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Lamp tube and protection circuit and protection device applied to lamp tube

A technology for protecting circuits and filament circuits, which is applied in the fields of protection devices and protection circuits, and can solve problems such as insufficient protection measures for lamps and lanterns.

Active Publication Date: 2020-02-11
SHENZHEN LONGHORN INTELLIGENT INSTR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a light tube and a protection circuit and protection device applied to the light tube, aiming to solve the technical problem of insufficient protection measures for the existing light tube

Method used

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  • Lamp tube and protection circuit and protection device applied to lamp tube
  • Lamp tube and protection circuit and protection device applied to lamp tube
  • Lamp tube and protection circuit and protection device applied to lamp tube

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Embodiment Construction

[0031] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0032] During the design and manufacture of lamp tubes, the use safety of the product is usually fully considered, and various protection measures are adopted, such as: the drive power supply adopts an isolated power supply; the built-in drive power supply is wrapped with insulating materials such as Mylar sheet and insulating tape for double insulation ; The lamp body i...

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Abstract

The invention belongs to the technical field of lamps, in particular to a lamp tube and a protection circuit and protection device applied to the lamp tube. An analog filament circuit is arranged at each of two poles of the lamp tube for receiving an alternating-current signal provided by an alternating-current power supply. The protection circuit is preheated; rectification processing is carriedout on the alternating current signal through a rectification circuit; a corresponding direct-current voltage signal is output; then, a control circuit is used for controlling the on and off of the direct-current voltage signal based on the access state of the protection circuit and an external circuit; and finally, abrupt change of the voltage of a light source module is avoided through an energystorage circuit; it is ensured that no electric leakage phenomenon is generated in the power supply access process of the lamp tube, and the problem that large potential safety hazards exist in hot-line operation in the lamp tube replacement process is solved.

Description

technical field [0001] The application belongs to the technical field of lamps, and in particular relates to a lamp tube, a protection circuit and a protection device applied to the lamp tube. Background technique [0002] With the continuous advancement of technology and productivity, the application of LED light sources in lighting products is increasing day by day. As an emerging light source, LED lights have played a very important role and contribution in energy saving, emission reduction, and environmental protection. In order to avoid safety accidents during the use or installation of LED lights, various protective measures are usually adopted, such as : The driving power adopts an isolated power supply; the built-in driving power is wrapped with insulating materials such as Mylar sheet and insulating tape for double insulation; the lamp body is made of PC material, nanotubes, glass tubes, etc.; the lamp head is made of PC insulating materials, etc. [0003] However,...

Claims

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Application Information

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IPC IPC(8): H05B45/50H05B45/30
CPCY02B20/30H05B45/50H05B45/30
Inventor 黄绍丰罗杨洋杨林杨海涛
Owner SHENZHEN LONGHORN INTELLIGENT INSTR TECH CO LTD
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