Transient overvoltage protection device of LED street lamp driving power supply

A technology for transient overvoltage and LED street lamps, which is applied to emergency protection circuit devices, emergency protection circuit devices, and circuit devices for limiting overcurrent/overvoltage, and can solve the problem of reduced tolerance and inability to guarantee the life of LED street lamps , limited space, etc.

CN112688290APending Publication Date: 2021-04-20上海闪替电子科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-04-20

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Abstract

The invention discloses a transient overvoltage protection device of an LED street lamp driving power supply. The device is connected in series between an L line and an N line and between the N line and a PE line, and comprises a shell, a bottom cover, a fault indication mechanism, a ceramic gas discharge tube, a PCB, an onboard surge protection module and a light guide cap. The shell is connected with the bottom cover, and the light guide cap is installed on the shell, the onboard surge protection module is installed between the shell and the bottom cover, the PCB is installed between the shell and the bottom cover, the PCB is connected with the onboard surge protection module, the ceramic gas discharge tube is connected with the onboard surge protection module, the fault indication mechanism is connected with the PCB, and the fault indication mechanism is connected with the onboard surge protection module. By the adoption of the technical scheme, through the protection mode that the onboard surge protection module and the ceramic gas discharge tube are combined, the device is free of leakage current and follow current, and the service life is effectively prolonged.
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Description

technical field

[0001] The invention relates to the technical field of lightning protection for LED street lamps, in particular to a transient overvoltage protection device for driving power supplies of LED street lamps. Background technique

[0002] As street lamps gradually change from traditional incandescent lamps to more economical and more efficient LED lamps, the ability to withstand transient overvoltages is greatly reduced, which also leads to the inability to guarantee the life of LED street lamps. When the existing transient overvoltage protection products are matched with the LED street lamp driver for protection, since the installation area is concentrated at the lamp head, the space is limited, and an additional decoupling device is required to accurately protect the LED street lamp driver. In addition, the existing transient overvoltage protection products are protected by conventional parallel installation. After the transient overvoltage protection products ...

Examples

Embodiment Construction

[0014] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0015] Such as figure 1 and figure 2 As shown, the present invention is a transient overvoltage protection device for LED street lamp driving power, which is connected in series between L line and N line, N line and PE line, and includes a housing 1, a bottom cover 2, a fault indicating mechanism, a ceramic gas The discharge tube 3, the PCB board 4, the onboard surge protection module 5 and the light guide cap 6, the shell 1 is connected to the bottom cover 2, the light guide cap 6 is installed on the shell 1, and the onboard surge protection module 5 is installed on the shell 1 Between the bottom cover 2 and the bottom cover 2, the PCB board 4 is instal...