CN213988250U

CN213988250U - Control card of LED display screen

Info

Publication number: CN213988250U
Application number: CN202023166286.0U
Authority: CN
Inventors: 徐惠能; 洪荣辉; 林阳腾
Original assignee: Fujian Qiangli Photoelectricity Co Ltd
Current assignee: Fujian Qiangli Photoelectricity Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-08-17
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a control card of LED display screen, which comprises a circuit board, a power module and a sending card module, wherein the power module and the sending card module are arranged on the circuit board; the power supply module supplies power to the sending card module; the power module is also provided with a power supply interface for supplying power to the receiving card and the display module of the LED display screen. The utility model discloses integrated power module and sending card module, can reduce and be connected required connecting wire between power and the sending card, and then help reducing the connecting wire of LED display screen to help improving the packaging efficiency of LED display screen.

Description

Control card of LED display screen

Technical Field

The utility model relates to a LED display screen field especially indicates a control board of LED display screen.

Background

The LED display screen has the advantages of energy conservation, long service life, convenience in installation and the like, so that the LED display screen is widely applied to the market.

The power supply, the receiving card, the sending card and the display module of the existing LED display screen are designed separately from each other and are connected with each other by connecting wires; the LED display screen has the advantages that as the number of nodes needing to be connected among the power supply, the receiving card, the sending card and the display module of the LED display screen is large, a large number of connecting wires are needed to be adopted for the LED display screen, the problem of complicated wiring is caused, and the assembly efficiency of the LED display screen is greatly influenced; in addition, the number of the connecting wires is large, so that short circuit is easy to occur between the connecting wires, and hidden mounting troubles exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a control board of LED display screen, it helps reducing the required connecting wire of LED display screen equipment.

In order to achieve the above purpose, the solution of the present invention is:

a control card of an LED display screen comprises a circuit board, a power module and a sending card module, wherein the power module and the sending card module are arranged on the circuit board; the power supply module is electrically connected with the sending card module through a printed circuit on the circuit board and supplies power to the sending card module; the power module is also provided with a power supply interface for supplying power to the receiving card and the display module of the LED display screen.

The transmitting card module comprises an FPGA module, a cache module, a network port module, an audio input module, a DVI module, an interface module and a microprocessor module; the microprocessor module is electrically connected with the FPGA module, and the FPGA module is respectively and electrically connected with the cache module, the network port module, the audio input module, the DVI module and the interface module.

The power supply module comprises a first voltage conversion module, a second voltage conversion module, a third voltage conversion module, a fourth voltage conversion module, a fifth voltage conversion module, a sixth voltage conversion module, a seventh voltage conversion module and an eighth voltage conversion module; the output voltages of the first voltage conversion module, the second voltage conversion module, the third voltage conversion module, the fourth voltage conversion module, the fifth voltage conversion module, the sixth voltage conversion module, the seventh voltage conversion module and the eighth voltage conversion module are reduced in sequence; the first voltage conversion module supplies power to the interface module and the microprocessor module; the second voltage conversion module supplies power to the FPGA module, the network port module, the audio input module, the DVI module, the interface module and the microprocessor module; the third voltage conversion module supplies power to the FPGA module; the fourth voltage conversion module supplies power to the FPGA module and the cache module; the fifth voltage conversion module supplies power to the network port module; the sixth voltage conversion module supplies power to the FPGA module; the seventh voltage conversion module supplies power to the DVI module; and the eighth voltage conversion module supplies power to the FPGA module and the cache module.

After the technical scheme is adopted, the utility model discloses integrated sender card module and power module on the circuit board, prior art compares like this, the utility model discloses just reduced and be connected required connecting wire between sender card and the power to help reducing the required connecting wire of LED display screen equipment, and then help improving the packaging efficiency of LED display screen.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic circuit diagram of the power module of the present invention;

FIG. 3 is a schematic block diagram of a transmitter card module of the present invention;

fig. 4 is a schematic circuit diagram of the FPGA module of the transmitting card module of the present invention;

fig. 5 is a schematic circuit diagram of the cache module of the present invention;

fig. 6 is a schematic circuit diagram of the network port module of the present invention;

fig. 7 is a schematic circuit diagram of the audio input module and the interface module according to the present invention;

fig. 8 is a schematic circuit diagram of a DVI module according to the present invention;

fig. 9 is a schematic circuit diagram of a microprocessor module according to the present invention;

description of reference numerals:

the number of the circuit boards 1 is such that,

a power module 2, a first voltage conversion module 21, a second voltage conversion module 22, a third voltage conversion module 23, a fourth voltage conversion module 24, a fifth voltage conversion module 25, a sixth voltage conversion module 26, a seventh voltage conversion module 27, an eighth voltage conversion module 28, a power supply interface 29,

the system comprises a transmitting card module 3, an FPGA module 31, a cache module 32, a network port module 33, an audio input module 34, an interface module 35, a DVI module 36 and a microprocessor module 37.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

As shown in fig. 1 to 9, the present invention discloses a control card for an LED display screen, which includes a circuit board 1, and a power module 2 and a transmitting card module 3 disposed on the circuit board 1; the power module 2 is electrically connected with the sending card module 3 through a printed circuit on the circuit board 1, and the power module 2 supplies power to the sending card module 3; the power module 2 is further provided with a power supply interface 29 for supplying power to the receiving card and the display module of the LED display screen. Because integrated power module 2 and the card module of sending 3 on the circuit board 1, prior art compares like this, the utility model discloses just reduced and be connected required connecting wire between sending card and the power to help reducing the required connecting wire of LED display screen equipment, and then help improving the packaging efficiency of LED display screen.

As shown in fig. 2, the power module 2 includes a first voltage conversion module 21, a second voltage conversion module 22, a third voltage conversion module 23, a fourth voltage conversion module 24, a fifth voltage conversion module 25, a sixth voltage conversion module 26, a seventh voltage conversion module 27, and an eighth voltage conversion module 28; the output voltages of the first voltage conversion module 21, the second voltage conversion module 22, the third voltage conversion module 23, the fourth voltage conversion module 24, the fifth voltage conversion module 25, the sixth voltage conversion module 26, the seventh voltage conversion module 27 and the eighth voltage conversion module 28 are sequentially reduced, wherein the output voltages of the first voltage conversion module 21, the second voltage conversion module 22, the third voltage conversion module 23, the fourth voltage conversion module 24, the fifth voltage conversion module 25, the sixth voltage conversion module 26, the seventh voltage conversion module 27 and the eighth voltage conversion module 28 may range from 0.75V to 7V; specifically, the first voltage conversion module 21 may be configured to output 5V dc, the second voltage conversion module 22 may be configured to output 3.3V dc, the third voltage conversion module 23 may be configured to output 2.5V dc, the fourth voltage conversion module 24 may be configured to output 1.5V dc, the fifth voltage conversion module 25 may be configured to output 1.2V dc, the sixth voltage conversion module 26 may be configured to output 1.1V dc, the seventh voltage conversion module 27 may be configured to output 1.0V dc, and the eighth voltage conversion module 28 may be configured to output 0.75V dc.

As shown in fig. 3 to 9, the transmitting card module 3 includes an FPGA module 31, a buffer module 32, a network interface module 33, an audio input module 34, an interface module 35, a DVI module 36, and a microprocessor module 37; the microprocessor module 37 is electrically connected with the FPGA module 31, and the FPGA module 31 is electrically connected with the buffer module 32, the network port module 33, the audio input module 34, the interface module 35 and the DVI module 36 respectively. Wherein the first voltage conversion module 21 supplies power to the interface module 35 and the microprocessor module 37; the second voltage conversion module 22 supplies power to the FPGA module 31, the network port module 33, the audio input module 34, the DVI module 36, the interface module 35 and the microprocessor module 37; the third voltage conversion module 23 supplies power to the FPGA module 31; the fourth voltage conversion module 24 supplies power to the FPGA module 31 and the cache module 32; the fifth voltage conversion module 25 supplies power to the network port module 33; the sixth voltage conversion module 26 supplies power to the FPGA module 31; the seventh voltage conversion module 27 supplies power to the DVI module 36; the eighth voltage conversion module 28 supplies power to the FPGA module 31 and the cache module 32.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.

Claims

1. The utility model provides a control card of LED display screen which characterized in that: the circuit board is arranged on the circuit board, and the power module and the sending card module are arranged on the circuit board; the power supply module is electrically connected with the sending card module through a printed circuit on the circuit board and supplies power to the sending card module; the power module is also provided with a power supply interface for supplying power to the receiving card and the display module of the LED display screen.

2. A control card for a LED display screen according to claim 1, wherein: the transmitting card module comprises an FPGA module, a cache module, a network port module, an audio input module, a DVI module, an interface module and a microprocessor module;

the microprocessor module is electrically connected with the FPGA module, and the FPGA module is respectively and electrically connected with the cache module, the network port module, the audio input module, the DVI module and the interface module.

3. A control card for a LED display screen according to claim 2, wherein: the power supply module comprises a first voltage conversion module, a second voltage conversion module, a third voltage conversion module, a fourth voltage conversion module, a fifth voltage conversion module, a sixth voltage conversion module, a seventh voltage conversion module and an eighth voltage conversion module; the output voltages of the first voltage conversion module, the second voltage conversion module, the third voltage conversion module, the fourth voltage conversion module, the fifth voltage conversion module, the sixth voltage conversion module, the seventh voltage conversion module and the eighth voltage conversion module are reduced in sequence;

the first voltage conversion module supplies power to the receiving card interface module and the microprocessor module; the second voltage conversion module supplies power to the FPGA module, the network port module, the audio input module, the DVI module, the interface module and the microprocessor module; the third voltage conversion module supplies power to the FPGA module; the fourth voltage conversion module supplies power to the FPGA module and the cache module; the fifth voltage conversion module supplies power to the network port module; the sixth voltage conversion module supplies power to the FPGA module; the seventh voltage conversion module supplies power to the DVI module; and the eighth voltage conversion module supplies power to the FPGA module and the cache module.