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Self-ballasted flexible LED lamp filament and LED bulb formed thereby

A technology for LED filaments and LED bulbs, which is applied in the direction of optical elements used to change the spectral characteristics of emitted light, electric lamp circuit layout, lighting device components, etc., and can solve problems such as large-scale high-efficiency production, LED chip failure, contact Bad and other problems, to achieve mass production, optimize product structure, good heat dissipation effect

Inactive Publication Date: 2015-04-29
江苏华英光宝科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The LED filament in the prior art requires bonding wires on the substrate during the production process. The production process is relatively complicated, and it is difficult to produce large-scale and high-efficiency production. In addition, the connection between each LED chip through a gold wire is prone to poor contact. Or the phenomenon that the gold wire cannot be welded, resulting in the failure of the LED chip

Method used

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  • Self-ballasted flexible LED lamp filament and LED bulb formed thereby
  • Self-ballasted flexible LED lamp filament and LED bulb formed thereby

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Embodiment Construction

[0017] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] See attached figure 1 As shown, it is a schematic diagram of a self-ballasted flexible LED filament according to the present invention, which includes a flexible substrate 1, on which a connecting line 2 is prepared, electrodes 3 are formed at both ends of the connecting line 2, and the connecting line 2 is formed on the electrode A plurality of pads 4 are formed between the 3, and a flip-chip LED chip 5 is installed between each pair of pads 4. The flexible substrate 1 and the LED chip 5 are covered with sleeves or wrapped with silicone body by injection molding, and the connection lines 2 is provided with a self-ballasting module, which is used to convert the input mains power into a DC...

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Abstract

The invention discloses a self-ballasted flexible LED lamp filament which comprises a flexible substrate (1), wherein a connecting circuit (2) is manufactured on the flexible substrate (1); electrodes (3) are formed at two ends of the connecting circuit (2); multiple bonding pads are formed between the electrodes (3) in the connecting circuit (2); an LED flip chip (4) is arranged between each pair of bonding pads; the outer part of the flexible substrate (1) and the LED chip (4) is sleeved by a sleeve or is coated by colloid silica in an injection molding mode; and a self-ballast module is arranged in the connecting circuit (2) and is used for converting the input electric supply into a direct current constant current power supply needed by the LED flip chip (4).

Description

technical field [0001] The invention relates to the technical field of LEDs. Background technique [0002] The LED filament in the prior art requires bonding wires on the substrate during the production process. The production process is relatively complicated, and it is difficult to produce large-scale and high-efficiency production. In addition, the connection between each LED chip through a gold wire is prone to poor contact. Or the phenomenon that the gold wire cannot be soldered occurs, resulting in the failure of the LED chip. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide a brand new self-ballasted flexible LED filament and the LED light bulb it constitutes, which can greatly increase the convenience of use. [0004] In order to achieve the above purpose, the present invention provides a self-ballasted flexible LED filament, including a flexible substrate, the flexible su...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V23/00F21V23/06F21V19/00H05B37/02F21S9/02F21Y101/02
CPCF21K9/232F21V9/02F21V19/002F21V23/003F21V23/06F21Y2103/10F21Y2115/10H05B47/10
Inventor 周有旺周造轩周红玉
Owner 江苏华英光宝科技有限公司
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