/075H01L33/48H01L33/50H01L33/52H01L33/58H01L33/60H01L33/62F21K9/232F21V9/10F21V9/16F21V19/00F21Y115/10F21V9/40
CPCF21V9/30F21V9/40F21V19/001H01L33/48H01L33/501H01L33/502H01L33/58H01L33/62H01L33/64F21K9/232H01L25/0753H01L33/483H01L33/505H01L33/52H01L33/60F21V19/002H01L33/54F21Y2103/10F21Y2115/10H01L2224/48137H01L33/56H01L2933/0091F21Y2115/15F21Y2107/00
Inventor 江涛李丽琴
Owner JIAXING SUPER LIGHTING ELECTRIC APPLIANCE
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