CN212435977U

CN212435977U - LED street lamp with display screen

Info

Publication number: CN212435977U
Application number: CN202021157999.8U
Authority: CN
Inventors: 曾振武; 叶艺苗; 吴文琴
Original assignee: Sanming University
Current assignee: Sanming University
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-01-29
Anticipated expiration: 2030-06-19

Abstract

The utility model provides a LED street lamp with a display screen, which comprises a power module, a main controller module, a display module, a plurality of switch circuits, a plurality of LED driving modules and a plurality of LED modules; the main controller module is electrically connected with the power supply module and the display module and is respectively connected to the LED driving modules through a plurality of switch circuits; each LED module is correspondingly connected to one LED driving module. The utility model divides the LED load into a plurality of independently controlled LED modules, and enables the LED modules to be simultaneously used at the peak of illumination to realize high-brightness illumination; and at the low peak of illumination, any one or more LED modules in the LED load can be selectively started to realize dimming illumination, so that the aim of saving energy is fulfilled.

Description

LED street lamp with display screen

Technical Field

The utility model relates to a LED technical field particularly, relates to a LED street lamp with display screen.

Background

The LED street lamp is street lamp equipment adopting an LED light source for illumination, and is different from a conventional street lamp, the LED light source adopts low-voltage direct current power supply and high-efficiency white light synthesized by a GaN-based power type blue light LED and yellow, and the LED street lamp has the unique advantages of high efficiency, safety, energy conservation, environmental protection, long service life, high response speed, high color rendering index and the like, and has a better road illumination effect.

Most of the existing LED street lamps mostly adopt photoresistor lighting or timing control. The controller is generally used for automatically switching on the power supply of the street lamp in the dark at night, turning off the street lamp according to the set time when few pedestrians are in the late night, and automatically switching on the power supply for the lighting time in the morning. The two control modes have the disadvantages that the LED load cannot realize dimming control, the control mode is not flexible enough, and the waste of electric energy is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a LED street lamp with display screen is in order to solve the problem that the above-mentioned exists.

In order to achieve the above object, the utility model adopts the following technical scheme: an LED street lamp with a display screen comprises a power supply module, a main controller module, a display module, a plurality of LED driving modules and a plurality of LED modules; the main controller module is electrically connected with the power supply module, the display module and the plurality of LED driving modules; each LED module is correspondingly connected to one LED driving module.

Furthermore, the display module is an OLED display screen.

Furthermore, the OLED display screen adopts a ssd1306 liquid crystal display driving chip, and the data transmission mode adopts an IIC bus to be connected with the main control module.

Further, the device also comprises a key circuit; the key circuit comprises a singlechip and a scanning 74HC148IC which are connected with each other; the single chip microcomputer is connected to the main controller module.

Further, the LED driving module is a BP2833 non-isolated step-down LED driving chip.

Further, the power supply module comprises a control system power supply and an LED driving power supply which are designed separately; the LED driving power supply is connected with the LED driving module, and the control system power supply is electrically connected with the main controller module, the key circuit and the display module.

Furthermore, the power supply module further comprises a radiator, wherein the radiator is connected with the main controller module and can radiate the power supply module.

Further, the master controller module model is STC818K64S 4.

Further, the switch circuit is a relay.

Furthermore, each LED module comprises a plurality of LED lamps connected in series, an aluminum substrate for fixing the LED lamps and a heat dissipation module; the aluminum substrate is provided with a temperature measuring module, and the temperature measuring module and the heat dissipation module are electrically connected with the main controller module.

In summary, in the LED street lamp with the display screen according to the embodiment, the LED load is divided into the plurality of independently controlled LED modules, and the LED modules are simultaneously activated at the peak of lighting to realize high-brightness lighting; and at the low peak of illumination, any one or more LED modules in the LED load can be selectively started to realize dimming illumination, so that the aim of saving energy is fulfilled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of an LED street lamp with a display screen provided by an embodiment of the present invention.

Fig. 2 is a schematic circuit diagram of a power module according to an embodiment of the present invention.

Fig. 3 is a schematic circuit diagram of a main controller module according to an embodiment of the present invention.

Fig. 4 is a schematic circuit diagram of a display module according to an embodiment of the present invention.

Fig. 5 is a schematic circuit diagram of a relay module according to an embodiment of the present invention.

Fig. 6 is a schematic circuit diagram of a driving module according to an embodiment of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.

In the description of the present invention, it is to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, an embodiment of the present invention provides an LED street lamp with a display screen, which includes a power module 10, a main controller module 20, a display module 30, a plurality of switch circuits 40, a plurality of LED driving modules 50, and a plurality of LED modules 60; the main controller module 20 is electrically connected to the power module 10 and the display module 30, and the main controller module 20 is respectively connected to the plurality of LED driving modules 50 through a plurality of switch circuits 40; each LED module 60 is connected to one LED driving module 50.

In this embodiment, the power module 10 may be used to provide power required for the operation of each component of the entire LED street lamp. As shown in fig. 2, in an implementation manner, the power module 10 may use a transformer to step down a mains supply, output a 24V ac voltage, rectify the ac voltage through a rectification module, passively adjust power factors through fpc, provide the ac voltage after being filtered by a capacitor to an LM2596 voltage stabilizing chip, output the ac voltage through two pins, and provide the ac voltage to components of the LED street lamp, such as the display module 30, the main controller module 20, and the LED driving module 50, through an inductor. The FB pin is connected with the output end and maintains the output at about 5 v. The LM2596 is a step-down switching regulator, and comprises fixed output products of 3.3V, 5V and 12V and adjustable output voltage products, wherein the output voltage adjustment range is 1.2-37V, and the error is +/-4%. The maximum output current 3A.

In this embodiment, the main controller module 20 is used as a core control module of the LED street lamp, plays a crucial role in the LED street lamp, and drives the whole LED street lamp to realize normal operation of the LED street lamp. For example, it may control the operating state of the corresponding LED module 60 by controlling the opening or closing of the switching circuit 40.

As shown in fig. 3, in this embodiment, the master controller module 20 may employ STC818K64S 4. Of course, it should be noted that, in other embodiments of the present invention, chips of other models may be used as the main controller module 20, and these solutions are all within the protection scope of the present invention.

In this embodiment, the display module 30 may be used to display the operating status of the LED street lamp, and in addition, the user may also set parameters of the LED street lamp through the display module 30, for example, set the timing parameter, the brightness parameter and the temperature value of each LED module.

As shown in fig. 4, in this embodiment, the display module 30 may use a 0.96-inch OLED panel, which is driven by a ssd1306 lcd driver chip and uses an IIC bus as a data transmission mode, so as to save the i/o port of the main controller module 20. Of course, it should be noted that in other embodiments of the present invention, other types of display screens, such as a liquid crystal display screen, may also be adopted, and these solutions are all within the protection scope of the present invention.

In this embodiment, the switch circuits 40 are electrically connected to the main controller module 20, and the main controller module 20 can control the on/off of each switch circuit 40, so as to adjust the brightness of the whole LED street lamp.

As shown in fig. 5, in this embodiment, the switch circuit 40 may be a relay, and when a signal enters the optocoupler, the signal is transmitted to the triode, the relay is powered on, and the relay is closed. The main controller module 20 controls the on/off of the relay to control the operating state of each LED module 60.

In this embodiment, for example, if the number of the switch circuits 40 is 4, the number of the LED driving modules 50 and the number of the LED modules 60 are also 4 correspondingly. Of course, it should be noted that, in other embodiments of the present invention, the numbers of the switch circuit 40, the LED driving module 50 and the LED module 60 can be set according to actual needs, and these schemes are all within the protection scope of the present invention.

In this embodiment, the LED driving module 50 is used for driving the LED module 60.

As shown in fig. 6, in the present embodiment, the LED driving module 50 employs a BP2833 non-isolated step-down LED constant current driving chip. BP2833 operates at a wide operating voltage of 85-265 Vac. The chip has extremely low working current, a high-precision sampling circuit is arranged in the chip, high-precision output current is realized, good adjustment rate is achieved, the output current does not change along with working voltage, multiple protection is achieved, such as open/short circuit protection and under-voltage protection, and the chip has wide application.

In this embodiment, the LED module 60 is connected to a plurality of LED lamps in series. For example, each LED module 60 may include 6 LED lamps, and a single LED lamp has a maximum power of 1W, a maximum current of 300mA, and a voltage of 3.0-3.4V. Of course, it should be noted that, in other embodiments of the present invention, the number of the LED lamps included in each LED module 60 and the corresponding power thereof can be set according to actual needs, and the present invention is not limited specifically.

In this embodiment, the LED lamp further includes an aluminum substrate for fixing the LED lamp and a heat dissipation module 80; the aluminum substrate is provided with a temperature measuring module 90, and both the temperature measuring module 90 and the heat dissipation module 80 are electrically connected with the main controller module 20.

The heat dissipation module 80 may be a fan, and the temperature measurement module 90 may be an infrared temperature measurement sensor.

The temperature measuring module 90 is fixed on the aluminum substrate to monitor the temperature of the aluminum substrate connected with the LED lamp in real time, and when the temperature of the aluminum substrate exceeds a first threshold (e.g., 60 ℃), the fan is started to dissipate heat of the entire aluminum substrate and the LED. When the temperature measuring module 90 monitors that the temperature of the aluminum substrate is lower than a second threshold (such as 40 ℃) in real time, the fan stops radiating, and the process is repeated, so that the working temperature of the LED light source is reduced, and the luminous efficiency of the LED light source is ensured. Of course, it should be noted that, in other embodiments of the present invention, the threshold value may be set according to actual needs, and the present invention is not limited specifically.

Optionally, in this embodiment, the electronic device further includes a key circuit 70; the key circuit 70 comprises a singlechip and a scanning 74HC148IC which are connected with each other; the single chip is connected to the main controller module 20.

Through the key circuit 70 and the display module 30, a user can input parameter values to the main controller module 50, for example, timing parameters, brightness parameters and temperature values of each LED module 60 can be set.

The working principle of the present invention is described in detail below. In this embodiment, a user first sets parameter values of each LED module 60 through the key circuit 70 and the display module 30, for example, sets a timing parameter, a brightness parameter and a temperature value of each LED module 60. The main controller module 20 stores parameter values set by a user, and controls the on/off of the switch circuit 40 corresponding to each path of the LED module 60 according to the parameter values, so that each path of the LED module 60 works according to the given parameter values, thereby flexibly adjusting the working state of each path of the LED module 60, flexibly adjusting the brightness of the whole LED street lamp, and meeting the lighting requirements in different scenes.

Some preferred embodiments of the invention are described further below.

Preferably, the power module 10 includes a control system power supply and an LED driving power supply; the LED driving power supply is connected to the LED driving module 50, and the control system power supply is electrically connected to the main controller module 20, the key circuit 70 and the display module 30.

The power supply mode with the separated design has the advantage that the design can be prevented from being out of control due to the faults of the power supply module.

Preferably, the power supply module further comprises a heat sink, wherein the heat sink is connected with the main controller module 20 and can dissipate heat of the power supply module 10.

For example, the heat sink may be a fan, and an air outlet of the heat sink faces the power module 10, so as to dissipate heat of the power module 10.

Of course, the utility model can also be a cooling device such as a refrigeration piece, and the utility model is not limited in particular.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An LED street lamp with a display screen is characterized by comprising a power supply module, a main controller module, a display module, a plurality of switch circuits, a plurality of LED driving modules and a plurality of LED modules; the main controller module is electrically connected with the power supply module and the display module and is respectively connected to the LED driving modules through a plurality of switch circuits; each LED module is correspondingly connected to one LED driving module.

2. The LED street lamp with the display screen according to claim 1, wherein the display module is an OLED display screen.

3. The LED street lamp with the display screen as claimed in claim 2, wherein the OLED display screen is driven by using a ssd1306 LCD driver chip, and is connected to the main controller module through an IIC bus.

4. The LED street lamp with the display screen according to claim 1, further comprising a key circuit; the key circuit comprises a singlechip and a scanning 74HC148IC which are connected with each other; the single chip microcomputer is connected to the main controller module.

5. The LED street lamp with the display screen according to claim 1, wherein the LED driving module is a BP2833 non-isolated step-down LED constant current driving chip.

6. The LED street lamp with the display screen according to claim 4, wherein the power supply module comprises a control system power supply and an LED driving power supply; the LED driving power supply is connected with the LED driving module, and the control system power supply is electrically connected with the main controller module, the key circuit and the display module.

7. The LED street lamp with the display screen as claimed in claim 1, wherein the model of the main controller module is STC818K64S 4.

8. The LED street lamp with the display screen according to claim 1, wherein the switch circuit is a relay.

9. The LED street lamp with the display screen according to claim 1, wherein each LED module comprises a plurality of LED lamps connected in series, an aluminum substrate for fixing the LED lamps and a heat dissipation module; the aluminum substrate is provided with a temperature measuring module, and the temperature measuring module and the heat dissipation module are electrically connected with the main controller module.

10. The LED street lamp with the display screen according to claim 6, further comprising a heat sink, wherein the heat sink is connected with the main controller module and can dissipate heat of the power module.