CN116321590A - High-voltage LED dimming control system based on charging pile - Google Patents
High-voltage LED dimming control system based on charging pile Download PDFInfo
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/345—Current stabilisation; Maintaining constant current
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/185—Controlling the light source by remote control via power line carrier transmission
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/25—Circuit arrangements for protecting against overcurrent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The invention relates to the technical field of charging pile control, and discloses a high-voltage LED dimming control system based on a charging pile, which comprises the following components: the LED module is connected with the communication module, and sends a control code to the communication module; the communication module is connected with the power supply module, converts the control code into a dimming signal and sends the dimming signal to the power supply module; the power supply module comprises a charging pile power supply, the power supply module is connected with the LED module, and the charging pile power supply supplies power to the charging pile and simultaneously supplies power to the LED module; the LED module comprises at least one LED area array, and the LED area array comprises an LED lamp panel; the power supply module changes the power supply for the LED module through the dimming signal, so that the illumination intensity of the LED lamp panel is adjusted, and the LED lamp panel carries out illumination pretreatment on the photovoltaic cell charged by the charging pile power supply. The invention can realize uniform illumination and higher temperature rise and illumination, effectively improve the illumination pretreatment efficiency and reduce the cost.
Description
Technical Field
The invention relates to the technical field of charging pile control, in particular to a high-voltage LED dimming control system based on a charging pile.
Background
Under the high-speed development of new energy automobiles and the support of policies, the electric automobile charging facility industry is rapidly developed, and the technology is continuously improved and upgraded. The charging pile is paid more and more attention as an important link in the new energy automobile industry chain, and the continuous perfection of the charging battery technology enables the new energy automobile to have great advantages in price and performance. Meanwhile, the photovoltaic industry has a significant position in China, and researches show that in each manufacturing link of the photovoltaic industry worldwide, china has an absolute industrial share, and the photovoltaic industry has an absolute dominance in terms of photovoltaic cells.
However, photovoltaic cells have an unavoidable problem: there is a photo-induced decay phenomenon. The phenomenon of light attenuation can be divided into two phases: initial light induced attenuation and aging attenuation. Initial light induced decay, i.e. the phenomenon that the output power of a photovoltaic module drops considerably during the first few days of initial use, but then tends to stabilize. The method for solving the initial photoinduced attenuation in the prior art always comprises the steps of light pretreatment, so that the early photoinduced attenuation of the battery occurs before the assembly is manufactured, the early photoinduced attenuation of the photovoltaic assembly is very small, and the early photoinduced attenuation can be controlled within a measurement error; meanwhile, the probability of hot spots of the photovoltaic module can be greatly reduced. However, the light used in the light pretreatment needs to have strict requirements, such as temperature rise, illumination and the like, while the traditional light machine equipment has the defects of high power consumption, complex operation, high price and the like, so that the light pretreatment has high cost and low efficiency.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects in the prior art, and provide the high-voltage LED dimming control system based on the charging pile, which can realize uniform illumination and higher temperature rise and illumination, effectively improve the illumination pretreatment efficiency and reduce the cost.
In order to solve the technical problems, the invention provides a high-voltage LED dimming control system based on a charging pile, which comprises a programmable logic controller, a power module, a communication module and an LED module,
the programmable logic controller is connected with the communication module and sends a control code to the communication module;
the communication module is connected with the power supply module, converts the control code into a dimming signal and sends the dimming signal to the power supply module;
the power supply module comprises a charging pile power supply, the power supply module is connected with the LED module, and the charging pile power supply supplies power to the LED module while supplying power to the charging pile;
the LED module comprises at least one LED area array, and the LED area array comprises an LED lamp panel; the power supply module changes the power supply power for the LED module through the dimming signal, so that the illumination intensity of the LED lamp panel is adjusted, and the LED lamp panel performs illumination pretreatment on the photovoltaic cell charged by the charging pile power supply.
In one embodiment of the invention, the programmable logic controller is connected with the communication module through a shielded twisted pair, the communication module is connected with the power module through a power shielded wire, and the power module is connected with the LED module through a cable.
In one embodiment of the present invention, the programmable logic controller is connected to the power module to monitor the input power and the output power of the power module in real time.
In one embodiment of the invention, the LED area array further comprises a water tank, and the programmable logic controller is connected with the LED lamp panel;
the programmable logic controller monitors the working temperature of the LED lamp panel in real time, and controls the water tank to cool the LED lamp panel when the temperature of the LED lamp panel is too high.
In one embodiment of the invention, the LED lamp panel comprises a copper substrate and at least one temperature-sensitive resistor,
a heat conduction silicone grease which is tightly attached is arranged between the copper substrate and the water tank, and the copper substrate is fixed on the water tank and used for increasing heat dissipation;
the temperature sensing resistor is connected with the LED lamp panel by three wires and is used for acquiring the working temperature of the LED lamp panel in real time and transmitting the working temperature to the programmable logic controller.
In one embodiment of the invention, the lamp beads on the LED lamp panel are provided with silica gel lenses for condensing light;
the water tank carries out uniform heat dissipation through the S-shaped flow channel, exhaust pockets are arranged on two sides of the water tank and connected with an external exhaust fan for discharging heat generated by the LED lamp panel.
In one embodiment of the invention, the communication module is a communication box formed by packaging, a signal converter and a PCB (printed circuit board) are arranged in the communication box, the signal converter is arranged on the PCB, a communication box shell is arranged outside the signal converter and the PCB, the signal converter converts the control code into a dimming signal, and the dimming signal is sent to the power module through the PCB.
In one embodiment of the invention, the signal converter is configured to receive only control codes from a fixed address.
In one embodiment of the invention, the power supply module is a power supply case formed by encapsulation, a charging pile power supply and an alternating current transformer are arranged in the power supply case, a power supply case shell is arranged outside the charging pile power supply and the alternating current transformer, and the alternating current transformer is directly sleeved on one fire wire of three-phase power input of the power supply; the charging pile power supply adopts a constant current mode, and an output direct current is divided into a plurality of positive and negative lines through a zero line row.
In one embodiment of the invention, the output end of the power supply case is provided with a plurality of aviation plugs with the same number of positive poles and negative poles, and the positive poles and the negative poles are connected to the LED lamp panels of the LED area array through cables;
the alternating current transformer monitors the input power change of the three-phase power supply and sends the input power change to the programmable logic controller, the programmable logic controller calculates the input current and compares the input current with a preset current threshold value, and an alarm is given out when the calculated input current exceeds the current threshold value.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the invention, the charging pile power supply is combined with the LEDs, the charging pile power supply is used for supplying power to the LEDs, and the LEDs are used for providing illumination for the photovoltaic cells charged by the charging pile power supply for illumination pretreatment. The voltage and current of the charging pile power supply are continuously adjustable, and the luminous intensity of the LED can be well controlled. The output power of the LED is high, so that the energy consumption can be saved; the LED lamp can stably output under a high-pressure environment, and the uniformly arranged LEDs can well perform illumination homogenization, so that the operation is simple and convenient; the temperature rise and the illumination of the LED are relatively high, so that the requirements of the LED on lamplight in the illumination pretreatment process can be met, the illumination pretreatment efficiency is effectively improved, and the cost is reduced.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which:
fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural diagram of a communication box according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a power supply chassis according to an embodiment of the present invention.
Description of the specification reference numerals: 1. a signal converter; 2. an upper case of the communication box; 3. an onboard power supply; 4. a communication box bottom shell; 5. a PCB circuit board; 6. a charging pile power supply; 7. an upper case of the power supply case; 8. an alternating current transformer; 9. a power supply cabinet end cover.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to fig. 1, the invention discloses a high-voltage LED dimming control system based on a charging pile, which comprises a Programmable Logic Controller (PLC), a power module, a communication module and an LED module.
The programmable logic controller is connected with the communication module and sends a control code to the communication module. The communication module is connected with the power supply module, converts the control code into a dimming signal and sends the dimming signal to the power supply module. The power module comprises a charging pile power supply 6 and takes the charging pile power supply 6 as a main body, the power module is connected with the LED module, and the charging pile power supply 6 supplies power for the LED module while supplying power for the charging pile. The LED module comprises at least one LED area array, and the LED area array comprises an LED lamp panel; the power supply module changes the power supply power for the LED module through the dimming signal, so that the illumination intensity of the LED lamp panel is adjusted, and the LED lamp panel performs illumination pretreatment on the photovoltaic cell charged by the charging pile power supply 6.
PLC technology is mature, control function is enhanced, power consumption and size are reduced, cost is reduced, reliability is improved, and programming and fault detection are flexible and convenient. Meanwhile, with the development of remote I/O and communication networks and data processing, the PLC is developed towards the control direction of continuous production process, and becomes a main support of industrial production automation. According to the invention, the integral control is realized through the PLC, the industrial compatibility is more attached, the obstacle of diversification of communication modes of various factories can be solved, and the automation of the illumination pretreatment of the battery piece is conveniently realized. The invention can drive a plurality of LED area arrays simultaneously, and the newly connected LED area array can realize expansion installation by only one communication line, thereby having strong operability and low construction difficulty. By means of the special communication mode in the invention. The PLC can control 60 LED area arrays simultaneously, and has low cost and simple and flexible control.
The programmable logic controller is connected with the communication module through a shielded twisted pair, and the 485 interface of the PLC is connected by using the shielded twisted pair in the embodiment; the communication module is connected with the power module through a power shielding wire, and a CAN interface of the charging pile power supply 6 is connected with the power shielding wire; the power supply module is connected with the LED module through a cable. When an operator controls a computer to adjust the power of a power supply, the computer sends corresponding instructions to a communication box, the communication box converts 485 signals sent by a PLC into CAN signals, and the CAN signals are sent to a charging pile battery to realize PLC control. The CAN communication has the characteristics of higher communication speed, long communication distance and the like, so that the CAN is particularly suitable for interconnection of industrial process monitoring equipment, a plurality of power supply cabinets CAN share one CAN bus, and the control is simpler.
In this embodiment, the programmable logic controller is connected to the power module in a wired or wireless manner, so as to monitor the input power and the output power of the power module in real time, and ensure the stable operation of the system.
In this embodiment, the LED area array further includes a water tank, and the programmable logic controller is connected to the LED lamp panel in a wired or wireless manner. The programmable logic controller monitors the working temperature of the LED lamp panel in real time, and controls the water tank to cool the LED lamp panel when the temperature of the LED lamp panel is too high. In this embodiment, a temperature threshold is set, the temperature of the substrate is monitored in real time, and the temperature is too high to give an alarm for reminding, so that the working state of the LED lamp panel is conveniently known, and the lamp beads on the LED lamp panel are protected.
In this embodiment, the LED lamp panel includes a copper substrate and two PT100 platinum resistors, a heat-conducting silicone grease tightly attached between the copper substrate and the water tank, and the copper substrate is fixed on the water tank for increasing heat dissipation; the PT100 platinum resistor is connected with the LED lamp panel by three wires and is used for acquiring the working temperature of the LED lamp panel in real time and transmitting the working temperature to the programmable logic controller.
In this embodiment, the lamp beads on the LED lamp panel are provided with a silica gel lens for condensing light. The basin adopts 6061 metal material, and a water inlet delivery port ensures through S type runner that the heat dissipation is even, the convulsions pocket is equipped with to the basin both sides, the outside air exhauster is connected to the convulsions pocket for the heat that the discharge LED lamp plate produced.
In this embodiment, the LED area array includes three kinds of small area arrays, large area arrays and ultra-large area arrays, and copper is used as a substrate. The water tank adopts running water circulation heat dissipation, and is convenient to replace while enhancing heat dissipation capacity. The power supply case gives the output direct current to the LED lamp panel through the 8-core cable. The lamp beads on the LED lamp panel can use white light or infrared light, and voltage and current are reduced by adopting a multi-string and less-parallel mode on the arrangement of the lamp beads, so that the line loss is as small as possible.
As shown in fig. 2, in this embodiment, the communication module is a communication box formed by encapsulation, a signal converter 1 and a PCB 5 are disposed in the communication box, the signal converter 1 is mounted on the PCB 5, and a communication box housing is disposed outside the signal converter 1 and the PCB 5; in this embodiment, the material of the communication box shell is metal, the communication box shell includes a communication box upper shell 2 and a communication box bottom shell 4, and the communication box upper shell 2 covers the communication box bottom shell 4 to realize encapsulation.
In this embodiment, the signal converter 1 is a 485-CAN converter, and is soldered on the PCB 5, and is powered by 5V dc. The signal converter 1 converts the control code into a dimming signal, namely a 485 signal sent by the PLC into a CAN signal, and the dimming signal is sent to the power module through the PCB 5, namely the CAN signal is sent to the power module.
In this embodiment, an on-board power supply 3 is further disposed in the communication box, the on-board power supply 3 is mounted on the PCB 5, and the on-board power supply 3 is used for supplying power to the communication box. The communication box is powered by 220V alternating current, the standard product on-board power supply 3 is directly welded to the circuit board, and the on-board power supply 3 converts the 220V alternating current into 5V direct current. The communication box can be internally provided with a working indicator lamp for displaying the working state of the on-board power supply 3 in real time.
In this embodiment, the signal converter 1 is configured to receive only the control code sent from the fixed address. Since no signal received by the on-board power supply 310 seconds will be automatically protected, it is necessary to send a control code command once every 3 seconds, and the on-board power supply 3 will send a feedback code after receiving the control code, so that the communication box will receive many invalid commands. To solve this problem, the address mask is performed on the communication box in this embodiment, and only the command with the fixed address is received. The specific operation is to burn the communication box before use, configure the 485-CAN converter, specify the received fixed address, and set the baud rate and data format. In this embodiment, a communication box can control at most 60 power boxes, so that the communication mode is simplified.
As shown in fig. 3, in this embodiment, the power module is a power cabinet formed by packaging, a charging pile power supply 6 and an ac transformer 8 are disposed in the power cabinet, and a power cabinet housing is disposed outside the charging pile power supply 6 and the ac transformer 8; in this embodiment, the material of the power cabinet housing is metal, the power cabinet housing includes a power cabinet upper case 7 and a power cabinet end cover 9, and the power cabinet end cover 9 is mounted on the power cabinet upper case 7 to realize packaging.
In the embodiment, the alternating current transformer 8 adopts a transformation ratio of 5000:1, three-phase electricity provides energy for a power supply case, the alternating current transformer 8 is directly sleeved on one fire wire of three-phase electricity input of the power supply, and an output signal is connected with the charging pile power supply 6 through a power line;
in this embodiment, the charging pile power supply 6 adopts a constant current mode, and the output direct current is divided into positive and negative 8 lines through a zero line row. In this embodiment, two fans are further disposed at the tail of the power supply case, and convection is formed between the two fans and the fan of the charging pile power supply 6, so that the heat dissipation effect is enhanced. The fan is powered by 220, and one live wire and one zero wire of the three-phase power are directly used as 220V in order to avoid the new voltage from being introduced. The power supply case converts three-phase alternating current into direct current and supplies power to the LED lamp panel.
In this embodiment, each component inside the power supply case is assembled by a power line, and the output end of the power supply case is two aviation plugs of 8 PINs, wherein 8 anodes and 8 cathodes are connected to the LED lamp panel of the LED area array by 2 cables of 8 cores;
in this embodiment, the ac transformer 8 monitors the input power change of the three-phase power supply and sends the input power change to the programmable logic controller through a signal line, and the programmable logic controller calculates an input current and compares the input current with a preset current threshold, and sends an alarm when the calculated input current exceeds the current threshold. In this embodiment, the current threshold is set to be ±0.5a of rated current of the charging pile power supply 6, when the transmitted power exceeds the current value calculated by the corresponding PLC, the output power is abnormal, the PLC can accurately and rapidly obtain feedback, the PLC can react, and the buzzer alarms while the indicator lights flash.
Because the internal program of the charging pile power supply 6 is perfect, parameters such as voltage and current can be directly read, and the state of power supply output can be more conveniently obtained. The charging pile power supply 6 has two kinds of power of 20KW and 30KW, and 20KW power is used to little area array and big area array, and 30KW power is used to super big area array, because 30KW power volume is bigger, so on the chassis structure than 20KW power machine case slightly.
Compared with the prior art, the invention has the advantages that:
1. the price is relatively low. The cost of the LED and the power supply is high at present, and the product is more advantageous by reducing the price of the LED and the power supply. The standard product can be directly purchased by the charging pile power supply, so that the research and development cost is reduced. The power supply cabinet is produced in a standardized mode, the power supply can be compatible with multiple area arrays, and cost is saved in the manual aspect.
2. Is safe and reliable. Because the charging pile power supply technology is relatively mature, the charging pile has the advantages of relatively stable price, diversified communication modes, relatively simple control and the like, and various soft and hard protection such as short circuit, open circuit, soft start and the like, can well protect the LED lamp panel when a line fails, and ensures the safety.
3. The monitoring system is powerful. There are two types of monitoring in the overall system: and (3) monitoring power of a power supply and monitoring the temperature of the LED lamp panel. The working state of the power supply can be inquired through the communication box and the alternating current transformer, the temperature of the LED lamp panel is monitored through an automatic instrument, and whether the whole system works in a normal state or not can be conveniently obtained by workers.
4. The structure and the operation are simple. Compared with the traditional PWM dimming, the standard charging pile module is used in the aspect of power supply, because the charging pile power supply has a proprietary communication protocol, the bottom layer protocol follows CAN2.0B, codes are written according to frame format definition, and therefore, the power can be controlled by only packaging the codes to the PLC and sending the corresponding codes. The power supply case, the communication box and the area array are all standardized, and the structure assembly is simpler.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (10)
1. High-voltage LED dimming control system based on fill electric pile, its characterized in that: comprises a programmable logic controller, a power supply module, a communication module and an LED module,
the programmable logic controller is connected with the communication module and sends a control code to the communication module;
the communication module is connected with the power supply module, converts the control code into a dimming signal and sends the dimming signal to the power supply module;
the power supply module comprises a charging pile power supply, the power supply module is connected with the LED module, and the charging pile power supply supplies power to the LED module while supplying power to the charging pile;
the LED module comprises at least one LED area array, and the LED area array comprises an LED lamp panel; the power supply module changes the power supply power for the LED module through the dimming signal, so that the illumination intensity of the LED lamp panel is adjusted, and the LED lamp panel performs illumination pretreatment on the photovoltaic cell charged by the charging pile power supply.
2. The charging stake based high voltage LED dimming control system of claim 1, wherein: the programmable logic controller is connected with the communication module through a shielding twisted pair, the communication module is connected with the power module through a power shielding wire, and the power module is connected with the LED module through a cable.
3. The charging stake based high voltage LED dimming control system of claim 1, wherein: the programmable logic controller is connected with the power supply module and is used for monitoring the input power and the output power of the power supply module in real time.
4. The charging stake based high voltage LED dimming control system of claim 1, wherein: the LED area array further comprises a water tank, and the programmable logic controller is connected with the LED lamp panel;
the programmable logic controller monitors the working temperature of the LED lamp panel in real time, and controls the water tank to cool the LED lamp panel when the temperature of the LED lamp panel is too high.
5. The charging stake based high voltage LED dimming control system as recited in claim 4, wherein: the LED lamp panel comprises a copper substrate and at least one temperature-sensing resistor,
a heat conduction silicone grease which is tightly attached is arranged between the copper substrate and the water tank, and the copper substrate is fixed on the water tank and used for increasing heat dissipation;
the temperature sensing resistor is connected with the LED lamp panel by three wires and is used for acquiring the working temperature of the LED lamp panel in real time and transmitting the working temperature to the programmable logic controller.
6. The charging stake based high voltage LED dimming control system as recited in claim 4, wherein: the lamp beads on the LED lamp panel are provided with silica gel lenses for condensing light;
the water tank carries out uniform heat dissipation through the S-shaped flow channel, exhaust pockets are arranged on two sides of the water tank and connected with an external exhaust fan for discharging heat generated by the LED lamp panel.
7. The charging stake based high voltage LED dimming control system as claimed in any one of claims 1-6, wherein: the communication module is a communication box formed by packaging, a signal converter and a PCB (printed circuit board) are arranged in the communication box, the signal converter is arranged on the PCB, a communication box shell is arranged outside the signal converter and the PCB, the signal converter converts the control code into a dimming signal, and the dimming signal is sent to the power module through the PCB.
8. The charging stake based high voltage LED dimming control system as recited in claim 7, wherein: the signal converter is configured to receive only control codes from the fixed address.
9. The charging stake based high voltage LED dimming control system as claimed in any one of claims 1-6, wherein: the power module is a power cabinet formed by encapsulation, a charging pile power supply and an alternating current transformer are arranged in the power cabinet, a power cabinet shell is arranged outside the charging pile power supply and the alternating current transformer, and the alternating current transformer is directly sleeved on one fire wire of three-phase power input of the power supply; the charging pile power supply adopts a constant current mode, and an output direct current is divided into a plurality of positive and negative lines through a zero line row.
10. The charging stake based high voltage LED dimming control system as recited in claim 9, wherein: the output end of the power supply case is provided with a plurality of aviation plugs with the same number of positive poles and negative poles, and the positive poles and the negative poles are connected to the LED lamp panels of the LED area array through cables;
the alternating current transformer monitors the input power change of the three-phase power supply and sends the input power change to the programmable logic controller, the programmable logic controller calculates the input current and compares the input current with a preset current threshold value, and an alarm is given out when the calculated input current exceeds the current threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310264728.4A CN116321590A (en) | 2023-03-17 | 2023-03-17 | High-voltage LED dimming control system based on charging pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310264728.4A CN116321590A (en) | 2023-03-17 | 2023-03-17 | High-voltage LED dimming control system based on charging pile |
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| CN116321590A true CN116321590A (en) | 2023-06-23 |
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| CN202310264728.4A Pending CN116321590A (en) | 2023-03-17 | 2023-03-17 | High-voltage LED dimming control system based on charging pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116914020A (en) * | 2023-07-18 | 2023-10-20 | 苏州佳智彩光电科技有限公司 | Be applied to photovoltaic module's infrared welding device |
-
2023
- 2023-03-17 CN CN202310264728.4A patent/CN116321590A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116914020A (en) * | 2023-07-18 | 2023-10-20 | 苏州佳智彩光电科技有限公司 | Be applied to photovoltaic module's infrared welding device |
| CN116914020B (en) * | 2023-07-18 | 2024-02-20 | 苏州佳智彩光电科技有限公司 | Be applied to photovoltaic module's infrared welding device |
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