Tower crane lamp capable of resisting lightning stroke and preventing misconnection

Abstract

The invention relates to a tower crane lamp capable of resisting lightning stroke and preventing misconnection. The tower crane lamp comprises a power supply assembly used for being connected with a power supply and an LED light source module, the power supply assembly comprises a driving module, and the LED light source module is arranged in the output side of the driving module; the power supply assembly further comprises a surge protection module which is arranged on the input side of the driving module. The surge protection module is set to be in a conducting state when the connected power supply is higher than a preset voltage threshold value so as to drain the power supply into the ground and prevent the power supply from flowing into the driving module. When the connected power supply is lower than or equal to a preset voltage threshold value, the power supply is in a high-impedance state, and the power supply is allowed to flow into the driving module. The voltage higher than the preset voltage threshold value can be prevented from flowing into the driving module and the LED light source module, so that the driving module and the LED light source module are effectively protected, and the phenomenon that the driving module or the LED light source module is burnt out due to the fact that 380V voltage is mistakenly connected is avoided.

Description

technical field [0001] The invention relates to a lamp for being installed on a tower crane in a building construction site to provide illumination, in particular to a tower lamp for anti-lightning strike and anti-misconnection. Background technique [0002] Tower crane is a kind of lifting equipment (also known as "tower crane") on the construction site, which can be used to lift construction materials such as steel bars, wooden corrugated, concrete, and steel pipes. [0003] The tower pendant light is a lamp installed on the tower crane to provide lighting. With the development and popularization of LED technology, LED tower chandeliers are currently mainstream products. The rated voltage of LED tower chandeliers is 220V, and 380v power is mainly used on the construction site, and because the non-LED tower chandeliers used before use 380V voltage, many electricians (that is, lamp installers) will naturally think that LED tower chandeliers are also Using 380V, it often oc...

AI Technical Summary

Problems solved by technology

The rated voltage of LED tower chandeliers is 220V, and 380v power is mainly used on the construction site, and because the non-LED tower chandeliers used before use 380V voltage, many electricians (that is, lamp installers) will naturally think that LED tower chandeliers are also Using 380V, it often occurs that the LED tower chandelier is connected to the 380V power supply and the driving power of the lamp is burned out.

However, the damage caused by misconnection of the drive power is no longer within the scope of the warranty, and the manufacturer’s warranty cannot be obtained, resulting in the need for the user to spend extra money on repairs or replacements.

[0004] In order to avoid mis-connection, the inventor will specially paste warning signs on the housing of the LED tower chandelier and on the power cord to warn against connecting 380V voltage Labels, however, have had poor results

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