Linear power driving LED lamp and thunder-proof linear power driving LED lamp

A technology of LED lamps and linear power supplies, applied in the field of LED lighting, can solve problems such as poor lightning resistance, and achieve the effects of improving lightning resistance, eliminating weak links and easy implementation.

Inactive Publication Date: 2014-05-21
SHANGHAI YAMING LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a linear power-driven LED lamp and an anti-lightning linear power-driven LED lamp, which are used to solve the problem of lightning resistance of outdoor products in linear power-driven LED lamps in the prior art. bad question

Method used

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  • Linear power driving LED lamp and thunder-proof linear power driving LED lamp
  • Linear power driving LED lamp and thunder-proof linear power driving LED lamp
  • Linear power driving LED lamp and thunder-proof linear power driving LED lamp

Examples

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Embodiment 1

[0056] Currently, if image 3 The root cause of the poor lightning strike resistance of the LED lamps driven by the linear power supply shown is the special electrical structure of the LED lamps driven by the linear power supply, and the root cause that the LED lamps are easily damaged during the lightning strike: At this time, it will pass through the rectifier bridge stack in each ACLEDs module and the parasitic capacitance (CP1, CP2, ..., CPN) of the ACLEDs module to the lamp radiator, and then flow from the L / N line to the lamp (that is, the safety ground) . The response speed of the rectifier bridge stacks of each module to the transient surge current is fast or slow, resulting in the total surge current not being evenly divided among the ACLEDs modules, and the ACLEDs corresponding to the bridge stack that responds first Most of the inrush current flows through the module. Obviously, the ACLEDs module that flows the largest surge current will be the most vulnerable to ...

Embodiment 2

[0063] This embodiment provides an LED lamp 20 driven by a linear power supply, which can be applied indoors to reduce the probability of lightning strikes. see Figure 5, is shown as an equivalent electrical connection block diagram of an LED lamp driven by a linear power supply. The LED lamp 20 driven by a linear power supply includes an AC input module 21 , a rectifier module 22 , and an LED lighting module 23 driven by a linear power supply. The AC input module 21 includes a live wire 211 , a neutral wire 212 , and a ground wire 213 . The rectifier module 22 includes four diodes 221, the first diode 221 (D1), the second diode 221 (D2), the third diode 221 (D3), and the fourth diode 221 (D4 ). The linear power-driven LED lighting module 23 includes N constant current optical units 231 , and the constant current optical units 231 can also be called constant power optical units. Wherein, N is an integer greater than or equal to 1. In this embodiment, when the LED lamp 20 ...

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Abstract

The invention discloses a thunder-proof power driving LED lamp. The thunder-proof linear power driving LED lamp comprises a thunder prevention module, a rectifying module and a linear power driving light emitting diode illumination module, wherein the thunder prevention module is used for limiting lightning transient surge current which passes through the LED lamp when a lightning stroke is occurred to the LED lamp, the rectifying module is used for rectifying alternating current and outputting pulsatile direct current, the linear power driving light emitting diode illumination module comprises N constant-current optical units which are used for regulating the pulsatile direct current output from the rectifying module into constant current source, responding to the lightning transient surge current and averaging the lightning transient surge current simultaneously. The ACLEDs module in the thunder-proof linear power driving LED lamp only comprises the constant-current optical modules rather than bridge rectifiers; when the lightning stroke is occurred to the lamp in the door or out of door, the response speed of each ACLEDs module to the lightning transient surge current is approximately consistent so that the lightning transient surge current is divided uniformly, and the weak thunder-proof link is eliminated. When the linear power driving LED lamp is used in the door, the thunder prevention module can be omitted so as to save cost.

Description

technical field [0001] The technical field of LED lighting of the present invention relates to an LED lamp, in particular to an LED lamp driven by a linear power supply and an LED lamp driven by an anti-lightning linear power supply. Background technique [0002] The LED lighting system consists of the following related components, namely: light source components (LED modules or particles), drive components (power supply), control components (lighting control devices), structural components (lamps and radiators). [0003] According to the working principle of the power supply, the power supply can be divided into two categories, namely switching power supply and linear power supply. Similarly, LED lighting power supplies are also divided into switching power supplies and linear power supplies. see figure 1 , which is shown as a circuit schematic diagram of an AC LED module driven by a multi-segmented linear power supply in the prior art (abbreviated as ACLEDs module). LED...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 曹箫洪肖祥
Owner SHANGHAI YAMING LIGHTING
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