A high-brightness and low-energy LED display screen driver circuit board

Abstract

The utility model discloses a high-brightness, low-energy LED display screen driver circuit board, which relates to the technical field of LED drive circuit system, including an LED light board, a group of LED lamp beads are installed on the upper surface of the LED light board, a control circuit board is fixedly connected to the bottom surface of the LED light board, a chip single-chip computer, a driving power supply, a voltage stabilizer, a column driver, a row driver and a latch register are fixedly connected to the bottom surface of the control circuit board, a heat dissipation bracket is fixedly connected to the bottom surface of the control circuit board, and a heat-absorbing aluminum plate is fixedly connected to the inner wall of the heat-absorbing bracket, and the upper surface of the heat-absorbing aluminum plate is in contact with the bottom surface of the driving power supply. The utility model has a reasonable design structure, and it can carry out suspended support installation of the LED light board through the support feet, mounting holes, mounting screws, heat dissipation holes, heat dissipation brackets, heat-absorbing aluminum plates and heat dissipation fins set, and realize effective heat absorption and heat dissipation of the driving power supply, realize rapid cooling and protection of the driving power supply, and facilitate the safe and stable use of the LED light board.

Description

Technical Field

[0001] The utility model relates to the technical field of LED drive circuit systems, in particular to a high-brightness and low-energy-consumption LED display screen drive circuit board. Background Art

[0002] In recent years, LED lamp technology has developed rapidly. More and more industries have gradually adopted LED lamps to replace lighting methods, especially LED display screens, which have been widely used in many fields. Currently, commonly used LED display screens can be divided into 2-scan, 4-scan, 8-scan and 16-scan display screens. Different scanning frequencies require different drive circuits and drive chips to drive, and there are differences in brightness, sensitivity, etc. How to achieve the same brightness display effect by using a smaller drive current is a difficult problem to solve in this field. As all walks of life have successively advocated energy conservation, environmental protection and efficient use of resources, the widespread popularization of the LED display industry has also made it gradually become the main force of energy conservation and environmental protection.

[0003] Among them, the utility model patent with announcement number CN206516328U discloses a high-brightness and low-energy consumption LED display driver circuit board. However, when used in the above patent, the driving power supply often dissipates heat and generates high temperature during the power supply process, and does not have the effect of auxiliary heat dissipation, thereby affecting the LED luminous efficiency and not facilitating the stable use of the LED light board. For this reason, we provide a high-brightness and low-energy consumption LED display driver circuit board to solve the above problems. Utility Model Content

[0004] 1) Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a high-brightness and low-energy-consumption LED display screen driving circuit board.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-brightness, low-energy consumption LED display screen driving circuit board, comprising an LED light board, a group of LED lamp beads are installed on the upper surface of the LED light board, a control circuit board is fixedly connected to the bottom surface of the LED light board, a chip single-chip computer, a driving power supply, a voltage stabilizer, a column driver, a row driver and a latch register are fixedly connected to the bottom surface of the control circuit board, a heat dissipation bracket is fixedly connected to the bottom surface of the control circuit board, a heat-absorbing aluminum plate is fixedly connected to the inner wall of the heat-absorbing aluminum plate, the upper surface of the heat-absorbing aluminum plate is in contact with the bottom surface of the driving power supply, and two groups of heat dissipation fins are fixedly inlaid on the outer surface of the heat-absorbing aluminum plate.

[0008] Furthermore, two groups of mounting holes are provided on the upper surface of the LED light board, and a mounting screw is sleeved inside each of the mounting holes.

[0009] Furthermore, a supporting foot is sleeved on the outer surface of each mounting screw, and a top end of each supporting foot is fixedly connected to the bottom surface of the LED light board.

[0010] Furthermore, two groups of heat dissipation holes are provided on the upper surface of the LED light board, and the number of the two groups of heat dissipation holes is at least eight.

[0011] Furthermore, the model of the chip microcomputer is AT89C51.

[0012] 3) Beneficial effects:

[0013] Compared with the prior art, the high-brightness and low-energy LED display driver circuit board has the following beneficial effects:

[0014] 1. The utility model can perform suspended support installation on the LED light board through the provision of support feet, mounting holes, mounting screws, heat dissipation holes, heat dissipation brackets, heat-absorbing aluminum plates and heat dissipation fins, and realize effective heat absorption and heat dissipation of the driving power supply, realize rapid cooling and protection of the driving power supply, and facilitate safe and stable use of the LED light board.

[0015] 2. The utility model is equipped with a chip microcomputer, a driving power supply, a voltage stabilizer, a row driver and a column driver. The voltage stabilizer can realize constant current power supply of the control circuit board and constant current drive of the LED lamp beads, which is convenient for the stable brightness display of the LED lamp beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a high-brightness, low-energy-consumption LED display screen driver circuit board of the utility model;

[0017] Figure 2 This is a bottom view of the control circuit board of the utility model;

[0018] Figure 3 It is a cross-sectional view of the front view of the LED light board of the utility model;

[0019] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0020] In the figure: 1. LED light board; 2. LED lamp beads; 3. Mounting screws; 4. Control circuit board; 5. Row driver; 6. Latch register; 7. Support pads; 8. Column driver; 9. Voltage stabilizer and current regulator; 10. Driving power supply; 11. Heat dissipation bracket; 12. Chip microcontroller; 13. Mounting holes; 14. Heat-absorbing aluminum plate; 15. Heat dissipation fins; 16. Heat dissipation holes. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1-4 As shown, the utility model provides a technical solution: a high-brightness and low-energy consumption LED display driving circuit board, comprising an LED light board 1, a group of LED lamp beads 2 are installed on the upper surface of the LED light board 1, a control circuit board 4 is fixedly connected to the bottom surface of the LED light board 1, a chip single-chip computer 12, a driving power supply 10, a voltage regulator 9, a column driver 8, a row driver 5 and a latch register 6 are fixedly connected to the bottom surface of the control circuit board 4, a heat dissipation bracket 11 is fixedly connected to the bottom surface of the control circuit board 4, a heat-absorbing aluminum plate 14 is fixedly connected to the inner wall of the heat-absorbing aluminum plate 11, the upper surface of the heat-absorbing aluminum plate 14 is in contact with the bottom surface of the driving power supply 10, and two groups of heat dissipation fins 15 are fixedly inlaid on the outer surface of the heat-absorbing aluminum plate 14.

[0023] Two groups of mounting holes 13 are provided on the upper surface of the LED light board 1. A mounting screw 3 is sleeved inside each mounting hole 13, so that the LED light board 1 can be screwed and installed, which is convenient for the stable use of the LED light. A supporting foot 7 is sleeved on the outer surface of each mounting screw 3. The top of each supporting foot 7 is fixedly connected to the bottom surface of the LED light board 1, so that the LED light board 1 can be suspended and supported, which is convenient for the heat dissipation of the LED light board 1.

[0024] Two groups of heat dissipation holes 16 are provided on the upper surface of the LED lamp board 1. The number of the two groups of heat dissipation holes 16 is at least eight, which can achieve heat dissipation of the LED lamp board 1 and facilitate the stable use of the LED lamp board 1. The model of the chip microcomputer 12 is AT89C51. This chip microcomputer has a good control effect and is convenient for the lighting use of the LED lamp.

[0025] Working principle: When in use, first install the LED lamp board 1 in the air inside the LED lamp holder through the support feet 7, the mounting holes 13 and the mounting screws 3. Through the chip microcontroller 12, the driving power supply 10, the voltage stabilizer 9, the row driver 5 and the column driver 8 arranged on the control circuit board 4, the constant current power supply of the circuit board can be realized, and the stable brightness display of the LED lamp board 1 and the LED lamp beads 2 can be achieved. At the same time, during use, the heat-absorbing aluminum plate 14 is used to absorb the heat generated by the driving power supply 10 when it is working, and it is quickly discharged through the heat dissipation fins 15 and the heat dissipation holes 16, so as to achieve safe and stable use of the LED lamp.

Claims

1. A high-brightness, low-energy LED display screen driving circuit board, comprising an LED light board (1), characterized in that: A group of LED lamp beads (2) are mounted on the upper surface of the LED lamp board (1); a control circuit board (4) is fixedly connected to the bottom surface of the LED lamp board (1); a chip single chip computer (12), a driving power supply (10), a voltage regulator (9), a column driver (8), a row driver (5) and a latch register (6) are fixedly connected to the bottom surface of the control circuit board (4); a heat dissipation bracket (11) is fixedly connected to the bottom surface of the control circuit board (4); a heat absorbing aluminum plate (14) is fixedly connected to the inner wall of the heat dissipation bracket (11); the upper surface of the heat absorbing aluminum plate (14) is in contact with the bottom surface of the driving power supply (10); and two groups of heat dissipation fins (15) are fixedly inlaid on the outer surface of the heat absorbing aluminum plate (14).

2. A high brightness and low energy consumption LED display screen driving circuit board according to claim 1, characterized in that: Two groups of mounting holes (13) are provided on the upper surface of the LED lamp board (1), and a mounting screw (3) is sleeved inside each mounting hole (13).

3. A high brightness and low energy consumption LED display screen driving circuit board according to claim 2, characterized in that: The outer surface of each mounting screw (3) is sleeved with a supporting foot (7), and the top end of each supporting foot (7) is fixedly connected to the bottom surface of the LED light board (1).

4. The high-brightness and low-energy consumption LED display driving circuit board according to claim 1, characterized in that: The upper surface of the LED lamp board (1) is provided with two groups of heat dissipation holes (16), and the number of the two groups of heat dissipation holes (16) is at least eight.

5. The high-brightness and low-energy consumption LED display driving circuit board according to claim 1, characterized in that: The model of the chip single chip computer (12) is AT89C51.

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