CN219577314U

CN219577314U - LED lighting street lamp based on novel driving circuit structure

Info

Publication number: CN219577314U
Application number: CN202223512317.2U
Authority: CN
Inventors: 牛昌明
Original assignee: Jiangsu Shangjin Optoelectronics Technology Co ltd
Current assignee: Jiangsu Shangjin Optoelectronics Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-08-22
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of LED (light-emitting diode) illuminating street lamps, in particular to an LED illuminating street lamp based on a novel driving circuit structure, which comprises a lamp post, a main board and LED lamp beads, wherein one side of the lamp post is fixedly connected with a support arm, one side of the support arm is fixedly connected with a lampshade, the main board is arranged in the lampshade, the lower end of the main board is connected with the LED lamp beads, an EMI filter is arranged in a driving circuit in the main board, and the EMI filter is connected with external commercial power. Through this street lamp, the connection of the EMI wave filter in the drive circuit and outside commercial power for 220v alternating current's commercial power filters the interference signal in the commercial power under the effect of EMI wave filter, and the greatly decays the EMI signal that passes in through the commercial power, makes the street lamp avoid its harm, and the back is filtered through half-bridge inverter circuit conversion to direct current, and the amplitude of rethread PWM control circuit converts the amplitude of input voltage to the pulse of width certain, makes circuit frequency high, power density is high, the reliability is high.

Description

LED lighting street lamp based on novel driving circuit structure

Technical Field

The utility model relates to the technical field of LED (light-emitting diode) illumination street lamps, in particular to an LED illumination street lamp based on a novel driving circuit structure.

Background

The LED lamp beads are widely used in street lamps, especially high-power street lamps, because of their lower energy consumption and higher brightness, and the driving circuit in the LED lighting street lamps in the related art cannot filter the interference in the mains supply, so that the stability of the circuit is difficult to ensure, thereby leading to unstable illumination and greatly reducing the service life of the LED lamp beads;

the above information disclosed in this background section is only for the understanding of the background of the inventive concept and, therefore, it may contain information that does not form the prior art.

Disclosure of Invention

The utility model aims to provide an LED illuminating street lamp based on a novel driving circuit structure, which aims to solve the problems that the driving circuit in the LED illuminating street lamp provided in the background art cannot filter interference in commercial power, and the stability of the circuit is difficult to ensure, so that the instability of illumination and the service life of LED lamp beads are greatly reduced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a LED street lighting based on novel drive circuit structure, includes lamp pole, mainboard and LED lamp pearl, one side fixed connection support arm of lamp pole, one side fixed connection lamp shade of support arm, the inside of lamp shade is provided with the mainboard, the LED lamp pearl is connected to the lower extreme of mainboard, is provided with the EMI wave filter in the drive circuit of mainboard inside, and the outside commercial power is connected to the EMI wave filter, and the EMI wave filter carries out the electricity with active factor control circuit and is connected, active factor control circuit carries out the electricity with half-bridge inverter circuit and is connected, half-bridge inverter circuit carries out the electricity with PWM control circuit and is connected.

Preferably, the PWM control circuit is electrically connected to the LED lamp beads.

Preferably, the lower end of the lamp post is fixedly connected with a base, and the front surface of the base is provided with a door body.

Preferably, the lower end of the base is fixedly connected with the bottom plate.

Preferably, the upper end of the bottom plate is provided with a fastening bolt.

The beneficial effects of the utility model are as follows:

through this street lamp, the EMI wave filter in the drive circuit is connected with outside commercial power for the commercial power of 220v interchange filters the interference signal in the commercial power under the effect of EMI wave filter, and the greatly decays the EMI signal that passes through commercial power and gets into, makes the street lamp avoid its harm, converts into direct current through half-bridge inverter circuit after filtering, and the amplitude of input voltage is converted into the pulse of width certain through PWM control circuit, makes circuit frequency high, power density is high, the reliability is high, has realized the street lamp illumination stability, the purpose of extension LED lamp pearl life-span has increased the practicality of street lamp.

Drawings

Fig. 1 is a schematic diagram of a driving circuit of an LED lighting street lamp based on a novel driving circuit structure according to the present utility model;

fig. 2 is a schematic structural diagram of an LED lighting street lamp based on a novel driving circuit structure according to the present utility model.

In the figure: 1 base, 2 lamp pole, 3 bottom plates, 4 support arms, 5 lamp shade, 6 mainboard, 7LED lamp pearl, 8 door bodies, 9EMI wave filter, 10 active factor control circuit, 11 half-bridge inverter circuit, 12PWM control circuit, 13 fastening bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-2, an LED lighting street lamp based on a novel driving circuit structure comprises a lamp post 2, a main board 6 and an LED lamp bead 7, wherein one side of the lamp post 2 is fixedly connected with a support arm 4, one side of the support arm 4 is fixedly connected with a lampshade 5, the inside of the lampshade 5 is provided with the main board 6, the lower end of the main board 6 is connected with the LED lamp bead 7, an EMI filter 9 is arranged in a driving circuit inside the main board 6, and the EMI filter 9 is connected with external commercial power.

The EMI filter 9 is electrically connected to the active factor control circuit 10, the active factor control circuit 10 is electrically connected to the half-bridge inverter circuit 11, the half-bridge inverter circuit 11 is electrically connected to the PWM control circuit 12, and the PWM control circuit 12 is electrically connected to the LED lamp beads 7.

Through this design, the connection of EMI wave filter 9 and outside commercial power for 220v alternating current's commercial power filters the interference signal in the commercial power under the effect of EMI wave filter 9, and the greatly decays the EMI signal that passes through commercial power and gets into, makes the street lamp avoid its harm, and the filtration is back through half-bridge inverter circuit 11 conversion, and the amplitude of the input voltage is converted into the pulse of width certain through PWM control circuit 12 again, makes circuit frequency high, power density high, the reliability is high, has realized street lamp operating temperature, the purpose of extension LED lamp pearl life-span.

In other embodiments, the lower end of the lamp post 2 is fixedly connected to the base 1, and the front surface of the base 1 is provided with a door body 8.

Through this design, the positive door body 8 of base 1 has made things convenient for the staff to maintain the block terminal in the base.

In other embodiments, the lower end of the base 1 is fixedly connected with the bottom plate 3, and the upper end of the bottom plate 3 is provided with a fastening bolt 13.

Through this design, fastening bolt 13 on base 1 lower extreme bottom plate 3 for the staff can carry out the dismouting fast when dismouting street lamp.

In this embodiment, the EMI filter 9 is connected with external commercial power, so that the 220v ac commercial power filters the interference signal in the commercial power under the action of the EMI filter 9, so that the street lamp is prevented from being damaged by the EMI signal, the filtered street lamp is converted into direct current through the half-bridge inverter circuit 11, and the amplitude of the input voltage is converted into a pulse with a certain width through the PWM control circuit 12, so that the circuit frequency is high, the power density is high, the reliability is high, the purpose of stabilizing the street lamp illumination and prolonging the service life of the LED lamp beads is achieved, and the practicability of the street lamp is improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a LED street lighting based on novel drive circuit structure, includes lamp pole (2), mainboard (6) and LED lamp pearl (7), a serial communication port, one side fixed connection support arm (4) of lamp pole (2), one side fixed connection lamp shade (5) of support arm (4), the inside of lamp shade (5) is provided with mainboard (6), LED lamp pearl (7) are connected to the lower extreme of mainboard (6), be provided with EMI wave filter (9) in the drive circuit of mainboard (6) inside, the outside commercial power is connected in EMI wave filter (9), and EMI wave filter (9) are connected with active factor control circuit (10) electricity, active factor control circuit (10) are connected with half-bridge inverter circuit (11) electricity, half-bridge inverter circuit (11) are connected with PWM control circuit (12) electricity.

2. The LED lighting street lamp based on the novel driving circuit structure according to claim 1, wherein the PWM control circuit (12) is electrically connected with the LED lamp beads (7).

3. The LED illuminating street lamp based on the novel driving circuit structure according to claim 2, wherein the lower end of the lamp post (2) is connected with the base (1), and the front surface of the base (1) is provided with the door body (8).

4. A LED lighting street lamp based on a novel driving circuit structure according to claim 3, characterized in that the lower end of the base (1) is fixedly connected with the bottom plate (3).

5. The LED lighting street lamp based on the novel driving circuit structure according to claim 4, wherein the upper end of the bottom plate (3) is provided with a fastening bolt (13).