Rainproof fanless switching power supply

Abstract

Disclosed is a rainproof fanless switching power supply, which is characterized by comprising a shell 1 as well as a box plate 2, a circuit board 3, a hook 4-1, a hook 4-2, rivets 4-3, a cover plate 5, a pressure block 6, screws 7, a safety rope 8, a occulting bar 9, a rivet 10, screws 14 and a U-shaped strip 15 mounted thereon; the box plate 2 is fixed on the shell 1 by the screws; the cover plate 5 is inserted from a lower guide groove 2-5 of the box plate 2 and fixed on the box plate 2 by the screws 7 through the pressure block 6; the two ends of the safety rope 8 are respectively connectedto the box plate 2 and the cover plate 5; the integrated design of the fanless switching power supply and a junction box enhances heat dissipation and ventilation, and prolongs the overall life; an end cover at the bottom is connected to a cable protection tube to eliminate the safety hazard; a cover plate at the lower part of the shell is of a pull-down extraction structure, and the safety rope8 can prevent the cover plate from falling during installation or overhauling; the cover plate is fixed on the shell by adopting the pressure block, which avoids the situation that screws for fixing are difficult to align with holes and easy to fall; the overall rigidity and heat dissipation are high, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to an outdoor power conversion device. Background technique [0002] At present, in the landscape lighting distribution system, power conversion is an indispensable link. After the power conversion, the mains power is converted from AC to DC and the voltage is reduced, which can greatly reduce system failure points, reduce the failure rate of LED lights, and reduce construction operations. The strength of the system improves the safety of the system; at present, switching power supply is used for power conversion. For high-power switching power supply, due to the high heat generation, there is always a fan. In outdoor applications, the switching power supply is often put into the switching power supply rainproof box; With the improvement of project quality requirements and the extension of the product warranty period, among the components in the switching power supply, the life of the rotating fan is the lowest, so the life of t...

AI Technical Summary

Problems solved by technology

[0002] At present, in the landscape lighting distribution system, power conversion is an indispensable link. After the power conversion, the mains power is converted from AC to DC and the voltage is reduced, which can greatly reduce system failure points, reduce the failure rate of LED lights, and reduce construction operations. The strength of the system improves the safety of the system; at present, switching power supply is used for power conversion. For high-power switching power supply, due to the high heat generation, there is always a fan. In outdoor applications, the switching power supply is often put into the switching power supply rainproof box; With the improvement of project quality requirements and the extension of the product warranty period, among the components in the switching power supply, the life of the rotating fan is the lowest, so the life of the fan determines the life of the entire power supply, and the fan works in the outdoor environment for a long time. Cooperating pairs are more prone to mechanical loss and reduce life expectancy; with the improvement of the technology of electronic devices, the power consumption of devices is reduced, and fanless switching power supplies have emerged. However, the current fanless switching power supplies have structural defects and insufficient rainproof performance. Perfect, the connection with the electrical circuit is not safe enough, so the popularization and application is low; now an innovative rainproof switching power supply can solve the above-mentioned original defects; take advantage of the low power consumption and long life of the fanless switching power supply

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