CN205305169U - LED street lamp driving power supply - Google Patents

Abstract

The utility model discloses a LED street lamp driving power supply, including double -deck PCB board, the theory of operation be the alternating current power supply that provides of commercial power get into on the double -deck PCB board interchange interface AC -IN and through fuse F1, common mode inductance LF2, common mode inductance LF1, surging ware RM1, differential mode capacitor CX1, differential mode choke L1, DB1 is put in order to the bridge, electric capacity C1, electric capacity C11, electric capacity C7, electric capacity C6, intelligent control board CN1, electric capacity C4, MOS manages Q1, transformer TX1, diode D2, diode D4, electric capacity C5, electric capacity C10, intelligent control board CN2, ann's rule electric capacity CY3, common mode inductance LF3 handles the back, from direct current output mouth DC -OUT output DC power supply, the screw hole still has on the double -deck PCB board, a mesh for installing the electric charge that the screw gathered double -deck PCB board is derived and is reached ground connection. The utility model discloses a setting has the screw hole structure for galvanic element structure and abundant ground connection with ac inversion, provides stable high efficiency, and the high LED drive power supply of security is fit for being applied to the LED street lamp use of needs long term steady illumination.

Description

A kind of LED street lamp drives power supply

Technical field

This utility model relates to LED drive power technical field, and specifically, a kind of LED street lamp drives power supply.

Background technology

At present, global energy growing tension, various countries propose " energy-conservation " and the concept of " environmental protection " one after another. LED (lightemittingdiode, light emitting diode) has that volume is little, long service life, voltage are low, high brightness is low in calories and the advantage such as energy-conserving and environment-protective, and various countries widely popularize, and the parent being increasingly subject to user looks at.

Roadway illumination is the important component part of city illumination, traditional street lamp frequently with, 360 degree of luminescences of high-pressure mercury lamp, the shortcoming that light loss is big causes the huge waste of the energy. Currently, global environment is going from bad to worse, and each state is all at development clean energy resource. And along with the rapid growth of national economy, China's energy supply and demand contradiction is outstanding day by day, supply of electric power comes into existence the situation of critical shortage, and energy-conservation is institute's urgent problem. Therefore, development of new is efficient, energy-conservation, life-span length, color rendering index high, the energy-conservation tool of city illumination is of great significance by the LED street lamp of environmental protection.

LED street lamp and conventional street lamp the difference is that, LED light source adopts low-voltage DC supply, the efficient white light synthesized by GaN base power-type blue-ray LED with yellow, have efficiently, the particular advantages such as safety, energy-saving and environmental protection, life-span length, fast response time, color rendering index be high, can be widely applied to road. Outer housing can be used and make, and high temperature resistant reaches 135 degree, low temperature resistant reaches-45 degree.

And owing to the civil power pay standard of China is 220V50Hz alternating current power supply, in order to drive LED street lamp to work, it is necessary to mains ac power supply is converted to the LED street lamp of DC source and drives power supply cooperated with LED street lamp to use by design. But LED street lamp on the market drives power supply mostly to there is design complexity, the problem that volume is relatively big and stability is not good constrains the popularization of LED street lamp.

Utility model content

This utility model aims to provide a kind of LED street lamp and drives power supply, and to solve, LED drive power volume is big, produce complicated and high in cost of production problem, and work when can stablize long, meets the requirement of LED street lamp, promotes the popularization of LED street lamp.

A kind of LED street lamp drives power supply, including double-layer PCB board, described double-layer PCB board is provided with electric fuse F1, common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, surging device RM1, differential mode capacitor CX1, differential mode inductance L1, the whole DB1 of bridge, electric capacity C1, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, electric capacity C10, electric capacity C11, Intelligent control board CN1, Intelligent control board CN2, metal-oxide-semiconductor Q1, transformator TX1, diode D2, diode D4, safety electric capacity CY1, safety electric capacity CY2, safety electric capacity CY3, safety electric capacity CY4, double-layer PCB board is also equipped with fin, the upper left corner of double-layer PCB board, the upper right corner has screw via, the lower right corner of double-layer PCB board has screw fixing hole.

Further, described its surrounding of screw via is surrounded with 8 or above heavy copper guide hole.

Further, described double-layer PCB board also has exchange interface AC-IN and direct current delivery outlet DC-OUT.

The utility model has the advantage of, compact conformation is reliable, can stablize the DC source providing bigger for a long time, has the heat produced when fin is responsible for driving power work and discharges. And in order to the ground wire of the upper and lower faces of double-layer PCB board is connected, it is necessary to perforate heavy copper are set in double-layer PCB board, copper as heavy in screw via, it will be made to block, hinder the installation of screw to increase difficulty of processing. For this problem, heavy copper guide hole is set in screw via surrounding, replaces the heavy copper of screw via, the ground wire of the upper and lower faces of double-layer PCB board can be made fully to connect, it is prevented that electric potential difference occurs, it is ensured that LED street lamp drives the ground connection performance of power supply.

Accompanying drawing explanation

In order to this utility model embodiment or technical scheme of the prior art are more clearly described, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the partial, detailed view of screw via of the present utility model.

Detailed description of the invention

This utility model aims to provide a kind of LED street lamp and drives power supply, and to solve, LED drive power volume is big, produce complicated and high in cost of production problem, and work when can stablize long, meet the requirement of LED street lamp, promote the popularization of LED street lamp, contribute to reducing street lamp operating cost, save the energy.

Below in conjunction with the accompanying drawing in this utility model, the technical scheme in this utility model is purged, is fully described by, it is clear that described is only a part of embodiment of this utility model, rather than whole embodiments. Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of this utility model protection.

As illustrated in fig. 1 and 2, a kind of LED street lamp drives power supply, including double-layer PCB board 1, described double-layer PCB board 1 is provided with electric fuse F1, common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, surging device RM1, differential mode capacitor CX1, differential mode inductance L1, the whole DB1 of bridge, electric capacity C1, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, electric capacity C10, electric capacity C11, Intelligent control board CN1, Intelligent control board CN2, metal-oxide-semiconductor Q1, transformator TX1, diode D2, diode D4, safety electric capacity CY1, safety electric capacity CY2, safety electric capacity CY3, safety electric capacity CY4, double-layer PCB board 1 is also equipped with fin 2, the upper left corner of double-layer PCB board 1, the upper right corner has screw via 3, described its surrounding of screw via 3 is surrounded with 8 or above heavy copper guide hole 5, the lower right corner of double-layer PCB board 1 has screw fixing hole 4.Described double-layer PCB board 1 also has exchange interface AC-IN and direct current delivery outlet DC-OUT.

During utility model works, the alternating current power supply that civil power provides is entered by the exchange interface AC-IN on double-layer PCB board 1, electric current is through electric fuse F1, common mode inductance LF2, common mode inductance LF1, surging device RM1, differential mode capacitor CX1, differential mode inductance L1, the whole DB1 of bridge, electric capacity C1, electric capacity C11, electric capacity C7, electric capacity C6, Intelligent control board CN1, electric capacity C4, metal-oxide-semiconductor Q1, transformator TX1, diode D2, diode D4, electric capacity C5, electric capacity C10, Intelligent control board CN2, safety electric capacity CY3, after common mode inductance LF3 processes, DC source is exported by direct current delivery outlet DC-OUT, LED street lamp outside supply uses. the heat that LED street lamp produces during driving power work is dispersed rapidly by fin 2. screw via 3, screw fixing hole 4 all install screw additional, in order to fixing double-layer PCB board 1 on the external protective structures such as pedestal. owing to screw via 3 surrounding is surrounded with heavy copper guide hole 5, and heavy copper guide hole 5 connects the ground wire of its upper and lower two-layer of double-layer PCB board, is installed on the screw contact external protective structures on screw via 3, reaches the effect of good earth.

Alternating current is converted to galvanic component structure and screw hole structure adequately grounded by arranging to have by this utility model, it is provided that stability and high efficiency, the LED drive power that safety is high, the LED street lamp being suitably applied steady illumination when needing long uses.

Above content is further description this utility model done in conjunction with concrete preferred implementation, it is impossible to assert that of the present utility model being embodied as is only limited to these explanations. For this utility model person of an ordinary skill in the technical field, without departing under this utility model concept thereof, it is also possible to make some simple deduction or replace, protection domain of the present utility model all should be considered as belonging to.

Claims (3)

1. a LED street lamp drives power supply, including double-layer PCB board, it is characterized in that, described double-layer PCB board is provided with electric fuse F1, common mode inductance LF1, common mode inductance LF2, common mode inductance LF3, surging device RM1, differential mode capacitor CX1, differential mode inductance L1, the whole DB1 of bridge, electric capacity C1, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, electric capacity C10, electric capacity C11, Intelligent control board CN1, Intelligent control board CN2, metal-oxide-semiconductor Q1, transformator TX1, diode D2, diode D4, safety electric capacity CY1, safety electric capacity CY2, safety electric capacity CY3, safety electric capacity CY4, double-layer PCB board is also equipped with fin, the upper left corner of double-layer PCB board, the upper right corner has screw via, the lower right corner of double-layer PCB board has screw fixing hole.

2. a kind of LED street lamp according to claim 1 drives power supply, it is characterised in that described its surrounding of screw via is surrounded with 8 or above guide hole.

3. a kind of LED street lamp according to claim 1 drives power supply, it is characterised in that also have exchange interface AC-IN and direct current delivery outlet DC-OUT on described double-layer PCB board.