LED dimming device

Abstract

The utility model discloses a light-emitting diode (LED) dimming device, which comprises an LED module, the power input end of the LED module is connected with a dimming controller, and the power input end of the dimming controller is connected with a dimming driving power supply; the dimming controller comprises a main controller, the main controller is connected with a dimming module, the dimming module is in signal communication with the dimming driving power supply through a dimming signal line, the main controller is connected with a communication module, and the communication module is connected with a signal antenna. The direct current power output by the driving voltage is used as the working power of the dimming controller, the design is simple, and any circuit change on the original driving power supply is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of LED lighting, in particular to an LED dimming device. Background Art

[0002] When light-emitting diodes (LEDs) are used in the field of lighting, LED dimming devices are used to adjust the brightness to meet the personalized needs of users or to dim according to environmental needs to reduce energy consumption. This driving power supply with a dimming signal function has been widely used in the prior art. However, in order for the current driving power supply to achieve dimming of the driving LED module, a dimming signal must be given to the driving power supply, that is, a dimming controller or a dimming module must be provided for the current LED dimming.

[0003] Existing dimming controllers generally use 0-10 or PWM dimming. The controller inputs a dimming signal to the driver power supply through a signal line, and adjusts the output power of the driver power supply through the dimming circuit of the driver power supply to achieve the effect of adjusting the power of the LED module; at the same time, the dimming controller obtains the power of the regulated LED lamp through the input current and voltage, so as to achieve the problem of real-time monitoring of the power consumption of the LED light source, and further energy saving and consumption reduction can be achieved through dimming.

[0004] In order to achieve the purpose of dimming and power consumption monitoring, the traditional dimming controller must be at the input end of the driving power supply, and its wiring method is as follows: 220V power → dimming controller → driving power supply → LED module. The traditional dimming controller has the following problems: First, the total power of the LED module and the driving power supply must be controlled by the dimming controller, which increases the load of the dimming controller, increases the temperature, is prone to failure, and has interference from strong and weak electricity, complex design, and inaccurate dimming; second, the traditional dimming controller directly involves 220V industrial frequency electricity, and an AC / DC conversion module must be included in the design process, which has conversion efficiency and energy consumption losses, and the conversion module is prone to failure, resulting in unstable product performance and high cost; third, since the traditional dimming controller is installed at the incoming line end, it is very susceptible to damage from lightning surges, which will also cause unstable product performance. Fourth, the traditional dimming controller needs to design a PFC module. Since the traditional dimming controller inputs a 220V industrial frequency power supply, in order to improve the power factor of the dimming controller, the PFC module design must be added, which further leads to complex design and high cost. The above problems have affected the further application and development of dimming controllers, and the performance of dimming controllers should be further improved and product costs should be reduced. Utility Model Content

[0005] The purpose of the utility model is to provide an LED dimming device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An LED dimming device comprises an LED module, wherein a power input end of the LED module is connected to a dimming controller, and a power input end of the dimming controller is connected to a dimming driving power supply;

[0008] The dimming controller includes a main controller, the main controller is connected to a dimming module, the dimming module is in signal communication with the dimming driving power supply through a dimming signal line, the main controller is connected to a communication module, and the communication module is connected to a signal antenna.

[0009] As a further solution of the utility model: the input point of the dimming driving power supply is connected to a mains power supply.

[0010] As a further solution of the utility model: the output end of the dimming driving power supply is connected to the dimming controller through a driving power supply DC output wire, and the power output end of the dimming controller is connected to the LED module power through an LED module input wire.

[0011] As a further solution of the utility model: the connection ends of the driving power supply DC output wire and the LED module input wire are fixedly connected through a waterproof connector.

[0012] As a further solution of the utility model: the LED modules are provided with two groups, and the two groups of LED modules are arranged in parallel.

[0013] As a further solution of the utility model: the rear end of the driving power supply DC output wire is connected to the main controller through a DC-DC conversion module, the driving power supply DC output wire is connected to the LED module input wire through a dimming controller output wire, and the dimming controller output wire is provided with a switch light control switch connected to the main controller.

[0014] As a further solution of the utility model: the main controller is connected to a collection module for collecting the input voltage and current of the LED module.

[0015] As a further solution of the utility model: the dimming module adopts a 0-10V voltage signal module and / or a PWM control module.

[0016] As a further solution of the utility model: the communication module adopts any one of a Bluetooth signal module, a 4G signal module, a NB-IOT signal module, a carrier signal module and an RS485 signal module.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. This application uses the DC power output by the driving voltage as the working power of the dimming controller, which is simple in design and does not require any circuit changes to the original driving power supply;

[0019] 2. This application uses the DC power output by the driving voltage as the working power of the dimming controller, eliminating the AC / DC conversion module of the traditional dimming controller, reducing the complexity of the circuit and reducing the product cost;

[0020] 3. The dimming controller of the present application is installed at the rear end of the driving power supply to reduce the impact of lightning surge on the dimming controller, which is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the power connection structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the circuit structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the dimming circuit structure of the utility model.

[0024] In the figure: 1-mains power supply, 2-driving power supply, 3-driving power supply DC output wire, 4-LED module input wire, 5-waterproof connector, 6-LED module, 7-dimming controller, 71-main controller, 72-communication module, 73-dimming module, 74-DC-DC conversion module, 75-collection module, 76-dimming controller output wire, 8-dimming signal line, 9-signal antenna. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-3In an embodiment of the utility model, an LED dimming device includes a mains power supply 1, a dimming driving power supply 2, a dimming controller 7, and an LED module 6 connected in sequence. The output end of the dimming driving power supply 2 is connected to the dimming controller 7 through a driving power supply DC output wire 3, and the power output end of the dimming controller is connected to the LED module 6 through an LED module input wire 4. Electricity enters the LED module 6 from the mains power supply 1 through the dimming driving power supply 2 and the dimming controller 7 in sequence to form an LED lighting power supply. In this embodiment, the connection ends of the driving power supply DC output wire 3 and the LED module input wire 4 are fixedly connected through a waterproof connector 5. Two groups of LED modules 6 are provided, and the two groups of LED modules are arranged in parallel.

[0027] The dimming controller 7 includes a main controller 71, which is connected to a dimming module 73. The dimming module 73 uses a 0-10V voltage signal module and / or a PWM control module. The voltage adjustment signal output by the 0-10V voltage signal module of the dimming controller through the main controller is a DC 0.1-9.9V. When positive logic dimming is used, the dimming controller outputs a minimum 0.1V signal, and the dimming drive power supply outputs a power of 0.1-3W, which is the working power supply of the dimming controller. The dimming module 73 is connected to the dimming drive power supply 2 through the dimming signal line 8. The main controller 71 is connected to a communication module 72 The communication module 72 is connected to a signal antenna 9. The communication module 72 adopts any one of a Bluetooth signal module, a 4G signal module, a NB-IOT signal module, a carrier signal module and an RS485 signal module. In addition, the rear end of the driving power supply DC output wire 3 is connected to the main controller 71 through a DC-DC conversion module, and the driving power supply DC output wire 3 is connected to the LED module input wire 4 through a dimming controller output wire 76. The dimming controller output wire 76 is provided with a switch light control switch connected to the main controller 71. The main controller 71 is connected to a collection module 75 for collecting the input voltage and current of the LED module.

[0028] Example 1

[0029] In this embodiment, a 0-10V dimming module 73 produced by Guangdong Dongling Power Technology Co., Ltd. is selected, with model DL-100W-V56X, a 0-10V DC dimming controller designed by Anhui Saiins Xinjin Technology Co., Ltd., two 50WLED modules 6 and a waterproof connector 5 produced by Anhui Saiins Advanced Technology Co., Ltd. The two LED modules 6 are connected in parallel with the waterproof connector 5 to form a 100W LED lighting source. The installation circuit flow is as follows: 220V AC power is connected to the dimming drive power supply 2, and the output end of the dimming drive power supply 2 outputs a 48V drive power supply DC output wire 3. The DC power is connected to the power input end of the dimming controller 7 through the waterproof connector 5, that is, the DC-DC converter 74. The stable DC power is input into the main controller 71 through the DC-DC converter 74. The power output end of the dimming controller 7, that is, the dimming controller output wire, is connected to the LED module input wire 4 connected in parallel with the two LED modules 6 through the waterproof connector 5, thus forming a complete lighting power circuit.

[0030] The positive and negative electrodes of the dimming signal line 8 connected to the dimming controller 7 are respectively connected to the positive and negative electrodes of the dimming driving power supply 2. The remote signal module communication module of this embodiment adopts the 4G.CAT1 Internet of Things communication module produced by Shanghai Quectel Communications Technology Co., Ltd., which receives the dimming signal of the remote control center and feeds the dimming signal back to the main controller. The MCU of the main controller 71 uses the STM32F103RET6 model. The chip module is based on the ARM high-density performance line 32-bit MCU, has 265-512-bit flash memory, USB, CAN, 11 timers, 3 ADCs, and 13 communication interfaces, which can meet the technical requirements of the main controller. The main controller 71 is connected to the communication module 72 circuit and receives the dimming signal of the communication module 72. The main controller 71 and The dimming module 73 circuit is connected and a dimming signal is sent through the dimming module 73. In this embodiment, the dimming signal is a 5V voltage signal output by the dimming module 73 to the dimming power supply through the dimming signal line, that is, the dimming power supply outputs 50% of the power to the LED module, that is, the actual power of the LED lighting source is 50W. A new dimming signal is input again through the remote signal module. The central controller receives the dimming signal as 3V and outputs a 3V dimming signal to the driving power supply through the signal line of the dimming module. Then the driving power supply outputs 30% of the power to the LED module light source, that is, the power of the LED module light source is 30W. By analogy, the dimming controller can output any DC voltage (i.e., dimming signal) between 0.1-9.9V, which can make the dimming power supply output 1-100% of the power of the LED module light source.

[0031] In this embodiment, if the forward dimming logic is adopted, the minimum dimming signal output by the dimming controller is 0.1V. If the remote signal unit sends a dimming signal lower than 0.5V, the main controller triggers the MOS tube, and the MOS disconnects the power circuit between the dimming power supply and the LED module light source, that is, the LED module light source is extinguished, but the dimming controller still outputs 1-3W of power to power the dimming controller to ensure the normal operation of the dimming controller.

[0032] In addition, the present application still has a collection module 75 for collecting the voltage and current input to the LED module 6, so as to monitor the real-time power of the LED module 6 in real time, and a switch light control switch connected to the main controller 71 is also provided on the output wire, so as to control the power on and off of the LED module 6 and the switch of the LED module 6 at any time.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An LED dimming device, comprising an LED module (6), characterized in that: The power input end of the LED module (6) is connected to a dimming controller (7), and the power input end of the dimming controller (7) is connected to a dimming driving power supply (2); The dimming controller (7) comprises a main controller (71), the main controller (71) is connected to a dimming module (73), the dimming module (73) is in signal communication with the dimming driving power supply (2) via a dimming signal line (8), the main controller (71) is connected to a communication module (72), and the communication module (72) is connected to a signal antenna (9).

2. The LED dimming device according to claim 1, characterized in that: The input point of the dimming driving power supply (2) is connected to a mains power supply (1).

3. The LED dimming device according to claim 1, characterized in that: The output end of the dimming driving power supply (2) is connected to the dimming controller (7) via a driving power supply DC output wire (3), and the power output end of the dimming controller is connected to the LED module (6) via an LED module input wire (4).

4. The LED dimming device according to claim 3, characterized in that: The connection ends of the driving power supply DC output wire (3) and the LED module input wire (4) are fixedly connected via a waterproof connector (5).

5. The LED dimming device according to claim 1, characterized in that: The LED modules (6) are provided in two groups, and the two groups of LED modules are arranged in parallel.

6. The LED dimming device according to claim 3, characterized in that: The rear end of the driving power supply DC output wire (3) is connected to the main controller (71) via a DC-DC conversion module, and the driving power supply DC output wire (3) is connected to the LED module input wire (4) via a dimming controller output wire (76), and the dimming controller output wire (76) is provided with a light on / off control switch connected to the main controller (71).

7. The LED dimming device according to claim 1, characterized in that: The main controller (71) is connected to a collection module (75) for collecting input voltage and current of the LED module.

8. The LED dimming device according to claim 1, characterized in that: The dimming module (73) adopts a 0-10V voltage signal module and / or a PWM control module.

9. The LED dimming device according to claim 1, characterized in that: The communication module (72) adopts any one of a Bluetooth signal module, a 4G signal module, a NB-IOT signal module, a carrier signal module and an RS485 signal module.

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